DIGITAL MULTIMETER
SPECIFICATION
3. SPECIFICATIONS
Calibration is required once a year, to be carried out at a
temperature between 18°C and 28 °C (64 °F to 82°F) and
relative humidity below 75%.
3.1 GENERAL SPECIFICATIONS
3.1.1 The meter is devised with light and sound alarm to
prevent test leads misconnection.
3.1.2 Auto range and manual range options are available.
3.1.3 Overrange protection is provided for all ranges.
3.1.4 Maximum voltage between terminals and earth
ground: 1000V DC or rms AC
3.1.5 Operating altitude: max. 2000 meters (7000 ft.)
3.1.6 Display: LCD, 3 readings at the same time
3.1.7 Maximum value display: 3999 digits
3.1.8 Polarity indication: automatic; ‘-‘ for negative polarity.
3.1.9 Overrange indication: ‘0L’ or ‘-0L’
3.1.10 Sampling time: approx. 0.4 second per sample
3.1.11 Unit indication: function and unit.
3.1.12 Auto power off time: 30 min.
3.1.13 Specification of resettable fuse: F1 500mA/250V
3.1.14 Fuse protection: F2 10A/250V (quick acting).
3.1.15 Operating power : 1.5V×3 AAA batteries
3.1.16 Battery low indication: ‘ ’ on LCD
3.1.17 Temperature factor: < 0.1×Accuracy /
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DIGITAL MULTIMETER
SPECIFICATION
3.1.18 Operating temperature: 0 to 40 32°F to 104°F
3.1.19 Storage temperature: -10 to 50 10°F to 122°F
3.1.20 Dimension: 195×92×55mm
3.1.21 Weight: approximate 400g including batteries
3.2 TECHNICAL SPECIFICATIONS
Ambient temperature: 23±5 Relative humidity: < 75%
3.2.1 DC Voltage
Range
Resolution
Accuracy
400mV 0.1mV
4V 1mV
40V 10mV
400V 100mV
1000V 1V
± (0.7% of reading + 2 digits)
- Input Impedance: 10MΩ
- Overload protection:
400mV range: 250V DC or rms AC,
4V-1000V ranges: 1000V DC or 750V rms AC.
- Max. input voltage: 1000V DC or 750V rms AC
NOTE:
At small voltage range, unsteady readings will appear before
the test leads contact the circuit. This is normal because
the meter is highly sensitive. When the test leads contact
the circuit, the true reading will be shown.
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(1 pages)
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