Proving Unit safely and simply proves the operation of voltage indicators and test lamps up to 440V A Voltage Indicator should always be tested against a live source or proving unit to confirm the long term reliability of results given whilst testing live circuits. Proving Unit Kits are a combination of proving units and voltage indicators, similar to the Martindale VIPD150 kit where both devices are carried in a dedicated pouch for easy transportation. Measuring voltages from 50V to 690V, it has a versatile range for several voltage testers. Why Choose RS for a Martindale Proving Unit? The Martindale PD690S Proving Unit can be used to prove the functionality of the Martindale VT12 Two-Pole Voltage & Continuity Tester safely and simply. The Martindale PD690S Proving Unit delivers a test voltage of up to 690V AC/DC and a long battery life. It features a tough, overmoulded low-profile design with a low battery indicator. The latest design complies with the new standard relating to 2 pole voltage indicator, BS EN61243-3 and the requirements of GS38 Edition 4 2015. The latest version of BS EN61243-3:2010 came fully in to force in May 2013 and all voltage indicators on the British & European market should comply. The VI13800 replaces the industry standard VI13700.

Martindale have replaced the fuse in favour of a high wattage resistor in the probe that limits the current in the event of a damaged cable. This allows for a reduction of the flow under a potential fault making the device much safer to use. It is interesting to point out that many competitors do not have any kind of protection within their probes. The Martindale VIPD150-S contains the VI-15000 voltage indicator and the PD690S proving device, enabling you to comply with health and safety recommendations for safe working. Compact and lightweight, the new proving devices can easily be carried around in an electricians’ tool kit so test instruments can be proved before and after working on any circuit as advocated by the Electrical Safety Council. A safe isolation set including a Martindale VI13800 Voltage Indicator, PD440S Proving Unit, and TC71 Combination Carry CaseThe VI13800 is an essential tool for proving electrical circuits are dead before carrying out maintenance and installation work in accordance with safe isolation procedures. The VI13800 ensures safety through simplicity, with no ranges, switches or batteries, reducing the risk of an incorrect reading. Based on the industry endorsed VI3800, the new CATIV design not only provides improved protection against voltage transients, but also includes a high wattage resistor that will limit the current in the event of damage to the cable in accordance with BS EN61243-3. The protection is built in where it’s needed, in the handheld probe assembly rather than just in the instrument providing superior protection for the user to other testers.

The VI13800 provides instant visual AC and DC voltage indication in four stages from 50V to 400V. The bright long life LED indicators give clear and immediate display of the voltage level range. It has retractable probes, heavy duty finger guards and a two layer double insulated cable with a white inner core to give clear indication of damage that might compromise the user’s safety. The new VI-15000 has a 1000V CATIV safety rating and LED indication for AC/DC voltages from 50V to 690V and above, ensuring compliance with health and safety recommendations for safe working in all BS EN61010 installation categories. It’s the simplest and most reliable way to ensure circuits have been de-energised and properly isolated prior to maintenance and modifications. Along with GS38 safety compliant tips the kit now includes a voltage detector which complies with the latest BS EN61243-3:2010 standard for two pole indicators which came fully into force in May 2013. In addition to all the benefits of the industry standard Martindale PD440 and PD690 proving units, the S models feature a tough overmoulded low profile case and come with an MG3 magnetic hanger (excluding kits). They are fast and easy to use, instantly supplying the test voltage for both high and low impedance voltage indicators, test lamps and meters.The-PD440’s designed to prove the working of voltage detectors used on single and 3 phase supplies. Suitable for both domestic and industrial use, the Martindale VT12 Two-Pole Voltage & Continuity Tester is constructed in accordance with the latest safety standards and features GS38-compliant probe caps. It automatically detects and indicates AC/DC voltage between 12V and 690V. The voltage range is displayed on the LED scale. The Martindale VT12 Two-Pole Voltage & Continuity Tester also offers continuity testing with optical and acoustic indication up to 200kΩ.

The indicator contains bright neon lights with extended life which give a fast effective display of voltage level range. Martindale have designed the instrument with safety in mind with double insulated test leads and finger guards to prevent the possibility of slipping onto live circuits. It is good practice to match the output voltage of the proving unit with the voltage range of the instrument to be proved. Please follow this link for more information about the Martindale VT12 Two-Pole Voltage & Continuity Tester. Martindale PD690S Proving Unit Overview As we know the proving units are portable making them easy to transport and use in many environments, however, there are many varieties of proving units to accommodate the vast voltage ranges of electrical equipment. For example, low voltage proving units such as the Martindale PD240 can test voltages up to 240V, great for residential appliances. If you need something capable of testing high voltage testers, then the Martindale PD690 kit is a great option by testing voltages from 12V to 700V and with a proving unit accompanied by a voltage tester in a neat carry pouch. The Martindale VT12PD-S Voltage Tester & Proving Unit Kit can be used to maintain compliance with safe isolation and proving dead procedures. To this end it includes:The Martindale VIPD138-S Voltage Indicator & Proving Unit Kit is a reliable, practical, and durable safe isolation set. Martindale VIPD138-S Voltage Indicator & Proving Unit Kit Key Features Martindale are currently the market leaders in Voltage Detection and the latest update to the VIPD Kit continues their reputation for highly accurate test equipment.

The large digit LCD display of the VT28 gives actual voltage readings in addition to the LED voltage ranges. The AC/DC voltage detection, continuity and phase rotation functions all have bright LED indication. Auto power-off ensures a long battery lifetime. Nothing is more dangerous than trusting a defective voltage indicator to test for a dead circuit. Safe electrical work requires the use of a voltage indicator that has been proved with a proving device before and after use.Based on the industry endorsed VI-13800, the new CAT IV design not only provides improved protection against voltage transients, but also includes a high wattage resistor that will limit the current in the event of damage to the cable in accordance with BS EN61243-3. The protection is built in where it’s needed, in the handheld probe assembly rather than just in the instrument providing superior protection for the user to other testers. In addition to the benefits of the industry standard Martindale PD440 and PD690 proving units, the S models feature a tough overmoulded low profile case and come with an MG3 magnetic hanger (excluding kits). They are fast and easy to use, instantly supplying the test voltage for both high and low impedance voltage indicators, test lamps and meters. On completion of the high voltage test, a low resistance appears across the terminals to verify the continuity function of two pole testers. The Martindale PD690S is a direct replacement for the industry standard PD690. Its voltage output is matched to the VI-15000, MTL15 Drummond test lamp and all other 690V voltage indicators and two pole testers including the VT12, VT25 and VT28. The Martindale VT28 is a tough, compact two pole tester with both LCD and LED displays for measuring AC/DC voltages from 12V to 690V. Additional capabilities include continuity and phase rotation testing plus single pole voltage detection. The PD430 adds a lower voltage range of 50V. This is because 50V can be lethal so it is important for extra safety that you can prove your voltage indicator will illuminate at 50V, which is a requirement of IEC 61243.