Megger LTW325-2 WIRE NON-TRIPPING LOOP IMPEDANCE TESTERS

The mid-range model in Megger’s LTW300 range of earth loop testers, the LTW325 builds upon the functionality of the LTW315 and adds such functionality as the ability to display Max Zs and R1 + R2.

Capable of full 2 wire loop testing designed not to trip 30ma RCDs and suitable for use with a wide range of voltages, the Megger LTW325 can be used to quickly and easily verify the loop impedance of electrical circuits without directly disconnecting the electrical supply.

Loop testing is performed using only 2 leads and can be connected as phase to earth, phase to neutral or phase to phase.

An integrated no-trip loop test ensures that the Megger LTW325 will not trip any RCD ≥30mA while a separate high current loop test can be used should there not be an RCD fitted to the system. To ensure accuracy when testing this earth loop tester also includes an integrated electrical noise detection filter that will detect and filter out the effects of heavy electrical noise which can have a negative effect on training results.

Megger LTW325-2 WIRE NON-TRIPPING LOOP IMPEDANCE TESTERS specifications:

• Two wire loop impedance measurement.
• Phase to Earth testing.
• Phase to Neutral testing.
• Guaranteed not to trip working RCDs of up to 30mA.
• Three phase circuits with RCD protection can also be tested.
• Test runs for approx. 10 secs.
• Sophisticated noise detection circuitry that monitors supply to ensure accuracy.
• Additional 10 secs is required if electrical noise is detected that could affect results.
• High current test used for supplies with no RCD.
• Auto-start function will start loop test running as soon as leads are connected.
• Enables testing on 110V centre tapped supplies.
• Frequency measurement.
• PFC calculation up to 20KA.
• Test results are displayed to a resolution of 0.01Ω.
• Backlit display.
• Three-phase safe and Category IV 300V rated.