Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in the calibration, certification, and metrological services for gas alarms, combustible gas detectors, toxic and harmful gas detectors, and other equipment for various locations. We offer services nationwide, addressing electrical safety and explosion-proof fire prevention issues for clients, and contributing to safe production.
Gas Alarm Detector Regular Inspection Content
Installation spacing of testing points
2. Installation Height of the Detector
3. Indicated Error (Concentration)
4. Repeatability (Concentration)
5. Alarm Error (Concentration)
6. Response Time (Seconds)

The calibration cycle for flammable gas detectors is typically once a year.
In accordance with the standard JJG 693-2011 "Flammable Gas Detectors," the calibration cycle for flammable gas alarms generally does not exceed one year. This means that under normal circumstances, a comprehensive calibration and test of the flammable gas alarm is required annually to ensure its performance meets the relevant requirements.

The detection principle of the instruments mainly includes catalytic combustion, infrared absorption, and thermal conductivity types. The sampling methods include diffusion and aspiration. The instruments are primarily composed of detection elements, amplification circuits, alarm systems, and displays, used for monitoring the concentration of combustible gases in the environment.

Regulatory Content and Methods for Regular Flammable Gas Detector Inspection
Annual inspections of the industrial and commercial alarm sensors are conducted regularly, primarily to check if the alarm sensors' indication errors, repeatability, drift, and response times meet the standards. Additionally, the suitability of the alarm sensor's installation location and any interference from other equipment are also examined.
Shenzhen ZhongNuo Testing Technology Co., Ltd. is a third-party institution specializing in electrical safety, electrical explosion-proofing, gas alarms, and toxic gas detection instruments for regular inspections, calibration, and metrological services. We provide资质 to address fire and explosion prevention issues for clients.