TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
UEI, Model DL250
Table B-174. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 600 V dc
Accuracy: (0.9% rdg + 2 dgts)
AC VOLTAGE
Range: 0 to 600 V ac
Accuracy: 50 to 400 Hz, (1.9% rdg + 3 dgts)
Range: 0 to 400 μA
DC CURRENT
Accuracy: 40 μA range, (1.0% rdg + 5 dgts); 400 μA range,
(1.5% rdg + 2 dgts)
AC CURRENT
Range: 0 to 400 A ac
Accuracy: 50 to 400 Hz, 40 A range, (3.0% rdg + 20 dgts); 400 A range,
(2.0% rdg + 5 dgts)
Range: 0 to 40 MΩ
Accuracy: 400 Ω, 4 kΩ, 40 kΩ and 400 kΩ ranges, (0.9% rdg + 3 dgts);
4 MΩ range, (1.2% rdg + 15 dgts); 40 MΩ range,
(1.5% rdg + 5 dgts)
Range: 0 to 10,000 μF
Accuracy: 1, 10 and 100 μF ranges, (1.7% rdg + 5 dgts); 1000 μF range,
(2.5% rdg + 15 dgts); 10,000 μF range, (15.0% rdg + 100 dgts)
TEMPERATURE
Range: -40 to 750 F
Accuracy: -40 to 15 F, (5.0% rdg + 5 F); 15 to 750 F, (1.0% rdg + 3 F)
Table B-175. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
3.6
4
3.566
3.634
36
40
35.66
36.34
120
400
118.7
121.3
280
400
277.3
282.7
360
400
356.6
363.4
-360
400
-363.4
-356.6
540
600
533
547
Table B-176. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
3.6 @ 50 Hz
4
3.529
3.671
3.6 @ 400 Hz
4
3.529
3.671
36 @ 50 Hz
40
35.29
36.71
36 @ 400 Hz
40
35.29
36.71
360 @ 50 Hz
400
352.9
367.1
360 @ 400 Hz
400
352.9
367.1
540 @ 50 Hz
600
527
553
540 @ 400 Hz
600
527
553
B-52
