HP E1328A Service Manual page 36

Table 4-2. Performance Test Record for the HP E1328A DAC (Page 3 of 3)
Current Accuracy Measurements*
Ch Output
Value (mA)
1 -20.00000
1 -16.00000
1 -10.00000
1 -4.00000
1 0.00000
1 +4.00000
1 +10.00000
1 +16.00000
1 +20.00000
2 -20.00000
2 -16.00000
2 -10.00000
2 -4.00000
2 0.00000
2 +4.00000
2 +10.00000
2 +16.00000
2 +20.00000
3 -20.00000
3 -16.00000
3 -10.00000
3 -4.00000
3 0.00000
3 +4.00000
3 +10.00000
3 +16.00000
3 +20.00000
4 -20.00000
4 -16.00000
4 -10.00000
4 -4.00000
4 0.00000
4 +4.00000
4 +10.00000
4 +16.00000
4 +20.00000
* 1-year DAC and HP 3458A specifications
5°C temp difference from cal temperature
HP 3458A ACAL within previous 24-hours
36 Verification Tests
Low Limit Measured Value
(mA) (mA)
-20.29665 ________________
-16.28265 ________________
-10.26165 ________________
-4.24065 ________________
-.22665 ________________
+3.75935 ________________
+9.73835 ________________
+15.71735 ________________
+19.70335 ________________
-20.29665 ________________
-16.28265
________________
-10.26165 ________________
-4.24065 ________________
-.22665 ________________
+3.75935 ________________
+9.73835 ________________
+15.71735 ________________
+19.70335 ________________
-20.29665
________________
-16.28265 ________________
-10.26165 ________________
-4.24065 ________________
-.22665 ________________
+3.75935 ________________
+9.73835 ________________
+15.71735 ________________
+19.70335 ________________
-20.29665 ________________
-16.28265 ________________
-10.26165 ________________
-4.24065 ________________
-.22665 ________________
+3.75935 ________________
+9.73835 ________________
+15.71735 ________________
+19.70335 ________________
High Limit Meas Uncert
(mA)
( A)
-19.70335
-15.71735
-9.73835
-3.75935
+.22665
+4.24065
+10.26165
+16.28265
+20.29665
-19.70335
-15.71735
-9.73835
-3.75935
+.22665
+4.24065
+10.26165
+16.28265
+20.29665
-19.70335
-15.71735
-9.73835
-3.75935
+.22665
+4.24065
+10.26165
+16.28265
+20.29665
-19.70335
-15.71735
-9.73835
-3.75935
+.22665
+4.24065
+10.26165
+16.28265
+20.29665
Test Acc
Ratio (TAR)
1.440 >10:1
1.272 >10:1
.330 >10:1
.168 >10:1
.060 >10:1
.168 >10:1
.330 >10:1
1.272 >10:1
1.440 >10:1
1.440 >10:1
1.272 >10:1
.330 >10:1
.168 >10:1
.060 >10:1
.168 >10:1
.330 >10:1
1.272 >10:1
1.440 >10:1
1.440 >10:1
1.272 >10:1
.330 >10:1
.168 >10:1
.060 >10:1
.168 >10:1
.330 >10:1
1.272 >10:1
1.440 >10:1
1.440 >10:1
1.272 >10:1
.330 >10:1
.168 >10:1
.060 >10:1
.168 >10:1
.330 >10:1
1.272 >10:1
1.440 >10:1
Chapter 4