Servo Level Gauge · Cargo Level & Temperature Gauging
The Honeywell Enraf 854 ATG is a servo level gauge used for automatic tank gauging of cargo tanks. A displacer on a measuring wire is balanced by a servo motor, so the position of the displacer follows the liquid level and gives an accurate level reading; the same principle can be used to determine interface level and density. It is mounted on a tank nozzle and connected to the cargo control system for inventory and custody-transfer measurement.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect process connections, seals, valves, actuators, pumps, sensors, piping and supports applicable to the listed cargo equipment. Maintain material compatibility with the actual cargo and clean deposits before they restrict movement or measurement. Trend pressure, temperature, level, flow or operating response against established normal conditions. Function-test remote controls, alarms, shutdowns and emergency stops before cargo operations. Inspect hazardous-area electrical and bonding arrangements for integrity. Refer to the manufacturer documentation for the exact figure for cargo compatibility, calibration, operating limits and wear criteria.
Keep cargo-compatible seals and gaskets, valve service kits, sensors, cable glands, pump or actuator parts and manufacturer-recommended process components. Replacement materials must match the certified cargo service and hazardous-area approval.
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