Gas alarm: online flammable gas detector & alarm
Intrinsically safety circuit design
ISO9001:2000 certificate
Gas alarm KB-501SG is a new type combustible gas detector which used high performance catalytic combustion gas sensor and microcontroller, employed 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-501SG can translate the appointed gas concentration signals into digital signals for display. Three-wire system 4~20mA electric current signals output, with long transmission distance and good anti-inference capacity. In addition, it has two-stage alarm function with acoustic and light signals.
KB501SG is applied to gas safety inspection and alert for industrial scene, such as petroleum refinery, chemical plants, LPG stations, boiler rooms, gas stations, paint spray booths, etc.
Features
• Advanced catalytic combustion sensor;
• Intrinsically safety circuit design;
• High brightness LED digital display, clear and direct;
• Timely alert with acoustic and light alarm signals;
• Three-wire system 4~20mA standard signals output and long-distance transmission;
• Possible to connect to DCS system directly;
• The probe has following advantages: high sensitivity, quick-response capacity, long performance life and short polarization time;
• With a manual controller (optional units) used for adjustment of parameter;
• Function of infrared remote control operation (remote-control is optional units).
Technical Specifications
Applicable Gas | Flammable gas |
Detecting Range | 0~100%LEL |
Alarm Threshold (two-stage) | Low: 25%LEL / High: 50%LEL |
Working Current | ≤170mA |
Working Voltage | 16~30V DC |
Power Consumption | <3W |
Display | LED digital display |
Output Signal | Three-wire system 4~20mA standard signal output |
Alarm Signal | Acoustic and light signals alert |
Installation Means | Wall mounted |
Transmission Distance | ≤1000m |
Explosion-proof Type | Explosion insulating |
Explosion-proof Index | Ex d IIC T6 |
Protection Grade | IP65 |
Applicable Gas
CH4 | C3H8 | C6H14 | petrol | C2H6O |
CH4O | C3H6 | C7H16 | diesel | CH2Cl2 |
C7H8 | C3H6O | C8H18 | C10-H16 | C4H8O2 |
C2H6 | C4H10 | C6H6 | C4H10 | C6H12O2 |
C2H4 | C4H8O | C8H10 | C3H8O | C2H4O |
C2H2 | C4H6 | C8H12 | C2H5Cl | C3H6O |
C2H6O | C5H12 | H2 | CH4 | LPG |