Martindale PD690SX Proving Unit

Includes: MG3 magnetic hanger, 6 x 1.5V AA alkaline batteries and instruction manual.

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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 PD690SX has all the capabilities of the standard PD690S proving unit plus a unique CALCHECK feature for verifying the performance of installation testers and 5 stepped voltage thresholds matched to common two pole tester thresholds.

Both the PD440SX and the PD690SX ramp output voltage down in a sequence lasting for a duration of 10s, before reducing output voltage to zero.

The CALCHECK feature may be used to check that a multifunction tester, insulation tester or continuity tester is maintaining ongoing accuracy between calibrations. There are two insulation test resistance values, 0.5MΩ and 1MΩ. There are also two continuity test resistance values, 0.5Ω and 1Ω.

The CALCHECK feature can be used as a regular check that instruments are not drifting between calibrations.

FEATURES

Safely proves the operation of voltage indicators and test lamps up to 690V.
Unique CALCHECK function for multifunction installation tests.
Individual LED indicators matched to voltage indicator thresholds.
Long battery life with low battery indicator.
Includes MAG3 high strength magnetic hanger.
Colour coded for voltage output.

Martindale PD Comparison

	PD690S	PD440SX	PD690SX
Maximum Voltage Output	690V AC	440V AC	690V AC.
LED Voltage Thresholds	690V	50V, 120V, 230V, 440V.	50V, 120V, 230V, 400V, 690V.
High Voltage LED	✔	Multiple.	Multiple.
Low Battery LED	✔	✔	✔
High/Low Z Compatible	✔	✔	✔
CALCHECK Resistance Values		✔	✔
Colour Coded to Match Voltage Indicators	✔	✔	✔
Suitable for	Multimeters, voltage testers & Drummond test lamps.	Multimeters, voltage testers & Drummond test lamps.	Multimeters, voltage testers & Drummond test lamps.

Martindale PD690SX Specifications

Output voltage	690/230/100/50 V nominal.
Output frequency	50 Hz nominal.
Output loading	See datasheet.
CALCHECK insulation test resistance	0.5 MΩ (max test voltage 1 kV) 1.0 MΩ (max test voltage 1 kV).
CALCHECK continuity test resistance	0.5 Ω (max test current 200 mA) 1.0 Ω (max test current 200 mA).
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 1.5 V, AA alkaline batteries (IEC LR6, NEDA 15A).
Dimensions	150 x 80 x 35 mm.
Weight	350g approx. with batteries.
Martindale PD690SX warranty	Two-years.