User's Manual

MicroStrain, Inc.
Factory Calibration and Testing
Calibration
The SG-Link® OEM has no particular components which require factory calibration and
certification.
Testing
The SG-Link® OEM receives a final precision test prior to being shipped. The test is
conducted on both the differential input channel (strain channel) and the single ended
input channel (analog channel). The SG-Link® Tester Board, a precision instrument
designed and manufactured by MicroStrain, is used. The SG-Link® Tester Board
incorporates a selectable bridge configuration (full, half, quarter) coupled with a
precision shunt resistor to test the differential input channel and a 0-3 volt photocell to
test the single ended input channel.
For field validation, the SG-Link® Tester Board is shipped with each SG-Link® OEM
starter kit and may also be purchased separately.
Step-by-step instructions for the SG-Link® Tester Board may be found on the CD or on
our web site at:
350 ohm
http://www.microstrain.com/pdf/docs/SG-link-350-ohm-tester-board-quick-start.pdf
1000 ohm
http://www.microstrain.com/pdf/docs/SG-link-1000-ohm-tester-board-quick-start.pdf
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