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3. Technical specification
3.1 General specification
This meter has been produced to comply with category II requirements under IEC publication 1010-1 "Safety requirements for
electrical equipment for measuring, monitoring and laboratory use". This standard of safety can only be guaranteed if the
maximum and minimum figures specified in section 2.2 are observed.
Display : 33⁄4 digit 4000 count LCD display with a 42-segment analog bargraph display. Higher resolution of up to 9999 in
frequency range.
Polarity indication : Automatic, positive if nothing indicated, negative indicated
Low battery voltage indication: "
" shown if the voltage from the batteries drops below the operating voltage.
Range overrun : Highest digit flashes.
Display update rate Two per second for digital display,
20 per second for bargraph display.
1 per second for frequency measurements.
Automatic power off : Approx. 30 minutes after the function switch was last turned.
3.2 Ambient conditions
Maximum altitude : 2000m
Installation category : IEC1010 1000V category II
600V category III
Pollution degree : 2
Operating temperature : 0 to +50°C, 0 to 80% RH.
Storage temperature : –20 to +60°C, 0 to 80% RH (batteries not fitted)
Temperature coefficient : 0.15 x specified accuracy/°C, <19°C or >28°C
Supply required : Two 1.5V batteries (IEC LR03, AM4 or AAA)
Battery life (alkaline) : Typically 1000 hours
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