Vega DSGH, Operating Instructions Manual

Page: 63 / 100

DSGH Installation and Operation Guide 61
Advanced functions
Procedure 4.2: To reset the min/max history
New hardware or corrupt EEPROM
The gauge contains 2 EEPROMs (electrically erasable programmable read
only memory) that store all data specific to that sensor/electronics pair for
the installation.
The EEPROMs are located:
• On the CPU board
• On the sensor board
Each EEPROM contains a backup of the other. The system monitors both
EEPROMs at power-up to ensure accurate backups.
If you install a new CPU board, the EEPROM performs a backup of
information on the CPU. The sensor boards memory does not match the
CPU board memory. The software signals the discrepancy with an error
message. The gauge does not perform a backup in case the discrepancy is
due to EEPROM corruption rather than new hardware.
1. Select Gauge Info | Min/Max History .
2. Click Reset History .
Note: Only use the New hardware functions if you replace the CPU or
sensor assembly. These functions are unnecessary if installing
a new detector assembly, which includes the CPU board and
the sensor assembly.