TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Megger, Model DET14C
Table B-170. Calibration Description.
Test instrument parameters
Performance specifications
AC CURRENT
Range: 0.5 mA to 35.0 A, 50 to 60 Hz
Accuracy: 0.5 mA to 9.99 mA, (2.0% rdg + 0.05 mA); 10.0 mA to 99.9 mA,
(2.0% rdg + 0.1 mA); 100 mA to 999 mA, (2.0% rdg + 1 mA);
1.00 A to 9.99 A, (2.0% rdg + 0.01 A); 10.0 A to 35.0 A,
(2.0% rdg + 0.1 A)
Range: 0.05 Ω to 1500 Ω
Accuracy: 0.05 to 0.99 Ω, (1.5% rdg + 0.05 Ω); 1.00 to 9.99 Ω,
(1.5% rdg + 0.1 Ω); 10.0 to 99.9 Ω, (2.0% rdg + 0.5 Ω);
100.0 to 199.9 Ω, (5.0% rdg + 1 Ω); 200 to 400 Ω, (6.0% rdg + 5 Ω);
400 to 600 Ω, (10% rdg + 10 Ω); 600 to 1200 Ω, 20% rdg;
1200 to 1500 Ω, 35% rdg
Table B-171. AC Current (≤500 A).
Calibrator output
Test instrument
Applied
Range
Limits (A dc)
(A ac)
(A ac)
Min
Max
0.75 mA @ 50 Hz
AUTO
0.68 m
0.82 m
0.75 mA @ 60 Hz
AUTO
0.68 m
0.82 m
5 mA @ 50 Hz
AUTO
4.85 m
5.15 m
5 mA @ 60 Hz
AUTO
4.85 m
5.15 m
50 mA @ 50 Hz
AUTO
48.9 m
51.1 m
50 mA @ 60 Hz
AUTO
48.9 m
51.1 m
500 mA @ 50 Hz
AUTO
489 m
511 m
500 mA @ 60 Hz
AUTO
489 m
511 m
5 A @ 50 Hz
AUTO
4.89
5.11
5 A @ 60 Hz
AUTO
4.89
5.11
10 A @ 50 Hz
AUTO
9.7
10.3
10 A @ 60 Hz
AUTO
9.7
10.3
Table B-172. AC Current (≤500 A) (w/10 Turn Coil).
Calibrator output
Test instrument
Applied
Range
Limits (A dc)
(A ac)
(A ac)
Min
Max
2 A @ 50 Hz
AUTO
19.5
20.5
2 A @ 60 Hz
AUTO
19.5
20.5
3 A @ 50 Hz
AUTO
29.3
30.7
3 A @ 60 Hz
AUTO
29.3
30.7
B-50
