MSENSE® DGA 2/3 Operating Instructions PDF

Online oil analysis MSENSE® DGA 2/3 Operating instructions 4001150/12 EN © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infringements will result in liabil...

Online oil analysis MSENSE® DGA 2/3 Operating instructions 4001150/12 EN © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents, utility models or designs. The product may have been altered since this document was published. We reserve the right to change the technical data, design and scope of supply. Generally the information provided and agreements made when processing the individual quotations and orders are binding. The original operating instructions were written in German. Table of contents Table of contents 1 Introduction......................................................................................................................... 6 1.1 Manufacturer....................................................................................................................................... 6 1.2 Subject to change without notice........................................................................................................ 6 1.3 Completeness..................................................................................................................................... 6 1.4 Safekeeping........................................................................................................................................ 6 1.5 Notation conventions.......................................................................................................................... 6 1.5.1 Hazard communication system............................................................................................................................. 7 1.5.2 Information system................................................................................................................................................ 7 1.5.3 Instruction system................................................................................................................................................. 8 1.5.4 Typographic conventions...................................................................................................................................... 8 2 Security............................................................................................................................... 9 2.1 Intended use....................................................................................................................................... 9 2.2 Fundamental safety instructions......................................................................................................... 9 2.3 Personnel qualification...................................................................................................................... 11 2.4 Personal protective equipment......................................................................................................... 12 3 IT security.......................................................................................................................... 14 4 Product description.......................................................................................................... 15 4.1 Scope of delivery.............................................................................................................................. 16 4.2 Function description.......................................................................................................................... 17 4.3 Design/versions................................................................................................................................ 18 4.4 Safety markings and nameplate....................................................................................................... 19 5 Packaging, transport and storage.................................................................................. 20 5.1 Purpose............................................................................................................................................ 20 5.2 Suitability, structure and production.................................................................................................. 20 5.3 Markings........................................................................................................................................... 20 5.4 Transportation, receipt and handling of shipments........................................................................... 20 5.5 Storage of shipments........................................................................................................................ 22 5.6 Further transport............................................................................................................................... 22 6 Mounting........................................................................................................................... 23 6.1 Installation recommendation............................................................................................................. 23 Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 3  Table of contents 6.2 Mounting the device.......................................................................................................................... 24 6.2.1 Preparing the transformer and ball valve............................................................................................................ 25 6.2.2 Mounting the MSENSE® DGA 2/3...................................................................................................................... 29 6.3 Electrical connection......................................................................................................................... 38 6.3.1 Electromagnetic compatibility.............................................................................................................................. 39 6.3.2 Cable recommendation....................................................................................................................................... 39 6.3.3 Routing and preparing the cables....................................................................................................................... 39 6.3.4 Supply voltage and protective conductor............................................................................................................ 40 6.3.5 Device grounding................................................................................................................................................ 41 6.3.6 Analog outputs.................................................................................................................................................... 41 6.3.7 Main switching contacts...................................................................................................................................... 43 6.3.8 SCADA connection............................................................................................................................................. 44 6.4 Ensuring offshore capability.............................................................................................................. 47 7 Commissioning................................................................................................................. 50 7.1 Service interface............................................................................................................................... 50 7.2 Installing the MESSKO® MSET parameterization software............................................................. 