Description
• Toxic gas monitor (OLCT 10)
• Combustible gas monitor (OLC 10)
• Designed for boiler rooms and car parks
• ATEX Approval for use in hazardous areas
• IP66
Detectors: | OLC 10/OLC 10 TWIN | OLCT 10 |
Type: | Catalytic bead sensor (pellistor measuring principle) | |
Measuring Range: | 0-100 % LEL methane, butane, propane, or hydrogen | |
Material: | ABS | |
Signal Output: | Wheatstone Bridge | Normal operation 4-20mA (Fault < 0.5mA or > 23.2mA) |
Non-ambiguity Reading: | Managed by control unit | Set to 23.2mA if value > 100% LEL according to European standard EN 61779-4
Disable on request when managed by a suitable controller |
Settings: | On control unit | Without opening the enclosure by means of 2 potentiometers for zeroing and spanning
2 mA signal output in maintenance mode One dedicated connector to get a gas measurement |
Power Supply: | by control unit only | 15 to 30vDC (nominal 24vDC)1: I out (signal) 2: 0V 3: 24vDC |
Maximum Power Consumption: | See user manual of the control unit | 100mA max |
Output Signal: | 4-20 mA | 4-20 mA |
Default Signal: | < 1 mA | < 1 mA |
Wiring Connection:
|
OLC10: 3-wire, shielded, core size 1,5 mm2, max. cable length 300 m. 1 cable-gland M16 (outer 4 to 8 mm)OLC 10 TWIN: Shielded, core size 1,5 mm2, 3-wire to control unit, 4-wire between both sensors, max. cable length 300 m. 2 cable-glands M16 (outer 4 to 8 mm) |
3-wire, shielded, core size 1,5 mm2,
Max. cable length 1 km if connected with control unit (32 V max in loop) 1 cable gland M16 (outer 4 to 8 mm) |
Ingress Protection: | IP66 | |
Approvals: | Electromagnetic compatibility according to EN 50270 | |
ATEX II 3 G / EEx nA IIC T6 | ATEX II 3 G / EEx nA IIC T4 | |
Response Time: | T50 < 10s, T90 < 20s | |
Accuracy: | ±3% LEL | |
Dimensions: | 118 x 126 x 58mm (4.65″ x 4.96″ x 2.28″) | |
Operating Temperature: | -10°C to 45°C (-14°F to 113°F) | |
Operating Humidity Range: | 0%RH to 95%RH | |
Operating Pressure: | 80 to 120kPa | |
Expected Lifetime: | > 4 years |