Martindale PD690 Proving Unit

The PD690 proving unit produces 690V AC/DC to enable voltage indicators to be fully checked.

This unit is suitable for indicators with 230V and 415 / 440V AC or DC detection ranges, such as the Martindale VI13700G.  The PD690 is one of the few proving units to check indicators with ranges above 250V.

The PD690 can also check Drummond and other filament lamps due to its output being sufficient to illuminate the bulb.

Specification:-

• Output Voltage : 230V into a 5kOhm load/700V into a 700kOhm load
• Output Loading : > 4kOhm
• Operating Temperature : -10 to 40C at max 70% RH
• Dimensions 143 x 84 x 50mm
• Weight : 270g without batteries
• Batteries : 6 x LT6 (MN1500) 1.5V alkaline batteries or equivalent (not included)