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Fixed online hydrogen sulfide analyzer used in sewers,with 4-20mA signal output

Categories Fixed gas detector/monitor
Brand Name: chicheng
Model Number: QB2000N
Certification: CNEX
Place of Origin: china
MOQ: 1
Price: usd188/pc
Payment Terms: t/t
Supply Ability: 10000pcs/month
Delivery Time: 6 working days
Packaging Details: in carton
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    Fixed online hydrogen sulfide analyzer used in sewers,with 4-20mA signal output


    Sewers is a hazardous place full of toxic gas, especially Hydrogen sulfide,which is harmful to human. Excessive absorption causes die.


    Our QB2000 series hydrogen sulfide analyzer features explosion proof,IP66, anticorrosive, which is suitable for such place like sewers.


    Hydrogen sulfide analyzer can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave.

    • QB2000 is afixed gas detecting transmitter.Whichprovides4-20 mA outputand RS485ModBus RTU outputproportional to the gas concentrationwith electrochemical sensor, which is flexible, durable, swift and etc. and can be directly connected with DCS systems.It has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc to test multi-gas, such as flammable gas and toxic gas O2,H2S,CO,HCN,NO2,SO2,NH3,HCL,CL2,H2.

    Characteristics:

    ◆Sensor types:electrochemical sensor

    ◆4-20mA analog output(3+ channel) for direct communication to DCS system and RS485 ModBusoutput

    ◆Sensormodule design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.

    ◆LED Display(LCD optional)

    ◆Password verification for repeat operation, avoid fault operations.

    ◆-40~+70℃ following compensationfor accurate detecting.

    ◆Second grade visual alarms on-site and Relay(connected with audible/visual alarms or drive exhaust device).

    ◆User-selectable alarm setpoint(s).

    Technical parameters:


    Environment Parameter

    Environment temperature:-20℃~+60℃

    Relative humidity ≤90%R.H.

    Technical Parameters

    Working voltage: 16~30VDC

    Working current: QB-01T is 120mA, others ≤50 mA

    Output signal: 4~20mA standard signal two wire type output (QB-01T three wire type)

    Sensor

    electrochemical sensor; QB-01T is catalytic combustion type

    Respond Time

    T90 less than 30 seconds

    Exterior Structure

    Weight ≤900g

    Mounting

    type: wall-mounted

    Transition cable: two core shield cable (QB-01T uses three core shield cable), section 2×1.5mm2, external diameter ¢10mm

    Transferring distant ≤1000m

    Anti-explosion Class

    Exd IICT6(used for explosion proofing);ExiaIICT4(used for intrinsic safety type)

    Ingress Protection

    IP66


    Detector Model

    Gas Detected

    Range

    Range Optional

    Resolution

    Responding Time

    CO Detector

    CO

    0-1000ppm

    0-500/2000/5000ppm

    1ppm

    ≤20s

    O2 Detector

    O2

    0-25%VOL

    30%VOL

    0.1%VOL

    ≤20s

    O3 Detector

    O3

    0-10ppm

    0-100ppm

    0.01ppm

    ≤20s

    H2S Detector

    H2S

    0-100ppm

    0-50/200/1000ppm

    1ppm

    ≤30s

    H2 Detector

    H2

    0-1000ppm

    0-5000ppm

    1ppm

    ≤30s

    CL2 Detector

    CL2

    0-20ppm

    0-10/100ppm

    0.1ppm

    ≤30s

    NH3 Detector

    NH3

    0-100ppm

    0-50/500/1000ppm

    1ppm

    ≤30s

    SO2 Detector

    SO2

    0-20ppm

    0-50,1000ppm

    0.1ppm

    ≤30s

    NO Detector

    NO

    0-25ppm

    0-500ppm

    0.1ppm

    ≤30s

    NO2 Detector

    NO2

    0-20ppm

    0-50/100ppm

    0.1ppm

    ≤30s

    CH2O Detector

    CH2O

    0-50ppm

    0-5/10ppm

    0.01ppm

    ≤30s

    HCL Detector

    HCL

    0-20ppm

    0-20/100ppm

    0.5ppm

    ≤30s

    Flammable Gas Detector

    EX

    0-100%LEL

    0-100%LEL

    1%

    ≤30s

    For the gas that is not covered here though, please don’t hesitate to contact us.


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