PR5230 Instrument Manual
Commissioning
Sartorius
EN-81
5
Commissioning
5.1
Data Protection/Power Failure
The calibration data and parameters as well as all configuration and interface data are stored in non-volatile
(EAROM) memory. Unauthorized data changing can be prevented by an access code. Additional write
protection is provided for calibration data and parameters (CAL switch, see Chapter 5.1.1).
Clock and calendar continue running in the event of a power failure.
5.1.1
CAL Switch
The CAL switch is located on the weighing electronic board. Generally, we recommend setting the switch into
the closed position after calibration to prevent accidental overwriting/data loss.
With legal-for-trade applications, the CAL switch must be sealed in the closed position.
Note:
If the weighing electronic board has been changed after calibration or the device is not
calibrated the weight value display will show ‘E:BadDev’ if the CAL switch is closed.
Status Indication
Switch
settings
[opened]
Weight value normal
[closed]
Weight value invers
Legend
[opened]
= opened; no write protection
[closed]
= closed; write protection is active
To view the position of the CAL switch, select -[Show status]:
Info/
Status
Free system RAM
5480 of 15204 kb
Cal-Switch opened
Builtin RS232
no signal