Questions and Answers
What is the recommended diameter for the hole to be machined in the spacer?
Why is it suggested to create the exit slot at an angle?
When is wrapping the spacer in crepe paper considered mandatory?
What procedure should be avoided with the non-disc version of the probe?
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How should a spacer thicker than 3 mm be constructed?
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What is the current limitation for DC situations when using the MSENSE FO ECU-S at 240 VDC?
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Which of the following communication protocols are supported by the MSENSE FO ECU-S Ethernet option?
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What feature is added to the MSENSE FO ECU-S when the SFP module is included?
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What is recommended for charging the internal battery of the MSENSE FO Test Unit?
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Which statement about the Ethernet connections on the MSENSE FO ECU-S is true?
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What should you do if the power reading from a probe is less than 100%?
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Where can Maschinenfabrik Reinhausen probes be installed in a transformer?
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What is a common issue associated with feedthrough installation?
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What is the recommended practice for applying sealant to feedthroughs?
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What should be done to tighten a feedthrough with NPT threads?
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What is the maximum operating temperature for the GaAs probes?
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What type of connector is standard for the GaAs probes?
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What is the battery capacity of the MSENSE FO TEST UNIT?
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What is the weight of the MSENSE FO TEST UNIT?
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How long can the internal battery last on a full charge during continuous use?
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What is the primary recommendation when removing the microSD card from the MSENSE FO ECU-S enclosure?
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Which of the following specifications for wiring terminal blocks is correct?
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What type of microSD memory cards is recommended for use from Maschinenfabrik Reinhausen?
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What is the recommended pin length for crimped wire ferrules when using stranded wires?
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What does the MSET-FO software allow regarding data files?
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Permanent damage may occur if the power supply connections are set up incorrectly.
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Users can service the MSENSE-FO instruments without voiding the warranty.
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MSENSE-FO thermometers support both 62.5 µ and 200 µ probes.
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The standard probe size for MSENSE-FO instruments is 62.5 µ unless otherwise stated.
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Fiber optic probes have a minimum bending radius of approximately 5 cm.
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The MSENSE FO ECU-I includes an RS-485 serial port for communication.
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The maximum operating temperature for the MSENSE FO Test Unit is 120 degrees Celsius.
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Extension cable testing is a part of the installation best practices for the MSENSE FO ECU-S.
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The MSENSE FO instrument cannot be used for logging data to a PC file.
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The MSENSE FO ECU-S does not have any analog outputs available.
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Current and voltage should be limited to 10 A and 240 VAC.
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The recommended insulation stripping length is 10 mm.
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Crimped wire ferrules should be used when working with stranded wires.
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The MSENSE FO ECU-I relay is programmable by the user.
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The RS-485 serial port on the MSENSE FO instruments can be configured in both half-duplex and full-duplex modes.
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The recommended connector for the instrument is Phoenix part # 1827622.
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It is not necessary to use termination resistors when connecting the Modbus communication cable.
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ModScan is a tool suggested for testing RS-485 serial Modbus connections, but there are other alternatives available.
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A COM port number can be found by using the Device Manager on a PC.
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ModScan can be used free of charge for an unlimited period.
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The MSENSE FO ECU-I has a calibrated temperature range of -45 to 200 C.
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The response time for the MSENSE FO ECU-I is fixed and does not depend on probe configuration.
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The number of channels for the MSENSE FO ECU-I can be either 8 or 12.
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The MSENSE FO ECU-I can operate within a temperature range of -80 to 200 C.
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The weight of the MSENSE FO ECU-I is 1 kg.
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Study Notes
GaAs Probes
- Probes available in 62.5 µ and 200 µ diameter, selected at order.
- Must match competitive GaAs probes with the same fiber diameter compatibility.
Technical Specifications
- Temperature measurement in Celsius; Fahrenheit option available in MSET-FO software.
- Data logging capability using user-supplied micro-SD card; fastest logging interval of 1 second.
- Operating temperature range: -30 °C to 55 °C, non-condensing.
- Storage temperature range: -30 °C to 65 °C.
- Local display for temperature and user information.
- Power supply: Micro-USB connector, 5 VDC, ~150 mA (up to 500 mA during battery charge).
Battery and Maintenance
- Internal rechargeable battery with 2,500 mA-h capacity; approximate 10 hours of continuous use once fully charged.
- Firmware upgrades accessible via USB port.
Physical Attributes
- Dimensions: 182 mm (L) x 125 mm (W) x 69 mm (H).
- Weight: 0.6 kg.
Spacer Installation Recommendations
- Drill a 9 mm diameter hole centered per design, avoid it for non-disc probes.
- Create a 3 mm wide angled exit slot to reduce bending stresses on the fiber.
