Martindale PD230SRD – 230V AC/DC Proving Unit with 3 ranges

  • Suitable for use in proving applications up to 230V
  • Switchable AC / DC output mode via push button
  • Stepped voltage output matched to two-pole tester thresholds
  • Compatible with S-series magnetic hanger
  • Ideal for proving indicators and measurement devices up to 230V AC or DC in domestic and commercial applications

EAN: 5036162188671 SKU: MARPD230SRD Category:


Safe electrical working requires the use of a voltage indicator that has been proven with a suitable proving device before and after use to ensure the instrument is working correctly in accordance with the Electricity at Work Regulations.

The PD230SRD is fast and easy to use, instantly supplying the full test voltage for both high and low impedance voltage indicators, test lamps and meters. It comes complete with an over moulded low-profile case with magnetic hanger.


Output voltage 230V, 120V, 50V nominal
Output frequency DC or 50Hz nominal
Output loading See datasheet
Temperature (Operating & Storage) -10°C to 40°C
Humidity (Operating & Storage) max. 70% R.H.
Altitude up to 2000m
Pollution Degree 2
Power 6 x 1.5V, AA alkaline batteries (IEC LR6, NEDA 15A)
Dimensions 150 x 80 x 35mm
Weight 350g approx. with batteries



Maximum Voltage Output230V440V440V
LED Voltage Thresholds230V, 120V, 50V440V440V
AC output mode
DC output mode
Low Battery LED
High/Low Z Compatible
Colour-coded to match voltage indicators
Suitable forMultimeters & voltage testers (>9kΩ)Multimeters, multifunction testers, 4-500V voltage
testers & Drummond test lamps
Multimeters, multifunction testers, 4-500V voltage
testers & Drummond test lamps