Calibration/
Adjustment without Weights
You can perform calibration/adjustment
without weights in the service mode
by entering the load cell specifications.
Note on Settings
! Calibration without weights is not
permitted on weighing instruments
used in legal metrology.
– Calibration/adjustment without weight
can only be performed in service mode,
and only when the menu access switch
is open.
– Enter the parameters required for
calibration/adjustment without weights
in the Setup menu (in service mode)
for the first weighing instrument under
“WP-1" and for the second weighing
instrument under “Com1, WP-2" or
“UniCOM, WP-2." Settings are con-
figured in the corresponding numeric
menu under menu item 1.19.
– The nominal capacity must be entered
in kg.
– The resolution must be entered in
kg and must be in agreement with the
scale interval d entered for A/D
converter configuration.
– Enter the sensitivity of the load cell
in mV/V (usually listed in the load cell
specification sheets).
– Note:
Select menu item 1.19.7 to store the
data entered. Once the A/D converter
configuration data has been stored,
these parameters can no longer be read.
Procedure
– Open the menu access switch
– Activate the service mode
– Select the weighing instrument
– Enter the nominal capacity of the load
cell(s) in kg under menu item 1.19.1.
If the weighing instrument has more
than one load cell, multiply the nominal
capacity accordingly (e.g., 4 load cells
with 50 kg nominal capacity each yields
a nominal capacity of 200 kg)
– Enter the resolution of the load cell(s)
in kg under menu item 1.19.2. The
value must be in agreement with the
scale interval d entered under menu
item 11.4.1.
– Enter the sensitivity of the load cell in
mV/V under menu item 1.19.3.
– If the weighing instrument has multiple
load cells, enter the individual values
for the load cells under 1.19.3 through
1.19.6, or enter the mean value of all
load cells under 1.19.3.
– Save the values entered for
calibration/adjustment without weights
by selecting menu item 1.19.7.
– Close the menu access switch
88
Service
Diagram of the Menu for Calibration/Adjustment Without Weights
1.19 Calibration/Adjustment Without Weights (Enter Load Cell Specifications)
1.19.1 Nominal capacity
1.19.2 Resolution
1.19.3 Sensitivity in mV/V for load cell 1 (or mean derived from all load cells)
1.19.4 Sensitivity in mV/V for load cell 2
1.19.5 Sensitivity in mV/V for load cell 3
1.19.6 Sensitivity in mV/V for load cell 4
1.19.7 Store values entered for 1.19
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