TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Ideal Industries, Model 61-720
Table B-69. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 600 V dc
Accuracy: (0.5% rdg + 1 dgt)
AC VOLTAGE
Range: 0 to 600 V ac
Accuracy: 40 to 50 Hz and 60 to 500 Hz, (2.0% rdg + 4 dgts); 50 to 60 Hz,
(1.2% rdg + 4 dgts)
AC CURRENT
Range: 0 to 1000 A ac
Accuracy: 40 to 50 Hz and 60 to 500 Hz, (3.5% rdg + 5 dgts); 50 to 60 Hz,
(1.5% rdg + 4 dgts)
Range: 0 to 200 kΩ
Accuracy: (1.2% rdg + 2 dgts)
Table B-70. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
1.8
2
1.790
1.810
60
200
59.6
60.4
140
200
139.2
140.8
180
200
179.0
181.0
-180
200
-181.0
-179.0
540
600
536
544
Table B-71. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
180 @ 40 Hz
200
176.0
184.0
180 @ 50 Hz
200
177.4
182.6
180 @ 60 Hz
200
177.4
182.6
180 @ 500 Hz
200
176.0
184.0
540 @ 40 Hz
600
525
555
540 @ 50 Hz
600
530
550
540 @ 60 Hz
600
530
550
540 @ 500 Hz
600
525
555
B-20
