KQ Series single channel wall-mounted gas detector is can be used continuously in operation environment to detect the concentration of combustion gas, oxygen, and toxic gas.
The detector detects gas concentration in natural diffusion way, and uses imported electrochemical sensor or catalytic combustion sensor which has excellent sensibility and receptivity; big LCD displays the concentration of the leaked gas real time.
If the concentration exceeds the preset alarm level, detector will start the acoustic-optical alarm or exhaust system; international standard signal of 4-20mA can be directly connected into the factory DCS system, RS4845 digital signal is connected with factory’s principle computer; the device adopts embedded micro controlling technique. The performance of the whole detector is among the best ones in China.
l Adopts advanced embedded micro controller(16 digit ultra-low power consumption )
l 128*64 dot matrix ultra-large liquid-crystal display
l User can set the alarm level by themselves
l Displaying the time of fist alarm
l Real-time clock
l Replaceable modularized sensor
l Automatic calibration function, reduce the measuring error.
l Automatically save alarm data for 1000 records
l standby battery can work more than 100 hours in the condition that do not alarm (optional)
l standard signal(4-20mA) can be directly connected to factory's DCS system (optional)
l RS4845 digital signal is connected to factory’s principle computer (optional)
Detecting Gas | combustible gas, toxic gas, oxygen |
Measuring Range | see the chart |
Deviation | ≤± 3% F.S |
Respond Time | T90 < 30 s |
Display Mode | 128*64 dot matrix ultra-large liquid-crystal display |
Alarm Level | Low and high alarm. Users can set it. |
Alarm Output | relay output, volume AC 220V/2A. |
Signal Output | signal (4-20mA) can be directly connected to factory's DCS system (optional) |
RS4845 digital signal is connected with factory’s principle computer (optional) | |
Working Temperature | toxic gas: -20℃ ~ + 50 ℃ |
combustible gas: - 40 ℃ ~ + 70 ℃ | |
Working Humidity | < 90% R.H. no condensation |
Working Voltage | AC220V / 50HZ |
Spare Battery (optional) |
continuously work more than 100 hours in the condition that do not alarm. combustible gas detector: continuously work 8 hours |
Protection Class | IP65 |
Weight | about 1.2kg |
Product Model | Detected Gas | Measuring Range | Resolution | Respond Time (T90) | Low Alarm | High Alarm |
KQ-EX | combustible gas | 0-100%LEL | 1%LEL | ≤30s | 20%LEL | 50%LEL |
KQ-O2 | O2 | 0-30%vol | 0.1%vol | ≤15s | 18.5%vol | 23%vol |
KQ-CO | CO | 0-1000ppm | 1 ppm | ≤15s | 50ppm | 150ppm |
KQ-H2S | H2S | 0-100ppm | 1 ppm | ≤15s | 10ppm | 15ppm |
KQ-HCN | HCN | 0-20ppm | 0.1ppm | ≤30s | 5ppm | 10ppm |
KQ-CL2 | CL2 | 0-20ppm | 0.1 ppm | ≤30s | 2ppm | 5ppm |
KQ-O3 | O3 |
0-5ppm
0-100ppm |
0.1 ppm 1ppm |
≤25s |
0.1ppm 10ppm |
0.5ppm 20ppm |
KQ-NH3 | NH3 | 0-100ppm | 1 ppm | ≤30s | 25ppm | 50ppm |
KQ-H2 | H2 | 0-1000ppm | 1 ppm | ≤30s | 50ppm | 200ppm |
KQ-NO2 | NO2 | 0-20ppm | 0.1 ppm | ≤25s | 2ppm | 5ppm |
KQ-PH3 | PH3 | 0-20ppm | 0.1 ppm | ≤15s | 1ppm | 3ppm |
KQ-C3H3N | C3H3N | 0-100ppm | 1ppm | ≤30s | 5ppm | 15ppm |
KQ-NO | NO | 0-250ppm | 1ppm | ≤25s | 35ppm | 50ppm |
KQ-HCL | HCL | 0-20ppm | 1ppm | ≤25s | 3ppm | 5ppm |
KQ-SO2 | SO2 | 0-20ppm | 0.1ppm | ≤15s | 2ppm | 5ppm |
KQ-CO2 | CO2 |
0-5.00%vol 0-5000ppm |
0.01%vol 1ppm |
≤30s |
1.00%vol 2000ppm |
2.00%vol 3000ppm |
As for unlisted detected gas and measuring range, please contact with our company |
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