Eclipse 705 GWR Level Transmitter's calibration and calibration verification are easily accomplished in a controlled workshop environment calibration test fixture. This feature allows the user to validate the initial, in-situ calibration, without the need to remove the probe from the vessel. This avoids the need for further time consuming and expensive in – situ process validation procedures, such as RO or WFI water metering and because the probe remains in the vessel there is no need for pressurising or depressurising of the vessel or further CIP/SIP cleaning regimes.
The test probe is mounted horizontally on a custom made test fixture fitted with a sliding target plate that can be moved along its entire length, to simulate desired test points. As all calibration information is stored in the electronics, either the electronics or the whole ”quick disconnect” transmitter housing can be quickly and easily removed, refitted to the test probe and powered up. The transmitter output can then be verified against the measured distance from the process connection to the target.