TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Omega, Model HHM590 Continued
Table B-234. AC Current (≤1000 A) (w/50 Turn Coil).
Test instrument1
Calibrator output
Ammeter calibrator
Applied
Range
Range
Limits (A ac)
(V ac)
(A ac)
(A ac)
Min
Max
1.26 @ 40 Hz
20
700
607.4
652.6
1.26 @ 50 Hz
20
700
620.1
639.9
1.26 @ 60 Hz
20
700
620.1
639.9
1.26 @ 500 Hz
20
700
607.4
652.6
1.8 @ 50 Hz
20
700
878
922
1.8 @ 60 Hz
20
700
878
922
Ensure conductor is at center of TI jaws.
1
Table B-235. Resistance.
Calibrator output
Test instrument
Limits (Ω)
Applied
Range
(Ω)
(Ω)
Min
Max
190
200
-1.305% (187.5)
+1.305% (192.5)
190 k
200 k
-1.305% (187.5 k)
+1.305% (192.5 k)
B-67
