Industrial multimeter CMM-40 was designed for the purpose of measurements of AC/DC voltage, AC/DC current, resistance, capacitance, frequency (electrical and electronic), duty cycle, temperature and also for testing diodes and continuity.
The most important features of CMM-40 are:
- autoranging/manual range selection,
- „DATA HOLD” function, for holding measured values,
- „REL” function, which allows you to make measurements relative to a stored reference value,
- „MAX/MIN” function,
- „PEAK HOLD” function,
- memory for 2,000 measurement results,
- continuity test with acoustic signalling (beeper),
- „AUTO-OFF” function,
- display 4¾ digits (40,000 max),
- double molded, waterproof casing.
Frequency measurement (electronic):
Range Resolution Accuracy
40.000 Hz 0.001 Hz ±(0.1% m.v. + 1 digit)
400.00 Hz 0.01 Hz
4.0000 kHz 0.0001 kHz
40.000 kHz 0.001 kHz
400.00 kHz 0.01 kHz
4.0000 MHz 0.0001 MHz
40.000 MHz 0.001 MHz
100.00 MHz 0.01 MHz not speccified
- Sensitivity: 0.8 V rms min. @ 20% to 80% duty cycle and <100 kHz; 5 V rms min @ 20% to 80% duty cycle and > 100 kHz
Frequency measurement (electrical):
Range Resolution Accuracy
40.00 Hz to 10.000 kHz 0.01 Hz to 0.001 kHz ± 0.5% m.v.
Duty cycle measurement:
Range Resolution Accuracy
0.10 to 99.9% 0.01% ±(1.2% m.v. + 2 digits)
- pulse width: 100μs to 100 ms
- frequency width: 5 Hz to 150 kHz.
Temperature measurement:
Range Resolution Accuracy
-50.0°C to +1,200.0°C 0.1°C ±(1% m.v. + 2.5°C)
-58.0°F to +2,192.0°F 0.1°F ±(1% m.v. + 4.5°F)
DC voltage measurement:
Range Resolution Accuracy
400.0 mV 0.01 mV ±(0.06% m.v. + 4 digits)
4.0000 V 0.0001 V
40.000 V 0.001 V
400.00 V 0.01 V
1000.0 V 0.1 V ±(0.1% w.m. + 5 digits)
AC voltage measurement (True RMS):
Range Resolution Accuracy
400.00 mV 0.01 mV ±(1% m.v. + 40 digits)
4.0000 V 0.0001 V ±(1% m.v. + 30 digits)
40.000 V 0.001 V
400.00 V 0.01 V
1000.0 V 0.1 V
- frequency range: 50 to 1000 Hz.
AC/DC current measurement (True RMS):
Range Resolution Accuracy
400.00 μA 0.01 μA for DC ±(1.0% m.v. + 3 digits)
for AC ±(1.5% m.v. + 30 digits)
4,000.0 μA 0.1 μA
40.000 mA 0.001 mA
400.00 mA 0.01 mA
10.000 A 0.001 A
- 20 A: 30 sec max with reduced accuracy.
Resistance measurement:
Range Resolution Accuracy
400.00 Ω 0.01 Ω ±(0.3% m.v. + 9 digits)
4.0000 kΩ 0.0001 kΩ ±(0.3% m.v. + 4 digits)
40.000 kΩ 0.001 kΩ
400.00 kΩ 0.01 kΩ
4.0000 MΩ 0.0001 MΩ
40.000 MΩ 0.001 MΩ ±(2.0% m.v. + 10 digits)
Capacitance measurement:
Range Resolution Accuracy
40.000 nF 0.001 nF ±(5.0% m.v. + 7 digits)
400.00 nF 0.01 nF
4.0000 μF 0.0001 μF ±(3.0% m.v. + 5 digits)
40.000 μF 0.001 μF
400.00 μF 0.01 μF
4000.0 μF 0.1 μF ±(5.0% m.v. + 5 digits)
40.000 mF 0.001 mF
Other technical data:
- power supply: 9 V battery type 6LR61
- diode test: I=0.9 mA, U0 = 2.8 V DC
- continuity test: I<0.35 mA, sound signal for R<35 Ω
- over range indication: 0L displayed
- crest factor: ≤ 3 at full scale up to 500 V; decreasing linearly to ≤ 1.5 at 1,000 V
- PEAK: captures peaks >1 ms
- sampling rate: 2 times per second
- input impedance: 10 MΩ (V DC), 9 MΩ (V AC)
- display: 40,000 counts backlit LCD with bargraph, 4¾ digits
- store capacitance: 2,000
- dimensions: 7.36" x 3.19" x 2.17" / 187 x 81 x 55 mm
- weight: 0.75 lbs / 342 g
- fuses: mA, µA range: 0.5 A/1,000 V ceramic fast blow; A range: 10 A/1,000 V ceramic fast blow
- auto power OFF: 15 min.
- accordance with following standards: EN 61010 - 1:2004, EN 61010 - 2 - 032
Electric security:
- type of insulation: double, according to EN 61010 - 1 and IEC 61557
- measurement category: CAT III 1000 V acc. to EN 61010 - 1:2004
- protection class acc. to EN 60529: IP67
Rated operational conditions:
- operating temperature: 32F to 104F / 0 to +40°C
- storage temperature: -4F to 140F / -20 to +60°C
- operating humidity: max 80% up to 87°F (31°C); decreasing linearly to 50% at 104°F (40°C)
- operating altitude: max 6,562 ft / 2,000 m
- „m.v.”- measured value
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Datasheet:
CMM-40 Datasheet
Package Include:
1x Sonel Industrial Digital multimeter CMM-40