51 7.3 Commissioning in existing systems.................................................................................................. 52 7.4 Parameterization............................................................................................................................... 52 7.4.1 Settings for carbon monoxide (DGA 3 only), hydrogen and H2O concentrations in the oil................................ 53 7.4.2 General settings.................................................................................................................................................. 54 7.4.3 Modbus settings.................................................................................................................................................. 56 8 Operation........................................................................................................................... 57 8.1 Operating the device with display..................................................................................................... 58 8.1.1 General operation............................................................................................................................................... 59 8.1.2 Main screen / operating display.......................................................................................................................... 60 8.1.3 Events................................................................................................................................................................. 62 8.2 Operating the device without display................................................................................................ 64 9 Fault elimination............................................................................................................... 65 9.1 Messages regarding the safety switching contact............................................................................ 65 9.2 Display faults.................................................................................................................................... 65 9.3 Replacing a fuse............................................................................................................................... 65 10 Maintenance...................................................................................................................... 67 10.1 Inspection......................................................................................................................................... 67 10.2 Maintenance..................................................................................................................................... 68 4 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 Table of contents 10.3 Oil extraction..................................................................................................................................... 69 10.4 Device field calibration...................................................................................................................... 70 10.4.1 Taking a sample for field calibration.................................................................................................................... 70 10.4.2 Field calibration................................................................................................................................................... 72 10.4.3 Reading out the service database....................................................................................................................... 78 10.5 Cleaning............................................................................................................................................ 80 11 Removal............................................................................................................................. 81 11.1 Removing the MSENSE® DGA 2/3.................................................................................................. 81 12 Disposal............................................................................................................................. 89 12.1 SVHC information in accordance with the REACH regulation.......................................................... 89 13 Technical data................................................................................................................... 90 14 Appendix........................................................................................................................... 93 14.1 Device dimensions with 285 mm measuring pipe length.................................................................. 93 14.2 Device dimensions with 507 mm measuring pipe length.................................................................. 94 14.3 Connecting flange dimensions.......................................................................................................... 95 14.4 Electrical connection......................................................................................................................... 97 14.5 Data point table for Modbus RTU..................................................................................................... 98 14.6 Spare parts list................................................................................................................................ 100 Glossary.......................................................................................................................... 102 Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 5  1 Introduction 1 Introduction This technical file contains detailed descriptions on the safe and proper in- stallation, connection, commissioning and monitoring of the product. This technical document is intended solely for specially trained and autho- rized personnel. 1.1 Manufacturer Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg Germany Tel.: +49 941 4090-0 E-mail: [email protected] Internet: www.reinhausen.com MR Reinhausen customer portal: https://portal.reinhausen.com Further information on the product and copies of this technical file are avail- able from this address if required. 1.2 Subject to change without notice The information contained in this technical file comprises the technical speci- fications approved at the time of printing. Significant modifications will be in- cluded in a new edition of the technical file. The document number and version number of this technical file are shown in the footer. 1.3 Completeness This technical file is incomplete without the supporting documents. The following documents apply to this product: ▪ MSENSE® DGA 2/3 operating instructions ▪ MESSKO® MSET parameterization software operating instructions ▪ Works certification 1.4 Safekeeping Keep this technical file and all supporting documents ready at hand and ac- cessible for future use at all times. 1.5 Notation conventions This section contains an overview of the symbols and textual emphasis used. 6 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 1 Introduction 1.5.1 Hazard communication system Warnings in this technical file are displayed as follows. 1.5.1.1 Warning relating to section Warnings relating to sections refer to entire chapters or sections, sub-sec- tions or several paragraphs within this technical document. Warnings relat- ing to sections have the following format: WARNING Type of danger! Source of the danger and its consequences. ► Action ► Action 1.5.1.2 Embedded warning information Embedded warnings refer to a particular part within a section. These warn- ings apply to smaller units of information than the warnings relating to sec- tions. Embedded warnings use the following format: DANGER! Instruction for avoiding a dangerous situation. 