Load cell calibration form

20aug10

DATE____________	12-1 147697	12-2 90409	4-1 90410	4-2 90458	8-1 90407	8-2 90459
excitation voltage(volts)
mv/Vexc/80kip avg of up,dwn	1.0002	1.0413	1.0119	1.0361	1.0390	1.0341
cal load kips	80.4635	77.9328	80.5632	78.1361	78.0666	78.0838
ON-OFF volts expected	2.456	2.378	2.459	2.385	2.382	2.383
ON-OFF cnts expected	4023	3896	4029	3908	3903	3904
cal ON volts
cal OFF volts
ON-OFF volts
cal ON counts
cal OFF counts
ON-OFF counts
% err Volts
% err counts

NOTES:

Arrange gain of amp to give 50 cnts/kip (.02 kips/cnt)
50*2.5/4096 = .030518 volts/kip (4096 over 2.5 volts)
When adjusting the gain, then on-off in volts should be: calLoadKips* .030518

BEFORE CHANGES__________________ AFTER CHANGES___________________ INITIALS ______________________location: http://www.naic.edu/~phil/td/ldcell_calibration_form.html
History:

20aug10: td12-1 no 147697.

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