Rice Lake PR5230 Fieldbus Transmitter - Manual (Page 92)

Commissioning PR 5230 Instrument Manual
EN-92 Sartorius
5 Commissioning
The control and display assignment is described in Chapter 2.3.
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 electronics 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 electronics 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
To view the position of the CAL switch, select -[Show status]:
Info/ Status
Free system RAM 5480 of 15204 kb
Cal-Switch opened [opened] = opened; no write protection
Builtin RS232 no signal [closed] = closed; write protection is active