1.5.1.3 Signal words Depending on the product, the following signal words are used: Signal word Meaning DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Indicates measures to be taken to prevent damage to property. Table 1: Signal words in warning notices 1.5.2 Information system Information is designed to simplify and improve understanding of particular procedures. In this technical file it is laid out as follows: Important information. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 7  1 Introduction 1.5.3 Instruction system This technical file contains single-step and multi-step instructions. Single-step instructions Instructions which consist of only a single process step are structured as fol- lows: Aim of action ü Requirements (optional). ► Step 1 of 1. ð Result of step (optional). ð Result of action (optional). Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action ü Requirements (optional). 1. Step 1. ð Result of step (optional). 2. Step 2. ð Result of step (optional). ð Result of action (optional). 1.5.4 Typographic conventions Typographic convention Purpose Example UPPERCASE Operating controls, switches ON/OFF [Brackets] PC keyboard [Ctrl] + [Alt] Bold Software operating controls Press Continue button …>…>… Menu paths Parameter > Control parameter Italics System messages, error messages, Function monitoring alarm triggered signals [► Number of pages] Cross reference [► Page 41]. Dotted underscore............................................. Glossary entry, abbreviations, defini- Glossary entry........................ tions, etc. Table 2: Typographic conventions used in this technical file 8 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 2 Security 2 Security ▪ Read this technical file through carefully to familiarize yourself with the product. ▪ This technical file is a part of the product. ▪ Read and observe the safety instructions provided in this chapter in partic- ular. ▪ Observe the warnings in this technical file to avoid function-related dan- gers. ▪ The product is manufactured based on state-of-the-art technology. Never- theless, danger to life and limb for the user or impairment of the product and other material assets may arise in the event of improper use. 2.1 Intended use The product is designed solely for use in stationary large-scale systems. It is designed to detect and report emerging, potentially harmful trends in the monitored equipment (e.g. transformer) in good time by measuring the con- centration of gases and moisture in the equipment's insulating oil. The device is not designed and is not suitable for detecting rapidly develop- ing faults and therefore is not intended to protect the equipment from such faults (e.g. through shutdown). For this, please use safety devices that have been designed for this purpose. If used as intended and in compliance with the requirements and conditions specified in this technical file as well as the warning notices in this technical file and attached to the product, then the product does not present any dan- ger to people, property or the environment. This applies throughout the ser- vice life of the product, from delivery, installation and operation to removal and disposal. The following is considered intended use: ▪ Operate the product in accordance with this technical document, the agreed-upon delivery conditions and the technical data. ▪ Ensure that all necessary work is performed by qualified personnel only. ▪ Only use the devices supplied for the intended purpose and in accordance with the specifications in this technical document. ▪ Observe the notices in this technical document regarding electromagnetic compatibility and the technical data. 2.2 Fundamental safety instructions To prevent accidents, malfunctions and damage as well as unacceptable ad- verse effects on the environment, those responsible for transport, installa- tion, operation, maintenance and disposal of the product or parts of the prod- uct must ensure the following: Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 9  2 Security Personal protective equipment Loosely worn or unsuitable clothing increases the danger of becoming trapped or caught up in rotating parts and the danger of getting caught on protruding parts. This results in danger to life and limb. ▪ All necessary devices and personal protective equipment required for the specific task, such as a hard hat, safety footwear, etc. must be worn. Ob- serve the "Personal protective equipment" [►Section 2.4, Page 12] sec- tion. ▪ Never wear damaged personal protective equipment. ▪ Never wear rings, necklaces or other jewelry. ▪ If you have long hair, wear a hairnet. Work area Untidy and poorly lit work areas can lead to accidents. ▪ Keep the work area clean and tidy. ▪ Make sure that the work area is well lit. ▪ Observe the applicable laws for accident prevention in the relevant coun- try. Explosion protection Highly flammable or explosive gases, vapors and dusts can cause serious explosions and fire. ▪ Do not install or operate the product in areas where a risk of explosion is present. Safety markings Warning signs and safety information plates are safety markings on the product. They are an important aspect of the safety concept. Safety mark- ings are depicted and described in the chapter "Product description". ▪ Observe all safety markings on the product. ▪ Make sure all safety markings on the product remain intact and legible. ▪ Replace safety markings that are damaged or missing. Ambient conditions To ensure reliable and safe operation, the product must only be operated under the ambient conditions specified in the technical data. ▪ Observe the specified operating conditions and requirements for the in- stallation location. 10 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 2 Security Modifications and conversions Unauthorized or inappropriate changes to the product may lead to personal injury, material damage and operational faults. ▪ Only modify the product after consultation with Maschinenfabrik Rein- hausen GmbH. Spare parts Spare parts not approved by Maschinenfabrik Reinhausen GmbH may lead to physical injury, damage to the product and malfunctions. ▪ Only use spare parts that have been approved by Maschinenfabrik Rein- hausen GmbH. ▪ Contact Maschinenfabrik Reinhausen GmbH. Working during operation You must only operate the product when it is in a sound operational condi- tion. Otherwise it poses a danger to life and limb. ▪ Regularly check the operational reliability of safety equipment. ▪ Perform the inspection tasks described in this technical document regu- larly. 2.3 Personnel qualification The person responsible for assembly, commissioning, operation, mainte- nance and inspection must ensure that the personnel are sufficiently quali- fied. Electrically skilled person The electrically skilled person has a technical qualification and therefore has the required knowledge and experience, and is also conversant with the ap- plicable standards and regulations. The electrically skilled person is also pro- ficient in the following: ▪ Can identify potential dangers independently and is able to avoid them. ▪ Is able to perform work on electrical systems. ▪ Is specially trained for the working environment in which (s)he works. ▪ Must satisfy the requirements of the applicable statutory regulations for accident prevention. Electrically trained persons An electrically trained person receives instruction and guidance from an electrically skilled person in relation to the tasks undertaken and the poten- tial dangers in the event of inappropriate handling as well as the protective devices and safety measures. The electrically trained person works exclu- sively under the guidance and supervision of an electrically skilled person. