Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in the calibration, certification, and measurement services for gas alarms, combustible gas detectors, toxic and harmful gas detectors, and other equipment at various locations. We provide nationwide services to address clients' electrical safety and explosion-proof fire prevention issues, promoting safe production.
Gas alarm regular inspection content
Installation spacing of inspection (probe) points
2. Installation Height of the Detector
3. Indicated Error (Concentration)
Repetitive (Concentration)
5. Alarm Error (Concentration)
6. Response Time (Seconds)

Measurement Instrument Control
Instrument control includes calibration, follow-up calibration, and in-service inspection.

Power-on inspection
After power is applied to the instrument, it should operate normally with clear and complete display. Check the alarm function and the alarm action values.
Alarm function and alarm action value check
The instrument's sound and light alarm should function normally. Insulation resistance
Insulation resistance for instruments using AC power should not be less than 20MΩ.

How often should various gas detectors be periodically calibrated and checked?
The recalibration time for instruments is typically one year, which is determined by the sending unit based on actual usage. During the re-calibration process, if there are any doubts about the instrument's test data, or if the main components of the instrument are replaced, as well as after repairs, the instrument needs to be recalibrated again.
Shenzhen ZhongNuo Testing Technology Co., Ltd. is a third-party institution specializing in electrical safety, electrical explosion-proofing, gas detectors, and toxic gas alarm instruments for regular calibration, measurement, and certification services. We hold the necessary qualifications to assist clients in solving fire and explosion prevention issues.