Gas Sensor Alarm Comprehensive Calibration DeviceAQJY-II

Product Introduction

The comprehensive calibration device for mining safety instruments, independently developed by Zhengzhou Aidi Technology, is primarily used for the metrological verification of methane, carbon monoxide sensors, carbon dioxide sensors, oxygen detectors, and other instruments used in monitoring and control systems at coal mine operation sites.

Execution Standards

JJG (Coal) 09-98 "Verification Regulation for Carbon Monoxide Detection and Alarm Instruments", JJG678-2007 "Catalytic Combustion Type Methane Detectors"

Technical Parameters

1. Output flow rate: (30～300) ml/min adjustable; flow meter: 2.5 grade.

2. Electrical parameter measurement:

a. Current measurement range: (0～2) A, accuracy class 0.2% F.S;

b. Voltage measurement range: (0～20) V, accuracy class 0.2% F.S;

c. Frequency measurement range: (0～10) KHz, accuracy class 0.01% F.S.

3. Acceptable sensor signal types: frequency, current, RS485.

4. Verifiable items (varies depending on the instrument)