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Martindale PD690S 690V Proving Unit

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MARPD690S
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The Martindale PD690S Proving Unit can be used to ensure compliance with Electricity at Work Regulations: it is suitable for proving multimeters, high- and low-impedance voltage indicators, two-pole testers, and Drummond test lamps before and after use to ensure they are functioning correctly.

This unit has a single voltage output of 690V AC: the full voltage is supplied on contact with the instrument-under-investigation. The Martindale PD690S Proving Unit is colour coded to indicate that it has a voltage output of 690V AC, distinguishing it from the 440V models in Martindale’s series of PDS and PDSX Proving Units.

The Martindale PD690S Proving Unit is housed in a tough, low-profile, over-moulded case with a detachable, high-strength MG3 magnetic hanger. It is a small and lightweight instrument with a long battery life. The Auto Power Off function is designed to preserve the Martindale PD690S Proving Unit’s power, whilst its low battery indicator alerts the user when the batteries require attention.

The Martindale PD690S Proving Unit is an alternative to the industry-standard Martindale PD690 Proving Unit. It is ideal for contractors and maintenance teams requiring a tool to prove multimeters, test lamps, two-pole testers and voltage indicators quickly, simply and safely.

Martindale PD690S 690V Proving Unit Key Features

  • Maintain compliance with Electricity at Work Regulations
  • Prove multimeters, high- and low-impedance voltage indicators, two-pole testers, and Drummond test lamps
  • Single voltage output: 690V AC
  • The full voltage is supplied on contact with the instrument-under-investigation
  • Colour coded to indicate a voltage output of 690V AC
  • Part of Martindale’s PDS and PDSX series of Proving Units
  • Tough, low-profile, over-moulded case
  • Detachable, high-strength MG3 magnetic hanger
  • Small and lightweight
  • Long battery life
  • Auto Power Off function
  • Low battery indicator
  • An alternative to the industry-standard Martindale PD690 Proving Unit
  • Ideal for contractors and maintenance teams
  • Prove multimeters, test lamps, two-pole testers and voltage indicators quickly, simply and safely

What’s Included?

  • Martindale PD690S 690V Proving Unit
  • Martindale MG3 Magnetic Hanger
  • 6 x 1.5V AA Alkaline Batteries
  • Instruction Manual

Martindale PDS and PDSX Proving Units Comparison Chart 

PD440S PD440SX PD690S PD690SX
Maximum Voltage Output 440V AC 440V AC 690V AC 690V AC
LED Voltage Thresholds 440V 50V, 120V, 230V, 440V 690V 50V, 120V, 230V, 400V, 690V
High Voltage LED Yes Multiple Yes Multiple
Low Battery LED Yes Yes Yes Yes
High/Low Z compatible Yes Yes Yes Yes
CALCHECK resistance values No Yes No Yes
Colour coded to match voltage indicators Yes Yes Yes Yes
Suitable for Multimeters, voltage testers & Drummond test lamps Multimeters, voltage testers & Drummond test lamps Multimeters, voltage testers & Drummond test lamps Multimeters, voltage testers & Drummond test lamps

Martindale PDS & PDSX Proving Units Technical Specifications

Function PD440S PD440SX PD690S PD690SX
Electrical 
Output voltage 440V nominal 440/230/100/50V nominal 690V nominal 690/230/100/50V nominal
Output frequency 50Hz nominal 50Hz nominal 50Hz nominal 50Hz nominal
Output loading See the typical output voltage vs. loading graph in the datasheet.
Environmental
Temperature & Humidity (Operating & Storage) -10°C to 40°C at max. 70% R.H.
Altitude up to 2000m
Pollution Degree 2
General
Power 6 x 1.5V, AA alkaline batteries (IEC LR6, NEDA 15A)
Dimensions 150 x 80 x 35mm
Weight 350g approx. with batteries
CALCHECK
Insulation test resistance nominal values - 0.5MΩ (max test voltage 1kV) - 0.5MΩ (max test voltage 1kV)
1.0MΩ (max test voltage 1kV) 1.0MΩ (max test voltage 1kV)
Continuity test resistance nominal values - 0.5Ω (max test current 200mA) - 0.5Ω (max test current 200mA)
1.0Ω (max test current 200mA) 1.0Ω (max test current 200mA)
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Additional Information
SKU MARPD690S
Manufacturer Part Code MARPD690S

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