Fixed Gas Detector

Fixed Gas Detector

GTQ-WD2200 Fixed Gas Leak Detector With Gas Alarm

GTQ-WD2200 Fixed Gas Leak Detector With Gas Alarm

GTQ-WD2200 is a fixed gas leak detector, it is designed for industrial use. When the gas concentration is abnormal, it would sound an alarm.

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Detailed Product Description

Fixed Gas Detector Description
GTQ-WD2200 fixed gas detector is designed for industrial use. By adopting high-performance gas sensor and MCU technology, combined with sophisticated SMT manufacturing process, this detector has good repeatability, high accuracy and long lifespan.

The detector is widely used in oil refineries and chemical plants in the petroleum and petrochemical industries, as well as industries where flammable gases may cause explosions such as metallurgy, electric power, gas, catering, and aquaculture.

Fixed Gas Detector Key Features

  • High measurement accuracy, stable performance and long service life
  • 4-20mA analog signal output, RS485-RTU digital upload
  • HART output, support Hart handheld communicator for settings
  • 3 relay outputs for 1st alarm, 2nd alarm and fault
  • High-performance LCD screen display
  • Non-contact operation by magnetic bar / infrared remote control
  • Smart sensor module, free of calibration, easy to maintain
  • Bluetooth communication
  • Remote upgrade function (optional)

Electrochemical Sensor Principle

1.Principle: Utilize the active chemical properties of the gas to be measured, which is reductive or oxidative. In the process of participating in the chemical reaction, electrons are released or absorbed. A large number of electrons form a current. The current size is proportional to the gas concentration. The concentration of the gas to be measured can be measured by measuring the current size.

2.Advantages: The performance is relatively stable. Most toxic and harmful gases can be measured by electrochemical sensors, and the measurement linearity is very good.

3.Disadvantages: Electrochemical sensors are consumables with a relatively short service life. The service life is 1-2 years in general environment, and needs to be replaced in 3-6 months in harsh environment, and the maintenance cost is relatively high.

4.Use: Mainly used for the detection of toxic and harmful gases.



Fixed Gas Detector Specifications

Measuring gas
Combustible gas, toxic gas
Sample method
Diffuse naturally
Power
DC24V±6V, ≤3.6W
Response time
LEL: T90≤15s
Toxic gas: T90≤30s
Electrical output
4-20mA,Hart, RS485-RTU
Relays
For 1st alarm, Fault;
SPST contacts rated 3A 30Vdcor3A 250Vac
Operation by
Magnetic bar or lR remote control
State indication
Yellow--Fault, Red--Alarm, Green--Power
Operating Temperature

LEL: -40~70℃ 

Toxic: -20~50°C

Humidity
≤95%RH(no condensation)
Ambient pressure
86KPa~106KPa
Ex grade
Ex d lC T6 Gb / Ex tD A21 IP67 T80°C
Ingress protection
IP67
Enclosure material
Stainless steel
Cable entny
NPT3/4
Dimensions
130mm x209mm x 116mm
Weight
About 2.0kg

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