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

Megger LTW325 Earth Loop Tester

SKU

MEGLTW325

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£544.80 £454.00

3 in Stock

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Description

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.

The following table outlines the functionality and differences between each of the four testers in Megger's LTW300 range.

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 LTW325 Earth Loop Tester Key Features

2-wire non trip loop testing
2 wire fast testing (high current)
Suitable for use on 110V to 280V applications
Also suitable for use on 50V to 440V applications
Phase to phase testing
20 KA PFC range
0.01Ω resolution
Automatic noise detection and correction
Auto loop test initiation
Voltage and frequency measurements
Max Zs display
R1 + R2 display

Full List of Products Included

Megger LTW325 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

Accessories

There are a number of accessories available for the Megger LTW325 Earth Loop Tester. For further information please contact our sales team.

Our SKU	Megger Part Number	Product
MEGRCDA1	6231-601	UK Mains Plug Test Leadset 3-pin 1 wire (BS1363 plug)
MEGLTA2	1001-883	Test lead set 3-wire Red/Black/Green with prods/clips (exposed tip)
1001-976	1003-132B	Test Lead Set Red/Green Unfused (Boxed)
1000-562	1000-562	Test Lead Replacement Probe Cap [Clear] Bag of 20
6220-810	1004-323B	SIA10 Socket Interface Adaptor UK to 3 Leads x 4mm (Boxed)
1005-469	1005-469	SIA10 Socket Interface Adaptor LTW
1007-003	1007-003	Blow Moulded Case Catch - Pack of 10
1007-167	1007-167	Blow Moulded Case MIT/LT/RCDT 300 Series
Please note that the accessories listed above and the attached datasheets are subject to change. Both were correct at the time of publication.

Tech Specs

Megger LTW325 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 280V
±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