Shenzhen Zhongnuo Inspection & Technology Co., Ltd. specializes in the certification, calibration, and metrological services for gas alarms, flammable gas detectors, and toxic and harmful gas detectors, catering to various venues. We hold qualifications to serve nationwide, addressing electrical safety and explosion-proof fire prevention issues for clients, and contributing to safe production.
Regulatory Content and Methods for Regular Detection of Flammable Gas Detectors
Annually, we conduct annual inspections on industrial and commercial alarm sensors, primarily checking for measurement errors, repeatability, drift, and response time to ensure they meet standards. Additionally, we verify the suitability of the alarm sensor's installation location and whether it is subject to interference from other equipment.

Regulatory Content for Periodic Inspection of Gas Alarms
Installation spacing of inspection points
2. Installation Height of the Detector
3. Indication Error (Concentration)
Repeatability (Concentration)
5. Alarm Error (Concentration)
6. Response Time (seconds)

Which gas detectors require regular calibration and verification?
Fixed-install, handheld, and portable gas detectors, gas alarm instruments, toxic and harmful gas detectors/alarm systems, flammable gas detectors/alarm systems, gas analyzers, etc.

Routine inspection items for environmental gas detection and alarm equipment in the workplace:
Alarm sound and light (if applicable)
2. Low response value
3. Indication Error (for Gas Detectors/Gas Detector Alarms)
4. Instrument Drift (in Portable Instruments)
5. Alarm Error (for Gas Detection Alarm / Gas Alarm)
6. Pump-actuated instrument gas collection distance and flow rate (for pump-actuated instruments)
7. Power Supply (for battery-powered instruments)
8. Response Time
9. Status Indicator (with wireless communication capability)
Shenzhen ZhongNuo Testing Technology Co., Ltd. is an independent third-party institution specializing in electrical safety, electrical explosion prevention, gas detectors, and toxic/hazardous gas alarm instrument calibration, regular verification, and measurement services. We hold the necessary qualifications to provide solutions for fire and explosion prevention issues for our clients.