Setting The Preload; Clearing The Preload; Calibration/Adjustment Without Weights - Sartorius Signum Serie Instrucciones De Instalación

Setting the Preload

Notes on Settings
! The preload can be set only when the
menu access switch is open.
– The "set preload" function must
be assigned to the J key (menu item
1.9.8) (see page 15).
! After setting the preload, close the
menu access switch and reset the
J key to its previous function
(e.g., external calibration/adjustment
with user-defined weights) under menu
item 1.9.
Calibration/Adjustment
without Weights
You can perform calibration/adjustment
without weights in the service mode by
entering the load cell specifications
(e.g., hopper weighing with known load
call specifications).
Notes on Settings
! Calibration/adjustment without
weights is not permitted on weighing
instruments used in legal metrology.

– Calibration/adjustment without weights

can only be performed in service mode,
and only when the menu access switch
is open.
Diagram of Menu for Calibration/Adjustment Without Weights
1.19
1.19.1
1.19.3
119.4
1.19.5
1.19.6
1.19.7
1.19.8
20 20

Clearing the Preload

Notes on Settings
! The preload can be cleared only when
the menu access switch is open.
– The "clear preload" function must
be assigned to the J key (menu item
1.9.9) (see page 15).
! After clearing the preload, close
the menu access switch and reset the
J key to its previous function
(e.g., external calibration/adjustment
with user-defined weights) under menu
item 1.9.
– To enter the parameters required for
calibration/adjustment without weights,
activate the service mode (see "Service
Mode"), open the Setup menu and
select the COMSPEC submenu. Settings
are configured in the corresponding
numeric menu under menu item 1.19.
– The nominal capacity must be entered
in the weight unit selected under 1.7.x.
– Enter the sensitivity of the load cell in
mV/V (usually listed in the load cell
specification sheets).
– Note:
Select menu item 1.19.8 to store the
data entered. Once the ADC configura-
tion data has been stored, these param-
eters can no longer be read out.
Calibration/Adjustment without Weights (Entering Load Cell Specifications)
Nominal capacity
Sensitivity in mV/V for load cell 1 (or mean derived from all load cells)
Sensitivity in mV/V for load cell 2
Sensitivity in mV/V for load cell 3
Sensitivity in mV/V for load cell 4
Dead load (zero point offset)
Store values entered for 1.19
Procedure
– Open the menu access switch
– Activate the service mode
– Select the weighing platform
– Enter the nominal capacity of the load
cell(s) 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 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.
– Enter the dead load (preload) for
a hopper in mV/V under 1.19.7.
– Save the values entered for calibration/
adjustment without weights by select-
ing menu item 1.19.8.
– Close the menu access switch