PR5230 Instrument Manual
Commissioning
Sartorius
EN-95
5.4
Calibration
Calibration using weights, mV/V or load cell data can be done using the VNC program. During calibration, the
instrument must be set to gross weight display (reset tare, if necessary).
For a ’legal-for-trade’ application, set the mode under
-[Calibration]-[Param] to [W
&
M] before starting
calibration; see Chapter 5.4.12.1. Select [New] to go to the maximum capacity [Max] (see Chapter 5.4.3); select
the scale interval and determine the dead load. Now calibrate the maximum capacity by applying a calibration
weight, in mV/V or with load cell data.
After determining the test value, the menu can be closed as described in Chapter 5.4.11, in order to save the
new settings. Calibration data can be protected by the CAL switch (see Chapter 5.1.1), which must be sealed in
the closed (write-protected) position for ‘legal-for-trade’ applications.
5.4.1
Displaying Calibration Data
When the CAL switch is closed, the following message is displayed, only data
display possible with [Param]:
With [View], the calibration data can be displayed, but not changed.
WP A/
View Calibration
Max
3000 d
3000 kg
Number of scale intervals and max. capacity
Scale interval
3000 d
1 kg
Scale interval
Deadload at
0.00 kg
0.000000
Dead load in weight and mV/V
Max at
3000.00 kg
1.000000
Weight and mV/V for maximum capacity
Calibrated at
3000.00 kg
1.000000
Test load* and corresponding mV/V
Sensitivity
833.33
4.000000
Number of internal counts and voltage
per scale interval
Param
The calibration data and parameters (press [Param]) are displayed in the format entered/determined during
calibration.
* After input with mV/V, the maximum capacity and the mV/V value entered are displayed.
5.4.1.1
Increased Resolution (10-Fold)
In the
-[Calibration] menu, the weight is displayed with 10-fold resolution (also with the CAL switch
closed) when you press the key
, and marked as an invalid weight with
above the weight unit. The
display on the instrument remains unchanged. After 5 s, the VNC display returns to normal resolution or you
can press the key to return to normal display immediately.
