Customized Scaling Procedure - Omega HHP-SG User Manual

Handheld strain gage indicator
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C
5.1 CUSTOM SCALING PROCEDURE
Use this procedure if you desire to scale your Strain Guage
Indicator with other than the standard default scaling of 1999
counts equaling a full-scale reading.
1
Determine the full-scale reading you desire in terms of counts.
This must be between 0 and 1999 counts.
Example:
2
Divide the number of counts determined in step 1 by 10 to
obtain the number of mV required to achieve the desired
counts.
Example:
3
Divide the number of mV obtained in step 2 by 2.
Example:
4
Determine the full-scale output of your device (load cell, strain
gage, etc.) in terms of mV.
Example: You have a torque cell with a full-scale output
sensitivity of 2.2249 mV/V. Multiply this value by the excitation
voltage you have selected. (e.g. 1.24V or 2.50V)
2.2249 mV/V x 1.24V = 2.7588 mV
5
Divide the result of step 3 by the result of step 4.
Example:
(This value is the amplifier gain that is necessary to give you
the full-scale reading you desire.)
USTOMIZED
You desire a full-scale reading of 500 counts to
correspond to an actual reading of 50.0 in/lbs.
500 counts = 50 mV
10
50 mV
= 25 mV
2
25 mV
= 9.06
2.7588
S
P
CALING
ROCEDURE
5
15

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