TB 9-6625-174-24
APPENDIX B
PERFORMANCE TABLES
Greenlee, Model CM-950
Table B-129. Calibration Description.
Test instrument parameters
Performance specifications
DC VOLTAGE
Range: 0 to 600 V dc
Accuracy: 400 V range, (0.7% rdg + 0.2 V); 600 V range, (0.7% rdg + 2 V)
AC VOLTAGE
Range: 0 to 600 V ac
Accuracy: 50 to 500 Hz: 400 V range, (1.0% rdg + 0.5 V);
600 V range, (1.0% rdg + 5 V)
Range: 0 to 600 V1
PEAK HOLD
Accuracy: 50 to 500 Hz: (3.0% rdg + 15 dgts)
DC CURRENT
Range: 0 to 600 A ac
Accuracy2: 400 A range, (1.2% rdg + 0.5 A); 600 A range, (1.9% rdg + 7 A)
AC CURRENT
Range: 0 to 600 A ac
Accuracy2: 50 to 60 Hz: 400 A range, 0 to 320 A ac, (1.5% rdg + 0.5 A),
320 to 400 A ac, (3.1% rdg + 0.5 A); 600 A range, 400 to 600 A ac,
(2.0% rdg + 7 A); 61 to 400 Hz: 400 A range, 0 to 320 A ac,
(2.0% rdg + 0.5 A), 320 to 400 A ac, (3.6% rdg + 0.5 A);
600 A range, 400 to 600 A, 2.5% rdg + 7 A)
Range: 0 to 600 A ac3
PEAK HOLD
Accuracy: 50 to 400 Hz, (3.0% rdg + 15 dgts)
Range: 0 to 400 Ω
Accuracy: (1.0% rdg + 0.3 Ω)
Range: 0.020 to 0.400 kHz
Accuracy: (0.1% rdg + 0.002 kHz)
Sensitivity: 3 A rms
Accuracy not specified above 600 V p.
1
Accuracy specified at center of TI jaws. When conductor is not positioned at jaw center, add 1% to specified accuracy.
2
3 Accuracy not specified above 600 A p.
Table B-130. DC Voltage.
Calibrator output
Test instrument
Applied
Range
Limits (V dc)
(V dc)
(V dc)
Min
Max
120
400
119.0
121.0
280
400
277.8
282.2
360
400
357.3
362.7
-360
400
-362.7
-357.3
540
600
534
546
B-37
