13
CMT-90
Accuracy
Refer to “Specifications” for operating conditions and temperature coefficient.
Accuracy is specified as follows: ± (a percentage of the r a fixed amount) at
23 °C ± 5 °C (73.4 °F ± 9 °F), 0% to 80% relative humidity.
Accuracy for AC measurements is specified for input crest factors that do not exceed
the values in the “Maximum Input Crest Factor” table on this page.
Accuracy Table
Characteristic
Range
Accuracy
Frequency
Range
AC Current
0.9 to 170.0 A
± (1.9% + 1 A)
50 to 60 Hz
170.1 to 600.0 A
± (1.9% + 2A)
AC Voltage*
1.3 to 999.9 V
± (1.5% + 0.3 V)
50 to 500 Hz
DC Voltage*
2.1 to 999.9 V
± (1.0% + 0.2 V)
N/A
-0.7 to -999.9 V
± (1.0% + 0.4 V)
Resistance**
0 to 999 Ω
± (2.0% + 4 Ω)
N/A
1.000 to 9.999 kΩ
± (2.0% + 0.004 kΩ)
Diode Test
0.4 to 0.8 V
± (1.0% + 0.2 V)
N/A
* Input impedance: 4 kΩ nominal at voltages up to 30 V; increases with voltage
to approximately 375 kΩ at 1000 V
** Open circuit voltage: 1.5 V maximum
Maximum Input Crest Factor
Maximum Crest Factor
Current Range
Voltage Range
1.414
0.9 to 6.0 A
1.3 to 3.0 V
3
6.1 to 20.0 A
3.1 to 10.0 V
5
20.1 to 500.0 A
10.1 to 250.0 V
Linear decrease from 5 to 1.5
over range shown
500.1 to 600.0 A
250.1 to 999.9 V
Continuity
Tone on: Circuit resistance is ≤ 25 Ω (approximately).
Tone off: Circuit resistance is ≥ 400 Ω (approximately).
Содержание Greenlee CMT-90
Страница 11: ...11 CMT 90 Typical Measurements Voltage Measurement Resistance Measurement ...
Страница 12: ...12 Typical Measurements Continuity Check Diode Measurement Forward Bias Reverse Bias ...
Страница 26: ...26 Mediciones más comunes Medición de tensión Medición de resistencia ...
Страница 32: ...32 ...
Страница 42: ...42 Mesures types Mesure de la tension Mesure de la résistance ...