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 11  2 Security Operator The operator uses and operates the product in line with this technical file. The operating company provides the operator with instruction and training on the specific tasks and the associated dangers arising from improper han- dling. Technical Service We strongly recommend having maintenance, repairs and retrofitting carried out by our Technical Service department. This ensures that all work is per- formed correctly. If maintenance is not carried out by our Technical Service department, please ensure that the personnel who carry out the mainte- nance are trained and authorized to do so by Maschinenfabrik Reinhausen GmbH. MR Service & Complaint Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg Germany [email protected] [email protected] 2.4 Personal protective equipment Personal protective equipment must be worn during work to minimize risks to health. ▪ Always wear the personal protective equipment required for the job at hand. ▪ Never wear damaged personal protective equipment. ▪ Observe information about personal protective equipment provided in the work area. Protective clothing Close-fitting work clothing with a low tearing strength, with tight sleeves and with no protruding parts. It mainly serves to protect the wearer against being caught by moving machine parts. Safety shoes To protect against falling heavy objects and slipping on slippery surfaces. Safety glasses To protect the eyes from flying parts and splashing liq- uids. Visor To protect the face from flying parts and splashing liq- uids or other dangerous substances. Hard hat To protect against falling and flying parts and materials. 12 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 2 Security Hearing protection To protect against hearing damage. Protective gloves To protect against mechanical, thermal and electrical hazards. Table 3: Personal protective equipment Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 13  3 IT security 3 IT security Observe the following recommendations to operate the product safely. ▪ Ensure that only authorized personnel have access to the device. ▪ Only use the device within an ESP (electronic security perimeter). ▪ Ensure that the device is only operated by trained personnel who are fa- miliar with IT security. ▪ All protocol interfaces (Modbus RTU, Modbus TCP, DNP3 TCP and IEC 61850-8-1 MMS) only have read-access to the MSENSE® DGA 2/3. Changing parameters or data via this is not possible. ▪ Access to the parameterization via the MESSKO® MSET parameteriza- tion software can be protected through the use of passwords. Change the passwords regularly. Observe the information of access rights, user levels and password settings in the MESSKO® MSET parameterization software operating instructions. 14 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 4 Product description 4 Product description The detection of dissolved gases in transformer oil is generally considered to be the first indication of emerging faults in transformers. Several interna- tional standards highlight the relevance of this examination method, includ- ing the IEEE Std C57.104™-2008, IEC 60422, IEC 60567 and IEC 60599 standards. The Dissolved Gas Analysis (DGA) method is fast, low-cost and possible without disconnecting the transformer. The composition of the gases pro- vides initial key information on fault events such as partial discharges, over- heating, arcs and overload. This knowledge enables sound risk assessment and the early initiation of measures for corrective action. The standards listed above recommend that oil samples be taken at regular intervals and that they be analyzed by a laboratory. In addition to a DGA, fur- ther examinations are usually performed, such as the determination of the moisture in oil, the dielectric strength and the turbidity. Two gases in particular are to be considered during a DGA: hydrogen (H2) and carbon monoxide (CO), since these are generated in virtually all occur- ring faults. The occurrence of hydrogen is an indication of electrical faults in the transformer, and carbon monoxide is generated during the decomposi- tion of the paper insulation, which is caused by overheating. Increased moisture in the oil significantly reduces the dielectric strength of the insulating oil and also promotes paper decomposition; thus, monitoring the water content (H2O) in the oil provides essential additional information for the assessment of risks. Continuous online monitoring of these two gases and the moisture enables early detection of emerging, potentially harmful trends. As soon as defined warning thresholds are exceeded, further analyses can be carried out and countermeasures can be taken at an early stage. The costs for quickly im- plemented measures are generally much lower than those implemented at a later date, and especially after a failure of the transformer with the resulting consequential costs. Messko has developed the MSENSE® DGA 2/3 online DGA device for pre- cisely this purpose. It continuously monitors the gas concentrations of hydro- gen and carbon monoxide (MSENSE® DGA 3) as well as the moisture in oil, and issues warning or alarm messages if defined gas or moisture concentra- tions are exceeded or if the rates of increase are too high. This chapter contains an overview of the design and function of the product. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 15  4 Product description The device is available in two device versions: Measured variables Hydrogen (H2) Carbon Moisture Oil tempera- monoxide (H2O) ture (CO) MSENSE® Yes No Yes Yes DGA 2 MSENSE® Yes Yes Yes Yes DGA 3 MSENSE® DGA 2 for measuring and analyzing the fault gas hydrogen (H2) present in the transformer oil, for detecting the oil moisture content and for measuring the oil temperature. MSENSE® DGA 3 for measuring and analyzing the fault gases hydrogen (H2) and carbon monoxide (CO) present in the transformer oil, for detecting the oil moisture content and for measuring the oil temperature. The following options are available for both device versions: ▪ 2-line display and 3 operating keys ▪ Housing color RAL 7033 or 7038 ▪ Various mounting flanges DN50 / DN80 ▪ Two measuring pipe lengths for optimal mounting position ▪ Communication protocols DNP3 TCP, 61850-8-1 MMS or Modbus TCP (all via MESSKO® protocol converter, available separately) ▪ Offshore version 4.1 Scope of delivery Upon receipt, check the delivery for completeness. ▪ MSENSE® DGA 2 or 3 ▪ Operating instructions and works certification ▪ Ball valve with mounting flange, safety chain and dummy plug ▪ Chain connector for safety chain ▪ USB storage medium with MESSKO® MSET parameterization software ▪ USB connection cable for connecting a computer to the device ▪ 5-pole plug for assembling an RS485 connection cable (Modbus RTU) ▪ Oil extraction adapter ▪ Two sets for extracting and shipping oil samples ▪ With the offshore model: One tube of grease 16 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 4 Product description 4.2 Function description The MSENSE® DGA 2/3 measuring head is positioned in the transformer in- sulating oil. There is often a large distance between the measuring head and the origin of the gases. It is therefore important for the early detection of gases that the oil at the installation position is in motion, either due to natural convection or due to artificially