- Optionally wrap spacer in crepe paper to prevent oil near the sensor.
Non-Disc Probe Care
- Avoid pressure on the probe tip and ensure cable is secure in the slot to prevent dislodgment.
- Teflon sheathing softens at higher temperatures requiring a tight fit.
Feedthrough Installation Best Practices
- For leak prevention, use thread sealant (Loctite 567 or 3M Rite-Lok).
- Apply a small sealant quantity before securing feedthrough to tank wall.
- Hand-tighten and add approximately 2 additional turns with a 14 mm socket wrench.
Data Management
- Transfer data to PC using MSET-FO software; process may be slow for large files.
- Recommended to power down unit before removing microSD card for logging safety.
Wiring Guidelines
- Current and voltage limits: 5 A, 240 VAC.
- Wire gauge: 12-30 AWG (0.2 to 2.5 mm).
- Screw torque specifications between 0.5 to 0.6 Nm.
- Strip insulation length: 7 mm; use crimped wire ferrules to prevent strands from shorting.
MSENSE FO ECU-S Ethernet Ports
- Offers RJ45 connector for Ethernet communication.
- Supports IEC 61850, Modbus over Ethernet, and IEC 60870-5-104 protocols.
- Ethernet fiber communication is enhanced with an SFP module.
MSENSE FO Test Unit
- Factory calibrated and requires brief charging for battery.
- Main functionalities include temperature monitoring and data logging.
Installation Information
- Requires careful installation, considering mechanical alignment and electrical connections for both MSENSE FO Test Unit and MSENSE FO ECU-I.
Installation Best Practices
- Bolted Wall Plates: Follow specific guidelines for installation without O-ring.
- Welded Wall Plates: Adhere to best practices for proper installation.
- Extension Cable: Ensure correct installation and testing protocols are followed.
- Interface Box: Utilize best practices for installation to ensure functionality.
MSENSE FO Monitor Installation
- Types of Units: Includes MSENSE FO ECU-S, ECU-I, and Test Unit, each with distinct installation requirements.
- Mechanical & Electrical Installation: Detailed steps necessary for proper setup of MSENSE FO ECU-S and ECU-I.
- Analog Outputs & Ethernet Ports: Configuration options available; ensure understanding of functionality.
RS-485 Serial Connection
- Connection Testing: Essential procedures for testing RS-485 serial connections, including Modbus and other protocols.
- Port Configuration: Manage baud rate and communication settings with the MSET-FO software.
MSENSE FO Thermometer Specifications
- Resolution: 0.1 °C; accuracy of ± 1 °C.
- Temperature Ranges: Calibrated range -45 °C to 200 °C; usable range -80 °C to 200 °C.
- Channels: Available configurations include 8 or 12 channels depending on fiber size (200 µ or 62.5 µ).
- Response Time & Sampling Rate: Typically 0.2 to 0.5 seconds per channel; sampling rate at ~5 Hz.
Power and Operating Requirements
- Power Supply: Only use approved power supply modules (24/48 VDC ±10%); connection to AC 100-240 is prohibited.
- Operating Conditions: Maintains functionality in temperatures from -40 °C to 72 °C, non-condensing.
Memory and Data Logging
- MicroSD Card: Recommended to use ruggedized cards from Maschinenfabrik Reinhausen for reliable data logging.
- Data Logging: Capacity for user-removable microSD cards ensures flexibility in data management.
Maintenance and Troubleshooting
- Instruments Maintenance: Guidelines specific to troubleshooting MSENSE FO ECU-S, Test Unit, and ECU-I instruments.
- System Fault Relay: Hard-wired Form-C relay activates under normal conditions; key for system status monitoring.
Fiber Optic Probes
- Probe Types: Instruments compatible with 62.5 µ and 200 µ fiber probes; specific configuration required for each type.
- Handling: Caution required to avoid damage; probes and extension cables are sensitive to bending and breakage.
Software Integration
- MSET-FO Software: Crucial for installation, operation, and configuration of devices; includes options for temperature acquisition and device management.
- Logs and Configuration: Software allows detailed access to logged data and configuration settings via setup and communication tabs.
Communication Recommendations
- Insulated Interface: Strongly advised for connecting devices to avoid issues, with specifications for termination resistors during Modbus setup.
- Testing Tools: ModScan recommended for testing Modbus connections; other software options available for similar purposes.
Important Cautions
- User-Serviceable Parts: None available; tampering voids warranty and risks calibration.
- Grounding: Ensure proper grounding for all systems to maintain safety and functionality.
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Description
This quiz covers the essential features of GaAs probes, including specifications for different probe sizes, compatibility with fiber diameters, and data logging capabilities. Gain insights into the selection process and the importance of temperature measurement for effective usage.
