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CGMC-1 CO monitoring device for coal mill

CGMC-1 CO monitoring device for coal mill

Product introduction

CGMC-1 CO monitoring device for coal mill is mainly used for fire early warning for coal mill, and detection of CO produced by pulverized coal’s spontaneous combustion in coal mill. It’s mainly composed by infrared analyzer, micro pressure circulating gas sampling probe and system control cabinet. System control cabinet comprises sample gas pre-treatment device, automatic calibration device and automatic cleaning & purging device etc. with the single-beam dual-wavelength infrared measurement technology and high-precision digital processing technology, the infrared analyzer can rapidly detect concentration changes of CO gas, and output the standard 4-20mA current signal as well as alarm signal, providing valuable evidence for fire early warning.

Performance characteristics

Stable and reliable with a small amount of maintenance workload

The creative micro pressure circulating gas sampling probe solves the problem of filter pollution and clogging caused by dust.

Functions of regular automatic cleaning and automatic calibration make it unnecessary for manual intervention,

Accurate measurement, high sensitivity

Patent authorized “cyclic measurement + emptying measurement” dual operating mode achieves fast gas extraction, sampling and analyzing.

The single-beam dual-wavelength infrared measurement technology will not affected by dust and moisture, with long service life and high measuring accuracy.

The design of “one-to-two” is safe with adequate guarantee

One set of device can be equipped with two sampling probes, and meanwhile the monitoring of CO content of inlet and outlet in cola mill can be realized. Double safeguard.


Technical parameters

Sampling approach: micro pressure circulating sampling

Measuring range: 0-20000ppm (other ranges can be customized)

Resolution: 1ppm

Response time: ≤30s

Intrinsic error: ≤±2%FS

Stability: ≤±2%FS/12 months

Filtration accuracy: 0.3 micron

Power supply: 220(1±10%)VAC/50Hz

Analog output: 4-20mA

Alarm output: SPST mode