generated oil circulation. Observe the addi- tional information regarding this in the chapter "Installation recommenda- tions" [►Section 6.1, Page 23]. The gases dissolved in the oil are dissolved out via a capillary membrane in the device measuring head. Sensors for hydrogen and carbon monoxide (depending on the version) convert the concentrations of gas present into electrical signals. A gold coating prevents unwanted chemical reactions that could distort the measured results. The device controller converts the electrical signals into gas concentration values in the unit ppm (parts per million). To improve the measurement re- sults under different operating conditions, factors such as the oil temperature and ambient temperature as well as the flow velocity of the oil at the sensor head are taken into account. In addition, the device is equipped with a sensor for measuring the level of moisture in the oil. This measurement is also taken at the measuring head directly in the oil. The measured values determined are stored in the internal device database and, if the device is equipped with a display, they are also displayed on it. The current and historical measured data can be called up and analyzed fur- ther with the MESSKO® MSET parameterization software. The measured values, along with warning and alarm information, can be transmitted remotely via the analog interfaces and relay outputs on the de- vice. Furthermore, communication via various in-part optional protocol inter- faces for connection with SCADA systems is also possible. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 17  4 Product description 4.3 Design/versions Figure 1: MSENSE® DGA 2/3 DGA 2 Measurement components H2, DGA 3 Measurement components H2, moisture in oil and oil tempera- CO, moisture in oil and oil tem- ture (for mineral oils) perature (for mineral oils) 1 Ventilation 2 Housing cover screw connection 3 Ball valve locking lever 4 Display (optional) 5 ENTER key 6 DOWN key 7 UP key 8 Supply voltage cable screw con- nection (3x M20 x 1.5 WADI or 3x ½“ NPT) 9 Signaling relay cable screw con- 10 Analog outputs cable screw con- nection nection 11 Interface (5-pole) for service PC 12 Measuring pipe (285 mm / and Modbus RTU communication 507 mm) 13 Ball valve clamp connection 14 Mounting flange o-ring gasket: DN50 PN6/PN16 and DN80 PN16 Mounting flange any gasket: DN50 PN16 and DN80 PN16 15 Measuring head 16 Ball valve 17 Grounding screw 18 Safety chain 19 Fixing screw for safety chain 20 Connection for venting and taking samples 21 Housing cover 18 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 4 Product description Additional signal protocols DNP 3.0; (with additional protocol converter) Modbus TCP; IEC 61850-8-1 MMS (optional) Accessories (optional) Power supply unit for protocol con- verter Offshore version Offshore 4.4 Safety markings and nameplate The following safety markings are used on the product: Figure 2: Safety markings and nameplate Description 1 Warning sign "Do not close!" on the slide valve 2 Nameplate 3 Observe the documentation 4 Observe the documentation: See the note about the oil extraction adapter in the chapter "Mounting the MSENSE® DGA 2/3" [►Section 6.2.2, Page 29] 5 Ground connection on the ball valve Table 4: Safety markings and nameplate Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 19  5 Packaging, transport and storage 5 Packaging, transport and storage 5.1 Purpose The packaging is designed to protect the packaged product during transport, loading, unloading and during periods of storage in such a way that no detri- mental changes occur. The packaging must protect the goods against per- mitted transport stresses such as vibration, knocks and moisture (rain, snow, condensation). The packaging also prevents the packaged goods from moving impermissi- bly within the packaging. 5.2 Suitability, structure and production The goods are packaged in a sturdy cardboard box. This ensures that the shipment is secure when in the intended transportation position and that none of its parts touch the loading surface of the means of transport or touch the ground after unloading. Inlays inside the box stabilize the goods, preventing prohibited changes in position, and protecting them from vibration. 5.3 Markings The packaging bears a signature with instructions for safe transport and cor- rect storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Top Fragile Attach lifting Center of mass moisture gear here Table 5: Shipping pictograms 5.4 Transportation, receipt and handling of shipments In addition to vibrations, jolts must also be expected during transportation. To prevent possible damage, avoid dropping, tipping, knocking over and col- liding with the product. If the packaging tips over or falls, damage is to be expected regardless of the weight. 20 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 5 Packaging, transport and storage Every delivered shipment must be checked for the following by the recipient before acceptance (acknowledgment of receipt): ▪ Completeness based on the delivery slip ▪ External damage of any type. The checks must take place after unloading when the cartons or transport container can be accessed from all sides. Visible damage If external transport damage is found upon receipt of the shipment, proceed as follows: ▪ Immediately record the transport damage found in the shipping docu- ments and have this countersigned by the carrier. ▪ In the event of severe damage, total loss or high damage costs, immedi- ately notify the sales department at Maschinenfabrik Reinhausen GmbH and the relevant insurance company. ▪ After identifying damage, do not modify the condition of the shipment fur- ther and retain the packaging material until an inspection decision has been made by the transport company or the insurance company. ▪ Record the details of the damage immediately on site together with the carrier involved. This is essential for any claim for damages. ▪ If possible, photograph damage to packaging and packaged goods. This also applies to signs of corrosion on the packaged goods due to moisture inside the packaging (rain, snow, condensation). ▪ Be absolutely sure to also check the sealed packaging. Hidden damage When damage is not determined until unpacking after receipt of the ship- ment (hidden damage), proceed as follows: ▪ Make the party responsible for the damage liable as soon as possible by telephone and in writing, and prepare a damage report. ▪ Observe the time periods applicable to such actions in the respective country. Inquire about these in good time. With hidden damage, it is very hard to make the transportation company (or other responsible party) liable. Any insurance claims for such damage can only be successful if relevant provisions are expressly included in the insur- ance terms and conditions. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 21  5 Packaging, transport and storage 5.5 Storage of shipments When selecting and setting up the storage location, ensure the following: ▪ Store the product and accessories in the original packaging until installa- tion. ▪ Protect stored goods against moisture (rain, flooding, water from melting snow and ice), dirt, pests such as rats, mice, termites etc. and against unauthorized access. ▪ Store crates and boxes on pallets, timber beams or planks as protection against ground moisture and for improved ventilation. ▪ Ensure that the foundation has sufficient load-bearing capacity. ▪ Keep entrance paths clear. ▪ Check the stored goods at regular intervals. Also take appropriate action after storms, heavy rain or snow etc. 5.6 Further transport Use the original product packaging for further transport. If you transport the product to the final installation site in a mounted state, observe the following information in order to protect the product against me- chanical damage due to external influences. Transport packaging requirements ▪ Select packaging suitable for the duration of transport or storage, taking the climatic conditions into consideration. ▪ Ensure that the packaging protects the product against transport stress such as shaking, vibrations and impacts. ▪ Ensure that the packaging protects the product against moisture such as rain, snow and condensation. ▪ Ensure that the packaging allows for sufficient air circulation in order to prevent the formation of condensation. 