Online Combustible Gas Detector KB-501
Gas detector KB-501 is a new type combustible gas detector which used high performance catalytic combustion gas sensor and sophisticated SMD technology. It has following advantages: good repeatability,high resistance to humidity-temperature jamming, long performance life and simple operation. It is applied to inspection for gas concentration in industrial environments.
KB-501 can translate gas concentration signals into electric current signals or digital signals for outputting and transmitting. It adopted three-wire (4~20mA signals output) and four-wire (RS485 bus output) system, remotely examine the detection result through the monitor or controller. Common applications is gas safety inspection and alert for industrial scene, such as petroleum refinery, chemical plants, etc.
Features
- Cast aluminium housing;
- Advanced catalytic combustion sensor;
- Intrinsically safety circuit design;
- Three-wire system 4~20mA standard signals output and long distance transmission;
- RS485 bus output (optional);
- Possible to connect to DCS system directly;
- The probe has following advantages: high sensitivity, quick-response capacity, long performance life and short polarization time.
Technical Specifications
| Applicable Gas | Combustible gas (referring to gas parameter list) |
| Detecting Range | 0~100%LEL |
| Alarm Threshold (two-stage) | Low: 25%LEL / High: 50%LEL |
| Sensor Type | Catalytic combustion sensor |
| Sensor Life | 2~3 years |
| Working Current | ≤170mA |
| Working Voltage | 24V DC |
| Power Consumption | ＜2.2W |
| Accuracy | ≤±5%F.S. |
| Output Signal |
three-wire system 4~20mA standard signals output; RS485 bus output (optional); Two-way relay output |
| Installation Means | Wall mounted |
| Transmission Distance | ≤1000m |
| Explosion-proof Type | Explosion insulating |
| Explosion-proof Index | Ex d IIC T6 |
| Protection Grade | IP65 |
| Product size | 158*125*65mm |
Gas Parameter List
| Gas | Detecting Range | Alarm Threshold | Sensor Type |
| CH4 | 0-100%LEL | 25%LEL / 50%LEL | Catalytic combustion sensor |
| C3H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| H2 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H6 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H4O | 0-100%LEL | 25%LEL / 50%LEL | |
| CH3CH3 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H4 | 0-100%LEL | 25%LEL / 50%LEL | |
| C4H10 | 0-100%LEL | 25%LEL / 50%LEL | |
| C4H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| C7H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H7N | 0-100%LEL | 25%LEL / 50%LEL | |
| C8H10 | 0-100%LEL | 25%LEL / 50%LEL | |
| C9H12 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H6O | 0-100%LEL | 25%LEL / 50%LEL | |
| C3H4O | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H3Cl | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H7N | 0-100%LEL | 25%LEL / 50%LEL | |
| C3H9N | 0-100%LEL | 25%LEL / 50%LEL | |
| CH3Br | 0-100%LEL | 25%LEL / 50%LEL |
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