Oldham OLC 20, User Manual

Page 1: ...USER MANUAL OLC OLCT 20 Part Number NPO20GB Revision D 0 Gas Detector The Fixed Gas Detection Experts...

Page 2: ...ECIFIC USE C C L L A A U U S S E E S S C C O O N N C C E E R R N N I I N N G G P P R R O O P P E E R R T T Y Y Drawings plans specifications and information included in this document contain confident...

Page 3: ...Calibration 10 3 2 2Calibration specifications 12 3 3 Replacing a sensor on OLCT 20 12 3 4 Disposal of OLC T 20 12 4 Spare Parts 13 4 1 OLC 20 flameproof gas detector 13 4 2 OLCT 20 flameproof gas det...

Page 4: ...ions and Special Instructions for explosive gas detectors 21 8 2 2Technical Specifications and Special Instructions for Oxygen detectors 25 8 3 Markings 26 8 3 1Flameproof certified version OLC 20d an...

Page 5: ...T 20d or intrinsically safe certified OLCT 20i OLC 20s and OLCT 20s are available in NPT or M25 screw fittings and are designed to be attached on a junction box or any compatible generic transmitters...

Page 6: ...ure you read the paragraph Special Specifications for use in Potentially Explosive Atmospheres in Accordance with European Directive ATEX 94 9 EC See Appendix 1 for general installation instructions F...

Page 7: ...e in Potentially Explosive Atmospheres in Accordance with European Directive ATEX 94 9 EC 2 1 3 Wire version OLC 20d OLCT 20d Figure 2 A B C D E OLDHAM controller OLC or OLCT 20 Grounding Power supply...

Page 8: ...8 Hazardous area Safe area C B A 2 3 2 wire Intrinsic Safety versions OLCT 20i Figure 4 A B C OLDHAM controller OLC 20 or OLCT 20 ZENER Barrier...

Page 9: ...ield conditions exposure to gas sensor technology and environmental conditions The frequency of calibration is best determined by company policy or local regulatory agencies If an instrument fails to...

Page 10: ...see the following page for more information 3 2 Transmitters OLCT 20 OLCT 20 gas transmitters are equipped with a pre calibrated sensor and do not require any adjustment on installation However as gas...

Page 11: ...on alarm relays inhibited Set the measuring channel back to the normal position and make sure that it is working properly Rotate the sensor module then extract it 1 2 Once calibrated put the sensor ba...

Page 12: ...0 Concerning the conservation of the protection and the improvement of the quality of the environment as well as for the protection of the health of the persons and the careful and rational use of nat...

Page 13: ...tector Flameproof replacement sensors Part number OLCT 20 0 100 LEL VQ1 OLCT 20 0 100 LEL AP OLCT 20 0 100 vol catharometer OLCT 20 CO 0 100 ppm OLCT 20 CO 0 300 ppm OLCT 20 CO 0 1000 ppm OLCT 20 H2S...

Page 14: ...2000 ppm OLCT 20 NH3 0 100 ppm OLCT 20 NH3 0 1000 ppm OLCT 20 HCl 0 30 ppm OLCT 20 HCl 0 100 ppm OLCT 20 HCN 0 30 ppm OLCT 20 HCN 0 100 ppm OLCT 20 Cl2 0 10 ppm OLCT 20 O3 0 1 ppm OLCT 20 COCl2 0 1 pp...

Page 15: ...6147869 CALIBRATION CUP 6331141 BY PASS ADAPTOR for combustible gases CO H2S O2 6327910 PLASH GUARD 6329004 PROTECTIVE FILTER PTFE 6335975 ACTIVE CARBON FILTER 6335976 REMOTE CALIBRATION CUP for combu...

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Page 17: ...V Power consumption 3 wire version 100 mA 2 wire version 25 mA Load resistance maximum resistance 250 ohms Line length shielded cable 3 wire version 1 km as 3x 1 5 mm2 32 ohms in loop mode 2 wire ver...

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Page 19: ...ly protected The transmitter casing will be earthed using the external or internal terminal which should be corrosion protected Users should clean detectors regularly in order to prevent any external...

Page 20: ...ith the following OLDHAM controllers SV 4B MX 15 MX 32 MX 42A MX 43 MX 48 and MX 52 OLCT 20 explosive gas detectors comply with European standards EN 50054 and EN 50057 for Methane calibration gas Pro...

Page 21: ...the transmitter is correctly interpreted Equally the device must supply a suitable power supply voltage allowing for cable voltage losses Please note Detectors can generate ambiguous measurements at...

Page 22: ...0 05 CH4 Long term drift in normal operating conditions Zero point Sensitivity Methane Propane Butane 5 methane LEL per year Typical drift values 20 of the value measured per year 10 of the value mea...

Page 23: ...50 4 3 0 1 65 1 35 0 90 0 80 Acetone C3H6O 2 15 13 00 18 2 1 1 65 1 35 0 90 0 80 Acetylene C2H2 1 50 100 18 0 9 2 35 1 90 1 25 1 15 Acrylic acid C3H4O2 2 40 8 00 54 2 5 5 00 4 00 2 65 2 40 Butyl acryl...

Page 24: ...de C2H4O 2 60 100 20 1 5 2 10 1 70 1 15 1 00 Propylene oxide C3H6O 1 90 37 00 70 2 0 2 35 1 90 1 25 1 15 Pentane C5H12 1 40 8 00 49 2 5 1 00 Propane C3H8 2 00 9 5 104 1 6 1 55 1 25 0 85 0 75 Propylene...

Page 25: ...sses 8 2 2 2 Metrological data Maximum concentration 30 O2 Type and number CT5020 CELL Principle 2 electrode electrochemical Measurement of oxygen concentration by volume Estimated service life 30 mon...

Page 26: ...certified version OLC 20d and OLCT 20 d OLDHAM F 62027 Arras 0080 OLC 20d or OLCT 20d II 2GD Ex d IIC T6 Gb Ex tb IIIC T85 C Db IP66 Tamb 20 C to 70 C INERIS 01ATEX0004X Read instruction manual WARNI...

Page 27: ...so be positioned so as to allow access to the measuring sensor so that it can be replaced Detectors must be positioned so as to optimize the detection of accumulations of gas emitted in the air Factor...

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Page 29: ...29 10 EU Declaration of Conformity...

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Page 32: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...