DSGH Installation and Operation Guide 63
Advanced functions
Usually, you can repair the corruption using the EEPROM backup.
Procedure 4.4: To repair the corruption using the EEPROM
backup
Test modes
In the test modes, the transmitter stops measuring the process material and
allows manual adjustment of critical variables for troubleshooting.
The test modes function independently, but you can use them in
combination to test multiple variable effects.
All test modes time out after one hour if you do not exit.
Test tab
Current Loop Test (milliamp output)
This mode manually forces the current output to a specified value. This is
useful for verifying the current loop calibration. To calibrate the current loop,
see Chapter 3: “Calibration”.
Caution: If you suspect an EEPROM is corrupt, please call VEGA
Field Service for advice before performing the following procedure.
1. Select Diagnostics | New Hardware | No New Hardware.
2. Click OK.
Caution: While in a test mode, the gauge is not measuring process,
so its current output does not reflect the process value. If your DCS is
controlling from the gauge's current output, remove the system from
automatic control before entering a test mode, as prompted by the
software screens.
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