Ludlum Model 133 Series Gamma Detector (1).pdf

LUDLUM MODEL 133 SERIES GAMMA DETECTOR August 2020 Serial Number PR-373191 for Model 133-2 and Serial Number PR-372938 for the remainder of the 133 Series and Succeeding Serial Numbers Manual covers these model numbers:...

LUDLUM MODEL 133 SERIES GAMMA DETECTOR August 2020 Serial Number PR-373191 for Model 133-2 and Serial Number PR-372938 for the remainder of the 133 Series and Succeeding Serial Numbers Manual covers these model numbers: (133-2, 133-2-1, 133-3, 133-3-1, 133-4, 133-4-1, 133-6, 133-6-1, 133-7, 133-7-1)  LUDLUM MODEL 133 SERIES GAMMA DETECTOR August 2020 Serial Number PR-373191 for Model 133-2 and Serial Number PR-372938 for the remainder of the 133 Series and Succeeding Serial Numbers Manual covers these model numbers: (133-2, 133-2-1, 133-3, 133-3-1, 133-4, 133-4-1, 133-6, 133-6-1, 133-7, 133-7-1) LUDLUM MEASUREMENTS, INC. 501 OAK STREET, P.O. BOX 810 SWEETWATER, TEXAS 79556 325-235-5494, FAX: 325-235-4672 Model 133 Series Gamma Detector Table of Contents Introduction 1 Unpacking and Repacking 3 Specifications 4 Operating Procedures 5 Safety Considerations 6 Parts List, Drawings and Diagrams 7 Ludlum Measurements, Inc. August 2020 Model 133 Series Gamma Detector Introduction The Model 133 series of Geiger-Mueller (GM) gamma survey detectors can be used with any portable ratemeter, scaler instrument, or area monitor that provides the appropriate amount of voltage (see table below) with an input sensitivity of 30 +10 mV. Model # Voltage Energy Linearity Linearity needed Response w/o dead w/dead (60 keV- time time 3 MeV) correction correction 133-2 and 550 Vdc within 25% 0.1 mR/hr 0.1 mR/hr 133-2-1 to 200 to 1 R/hr mR/hr 133-3 and 550 Vdc Within 25% 0.1 mR/hr 0.1 mR/hr 133-3-1 to 1 R/hr to 5 R/hr 133-4 and 550 Vdc within 25% 1 mR/hr to 1 mR/hr to 133-4-1 2 R/hr 10 R/hr 133-6 and 550 Vdc within 25% 4 mR/hr to 4 mR/hr to 133-6-1 6 R/hr 40 R/hr 133-7 and 460 Vdc within 25% 25 mR/hr 25 mR/hr 133-7-1 to 30 R/hr to 100 R/hr Ludlum Measurements, Inc. Page 1 August 2020 Model 133 Series Gamma Detector In the Model 133 series, those Model numbers with the “-1” on the end are the waterproof versions of this detector. The waterproof detectors have the same characteristics as the non-waterproof models, other than they are waterproof, contain an O-ring, and do not have a “C” connector on the probe end (base). A 30-meter (100- foot) cable is hard-wired into the waterproof detector. The waterproof models also weigh slightly more and have a slightly larger diameter than the others. Model 133-4 Note: The detector does not contain any consumable materials. Note: If the detector is used in a manner not intended by the manufacturer, the detector may not function properly. Ludlum Measurements, Inc. Page 2 August 2020 Model 133 Series Gamma Detector Unpacking and Repacking Remove the calibration certificate or detector functional check certificate and place it in a secure location. Remove the detector(s) and accessories (if applicable) and ensure that all items listed on the packing list are in the carton. If multiple detectors are included, refer to the calibration certificates for serial number (SN) matches. The Model 133-4 serial number is located on the side of the detector. To return an instrument or detector for repair or calibration, provide sufficient packing material to prevent damage during shipment and affix appropriate warning labels to promote careful handling. Every