详情描述

Shenzhen ZhongNuo Testing Technology Co., Ltd. specializes in the certification, calibration, and metrological services for gas alarms, flammable gas detectors, toxic and harmful gas detectors, and other equipment in various locations. We hold the necessary qualifications to serve nationwide, providing solutions to electrical safety and explosion-proof fire prevention issues for clients, and contributing to safe production.
Appearance and structure
The instrument should not have any appearance damage that affects its normal operation. The surface of newly manufactured instruments should be smooth and glossy, with a uniform paint and plating coating, free of peeling and rusting.
The instrument's connections are reliable; all dials or buttons should operate and control normally.
Branding and logos
Instrument name, model, manufacturer's name, date of manufacture, serial number, explosion-proof marking and number, as well as the manufacturing measurement instrument license marking and number for domestic instruments should be clear.
湖州气体报警器检定怎么办理
Regular Testing Contents and Methods for Flammable Gas Detectors and Alarms
Annually, we conduct annual inspections on the probes of commercial and industrial alarm systems, primarily checking for the accuracy, repeatability, drift, and response time of the alarms to ensure they meet standards. Additionally, we verify the suitability of the alarm installation location and check for any interference from other equipment.
湖州气体报警器检定怎么办理
Verification Method
Appearance and structure
Inspect visually and by touch according to the requirements of Section 4.1
Branding and Identification
Proceed according to the requirements of Section 4.2 by visual inspection.
Power-on inspection
Inspect visually and by touch in accordance with 4.3 requirements to check the 5.3.4 alarm function and alarm action values.
Introduce a standard gas substance with a concentration exceeding the alarm set point, causing the instrument to trigger an alarm. Observe whether the instrument's sound and light alarm functions properly and record the readings when the alarm is activated. Repeat the measurement three times; the arithmetic mean of the three readings is the instrument's alarm trigger value.
湖州气体报警器检定怎么办理
How often should various gas detectors be calibrated and inspected?
Instrument recalibration is typically done every 1 year, determined by the submitting unit based on actual usage. During the secondary calibration process, recalibration is required if there are doubts about the instrument's test data, if the main components of the instrument are replaced, or if recalibration is needed after repairs.
Shenzhen Zhongnuo Testing Technology Co., Ltd. is a third-party institution providing regular certification, metrological testing, and calibration services for electrical safety, electrical explosion-proofing, gas detectors, and toxic and harmful gas alarm instruments. We are qualified to address fire and explosion prevention issues for our clients.