Home Electrical, EV & Electronic Electrical Test Equipment (18th Edition) Earth Loop Testers

Megger LTW335 Downloadable Earth Loop Tester

SKU

MEGLTW335

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£583.20 £486.00

Lead Time: 2-3 Weeks

Free UK Delivery*

Description

Part of Megger's LTW300 range of earth loop testing instruments, the LTW335 is the only model in this range to come with built-in memory, allowing the user to store and download testing results into a compatible PC.

No more jotting down of testing results; simply use the LTW335 to perform a test, store it into the instrument's internal memory and then view your results back whenever you want. This makes this tester ideal for those who will be regularly testing earth loops in multiple areas, speeding up your testing as you're not wasting time making notes.

The Megger LTW335 is capapable of performing two wire testing and verification of loop impedance on a live electrical circuits without the need to disconnect the electrical supply. It's also equipped with a full non-trip loop test that ensures that the LTW335 will not trip out working RCDs of ≥30mA and a separate high current loop test can also be used when there is no risk of tripping an RCD.

When testing this earth loop tester constantly monitors the circuit and uses sophisticated noise detection circuitry to filter out the effects of electrical noise which can compromise the accuracy of testing results.

This tester is part of the LTW300 series, which consists of four testers. The following table outlines the difference between each of these instruments:

Function	LTW315	LTW325	LTW335	LTW425
2-Wire Non Tripping Loop Testing	√	√	√	√
2-Wire Fast Test (High Current)	√	√	√	√
110V to 280V Applications	√	√	√	√
50V to 440V Applications	-	√	√	√
Phase to Phase Testing	-	√	√	√
20KA PFC Range	√	√	√	√
40KA PFC Range	-	-	-	√
0.01Ω Resolution	√	√	√	√
0.001Ω Resolution	-	-	-	√
AUTO Noise Detection	√	√	√	√
AUTO Start Loop Test	√	√	√	√
Voltage Measurements	√	√	√	√
Frequency Measurements	√	√	√	√
Max Zs Display	-	√	√	√
R2+R2 Display	-	√	√	√
Backlit Display (White Light)	√	√	√	√
Built-In Front Cover (Foldaway)	√	√	√	√
IP54 Weatherproof Case	√	√	√	√
Accepts Rechargeable Batteries	√	√	√	√
Test Result Storage	-	-	√	-
Downloadable	√	√	-	√

Megger LTW335 Earth Loop Tester Key Features

2 wire, non-tripping loop testing
50V to 440V operation
Phase to phase testing
20-40 KA PFC range
0.01 ohm resolution
Auto noise detection
Auto start loop test
Voltage and frequency measurement
Backlit display
Fold-away front cover
IP54 weatherproof casing
Accepts rechargeable batteries
Store test results
Download test results
Test lead set with crocs
Mains socket lead test
IEC51010-1 300V CATIV safety rating
EN61557

What's Included?

Megger LTW335 Earth Loop Tester
BS1363 to 3 x 4mm Socket Leadset
2 Wire Leadset with Croc Clips
Schuko Plug Test Lead - EU-SC
AU/NZ Plug Test Lead - EU-AU
Hard Carry Case
User CD

Tech Specs

Megger LTW335 Technical Specifications

General Accuracy
All accuracy statements are based on:
Ambient Temperature	23° ±2°C
Nominal Voltage Source	230V a.c ±1%
Voltage Measurements
(ac only)	50V to 440V
Accuracy	±2% ±1V
Frequency Measurements
Range	25Hz to 99.99Hz
Accuracy	±0.1Hz
A warning will be shown if applied voltage exceeds 440V. Damage will occur if applied voltage exceeds 600V rms
Loop Testing Accuracy
±5% ±0.03Ω	@230V a.c
±10% ±0.03Ω	@100V a.c and 300V a.c
±15%±0.03Ω	@50V a.c.
No Trip Loop and High Current Loop Test
Source Voltage	50V to 440V (49Hz to 50.1Hz)
Display Range	0.01 to 2000Ω
Accuracy	±5% ± 0.03Ω
No Trip Loop Test Nominal Current	15ma (at nominal 230V a.c supply)
High Current Loop Test	4A (at nominal 230V a.c supply)
Operational Range	0.30 to 1000Ω
Prospective Fault Current (PFC)
Prospective Fault Current	=Measured Source Voltage/Loop Resistance
Maximum Range	No Trip Mode: 20KA
Accuracy is derived from loop test and voltage measurement
Safety	IEC 61010 Designed to IEC61010-1 Designed for 300 volts to Earth Category IV with phase to phase voltages to 440V. Fuse protected to 600 volts rms AC
EN61557	Complies with the following parts of EN61577: Electrical Safety in Low Voltage Systems up to 1000V ac and 1500V dc - Equipment for testing, measuring or monitoring of protective measures: Part 1: General Requirements Part 3 - Loop Resistance
E.M.C	In accordance with IEC61326-1
Power Supply
Battery	8 x 1.5V Cells IEC LR6 Type (AA Alkaline)
Rechargeable	8 x 1.2V NiCd or NIMH Cells
Battery Life	2000 consecutive tests
Mechanical
Weight	1000g ±10% excluding test leads
Dimensions	203 x 148 x 78mm