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Gas Detector KB-501A
Product model：KB-501A
The KB-501A composite gas detector is a new type of multi-gas online gas detection instrument produced by our company.
Gas sensor main detection principles are: electrochemical, infrared, catalytic combustion, PID light ion and other principles of gas sensors, high-precision temperature and humidity sensors.
Combined with excellent SMD technology, it has good repeatability, long service life and easy operation.
Adapt to petroleum, chemical, tunnel, gas transmission and distribution, urban pipe corridor, biochemical medicine and other industries.* high sensitivity, long life, low drift, etc., stable operation;
* Self-test function of sensor failure, replace sensor in time, safer;
* Powerful sound and light alarm function;
* High-definition color display, intuitive and clear;
* 3 LEDs indicate fault, primary alarm, secondary alarm and relay output function;
* Bus RS485 (RTU), network transmission (optional), three (four) wire system 4 ~ 20mA (optional), switch quantity: 3
* Infrared remote control adjustment method, the detector can be adjusted without opening the cover, safe and convenient;
* Use explosion-proof design, suitable for dangerous conditions 1 and 2 areas;Gas Parameter list
Applicable gas
Detecting Range
Alarm Threshold (Two-stage)
Low / High
NH3 (Ammonia)
0-100 PPM
25 PPM / 50 PPM
Cl2 (Chlorine)
0-50 PPM
0.5 PPM / 1.0 PPM
CH4O(methyl alcohol)
0-100PPM
Depending on customer’s request
H2 (Hydrogen)
0-1000 PPM
50 PPM / 100 PPM
CH20 (Formaldehyde)
0-10 PPM
Depending on customer’s request
H2S (Hydrogen Sulfide)
0-100 PPM
10 PPM / 20 PPM
HCl (Chlorine Hydride)
0-30 PPM
5 PPM / 10 PPM
O3(ozone)
0-20ppm
3.0 PPM / 5.0 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 / 10 PPM
AsH3 (Arsine)
0-1 PPM
Depending on customer’s request
CO (Carbon Monoxide)
0-500 PPM & 2000 PPM
35 PPM / 70 PPM
S02 (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
CO2(infrared sensor)
0-20%VOL or 0-5000ppm
1.0%VOL/3.0%VOL 800ppm/1500ppm
C2H4O (Ethylene Oxide)
0-100 PPM
1 PPM / 10 PPM
NO (Nitrogen Monoxide)
0-250 PPM
25 PPM / 50 PPM
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
CH4O
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
Remark: The alarm threshold value can be adjusted based on customer’s request.
Some gas types are not listed. If any request, please contact the manufacturer.
Detection principle:
electrochemical, infrared, catalytic combustion, PID, photoion, and other detection gases: combustible gases (alkanes, alcohols, vinyls, ketones, gasoline, etc.);
Sampling method:
natural diffusion;
Test range:
combustible gas (0 ~ 100%) LEL;Toxic gases (Depending on the gas, the measurement range is different)
Resolution:
combustible gas 1% LEL; toxic gas 1ppm
Measurement error:
±5% of full scale; ±3% of alarm point
Display mode:
high-definition color screen;
Status indication:
3 LEDs indicate fault, primary alarm, secondary alarm;
Commissioning method:
infrared remote control or button;
Alarm mode:
LED indication alarm, relay output, sound and light alarm (optional)
Response time:
T90 ≤ 30 seconds;
Recovery time:
≤ 30 seconds;
Ambient temperature: -
40 °C ~ 70 °C;
Relative humidity:
≤95%RH; (non-condensing)
Explosion-proof mode:
flameproof type;
Explosion-proof level:
ExdIICT6;
Power source:
DC24V±25%;
Output signal:
bus RS485 (RTU), network transmission (optional), three (four) wire system 4 ~ 20mA (optional),
Switch quantity:
3
Power consumption:
≤3W;
Install ridges:
G1/2;
Maximum distance :
≤1000m;
Total weight:
≤2000g;
Pressure limit:
86kPa~106kPa;
Executive Standard:
GB15322
Implementation of the standard:
GB3836.1-2000 《爆炸性气体环境用电气设备 第1部分： 通用要求》
GB3836.2-2000 《爆炸性气体环境用电气设备 第2部分： 隔爆型“d”》
GB16808-1997 《可燃气体报警控制器技术要求和试验方法》
GB4208-93 《外壳防护等级（IP代码）》
GB/T13384-92《机电产品包装应用技术条件》
