TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Ideal Industries, Model 61-744
Table B-80. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 600 V dc
Accuracy: (0.5% rdg + 2 dgts)
AC VOLTAGE
Range: 0 to 600 V ac
Accuracy: 50 to 500 Hz: 400 V range, (1.2% rdg + 5 dgts); 600 V range,
(1.5% rdg + 5 dgts)
AC CURRENT
Range: 0 to 600 A ac
Accuracy: 50 to 60 Hz, (1.7% rdg + 6 dgts); 60 to 400 Hz, (3.0% rdg + 6 dgts)
Range: 0 to 40 MΩ
Accuracy: 400 Ω to 400 kΩ ranges, (1.0% rdg + 4 dgts); 4 MΩ range, (1.5%
rdg + 4 dgts); 40 MΩ range, (3.0% rdg + 5 dgts)
Table B-81. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
120
400
119.2
120.8
280
400
278.4
281.6
360
400
358.0
362.0
-360
400
-362.0
-358.0
540
600
535
545
Table B-82. AC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V ac)
(V ac)
(V ac)
Min
Max
360 @ 50 Hz
400
355.2
364.8
360 @ 500 Hz
400
355.2
364.8
540 @ 50 Hz
600
527
553
540 @ 500 Hz
600
527
553
Table B-83. AC Current (≤500 A) (w/50 Turn Coil).
Calibrator output
Test instrument
Applied
Range
Limits (A dc)
(A ac)
(A ac)
Min
Max
0.72 @ 50 Hz
40
35.33
36.67
0.72 @ 60 Hz
40
35.33
36.67
0.72 @ 400 Hz
40
34.86
37.14
7.2 @ 50 Hz
400
353.3
366.7
7.2 @ 60 Hz
400
353.3
366.7
7.2 @ 400 Hz
400
348.6
371.4
B-23
