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The ZR402G is a Yokogawa split-type zirconia transmitter compatible with the ZR22G series probes, designed for monitoring oxygen content and water vapor in flue gas and high-temperature furnaces. The device features a color touchscreen and supports multilingual operation. Its measurement range is freely configurable from 0.01 to 100% vol O₂, and it allows switching between humidity and air-fuel ratio displays. It features two 4–20 mA analog outputs, HART digital communication, four relay alarm contacts, and is compatible with external temperature signal acquisition. Power supply: AC 100–240 V; operating temperature range: –20°C to 55°C; maximum cabling distance between the main unit and probe: 500 m. It features comprehensive built-in self-diagnostics capable of detecting faults such as heater failure, thermocouple breakage, and calibration anomalies, and supports manual and automatic calibration with calibration gas.
YOKOGAWA ZR402G Converter
YOKOGAWA ZR402G Converter
YOKOGAWA ZR402G Converter