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149 Series

149 Series

High Voltage Meter Series

  • 4½ digit LCD display
  • High input impedance
  • Positive and negative reading without
  • switching
  • Voltage coefficient compensated
  • Accuracy better than ±0.05%
  • Precision output for recorder or oscilloscope
  • 40kV hand probe supplied with 149-01 & -03
  • Rugged construction
Electrical Specification
149-01 & 149-03 only
Voltage Ranges 0 to 2kV dc, 20kV dc & 40kV dc.
Resolution 0.1V on 2kV range, 1V on 20kV range and 10V on 40kV range.
Accuracy ±0.1% ±2 digits on the 2kV, 20kV & 40kV ranges
HV Input Suppied with plug & 40kV hand held probe (with 2m of cable,see drawings).
149-02 & 149-04 only
Voltage Ranges 0 to 2kV dc, 20kV dc & 60kV dc.
Resolution 0.1V on 2kV range, 1V on 20kV range and 10V on 60kV range.
Accuracy ±0.1% ±2 digits on the 2kV, 20kV & 60kV ranges
HV Input Supplied with plug & 2m of screened 60kV cable assembly.
149-01 and 149-02 only
Input Resistance 10GΩ on all ranges
149-03 and 149-04 only
Input Resistance 100GΩ on all ranges
149 (all in the series)
Stability Better than 0.3% over 1 year.
Polarity Positive or negative, auto reading.
Protection Circuits protected against damage by external arcing, flashover etc
Recorder Output 10mV per kV (Source/sink capability up to 100μA.) Accuracy ±0.3% at 30kV (±0.5% at the extremes).
Environmental Specification
Operating Temperature   0 to +50 deg.C
Storage Temperature   -20 to +65 deg.C
Humidity (RH) <31°C
>30°C
80% maximum.decrease linearly to 50% at 40°C (non-condensing)
For indoor use only.