Combustible Gas Detector High and Low Temperature Damp Heat Test Chamber

What is the Combustible Gas Detector High and Low Temperature Damp Heat Test Chamber？

The Combustible Gas Detector High and Low Temperature Damp Heat Test Chamber is designed to evaluate the performance and reliability of combustible gas detectors under extreme temperature and humidity fluctuations. This chamber exposes detectors to controlled high and low temperature cycles with damp heat conditions, assessing their response accuracy, sensitivity, and operational stability.

Scope of application:

Compliant standards:DIN 14521-1987、NF S61-820-1/IN12010、NF S61-820-2/IN12010

1. Suitable for industrial and commercial use point type combustible gas detectors, household combustible gas detectors, industrial and commercial portable combustible gas detectors, household and small catering kitchen gas alarms and sensors, household gas alarms and sensors. Functional tests and functional tests in high and low temperature, humid and hot environments;

2. The detection items of the combustible gas detector are as follows:

2.1 Alarm action value test

2.2 Range indication deviation test

2.3 Response time test

2.4 Orientation test

2.5 Alarm repeatability test

2.6 Alarm test during warm-up

2.7 High-speed airflow test

2.8 Sampling airflow change test (applicable to aspirated samples only)

2.9 Line transmission performance test (applicable only to system samples)”

2.10 Detector interchangeability test (only applicable to system samples)

2.11 Battery capacity test

2.12 Voltage fluctuation test

2.13 High temperature (operation) test

2.14 Low temperature (operation) test, constant damp heat (operation) test

2.15 Anti-gas interference performance test (not applicable to samples whose measurement range is below 3% LEL)

2.16 Anti-poisoning performance test

2.17 Anti-high-concentration gas impact performance test

2.18 Low concentration operation test

2.19 Long-term stability test, etc.;

2.20 Explosion-proof performance test;

2.21 Carbon monoxide low concentration response performance test (only applicable to samples for detecting carbon monoxide)

Performance parameters:

1. Instrument composition: composed of closed-loop wind tunnel, eddy current machine, motor, deflector, rectifier grid, air intake valve, exhaust valve, evaporator, heater, combustible gas detector test frame, combustible gas inlet, gas analyzer, temperature Humidity measuring instrument, anemometer, humidification door composition;

2. Test box:

2.1 This is a closed-loop box, standard closed-loop air duct type, the insulation layer is 150mm, the inner wall of the box is USU304# stainless steel plate, the thickness is 1.5mm, the effective cross-section of the inner chamber is 400mm*400mm, and the size of the test area is 400mm* 400mm*400mm;

2.2 There are two specifications of products, the order and quotation are different;

2.3 Enterprise Edition: It is used for production enterprises to do product testing, and the function is relatively simple. The inner volume of the wind tunnel is 0.5m3; the outer dimensions are 2500mm long, 1200mm wide and 2000mm high.

2.4 Laboratory version: It is used for laboratory detection of different combustible gas detectors, with complex functions and many detection items. The inner volume of the wind tunnel is 1.1m3; the dimensions are 4750mm in length, 1500mm in width, and 2350mm in height;

3. Fan: The wind speed range is 0m/s～6.5m/s continuously adjustable;

4. Anemometer: measurement range 0.2m/s~10m/s, measurement error ±5%, resolution ≤0.1m/s;

5. High and low temperature test and constant damp heat test:

5.1 Temperature range: -40℃～75℃;

5.2 Temperature fluctuation: 0.5℃;

5.3 Temperature deviation: ≤2℃;

5.4 Humidity deviation: ≤3%;

5.5 High temperature (operation) test.