22 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 6 Mounting This chapter describes how to correctly mount and connect the device. DANGER Electric shock! Risk of fatal injury due to electrical voltage. Always observe the following safety regulations when working in or on electrical equipment. ► Disconnect the equipment. ► Lock the equipment to prevent an unintentional restart. ► Make sure all poles are de-energized. ► Ground and short-circuit. ► Cover or cordon off adjacent energized parts. NOTICE Damage to the device! Electrostatic discharge can lead to damage to the device. ► Take precautionary measures to prevent the build-up of electrostatic charges on work surfaces and personnel. 6.1 Installation recommendation Figure 3: Installation recommendation Recommended installation position 1 Side wall of the transformer, half way up Alternative installation positions 2 Connection pipe from the cooling system to the transformer tank Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 23  6 Mounting Less recommended installation positions 3 On the side in the lower area; so long as oil circulation is ensured at the in- tended position, installing the device here may be considered. 4 Connection pipe from the transformer tank to the cooling system: the oil tem- peratures here can be very high and influence the quality of the measure- ments Impermissible installation positions 5 On top of the transformer cover, installed vertically (display faces upwards) Ensure that the ventilation openings (see chapter "Design" [►Section 4.3, Page 18] and drawing "Electrical connection" [►Section 14.4, Page 97] in the appendix) are not covered and have at least 2 cm clearance to neigh- boring devices. 6.2 Mounting the device NOTICE Danger of damaging the device measuring pipe! Closing a slide valve when the device is inserted can damage the measur- ing pipe. ► Do not close a slide valve when the device is inserted. ► Observe Mounting and Disassembly Instructions! ► Attach the warning sign "Do not close!" included in the delivery to the slide valve. ► Remove the warning sign after removing the device. Figure 4: Warning sign on the ball valve 24 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 6.2.1 Preparing the transformer and ball valve ü A flange is mounted on the transformer that matches the device ball valve flange. 1. Carefully remove the ball valve from the packaging and protect it against damage. 2. Remove the fixing screw from the dummy plug. Figure 5: Unchaining the dummy plug 3. Release the clamp connection. Figure 6: Releasing the clamp connection Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 25  6 Mounting 4. Pulling the dummy plug out Figure 7: Pulling the dummy plug out Package the dummy plug and store safely in case the device is to be re- moved at a later date. 5. Turn the ball valve lever to the "closed" position. Figure 8: Closing the ball valve NOTICE Missing or incorrectly positioned round gasket Non-tight seal and possible oil leakage. ► Ensure that all round gaskets remain in position in the ball valve when lu- bricating. 26 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 6. Lubricate the two round gaskets at the front of the ball valve. Figure 9: Lubricating the ball valve gaskets 7. Lubricate the two round gaskets at the rear of the ball valve. Figure 10: Lubricating the ball valve gaskets 8. NOTICE! Mounting errors can lead to non-tight seals and thus uncon- trolled oil leakage. Ensure that the supplied flange gasket is inserted and that it remains in the groove between the flanges. In the flange version without groove, a flat gasket that is not included in the delivery is neces- sary (see Connecting flange dimensions [►Section 14.3, Page 95]). Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 27  6 Mounting 9. Mount the closed ball valve on the transformer and align via the elongated holes so that the locking lever is at the top. Use fastening materials made of stainless steel A4 in the strength category -70. Figure 11: Mounting the closed ball valve Flange Screws WAF Nm DN50 PN6 M12 A4-70 19/18 62 DN50 PN16 M16 A4-70 24 150 DN80 PN16 M16 A4-70 24 150 Grease the steel clamping ring regularly with Vaseline or the grease sup- plied to protect it against corrosion; see also chapter Ensuring offshore ca- pability [►Section 6.4, Page 47]. 28 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 6.2.2 Mounting the MSENSE® DGA 2/3 1. Remove the device from the packaging and place it securely on a scratch- resistant and non-slip level surface. Figure 12: Setting the device down securely When doing so, ensure that the display of the device version with display is not damaged. 2. Remove the adhesive strip from the protective cap and pull the protective cap off of the device. Figure 13: Removing the protective cap Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 29  6 Mounting Store the protective cap in case the device is to be removed at a later date. 3. Open the connection for taking oil samples. To do so, push the bayonet connector toward the device, hold down and pull the sealing plug out. Re- lease the bayonet connector. Figure 14: Opening the connection for venting and taking oil samples 30 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 4. NOTICE! Make sure the oil extraction adapter belongs to this device. If the standard version and the offshore version are mixed up, the oil extrac- tion connection and the adapter can become damaged. Push the supplied oil extraction adapter into the opening until it audibly snaps into place. Figure 15: Connecting the oil extraction adapter 5. Open the oil extractor valve so that the air present can dissipate during further assembly. Figure 16: Opening the oil extraction adapter 6. Insert the measuring pipe into the closed ball valve. If the device is an offshore version, the steel clamping ring on the ball valve is to be greased prior to mounting the device (see chapter Ensuring offshore capability [►Section 6.4, Page 47]). Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 31  6 Mounting NOTICE Risk of damage The device measuring pipe can become tilted when it is inserted into the ball valve. ► Support the weight of the device by hand and push the pipe into the ball valve with even pressure up to the stop (tangible resistance). Figure 17: Inserting the device into the ball valve 7. Unscrew the fixing screw for the safety chain on the device until the open- ing for the chain is free. Insert the last link of the safety chain into the opening, hold it in this position, thread the fixing screw through the chain link and tighten with a torque of 7 Nm. Figure 18: Inserting and securing the safety chain 32 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting CAUTION Risk of burns Hot oil can push the device out of the ball valve and spray out. ► Ensure that the safety chain is correctly bolted in place and does not sag. 8. Position a collecting tray below the valve opening in the oil extraction adapter and open the ball valve by aligning the lever up to the stop paral- lel to the measuring pipe. Figure 19: Venting the device 9. Open any upstream valves and slides. Excess air will be purged from the system via the oil extraction adapter due to the pressure of the oil. 10. Vent the system until only oil flows out of the adapter. