Martindale Proving Units
Discover the essential aspects of Martindale Proving Units for electric testing. Enhance your knowledge and ensure accurate testing?read the article now!
Find out more about Martindale Proving Units below.
- Single voltage output: 690V AC
- Applies full voltage upon contact
- Auto Power Off function
- Long battery life
- Maximum output current of 2mA
- Maximum output voltage of 240V
- Compact body made from flame-retardant ABS for safety
- 3 ranges
- Switchable AC / DC output mode
- Suitable for use with voltage indicators up to 230V
- Auto Power Off
- Lightweight, compact, and rugged
- Long battery life
- Low battery indicator
- Stepped voltages
- CALCHECK
- Auto Power Off function
- Low battery indicator
- CALCHECK
- Low battery indicator
- Long battery life
- Auto Power Off function
- 4 ranges
- Switchable AC / DC output mode
- Suitable for use with voltage indicators up to 440V
- CALCHECK
- 4 ranges
- Compatible with S-series magnetic hanger
- 5 ranges
- Switchable AC / DC output mode
- Suitable for use with voltage indicators up to 690V
- Low-profile, durable proving unit
- 690V test voltage
- Heavy denier nylon case with a shoulder strap and clear front pocket
- PD440S: 440V industry-leading proving unit
- VI13800 Voltage tester range: 50V to 600V AC/DC
- TC71 Combination Carry Case
- Proving unit checks accuracy up to 440V
- 500V AC, 750V DC voltage
- LED light up display
- Industry-leading 690V PD690SRD Proving Unit
- VI15000 Voltage Indicator range: 50 to 1000V AC/DC
- Use the PD690SRD Proving Unit through the TC71 Carry Case
- Includes Martindale's MTL15 Test Lamp, PD690 Proving Unit and TC69 Carry Case
- Test lamp can prove high-power equipment is dead
- Verify the functionality of the test lamp with the PD690
- Four voltage levels
- Dual impedance
- PD440S Proving device
- MTL20 Test lamp
- VI13800 Voltage Tester: 50-600V AC/DC
- 440V PDS440S Proving Unit that can be used through the TC71 Case
- LOKKIT1 12-Piece Lockout Kit
- VI13800 Voltage Tester: 50-600V AC/DC
- 440V PDS440S Proving Unit that can be used through the TC71 Case
- LOKKITPRO 17-Piece Lockout Kit
- Industry-leading 690V PD690SRD Proving Unit
- VI15000 Voltage Indicator range: 50 to 1000V AC/DC
- 12-piece LOKKIT1 Lockout Kit
- Industry-leading 690V PD690SRD Proving Unit
- VI15000 Voltage Indicator range: 50 to 1000V AC/DC
- 17-piece LOKKITPRO Lockout Kit
About Martindale Proving Units
Martindale Electric, a leading name in electrical safety testing, has developed proving units that ensure voltage indicators and test equipment are functioning correctly before use. These devices provide a known voltage source for testing voltage indicators before and after use, which are fundamental to implementing safe isolation procedures in accordance with Electricity at Work Regulations.
The proving unit range spans multiple voltage outputs to match different testing requirements, from the compact PD230SRD series for domestic applications to the PD690 series for industrial three-phase systems. Each model produces precise test voltages to verify voltage indicators, test lamps, and multimeters are working correctly.
Key specifications in the range include:
- Output voltage from 50V to 690V, depending on model
- Nominal output frequency of 50Hz (AC models)
- Operating temperature range of -10?C to 40?C
- Power supply via 6 x AA alkaline batteries
- Dimensions of 150 x 80 x 35mm for standard units
- Weight approximately 350g with batteries
Notable features vary by series:
- Stepped voltage outputs on SRD models matching common tester thresholds
- CALCHECK function on SX models for verifying installation tester accuracy
- Switchable AC and DC outputs (RD models)
- LED indication for different voltage thresholds
- Auto power-off function to preserve battery life
- Low battery indicators
- Magnetic hanging capability
Most models feature tough overmoulded cases for durability in industrial environments. These proving units are designed to provide instant voltage output upon contact, enabling quick verification of test equipment functionality. They serve essential functions in safe electrical isolation procedures, voltage indicator verification, installation testing, industrial maintenance, and electrical contracting.
