TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Extech, Model 38389 Continued
Table B-55. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
3.6 @ 50 Hz
4
3.559
3.641
3.6 @ 60 Hz
4
3.559
3.641
36 @ 50 Hz
40
35.43
36.57
36 @ 60 Hz
40
35.43
36.57
360 @ 50 Hz
400
354.3
365.7
360 @ 60 Hz
400
354.3
365.7
540 @ 50 Hz
600
523
557
Table B-56. DC Current (≤500 A) (w/50-Turn Coil).
Calibrator output
Test instrument
Applied
Range
Limits (A dc)
(A dc)
(A dc)
Min
Max
1.2
400
57.9
62.1
5.4
400
261.6
278.4
7.2
400
347.1
372.9
2.7
600
128
142
6.3
600
301.6
328.4
Table B-57. DC Current (≤1000 A) (w/50-Turn Coil).
Calibrator output
Ammeter calibrator
Test instrument
Applied
Range
Range
Limits (A dc)
(V dc)
(A dc)
(A dc)
Min
Max
1.08
20
600
512
568
Table B-58. AC Current (≤500 A) (w/50-Turn Coil).
Calibrator output
Test instrument
Applied
Range
Limits (A ac)
(A ac)
(A ac)
Min
Max
1.2 @ 50 Hz
400
57.6
62.4
1.2 @ 60 Hz
400
57.6
62.4
5.4 @ 50 Hz
400
260.3
279.7
5.4 @ 60 Hz
400
260.3
279.7
7.2 @ 50 Hz
400
346.8
373.2
7.2 @ 60 Hz
400
346.8
373.2
2.7 @ 50 Hz
600
127
143
2.7 @ 60 Hz
600
127
143
6.3 @ 50 Hz
600
299
331
6.3 @ 60 Hz
600
299
331
B-16