returned instrument must be accompanied by an Instrument Return Form, which can be downloaded from the Ludlum website at www.ludlums.com. Find the form by clicking on the “Support” tab and selecting “Repair and Calibration” from the drop-down menu. Then choose the appropriate Repair and Calibration division where you will find a link to the form. Ludlum Measurements, Inc. Page 3 August 2020 Model 133 Series Gamma Detector Specifications Model # 133-2 & 133-3 & 133-4 & 133-6 & 133-7 & 133-2-1 133-3-1 133-4-1 133-6-1 133-7-1 Recommended 550 V 550 V 550 V 550 V 460 V Operating Voltage Energy within 25% within 25% within 25% within 25% within 25% Response (60 keV-3 MeV) Sensitivity 1000 450 100 18 4.2 cpm/mR/hr cpm/mR/hr cpm/mR/hr cpm/mR/hr cpm/mR/hr (137Cs Gamma) Background 12 cpm 6 cpm 1 cpm 1 cpm or less 1 cpm INPUT SENSITIVITY: 30 mV +10 mV DEAD TIME: typically 50 microseconds TUBE: 30 mg/cm2 stainless steel (Halogen quench) GM SIZE: Model 133-3, 133-4, 133-6, 133-7: 2.2 x 10.2 cm (0.88 x 4 in.) (Dia x L) Model 133-2, 133-2-1, 133-4-1, 133-6-1, 133-7-1: 2.5 x 10.2 cm (1 x 4 in.) (Dia x L) TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F) WEIGHT: 0.090 kg (0.20 lb) CONNECTOR: series “C,” unless a waterproof detector. Other connectors are available upon request. Ludlum Measurements, Inc. Page 4 August 2020 Model 133 Series Gamma Detector Operating Procedures CONNECTING TO AN INSTRUMENT Connect one end of the cable provided to the detector by firmly pushing the connector together while twisting clockwise ¼ turn until latched. Repeat the process in the same manner with the other end of the cable and the instrument. TESTING THE DETECTOR 1. Ensure that the instrument high voltage (HV) is at the proper setting for the detector (550 volts). 2. Connect the detector to the instrument and check for a proper background reading (see table on page 4). 3. Expose the detector to a check source and verify that the instrument indicates within 20% of the check source reading from the last calibration. Alternatively, expose the detector to a source of known value and verify that the detector detects greater than or equal to the efficiency listed in the specification section of this manual. 4. Instruments and detectors, which meet these criteria, are ready for use. Failure to meet these criteria may indicate a malfunction in the detector. Ludlum Measurements, Inc. Page 5 August 2020 Model 133 Series Gamma Detector Safety Considerations ENVIRONMENTAL CONDITIONS FOR NORMAL USE 1. Indoor or outdoor use (in a dry environment) 2. No maximum altitude 3. Temperature range of -20 to 50 °C (-4 to 122 °F); May be certified for operation from -40 to 65 °C (-40 to 150 °F). 4. Maximum relative humidity of less than 95% (non- condensing) 5. Pollution Degree 3 (Occurs when conductive pollution or dry nonconductive pollution becomes conductive due to condensation. This is typical of industrial or construction sites.) CLEANING INSTRUCTIONS AND PRECAUTIONS The detector may be cleaned externally with a damp cloth, using only water as the wetting agent. Do not immerse the instrument in any liquid. Observe the following precautions when cleaning: 1. Turn the instrument electronics OFF. 2. Allow the instrument to sit for one minute. 