Gas alarm:fixed toxic gas alarm
Intrinsically safety circuit design
ISO9001:2000 certificate
Gas alarm KB-501X is a new type toxic gas detector which used advanced electrochemical sensor and microcontroller, employed 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 toxic gas concentration in industrial environments.
KB-501X can translate the appointed toxic gas concentration signals into digital signals display. Three-wire system 4~20mA electric current signals output, with long-distance transmission and high anti-interference capacity. In addition, it has two-stage alarm function with acoustic and light signals.
Common applications is 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
• Imported electrochemical sensor;
• Intrinsically safety circuit design;
• High brightness LED digital display, clear and direct;
• Three-wire system 4~20mA standard signals output;
• Possible to connect to DCS system directly;
• Two-stage (low/high) alarm double switching value output;
• The probe has following advantages: high sensitivity, quick-response capacity, long performance life and short polarization time.
• Function of infrared remote control operation (remote-control is optional units).
Technical Specifications
Applicable Gas | Toxic gas (CO, H2S, etc) |
Detecting Range | Refer to the gas parameter list |
Alarm Threshold | Refer to the gas parameter list |
Display | High brightness LED display |
Working Current | ≤32mA |
Working Voltage | 16~30V DC |
Output Signals | Three-wire system 4~20mA standard signals output |
Power Consumption | <1 W |
Alarm Output | Two-way electrical relay tip output (30V 2A) |
Installation Means | Wall mounted |
Transmission Distance | ≤1000m |
Explosion-proof Type | Explosion insulating |
Explosion-proof Index | Ex d IIC T6 |
Protection Grade | IP65 |
Gas Parameter list
Gas | Product | Detecting Range | Resolution | Alarm Threshold (two-stage) Low / High |
NH3 | NH3 detector | (0~100)PPM | 1 PPM | 25 PPM / 50 PPM |
O2 | O2 detector | (0~30)%VOL | 0.1%VOL | 19.5%VOL / 23.5%VOL |
CO | CO detector | (0~1000) PPM | 1 PPM | 35 PPM / 200 PPM |
H2S | H2S detector | (0~100)PPM | 1 PPM | 10 PPM / 15 PPM |
H2 | H2 detector | (0~1000) PPM | 1 PPM | 35 PPM / 250 PPM |
Cl2 | Cl2 detector | (0~20) PPM | 0.1 PPM | 5 PPM / 10 PPM |
NO | NO detector | (0~1000) PPM | 1 PPM | 25 PPM / 50 PPM |
ClO2 | ClO2 detector | (0~10) PPM | 0.1 PPM | 0.5 PPM / 1.5 PPM |
HCN | HCN detector | (0~100) PPM | 1 PPM | 5 PPM / 10 PPM |
SO2 | SO2 detector | (0~500) PPM | 1 PPM | 10 PPM / 50 PPM |
C2H40 | C2H4O detector | (0~100) PPM | 1 PPM | 5 PPM / 10 PPM |
C3H3N | C3H3N detector | (0~100) PPM | 1 PPM | 5 PPM / 15 PPM |
