Martindale PD690SX 690V Proving Unit with CALCHECK

The Martindale PD690SX 690V Proving Unit with CALCHECK can be used to prove the correct functionality of multimeters, voltage indicators, two-pole voltage testers, and Drummond test lamps as well as some of the functions present on 18^th Edition multifunction testers. It is ideal for maintaining compliance with Electricity at Work Regulations.

The Martindale PD690SX 690V Proving Unit’s CALCHECK feature allows it to verify the insulation and low-resistance ranges on 18^th Edition multifunction testers. It can be used to identify potential calibration issues present in electrical test equipment, helping to prevent errors when carrying out condition reports and certifying new wiring installations. This feature can be used to ensure reliable results thereby limiting the need for costly retests and is highly valued by electrical contractor assessment bodies.

Similarly, the Martindale PD690SX 690V Proving Unit’s stepped voltage outputs (690/230/100/50V AC) can also be used to identify calibration issues in voltage testers. The stepped voltages correspond with the LED voltage thresholds on a majority of two-pole testers. Each of the Martindale PD690SX 690V Proving Unit’s voltage outputs is indicated by a dedicated LED.

The Martindale PD690SX 690V Proving Unit’s maximum voltage output is 690V AC and it is colour-coded to indicate this; distinguishing it from the 440V models in Martindale’s series of PDS and PDSX Proving Units.

Additionally, the Martindale PD690SX 690V Proving Unit with CALCHECK features a low-battery indicator; its long battery life is preserved by the Auto Power Off function. It is housed in a tough, low-profile, over-moulded case and is supplied with a detachable, high-strength MG3 magnetic hanger.

The Martindale PD690SX 690V Proving Unit with CALCHECK is a small, lightweight, rugged instrument suitable for contractors and maintenance teams requiring a tool to verify the performance of voltage testers, test lamps, and multifunction testers on-site.

Martindale PD690SX 690V Proving Unit with CALCHECK Key Features  

• Prove multimeters, voltage indicators, two-pole voltage testers, Drummond test lamps, and some of the functions on 18^th Edition multifunction testers
• Maintain compliance with Electricity at Work Regulations
• CALCHECK: verify the insulation and low-resistance ranges on 18^th Edition multifunction testers and detect calibration issues
• Stepped voltage outputs: 690/230/100/50V AC
• Stepped voltages can be used to identify calibration issues in voltage testers
• Stepped voltages correspond with the LED voltage thresholds on a majority of two-pole testers
• Each of the voltage outputs is indicated by a dedicated LED
• Colour coded to indicate that the maximum voltage output is 690V AC
• Low battery indicator
• Long battery life
• Auto Power Off function
• Tough, low-profile, over-moulded case
• Detachable, high-strength MG3 magnetic hanger
• Small, lightweight, rugged proving instrument
• Suitable for contractors and maintenance teams
• Verify the performance of voltage testers, test lamps, and multifunction testers on-site

What’s Included?

• Martindale PD690SX 690V Proving Unit with CALCHECK
• Martindale MG3 Magnetic Hanger
• 6 x 1.5V AA Alkaline Batteries
• Instruction Manual

Martindale PDS and PDSX Proving Units Comparison Chart