3. Disconnect the detector cable before cleaning the detector. Ludlum Measurements, Inc. Page 6 August 2020 Model 133 Series Gamma Detector Parts List, Drawings and Diagrams Model 133-2 Reference Description Part Number UNIT Completely Assembled Model 133-2 Gamma Detector 47-1717 1 EA GM TUBE (LND 71210) 01-5295 1 EA RES – 5.62 MEG ¼ W, 1% 10-7093 1 EA Model 133-2 BODY FOR SCREWS 7002-1201 1 EA Model 133-2 CONNECTOR CAP FOR SCREWS 7002-1202 3 EA SCREW-2-56 X 3/16 FH 17-8551 1 EA SCREW-2-56 X 1/8 BH 17-8727 1 EA BUSS WIRE #22 03-5363 1 EA LUG #2 922-902 18-9034 1 EA O RING-2-018 16-8307 1 IN. SHRINK-GPF-135 3/32 CLR 22-9540 1 EA CONNECTOR SERIES “C” 4478-011 Model 133-3 Reference Description Part Number UNIT Completely Assembled Model 133-3 Gamma Detector 47-1314 1 EA GM TUBE (LND 73122) 01-5311 1 EA RES – 3.3 MEG ¼ W, 5% 10-7044 1 EA Model 133 BODY FOR SCREWS 7002-1195 Ludlum Measurements, Inc. Page 7 August 2020 Model 133 Series Gamma Detector Reference Description Part Number 1 EA Model 133 CONNECTOR CAP FOR SCREWS 7002-1194 3 EA SCREW-2-56 X 3/16 FH 17-8551 1 EA SCREW-2-56 X 1/8 BH 17-8727 1 EA BUSS WIRE #22 03-5363 1 EA LUG #2 922-092 18-9034 1 EA O RING-2-016 BUNA 70 16-8364 1 IN. SHRINK-GPF-135 3/32 CLR 22-9540 1 IN. SHRINK-1/16 INCH BLACK 22-9501 1 EA CONNECTOR SERIES “C” 4478-011 1 EA Model 133 RESISTOR BOARD 6525-664 Model 133-4 UNIT Completely Assembled Model 133-4 Gamma Detector 47-1674 1 EA GM TUBE (LND 71412) 01-5306 1 EA RES – 3.3 MEG ¼ W, 5% 10-7044 1 EA Model 133 BODY FOR SCREWS 7002-1195 1 EA Model 133 CONNECTOR CAP FOR SCREWS 7002-1194 1 EA Model 133 CAP 7002-020-01 3 EA SCREW-2-56 X 3/16 FH 17-8551 1 EA SCREW-2-56 X 1/8 BH 17-8727 1 EA BUSS WIRE #22 03-5363 1 EA LUG #2 922-092 18-89034 1 EA O RING-2-016 BUNA 70 16-8364 1 IN SHRINK-1/16 INCH BLACK 22-9501 1 IN SHRINK-GPF-135 3/32 CLR 22-9540 1 EA CONNECTOR SERIES “C” 4478-011 1 EA Model 133 RESISTOR BOARD 6525-664 Ludlum Measurements, Inc. Page 8 August 2020 Model 133 Series Gamma Detector Model 133-6 Reference Description Part Number UNIT Completely Assembled Model 133-6 Gamma Detector 47-1718 1 EA GM TUBE (LND 71616) 01-5298 1 EA RES – 3.3 MEG ¼ W, 5% 10-7044 1 EA Model 133 BODY FOR SCREWS 7002-1195 1 EA Model 133 CONNECTOR CAP FOR SCREWS 7002-1194 3 EA SCREW-2-56 X 3/16 FH 17-8551 1 EA SCREW-2-56 X 1/8 BH 17-8727 1 EA BUSS WIRE #22 03-5363 1 EA LUG #2 922-092 18-9034 1 EA O RING-2-016 BUNA 70 16-8364 1 IN SHRINK-1/16 INCH BLACK 22-9501 1 IN SHRINK-GPF-135 3/32 CLR 22-9540 1 EA CONNECTOR SERIES “C” 4478-011 1 EA Model 133 RESISTOR BOARD 6525-664 Model 133-7 UNIT Completely Assembled Model 133-7 Gamma Detector 47-1216 1 EA GM TUBE (CSF 3G70) 01-5045 1 EA RES – 4.7 MEG ¼ W, 5% 10-7030 1 EA Model 133 BODY FOR SCREWS 7002-1195 Ludlum Measurements, Inc. Page 9 August 2020 Model 133 Series Gamma Detector Reference Description Part Number 1 EA Model 133 CONNECTOR CAP FOR SCREWS 7002-1194 3 EA SCREW-2-56 X 3/16 FH 17-8551 1 EA SCREW-2-56 X 1/8 BH 17-8727 1 EA BUSS WIRE #22 03-5363 1 EA LUG #2 922-092 18-9034 1 EA O RING-2-016 BUNA 70 16-8364 1 IN SHRINK-1/16 INCH BLACK 22-9501 1 IN SHRINK-GPF-135 3/32 CLR 22-9540 1 EA CONNECTOR SERIES “C” 4478-011 1 EA TUBE SHIELD 01-5055 1 EA Model 133 RESISTOR BOARD 6525-664 Additional parts for Model 133 series for waterproof detectors 1 EA Model 133-10 COVER 7002-582 1 EA Model 133-10 BASE 7002-583 Ludlum Measurements, Inc. Page 10 August 2020 Model 133 Series Gamma Detector Model 133 Series Probe Assembly Ludlum Measurements, Inc. Page 11 August 2020 Model 133 Series Gamma Detector Model 133-2 Probe Assembly Ludlum Measurements, Inc. Page 12 August 2020 Model 133 Series Gamma Detector Model 133-3 and 133-4 Ludlum Measurements, Inc. Page 13 August 2020