National Instruments NI 5421, Calibration Procedure

Page: 24 / 60

NI 5421/5441 Calibration Procedure 24 ni.com
Table 5. Values for Verifying the Offset of the Main Analog Path
Iteration Gain
Ideal Positive
Offset (Volts)
Ideal Negative
Offset
(Volts)
Calibration Test
Limit
(Volts)
Published Spec
(Volts)
1 12.000000 6.000000 –6.000000 ±0.021500 ±0.051500
2 10.000000 5.000000 –5.000000 ±0.018000 ±0.043000
3 7.000000 3.500000 –3.500000 ±0.012750 ±0.030250
4 5.000000 2.500000 –2.500000 ±0.009250 ±0.021750
5 3.500000 1.750000 –1.750000 ±0.006625 ±0.015375
6 2.500000 1.250000 –1.250000 ±0.004875 ±0.011125
7 2.000000 1.000000 –1.000000 ±0.004000 ±0.009000
8 1.650000 0.825000 –0.825000 ±0.003388 ±0.007513
9 1.250000 0.625000 –0.625000 ±0.002688 ±0.005813
10 0.850000 0.425000 –0.425000 ±0.001988 ±0.004113
11 0.600000 0.300000 –0.300000 ±0.001550 ±0.003050
12 0.415000 0.207500 –0.207500 ±0.001226 ±0.002264
13 0.300000 0.150000 –0.150000 ±0.001025 ±0.001775
14 0.205000 0.102500 –0.102500 ±0.000859 ±0.001371
15 0.150000 0.075000 –0.075000 ±0.000763 ±0.001138
16 0.105000 0.052500 –0.052500 ±0.000684 ±0.000946
17 0.075000 0.037500 –0.037500 ±0.000631 ±0.000819
18 0.055000 0.027500 –0.027500 ±0.000596 ±0.000734
19 0.037500 0.018750 –0.018750 ±0.000566 ±0.000659
20 0.026000 0.013000 –0.013000 ±0.000546 ±0.000611
21 0.018500 0.009250 – 0.009250 ±0.000532 ±0.000579
22 0.013000 0.006500 – 0.006500 ±0.000523 ±0.000555
23 0.009000 0.004500 – 0.004500 ±0.000516 ±0.000538
24 0.006500 0.003250 – 0.003250 ±0.000511 ±0.000528
Note : Error Positive Offset Value = ( Measured Positive Offset Value ) – ( Ideal Positive Offset Value )
Error Negative Offset Value = ( Measured Negative Offset Value ) – ( Ideal Negative Offset Value )