Megger LTW425 2 Wire Non-trip Loop Impedance Tester maxZ R1+R2 Downloadable
- Manufacturer Certificate Included
- 2 wire non-tripping loop test
- 0.001 ohm resolution
- PSC/PFC
- Non Trip Testing
- 2-wire Non-tripping Loop Test
- Non-trip Loop Test
- PSC/PFC
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Information on the calibration of newly purchased equipment and what it means to you.
Calibration and its certification comes in varying forms on new equipment and in this section, we will break it down into the three areas that we use to classify calibration state at the point of purchase.
Manufacturers Calibration Certificate
This is a calibration certificate offered by the manufacturer supplied with the tester. This is also known as an end-of-line certificate or manufacturer’s certificate. These certificates vary depending on the manufacturer and product. They will not have your company's name on them and don’t always show proven test results.
Where applicable we will include the following statement relating to the item/s on the products page under the heading *Important Calibration Information.
This instrument comes complete with the manufacturer's calibration certificate. Please be aware that these certificates are generic and may also be time-lapsed.
If you would prefer a personalised full traceable calibration certificate applied to the equipment before dispatch, then please select this option from the drop-down menu above, an additional calibration charge will apply.Manufacturers Certificate of Conformity
A manufacturer's certificate of conformity is not a calibration certificate. It is merely a statement that the equipment has been produced to operate within its intended application, it has no traceable certificate or constitutes any defined results for accuracy before leaving the manufacturing process.
Where applicable we will include the following statement relating to the item/s on the products page under the heading *Important Calibration Information.
This instrument comes with a ‘manufacturer's certificate of conformity’. It is important to understand that this does NOT constitute a ‘calibration certificate’. A certificate of conformity merely states that the equipment has been designed and produced to meet the requirements of its intended application.
Where calibration of an instrument is possible we will offer this as a separately purchasable item and may be selected from the drop-down box above. You will be sent a full traceable calibration certificate produced in our laboratory and applied with your details as required.Personalised traceable calibration certificate from isswww
This is a calibration certificate created by us at ISS. This certificate is fully traceable to national and international standards. The certificate will show your company's details, tester information, proven test results and the equipment used to carry out the test. Nearly 90% of all calibrations we do are done in-house in one of our many fully equipped laboratories. You can add this service to your order on the product page before you checkout.
Where applicable we will include the following statement relating to the item/s on the products page under the heading *Important Calibration Information.
We are on occasion able to offer FREE calibration on certain products at their point of sale (newly purchased equipment only) please look out for the following badge on the product's page to take advantage of this free offer.
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Megger LTW425 Earth Loop Tester
The entry-level tester in Megger's earth loop tester range, the LTW425 is used for carrying out 2 wire loop impedance measurements on phase to earth or phase to neutral.
Guaranteed not to trip working RCDs of more than 30mA thanks to a non-trip loop test and compatible with both three and single phase systems, this tester makes performing measurements easier by requiring the use of only 2 test leads in order to carry out measurement procedures. When there is no risk of tripping an RCD it is also possible to use high current loop testing mode.
When carrying out no-trip testing procedures the LTW425 constantly evaluates the level of noise detected on circuitry to ensure that the accuracy of results is not modified by the presence of electrical noise.
The Megger LTW425 is part of the LTW range of earth loop testers. The following table outlines the difference between each of the available models in this series.
Megger LTW425 Comes Supplied With:
- Megger LTW425 Earth Loop Tester
- BS1363 to 3 x 4mm Socket Leadset
- 2 Wire Leadset with Croc Clips
- Shuko Plug Test Lead – EU-SC
- AU/NZ Plug Test Lead – EU-AU
- Hard Carry Case
- User CD
Key Features:
- 2-wire loop testing procedures on phase to earth and phase to neutral
- Guaranteed to not trip out RCDs thanks to non-trip loop testing
- Noise detection filters out electrical noise that can create erratic readings
- Resolution down to 0.01Ω
- Portable lightweight instrument with tough carrying case encasing the tester
- AUTO start function starts testing as soon as the leads are connected
- PFC display up to 20kA
Megger LTW Series Selection Chart
Function | LTW315 | LTW325 | LTW335 | LTW425 |
2-Wire Non Tripping Loop Testing | X | X | X | X |
2-Wire Fast Test (High Current) | X | X | X | X |
110V to 280V Applications | X | X | X | X |
50V to 440V Applications | X | X | X | |
Phase to Phase Testing | X | X | X | |
20KA PFC Range | X | X | X | X |
40KA PFC Range | X | |||
0.01Ω Resolution | X | X | X | X |
0.001Ω Resolution | X | |||
AUTO Noise Detection | X | X | X | X |
AUTO Start Loop Test | X | X | X | X |
Voltage Measurements | X | X | X | X |
Frequency Measurements | X | X | X | X |
Max Zs Display | X | X | X | |
R2+R2 Display | X | X | X | |
Backlit Display (White Light) | X | X | X | X |
Built-In Front Cover (Foldaway) | X | X | X | X |
IP54 Weatherproof Case | X | X | X | X |
Accepts Rechargeable Batteries | X | X | X | X |
Test Result Storage | X | |||
Downloadable | X | |
Key Features | Manufacturer Certificate Included, 2 wire non-tripping loop test, 0.001 ohm resolution, PSC/PFC, Non Trip Testing | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Product Stock Status | Next Day Delivery (subject to availability) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | Megger | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Short Description |
Updated January 2024
Please note, our cut-off time is 2:00pmOrders requiring calibrationWhilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery. Bank/Public HolidaysPredicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scopeof our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order. *UK Mainland (Revised March 2021)
Delivery SurchargesBecause of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:
Offshore ServicesAll offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles. International deliveryInternational delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk ExportAll export inquiries should be directed to the export division before placement of order. If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
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