CMM-40 Industrial Multimeter WMXXCMM40

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 2000 measurement resultS,
• continuity test with acoustic signalling (beeper),
• „AUTO-OFF” function,
• display 4¾ digits (40000 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…10,000 kHz	0,01 Hz…0,001 kHz	± 0,5% m.v.

• sensitivity: 1 V rms

Duty cycle measurement

Range	Resolution	Accuracy
0,10…99,9%	0,01%	±(1,2% m.v. + 2 digits)

• pulse width: 100μs – 100 ms,
• frequency width: 5 Hz…150 kHz.

Temperature measurement

Range	Resolution	Accuracy
-50,0°C…+1200,0°C	0,1°C	±(1% m.v. + 2,5°C)
-58,0°F…+2192,0°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 cyfr)

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…1000 Hz.

AC/DC current measurement (True RMS)

Range	Resolution	Accuracy
400,00 μA	0,01 μA	dla DC ±(1,0% m.v. + 3 digits)dla 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 1000 V
• PEAK: captures peaks >1 ms
• sampling rate: 2 times per second
• input impedance: 10 MΩ (V DC), 9 MΩ (V AC)
• display: 40000 counts backlit LCD with bargraph, 4¾ digits
• store capacitance: 2000
• dimensions: 187 x 81 x 55 mm
• weight: 342 g
• fuses: mA, µA range: 0,5 A/1000 V ceramic fast blow; A range: 10 A/1000 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: 0…+40°C
• storage temperature: -20…+60°C
• operating humidity: max 80% up to 87°F (31°C); decreasing linearly to 50% at 104°F (40°C)
• operating altitude: max 2000 m

„m.v.”- measured value