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 33  6 Mounting 11. Close the oil extraction adapter valve. Figure 20: Closing the oil extraction adapter 12. Remove the adapter from the device. To do so, push the bayonet con- nector toward the device, hold down and pull the adapter out. Release the bayonet connector. Figure 21: Removing the oil extraction adapter 34 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 13. Put the sealing plug back on the bayonet connector for venting and tak- ing oil samples and push it in until it snaps into place. Figure 22: Inserting the sealing plug Ensure that the connection is tightly sealed. 14. Push the device as far as possible into the system. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 35  6 Mounting WARNING Electric shock Risk of fatal injury due to electrical voltage. ► Maintain the necessary distance from the active part of the transformer (see Device dimensions with 285 mm measuring pipe length [►Section 14.1, Page 93] and Device dimensions with 507 mm measuring pipe length [►Section 14.2, Page 94]). Figure 23: Pushing the device into the system 15. Tighten the ball valve clamp connection using a wrench (wrench size 70) with a torque of 140 Nm. Figure 24: Securing the MSENSE 36 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 16. Reduce the length of the sagging safety chain by inserting the supplied chain connector through two links in the chain and closing it. Figure 25: Locking the safety chain Alternatively, a padlock can be used to secure the device against unautho- rized removal. Affixing the warning sign ► Attach the warning sign "Do not close!" to the shutter valve using the ca- ble tie included. Figure 26: Warning sign Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 37  6 Mounting 6.3 Electrical connection This chapter describes the correct electrical connection of the device. WARNING Electric shock Risk of fatal injury due to electrical voltage. ► De-energize the device and system peripherals and take measures to en- sure that they cannot be switched back on. Only connect the device to circuits with an external overcurrent protection device and an all-pole isolating device so that the equipment can be fully de- energized if required (for service, maintenance, etc.). Suitable equipment includes isolating devices in accordance with IEC 60947-1 and IEC 60947-3 (e.g. circuit breakers). Note the properties of the relevant circuits (voltage, maximum currents) when selecting the circuit breaker type. In addition, observe the following: ▪ It must be easy for the operator to access the isolating device ▪ The isolating device must be labeled for the device and circuits to be iso- lated ▪ The isolating device may not be a part of the power line ▪ The isolating device may not interrupt the main protective conductor Miniature circuit breaker We recommend the use of a miniature circuit breaker for protecting the sup- ply circuit: ▪ Rated current: 16 A ▪ Triggering characteristic: C Conductor cross-section For the supply circuit, use a conductor cross-section suitable for the overcur- rent protective device that you have selected and the selected cable length, but at least 1.5 mm2 (AWG 15). Wiring information Note this procedure for the wiring: ü To obtain a better overview when connecting cables, only use as many leads as necessary. ü Note the connection diagram [►Section 14.4, Page 97]. ü Only use specified cables for wiring. Note the cable recommendation [►Section 6.3.2, Page 39]. ü Wire the system periphery leads. 1. Strip insulation from leads and wires. 2. Crimp stranded wires with wire end sleeves. 38 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 6 Mounting 6.3.1 Electromagnetic compatibility The device has been developed in accordance with applicable EMC stan- dards. The following points must be observed in order to maintain the EMC standards. ▪ The system's overvoltage protection must be effective. ▪ The system's ground connection must comply with all technical regula- tions. ▪ For signal transmission, use shielded leads with individual conductors (outgoing conductor / return conductor) twisted in pairs. ▪ Connect full surface of shielding to device or to a nearby grounding bar. 6.3.2 Cable recommendation Please note the following Maschinenfabrik Reinhausen GmbH recommenda- tion when wiring the device. Excessive line capacitance can prevent the relay contacts from interrupting the contact current. In control circuits operated with alternating current, take into account the effect of the line capacitance of long control cables on the function of the relay contacts. The connection cables used must comply with a temperature resistance within the permissible ambient temperature range of -40...+60 °C. Cable Terminal** Cable type Max. length Power supply 1, 2, 3 Unshielded Analog outputs 4…12 Shielded 400 m ( Com- ponents. 3. Then enter the serial number under mySelfServices > Software up- dates. The Microsoft Windows 10 operating system or later is necessary for in- stalling the MESSKO® MSET parameterization software. To install the MESSKO® MSET parameterization software, proceed as fol- lows: 1. Start the MSETSetup.exe setup file. 2. Select the language in which you want to run the installation process. 3. Follow the instructions in the setup wizard. 4. Upon successful installation, the program can be started via Start > All programs > MESSKO > MSET > MSET program icon. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 51  7 Commissioning Detailed information on using the MESSKO® MSET parameterization soft- ware can be found in the corresponding operating instructions. 7.3 Commissioning in existing systems The manufacturer recommends a field calibration of the device parameters to ensure optimum operation, in particular with: ▪ Aged insulating oils ▪ Modified oils (e.g., the addition of additives) ▪ Oils that do not satisfy the standards ASTM D3486-091, IEC 60296 or IEC 60422. Here, an oil sample must be taken in accordance with the chapter "Oil ex- traction" [►Section 10.3, Page 69] and sent to Messko GmbH together with the "SAMPLE DATA SHEET – OIL ANALYSIS". You will then receive a rec- ommendation for action from Messko for readjustment via the MESSKO® MSET parameterization software. 