TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Meterman, Model AC75
Table B-105. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 1000 V dc
Accuracy: (0.9% rdg + 2 dgts)
AC VOLTAGE
Range: 0 to 750 V ac, 50 to 500 Hz
Accuracy: (1.5% rdg + 5 dgts)
Range: 0 to 4000 μA dc
DC CURRENT
Accuracy: (1.0% rdg + 2 dgts)
AC CURRENT
Range: 0 to 600 A ac, 50 to 60 Hz
Accuracy: 0 to 100 A, (1.9% rdg + 2 A); 101 to 400 A, (1.9% rdg + 1 A);
401 to 600 A, (2.5% rdg + 7 A)1
Range: 0 to 40 MΩ
Accuracy: 400 Ω range, (1.0% rdg + 2 dgts); 4 to 400 kΩ ranges, (0.7% rdg +
2 dgts); 4 MΩ range, (1.0% rdg + 2 dgts); 40 MΩ range, (1.5% rdg
+ 2 dgts)
Range: 0 to 4 mF
Accuracy: 4 nF range, (3.0% rdg + 20 dgts); 40 nF to 4 mF ranges, (2.0% rdg
+ 8 dgts)
TEMPERATURE
Range: -40 to 400 C; -40 to 1000 F
Accuracy: -40 to 0.1 C, (1.0% rdg + 4 C); 0 to 400 C, (1.0% rdg + 3 C);
-40 to 32 F, (1.0% rdg + 8 F); 32 to 750 F, (1.0% rdg + 6 F);
750 to 1000 F, (2.0% rdg + 8 F)
0.0 to 500 A continuous, 501 to 600 A 10 minutes maximum followed by 10 minutes cooling period.
1
Table B-106. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
3.6
4
3.566
3.634
12
40
11.87
12.13
28
40
27.73
28.27
36
40
35.66
36.34
-36
40
-36.34
-35.66
360
400
356.6
363.4
750
1000
741
759
Table B-107. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
3.6 @ 50 Hz
4
3.541
3.659
3.6 @ 500 Hz
4
3.541
3.659
36 @ 50 Hz
40
35.41
36.59
36 @ 500 Hz
40
35.41
36.59
360 @ 50 Hz
400
354.1
365.9
360 @ 50 Hz
400
354.1
365.9
675 @ 50 Hz
750
660
690
675 @ 500 Hz
750
660
690
B-30
