Monitoring Instrument OLCT20 for Fixed Ammonia
| probe | OLCT 20 | OLCT 20D | OLC 20 |
| type | Explosion-proof transmitter | Intrinsically safe transmitter | Intrinsically safe probe |
| Sensor type | catalytic combustion/Electrochemistry | Electrochemistry(OLCT 20D-catalytic combustion) | catalytic combustion |
| Detection of gases | Combustible gas, poison gas, oxygen | Toxic gas, oxygen | Combustible gas |
| Probe material | INOX 316L Stainless steel | ||
| Pre-calibration | Yes | Yes | nothing |
| Power Supply | 15 to 30 VDC(Catalysis) | 10 to 26 VDC | Depending on the probe |
| 15 to 30 VDC(Electrochemistry) | |||
| Maximum power consumption | 100 mA(Catalysis) | 25mA | Depending on the probe |
| 25 mA(Electrochemistry) | |||
| signal output | 4-20 mA | 4-20mA | bridge type |
| Load impedance | 250Ω (Catalysis) | 47Ω max | nothing |
| Depending on the power supply(Electrochemistry) | |||
| Line system | 3Line (catalysis) | 2Line | 3Line |
| 2Wire (electrochemistry) | |||
| Circuit impedance | 32Ω (Catalysis) (1km/1.5mm2) | 32Ω (1km/1.5mm2) | 32Ω (1km/1.5mm2) |
| 128Ω (Electrochemistry)
(4km/1.5mm2) | |||
| Connecting line | When leaving the factory, attach a diameter of ____________6mmCable | ||
| Electrical interface | M25or3/4"NPT (OLCT 20D- With mounting bracket) | M25or3/4"NPT (OLCT 20D- With mounting bracket) | M25or3/4"NPT (OLC 20D- With mounting bracket) |
| Protection Level | IP 66 | ||
| Authentication | EEx d IIC T6 II 2 GD | EEx ia IIC T4 II 1 GD | EEx d IIC T6 II 2 GD |
| INERIS 01 ATEX 0004X | |||
| Chinese Type Certification 2003-C110 China Flameproof Certification Ex d IIC T6 China's intrinsic safety explosion-proof certification Ex ia IIC T4 | |||
| CEM Identification | EN 50270 | ||
| weight | 800gram | ||
| size(mm) | L 130 x D 60 | L 130 x D 60 | L 130 x D 60 |
| working temperature | -25℃ ～ +60℃ | -25℃ ～ +60℃ | -25°C to +70°C -25 °C to +200°C HTIn version |