DVM990BL VELLEMAN
4
2.2. FUNCTION AND RANGE SELECTOR
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This meter is a portable professional measuring instrument with a large
LCD and back light for easy reading.
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This meter has built-in protection to prevent the test leads being
connected incorrectly. The input socket for the red test lead senses the
correct functions and ranges. When the rotary switch cannot be turned,
do not force it as it means that the selected range isn’t suitable for what
the red lead is connected to. Pull out the red lead and then select the
required range. This provides protection for the meter in order to avoid
damage through incorrect operation.
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This meter has a data hold function.
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A rotary switch is used to select the functions and the ranges.
3. SPECIFICATIONS
Accuracy is specified for a period of one year after calibration and at
18°C to 28°C (64°F to 82°F) with relative humidity to 75%.
3.1. GENERAL
SPECIFICATIONS
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30 ranges of functions.
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Over range protection for all ranges.
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Operating altitude: 2000m max.
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Max. voltage between terminals and earth: 1000V DC or AC (peak
value)
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Fuse protection: F1 200mA/250V F2 10A/250V
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Display: 28mm LCD, word is 28mm high
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Max display value: 1999 (3 1/2)
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Polarity indication: "-" indicates negative polarity
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Over range indication: displays "1" or "-1"
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Sampling time: approx. 0.4 seconds
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Power supply: 9V battery, 6F22 or NEDA 1604
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Low battery indication: "
" displayed
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Temperature factor: < 0.1 x accuracy / °C
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Operating temperature: 0°C to 40°C (32°F to 104°F)
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Storage temperature: -10°C to 50°C (10°F to 122°F)
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Dimensions: 191 x 82 x 36mm (without holster)
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Weight: approx. 280g (including battery)
