• Gas Detector KB-501SG Product model:KB-501SG

        Gas detector KB-501SG is a new type toxic gas detector which used advanced electrochemical sensor,catalytic combustion sensor,infrared sensor and microcontroller, employed sophisticated SMD technology. It has following advantages: good repeatabilityhigh 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 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

    1、Cast aluminum housing;

    2、Imported sensor;

    3、Intrinsically safety circuit design;

    4、High brightness LED digital display, clear and direct;

    5、Timely alert with acoustic and light alarm signals;

    6、Three-wire system 4~20mA standard signals output and four -wire RS485

    7、Possible to connect to DCS system directly;

    8、The probe has following advantages: high sensitivity, quick-response capacity, long performance life and short polarization time.

    9、With a manual controller (optional units) used for adjustment of parameter;

    10、Function of infrared remote control operation (remote-control is optional units).

    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 customers request

    H2 (Hydrogen)

    0-1000 PPM

    50 PPM / 100 PPM

    CH20 (Formaldehyde)

    0-10 PPM

    Depending on customers 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 customers 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. 

    Technical Specifications

    Applicable Gas

    Refer to the gas parameter list

    Detecting Range

    Refer to the gas parameter list

    Alarm Threshold

    Refer to the gas parameter list

    Working Environment

    Temperature: -20~55

    Humidity: 95%RH (non-condensing)

    Working Current

    50mA

    Working Voltage

    16~30V DC

    Power Consumption

    1 W

    Display

    High brightness LED digital display

    Output Signals 

    Three-wire system 4~20mA standard signals output and four -wire RS485

    Alarm Signal

    Acoustic and visual signals alert

    Installation Means

    Wall mounted

    Transmission Distance

    1000m

    Explosion-proof Type

    Explosion insulating

    Explosion-proof Index

    Ex d IIC T6

    Protection Grade

    IP65

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