online toxic and combustible gas detector KB-501
Online Combustible Gas and toxic gas Detector KB-501
Gas detector KB-501 is a new type combustible gas detector which used high performance catalytic combustion gas sensor and electrochemical 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
l Cast aluminium housing;
l Advanced catalytic combustion sensor, electrochemical sensor;
l Intrinsically safety circuit design;
l Three-wire system 4~20mA standard signals output and long distance transmission;
l RS485 bus output (optional);
l Possible to connect to DCS system directly;
l The probe has following advantages: high sensitivity, quick-response capacity, long performance life and short polarization time.
Technical Specifications
| Applicable Gas | Combustible gas,toxic gas,oxygen (referring to gas parameter list) |
| Detecting Range | referring to gas parameter list |
| Alarm Threshold (two-stage) | referring to gas parameter list |
| Sensor Type | Catalytic combustion sensor,electrochemical 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; |
| Installation Means | Wall mounted |
| Transmission Distance | ≤1000m |
| Explosion-proof Type | Explosion insulating |
| Explosion-proof Index | Ex d IIC T6 |
| Protection Grade | IP65 |
Toxic Gas Parameter List
| Detectable Gas | Detecting Range | Alarm Threshold (Low / High) |
| NH3 (Ammonia) | 0-100 PPM | 25 PPM / 50 PPM |
| Cl2 (Chlorine) | 0-50 PPM | 0.5 PPM / 1.0 PPM |
| H2 (Hydrogen) | 0-1000 PPM | 50 PPM / 100 PPM |
| CH20 (Formaldehyde) | 0-100 PPM | Depending on request |
| CH30H (Methanol) | 0-100 PPM | Depending on request |
| H2S (Hydrogen Sulfide) | 0-100 PPM | 10 PPM / 20 PPM |
| HCl (Chlorine Hydride) | 0-30 PPM | 5 PPM / 10 PPM |
| HCN (Hydrocyanic Acid) | 0-50 PPM | 5 PPM / 10 PPM |
| PH3 (Phosphine) | 0-20 PPM | 0.3 PPM / 0.6 PPM |
| HF (Fluorine Hydride) | 0-10 PPM | 3 PPM / 6 PPM |
| NO (Nitric Oxide) | 0-250 PPM | Depending on request |
| CO (Carbon Monoxide) | 0-500 PPM | 35 PPM / 70 PPM |
| SO2 (Sulfur Dioxide) | 0-20 PPM | 2 PPM / 4 PPM |
| ClO2 (Chlorine Dioxide) | 0-50 PPM | 0.3 PPM / 0.5 PPM |
| NO2 (Nitrogen Dioxide) | 0-20 PPM | 1.0 PPM / 2.0 PPM |
| C2H4O (Ethylene Oxide) | 0-100 PPM | 1 PPM / 10 PPM |
| O3 (Ozone) | 0-20 PPM | Depending on request |
Combustible 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 | |
| NH3 | 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 |
Some gases are not listed, if you have other gas to detect, please contact us to confirm.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.