TB 9-6625-199-24
APPENDIX B
PERFORMANCE TABLES
Wavetek, Model DM73A
Table B-151. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 300 V dc
Accuracy: 420 mV dc, 4.2 V dc, 42 V dc rngs, (0.5% rdg + 4 dgts);
300 V dc rng, (0.7% rdg + 4 dgts)
AC VOLTAGE
Range: 0 to 300 V ac, 50 to 500 Hz
Accuracy: (1.5% rdg + 8 dgts)
Range: 0 to 4.2 MΩ
Accuracy: 420 Ω rng, (1.5% rdg + 6 dgts);
4.2 to 420 kΩ rngs, (0.7% rdg + 4 dgts);
4.2 MΩ rng, (1.2% rdg + 4 dgts)
Table B-152. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
400 m
420 m
397.6 m
402.4 m
4
4.2
3.976
4.024
5
42
4.93
5.07
10
42
9.91
10.09
-10
42
-10.09
-9.91
20
42
19.86
20.14
30
42
29.81
30.19
40
42
39.76
40.24
50
300
49.2
50.8
290
300
287.6
292.4
Table B-153. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
4 @ 50 Hz
4.2
3.932
4.068
4 @ 500 Hz
4.2
3.932
4.068
40 @ 50 Hz
42
39.32
40.68
40 @ 500 Hz
42
39.32
40.68
280 @ 50 Hz
300
275.0
285.0
280 @ 500 Hz
300
275.0
285.0
Table B-154. Resistance.
Calibrator output
Test instrument
Limits (%/Ω)
Applied
Range
(Ω)
(Ω)
Min
Max
190
420
-1.842% (186.5)
+1.842% (193.5)
1.9 k
4.2 k
-0.895% (1.883 k)
+0.895% (1.917 k)
19 k
42 k
-0.895% (18.83 k)
+0.895% (19.17 k)
190 k
420 k
-0.895% (188.3 k)
+0.895% (191.7 k)
1.9 M
4.2 M
-1.421% (1.873 M)
+1.421% (1.927 M)
B-60