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C
ALIBRATION
& G
AIN
S
ELECTION
4
13
4.2
SPAN CALIBRATION
4.2.1
Adjust ZERO POT to a 000 display count as
suggested in section 4.1.
4.2.2
Apply full scale signal per given strain gage. For
3mV/V and 1.24 V excitation, apply 3.720 mV at
± SIGNAL input.
4.2.3
Use SPAN POT to fine tune to a 1999 display count.
4.3
After proceeding through the steps above, apply a
ZERO signal again and check for a 000 display count.
If the ZERO has shifted, repeat the steps for ZERO
and SPAN calibration.
Table 4.4
S3 JUMPER SWITCH DESCRIPTION
Table 4.5
SOLDER SWITCH DESCRIPTION
JUMPER SWITCH
FUNCTION
SELECTED DECIMAL POINT POSITION
V
TEST SEGMENT
U
DUMMY ZERO
T
1XXX.0
S
1XX.X0
R
1X.XX0
Q
1.XXX0
SOLDER SWITCH
FUNCTION
A
Output is connected to SPAN POT. See NOTE 4.
B
Gain Resistor R6 (750 Ohm) is selected.
See Table 4.1 and 4.2.
C
Gain Resistor R7 (OPEN) is selected.
Default OPEN. See NOTE 5.