7.4 Parameterization Parameterization of the device is only possible in combination with the MESSKO® MSET parameterization software, and is described in detail in the corresponding operating instructions. The set values for the gas carbon monoxide (CO) are only available for the device version MSENSE® DGA 3. The following settings can be configured for the parameters CO, H2 and H2O (as relative or absolute): ▪ Concentration warning limit ▪ Concentration alarm limit ▪ Gas formation rate warning limit ▪ Gas formation rate alarm limit ▪ Value for 4 mA signal ▪ Value for 20 mA signal ▪ Concentration action warning limit ▪ Concentration action alarm limit ▪ Gas formation rate action warning limit ▪ Gas formation rate action alarm limit Further settings ▪ H2O reference ▪ Measurement interval ▪ Time stamp 52 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 7 Commissioning ▪ UNIX time stamp ▪ Service code ▪ Action maintenance information ▪ Modbus baud rate ▪ Modbus address ▪ Service database ▪ Field calibration ▪ Default calibration 7.4.1 Settings for carbon monoxide (DGA 3 only), hydrogen and H2O concentrations in the oil The upper warning and alarm values for the carbon monoxide content (CO) (MSENSE® DGA 3 only), the hydrogen content (H2) and the H2O concen- tration can be specified. Along with the limit values specified in the standards, you have the option here of determining system-specific limits based on data collected or empiri- cal values. In the event of a limit value being exceeded (e. g. gas concentration in the oil or gas formation rate), a warning message can be issued via the relay con- tact. You can configure the respective settings using the MESSKO® MSET parameterization software in accordance with the corresponding operating instructions. Carbon monoxide CO limit values (MSENSE® DGA 3 only) Limit value Default*) Minimum Maximum Concentration too high warning 350 ppm 0 ppm 2,000 ppm Concentration too high alarm 570 ppm 0 ppm 200 ppm Gas formation rate too high warning 30 ppm/d 0 ppm/d 80 ppm/d Gas formation rate too high alarm 50 ppm/d 0 ppm/d 80 ppm/d 4 mA signal setting 25 ppm 25 ppm 1,999 ppm 20 mA signal setting 1,000 ppm 26 ppm 2,000 ppm Table 7: Carbon monoxide (CO) limit values *) Recommended values based on IEEE C57.104, Condition 1 Hydrogen (H2) limit values Limit value Default*) Minimum Maximum Concentration too high warning 500 ppm 0 ppm 2,000 ppm Concentration too high alarm 700 ppm 0 ppm 2,000 ppm Gas formation rate too high warning 30 ppm/d 0 ppm/d 80 ppm/d Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 53  7 Commissioning Limit value Default*) Minimum Maximum Gas formation rate too high alarm 50 ppm/d 0 ppm/d 80 ppm/d 4 mA signal setting 15 ppm 15 ppm 1,999 ppm 20 mA signal setting 1,000 ppm 16 ppm 2,000 ppm Table 8: Hydrogen (H2) limit values *) Recommended values based on IEEE C57.104, Condition 1 Moisture (H2O) limit values Limit value Default Minimum Maximum Concentration too high warning 30% RH 0% RH 100% RH Concentration too high alarm 45% RH 0% RH 100% RH Gas formation rate too high warning 10% RH/d 0% RH/d 100% RH/d Gas formation rate too high alarm 15% RH/d 0% RH/d 100% RH/d 4 mA signal setting 3% RH 3% RH 99% RH 20 mA signal setting 100% RH 1% RH 100% RH Table 9: Moisture (H2O) limit values 7.4.2 General settings Proceed in accordance with the description in the MESSKO® MSET param- eterization software operating instructions in order to adjust the following listed settings where necessary. Measurement interval setting The measurement interval is the time between 2 measurements (in hours). The shortest measurement interval is 3 hours. Measurement interval Standard value 6 hours Maximum value 24 hours Minimum value 3 hours H2O reference setting The analysis results of the MESSKO® oil laboratory or an equivalent labora- tory can be entered here in order to make a comparison between the water content (H2O in ppm) of the MSENSE® DGA 2/3 analysis and that of the laboratory. A field comparison for the gases H2 and CO is performed in the service area of the MSET software (see chapter Maintenance [►Section 10, Page 67]). 54 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 7 Commissioning Time stamp Make a note of the time stamp of the oil sample extraction for the laboratory. This is needed for the water content (H2O in ppm) calibration. The time stamp is updated with service code 1: sample extraction. Once the sample has been analyzed by a laboratory, the time stamp must be entered together with the analysis results for adjustment via the MESSKO® MSET parameterization software. To do so, use the service code 33. Service code Proceed in accordance with the description in the MESSKO® MSET param- eterization software operating instructions in order to enter and transmit a service code. Service Description code 0 No action. 1 Sample extraction: This service code informs the device that an oil sample has been taken for calibrating the absolute humidity H2O. Please be sure to note the time stamp on the sample information sheet! Important: Adjustment is not possible unless a time stamp is set! Note: The following conditions must exist for the device to permit an adjustment: Oil temperature at sample extraction: +10 to +90 °C Ambient temperature at sample extraction: -20 to +60 °C For adjustment of the gases H2 and CO: Lab result (reference value) >50 ppm For adjustment of the absolute humidity H2O (ppm): Lab result (refer- ence value) >5 ppm 4 Absolute humidity [ppm]: The humidity (H2O) determined in the oil is output as the absolute humidity with the unit [ppm]. Warnings and alarms are evaluated only for the absolute humidity. 5 Relative humidity [%RH] (default): The humidity (H2O) determined in the oil is displayed as the relative humidity with the unit [%RH]. Warnings and alarms are evaluated only for the relative humidity. 6 Trigger the fail-safe relay test alarm: The fail-safe alarm is triggered manually. The fail-safe relay switches within 60 seconds. The alarm and the fail-safe relay will be automatically switched off again after 5 minutes. 7 Deactivation of the fail-safe relay test alarm: A manually triggered fail-safe alarm will be canceled. The fail-safe relay switches off. 33 New calibration of the H2O value: First enter the analysis results for the H2O reference and the time stamp of the sample extraction in the "Settings" menu. Then enter service code 33 here. Determine the new reference value at the device through the final syn- chronization. Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 55  7 Commissioning Maintenance information A maintenance message that is configurable can be issued by the device via the available relay contacts (refer to the MESSKO® MSET parameterization software). It is possible to have a maintenance message issued 6 months in advance and when maintenance is due. 7.4.3 Modbus settings You can configure the following settings for the Modbus communication us- ing the MESSKO® MSET parameterization software. Modbus baud rate setting The transmission speed (baud rate) of the Modbus interface can be set as follows: 4800, 9600, 19200, 38400, 57600, 115200 Bd. Modbus baud rate Standard value 19200 Bd Maximum value 115200 BD Minimum value 4800 BD Take into consideration a minimum pause of 500 ms between two Modbus requests. Modbus address setting The following values are available for the Modbus address: Modbus address Standard value 1 Maximum value 247 Minimum value 1 Issuing the same network address twice will lead to malfunctions. Parity For data transmission, the parity is determined as follows: Parity Fixed specification Even Ensure that the same Modbus settings are made in your SCADA system. 56 MSENSE® DGA 2/3 4001150/12 EN Maschinenfabrik Reinhausen GmbH 2023 8 Operation 8 Operation Note the differences between the MSENSE® DGA 2 and MSENSE® DGA 3 device versions. Unless stated otherwise, the description refers to the MSENSE® DGA 3 device version. Device ver- Measured variables sion Hydrogen (H2) Carbon Moisture Oil tempera- monoxide (H2O) ture (CO) MSENSE® Yes No Yes Yes DGA 2 MSENSE® Yes Yes Yes Yes DGA 3 Maschinenfabrik Reinhausen GmbH 2023 4001150/12 EN MSENSE® DGA 2/3 57  8 Operation 8.1 Operating the device with display The display and 3 operating keys can be used to call up and display the set- tings of the device. Use the MESSKO® MSET software included in the de- vice's scope of delivery for the parameterization. There are 3 menu levels: Menu level 1 Menu level 2 Menu level 3 Operating display Setup selection: Parameter selection: Setup CO parameters or High warning or Setup H2 parameters or High alarm or Setup H2O parameters Rate high warning or Rate high alarm or 4 mA value or