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Ammonia(nh3) gas monitor/detector transmitter for refrigerant leak

Henan Chicheng Electric Co.,Ltd

Ammonia(nh3) gas monitor/detector transmitter for refrigerant leak

Brand Name : chicheng

Model Number : QB2000N

Certification : NTEX

Place of Origin : china

MOQ : 1

Price : usd322/pc

Payment Terms : t/t

Supply Ability : 10000pcs/month

Delivery Time : 6 working days

Packaging Details : in carton

Display : LCD

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Refrigerant such like ammonia will be used in cooling room. But the ammonia gas is very toxic, leakage of ammonia is very dangerous.
So ammonia gas monitor QB2000N is always used in cooling room, refrigerant tank, or beside the freeze machine to monitor the gas leakage in real time.

  • 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.


Quality Ammonia(nh3) gas monitor/detector transmitter for refrigerant leak for sale

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