MTS Series 793 - Manual (Page 210)

MTS Series 793 Tuning and Calibration
Extensometer Calibration
Calibration Procedures 210
Task 6 Establish the shunt calibration reference
Each DC conditioner supports a shunt resistor. To establish the shunt reference
value, perform the following tasks.
1. Depending on your extensometer type, install a zero pin, gage block, or
special fixturing to mechanically hold the extensometer at its zero position.
2. Determine the shunt calibration resistor from the following table:
3. FlexTest SE/LE, FlexTest GT, TestStar IIm Controllers only: If you do not
have transducer ID modules on your sensor cables, install the shunt
calibration resistor as follows:
A. Select the appropriate shunt calibration resistor.
B. Bend the resistor leads 90º for a 0.3 inch separation.
C. Cut the resistor leads 0.12 inch from the bend.
D. Insert the resistor into the connector solder cups and solder.
E. Complete and attach a shunt calibration label as specified on the
493.40/41 Carrier I/O Shunt Calibration Kit (MTS PN 100-028-185).
B RIDGE
R ESISTANCE S ENSITIVITY
R ANGE
(% F ULL S CALE )
R ESISTOR
V ALUE
350 Ω 2 mV/V 100%
50%
20%
10%
49.9 k
100 k
249 k
499 k
350 Ω 1 mV/V 100%
50%
20%
10%
100 k
200 k
499 k
1000 k
700 Ω 2 mV/V 100%
50%
20%
10%
100 k
200 k
499 k
1000 k
700 Ω 1 mV/V 100%
50%
20%
10%
200 k
402 k
1000 k
2000 k