- Features & Specification
Martindale PD440SX Proving Unit 440V AC
With Martindales unique CALCHECK feature.
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.
With all the benefits of the industry standard Martindale PD440 and PD690 proving units, the new S models come in an overmoulded low profile case with magnetic hanger. They are fast and easy to use, instantly supplying the full test voltage for both high and low impedance voltage indicators, test lamps and meters.
The SX Series have a unique CALCHECK feature making it easy to verify the insulation and low resistance ranges on 18th Edition multifunction testers, wherever you are working. In addition, the new SX models have stepped voltage LEDs with thresholds matched to most voltage indicators and two pole testers.
CALCHECK makes it easy to verify the insulation and low resistance ranges on 18th Edition multifunction instruments and single function insulation testers on-site, making it ideal for identifying potential calibration issues with test equipment prior to certifying a new wiring installation or carrying out a condition report. This is a valuable procedure recognised by electrical contractor assessment bodies to ensure reliable results and avoid unnecessary and expensive retests.
Martindale PD440SX Comes Supplied With:
- MG3 magnetic hanger
- 6 x 1.5V AA alkaline batteries
- Instruction manual
- Ideal for proving low and high impedance voltage indicators, test lamps and two pole testers
- Includes MG3 high strength magnetic hanger
- Colour coded for voltage output (440V and 690V)
- Tough overmoulded low profile design
- Long battery life with low battery indicator and auto power off
- CALCHECK Feature
Additional features PD440SX and PD690SX
- Unqiue CALCHECK feature for verifying insulation and low resistance ranges of installation testers
- Stepped voltage output matched to two pole tester thresholds
Which Martindale Proving Unit is right for me?
ISSWWW and Martindale Electric
Founded in 1928 and also owns Edgcumbe Instruments Metrohm® products, as well as the John Drummond Engineers range of test lamps. They are a British owned company, based in Watford, just 5 minutes from junction 5 of the M1.
Their product range helps electricians and maintenance engineers carry out portable appliance testing, check fixed wiring for 17th Edition and Part P testing, safely prove dead, and measure everything from light and sound levels to microwave leakage and power consumption.We are proud to be able to offer Martindale's products and services and have done so for many years.
|Martindale PD440SX Proving Unit Specification|
|Output voltage||440V nominal|
|Output frequency||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|
|Power||6 x 1.5V, AA alkaline batteries (IEC LR6, NEDA 15A)|
|Dimensions||150 x 80 x 35mm|
|Weight||350g approx. with batteries|
Orders requiring calibrationWhilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring
calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch
this in most cases should not add more than 24 hours to your delivery.
Bank/Public HolidaysPredicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.
*UK Mainland (Temporarily revised June 2020)
Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.
Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.
Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.
Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.
Because of the high cost of carriage, we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:
- Zones A & B - Mainland delivery rates apply.
- Zone C - Scottish Highlands (Charges are calculated at the checkout).
- Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
- Zone E - Northern Ireland (Charges are calculated at the checkout).
- Zone F - Republic of Ireland (Charges are calculated at the checkout).
All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.
International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at firstname.lastname@example.org
All export inquiries should be directed to the export division before placement of order.
If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA