Display:
3½ 17mm large LCD, maximum reading 3200 with function and units
sign annunciators. Display update rate 2 times per second, nominal.
Analogue bar graph:
34 segments with measurements 12 times per second
Polarity Indication:
Automatic, positive implied, negative indicated.
Overrange Indication:
(OL) is displayed.
Low Battery Indication:
The "
" is displayed when the battery voltage drops
below accurate operating level
Auto Power Off:
Clampmeter automatically shuts down after approx 10 minutes
of inactivity.
Operating Environment:
0°C to 50°C at <70% Relative Humidity.
Storage Environment:
-20°C to 60°C at <80% Relative Humidity with battery
removed from meter.
Temperature Coefficient:
0.1 X (specified accuracy) / °C (<18°C or >28°C)
Altitude:
6561.7 Feet (2000M)
Power:
Standard 9-volt battery, NEDA 1604, IEC 6F22, JIS 006P PP3.
Battery Life:
300 hours typical with alkaline battery.
Jaw Opening Capability:
57mm conductor, 70 X 18mm bus bar.
Size (H x W x D):
10.9 x 4.0 x 1.9 inches (277 x 102 x 49mm)
Weight: Approx:
18.9 OZ/ 540grams (including battery).
Specification
CM56 Clamp Meter
* Accuracy is given as ± ([% of r[number of least significant digits]) at
18°C to 28°C with relative humidity up to 70%.
Resistance
Overload Protection: 500V DC or RMS AC
Diode Test
Overload Protection: 500V DC or RMS AC
Frequency
Range:
320Hz. 3200Hz, 32KHz
Resoloution:
0.1Hz
Accuracy:
±(1.0% rdg + 4dgts) on all ranges
Sensitivity:
3.5V rms min at >20% and <80% duty cycle
Effect Reading:
More than 100 digits at pulse width >2μsec
Overload Protection:
500V DC or RMS AC
DC Volts
Overload protection: 1000V DC / 750VRMS on all other range
Range
Accuracy
320
Ω
3.2k
Ω
32k
Ω
320k
Ω
3.2M
Ω
30M
Ω
0.1
Ω
1
Ω
10
Ω
100
Ω
1k
Ω
10k
Ω
±(1.0% rdg+3d)
±(1.0% rdg+3d)
±(1.0% rdg+3d)
±(1.0% rdg+3d)
±(1.5% rdg+3d)
±(2.5% rdg+5d)
<0.7mA
<0.13mA
<13μA
<1.3μA
<0.13μA
<0.13μA
Range
Resolution
Accuracy
Test Current
Open Circuit
Volts
3.2V
1mV
±(10% rdg + 2d)
0.6mA
3.0VDC typical
Test Current
Resoiution
Range
Resolution
Accuracy
Input Impedance
320mV
3.2V
32V
320V
1000V
100μV
1mV
10mV
100mV
1V
±(0.5% rdg +1d)
±(0.5% rdg +1d)
±(0.5% rdg +1d)
±(0.5% rdg +1d)
±(0.5% rdg +1d)
>1000M
Ω
11M
Ω
10M
Ω
10M
Ω
10M
Ω
AC Volts
(Average sensing RMS indicating)
Frequency Response: 50Hz to 300Hz
Overload protection: 1000V DC or 750V AC rms
AC Current
(Average sensing RMS indicating)
Overload Protection: 1200A for 60 seconds Maximum
Continuity Test
Overload Protection: 500V DC or AC rms
Range
Resolution
Accuracy
Input Impedance
3.2V
32V
320V
750V
1mV
10mV
100mV
1V
±(1.5% rdg+4d)
±(1.5% rdg +1d)
±(1.5% rdg +1d)
±(1.5% rdg +1d)
11M
Ω
/ 20PF
10M
Ω
/ 20PF
10M
Ω
/ 20PF
10M
Ω
/ 20PF
Range
Resolution
Accuracy
32A
320A
1000A
10mA
100mA
1A
0-600A±(1.5% rdg+5d)50-60Hz
>600A±(2.0% rdg+5d)50-60Hz
0-600A±(3.0%rdg+5d)61-400Hz
>600A±(3.5%rdg+5d)61-400Hz
Range
Audible Threshold
Response Time
Test Current
320
Ω
Less than 20
Ω
Approx. 500ms
<0.7mA
G
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Other products from Martindale:
Martindale Electric Company Limited
Metrohm House, Penfold Trading Estate, Imperial Way, Watford, WD24 4YY, UK.
Tel: +44(0)1923 441717 Fax: +44 (0)1923 446900
E-mail: [email protected]
Website: www.martindale-electric.co.uk
© Martindale Electric Company Ltd. 2010
