Samon GJ-EX Series - User Manual

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Summary

Identifies the GJ-EX detector type across Swedish, English, German, Spanish, and French.

Specifies X/Y dimensions and gas-specific height (H1, H2, H3) for detector placement.

Details factory alarm levels (Ammonia, LEL, HFC) when connected to MPU.

Details factory alarm levels (Ammonia, LEL, HFC) when connected to G27C.

Describes GJ-EX features, how it measures gas, and alarm levels.

Provides guidance on connecting, testing, and calibrating the GJ-EX detector.

Lists technical specifications, model numbers, and ATEX/safety approvals.

General

Explosion-proof Grade	Ex d IIC T6 Gb
Protection Grade	IP66
Detection Principle	Electrochemical, Catalytic, Infrared, or Semiconductor (depends on model)
Operating Temperature	-20°C to 50°C
Operating Humidity	10% to 95% RH (non-condensing)
Output Signal	4-20mA, RS485
Power Supply	24VDC
Measurement Range	0-100%LEL (Combustible Gas), Varies by gas (Toxic Gas), 0-30%VOL (Oxygen)
Display	LCD with backlight
Alarms	Audible and visual alarms
Communication	RS485 Modbus
Weight	Approx. 1.5 kg (varies by model)