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Martindale EZ165 Socket & Non-Trip Earth Loop Tester The Martindale EZ165 Socket & Non-Trip Earth Loop Tester helps electricians and service engineers check socket safety quickly and accurately. Users simply plug it into a mains socket, and the clear LED indicators provide instant results. This allows faults to be identified without carrying out complicated tests. Unlike a basic socket tester, this unit checks both the presence and condition of the earth connection. The Martindale EZ165 Socket & Non-Trip Earth Loop Tester performs a non-trip earth loop impedance test, so it does not trip RCDs during use. It also detects up to 28 wiring fault conditions and helps users confirm that protective devices can operate correctly. Fast Fault Identification Clear red and green LEDs make results easy to understand, even in busy working environments. A built-in fault chart helps users identify the meaning of each indication without referring to extra documents. Because of this, testing becomes faster and more efficient. Built for Everyday Use The tough and lightweight housing stands up to regular site use and makes everyday testing easier. Each time users plug in the unit, it performs a self-test to confirm that it is working correctly and ready for use. Its ergonomic shape also allows users to remove the tester from the socket quickly and comfortably. With six impedance ranges from less than 1.7Ω to 500Ω, the Martindale EZ165 Socket & Non-Trip Earth Loop Tester provides more information than standard socket testers. It can highlight poor earth conditions that may otherwise go unnoticed. Therefore, engineers can make informed decisions about electrical safety. Two different set types are available to suit different testing needs. The Martindale EZ165 Socket & Non-Trip Earth Loop Tester is also manufactured to meet relevant BS EN safety and EMC standards. This combination of ease of use and advanced testing functions makes it a practical addition to any electrical toolkit.   Key Features Provides instant socket polarity checking Tests earth continuity without tripping RCDs Identifies up to 28 wiring fault conditions Uses red and green LEDs for fast indication Includes a built-in fault reference guide Features a self-test during every use Lightweight design for frequent testing tasks Ergonomic shape for easy socket removal Suitable for electricians and maintenance engineers Helps verify correct operation of protective devices Designed for routine mains socket inspections Offers advanced testing beyond basic socket checkers Provides a quick assessment of wiring condition Available in two different set types   Technical Specifications Manufacturer Martindale Electric Manufacturer part code EZ165 Nominal operating voltage 230V AC rms Operating frequency 50Hz Power consumption <2.5W Power source Mains socket under test Non-trip earth loop impedance ranges 0 to 1.7Ω, 5 to 10Ω, 10 to 100Ω and 100 to 500Ω Earth loop threshold accuracy ± (10% 0.3Ω) Low voltage indication <195V ±5% High voltage indication >270V ±5% Earth neutral high voltage indication >30V nominal Open earth indication >500Ω ±10% Dimensions 65 x 80 x 59mm Weight 93g approximately Operating and storage temperature -10°C to 40°C, maximum 60% RH Maximum operating altitude Up to 2000m Pollution degree 2 Safety compliance BS EN 61010-1, CAT II 300V, Class II double insulation EMC compliance BS EN 61326-1 Warranty Not specified   Comparison Table Function EZ165 EZ365 Nominal operating voltage 230V AC rms 230V AC rms Operating frequency 50Hz 50Hz Power consumption <2.5W <2.5W Power source From mains socket under test From mains socket under test Non-trip earth loop impedance ranges 0 to 1.7Ω, 5 to 10Ω, 10 to 100Ω, 100 to 500Ω 0 to 1.7Ω, 5 to 10Ω, 10 to 100Ω, 100 to 500Ω Earth loop threshold accuracy ± (10% 0.3Ω) ± (10% 0.3Ω) Voltage low indication <195V ±5% <195V ±5% Voltage high indication >270V ±5% >270V ±5% Earth neutral voltage high indication >30V nominal >30V nominal Open earth indication >500Ω ±10% >500Ω ±10% RCD test current at 195V — 30mA Duration of RCD test current — 300ms Polarity cross test — L-NE swap at incoming supply Dimensions 65 x 80 x 59mm 65 x 80 x 59mm Weight 93g 93g Temperature operating and storage -10°C to 40°C, max 60% RH -10°C to 40°C, max 60% RH Maximum altitude Up to 2000m Up to 2000m Pollution degree 2 2 Safety compliance BS EN 61010-1, CAT II 300V, Class II BS EN 61010-1, CAT II 300V, Class II EMC compliance BS EN 61326-1 BS EN 61326-1   Document Downloads Martindale EZ165 Socket & Non-Trip Earth Loop Tester - Datasheet (Size: 888 KB)Martindale EZ165 Socket & Non-Trip Earth Loop Tester - User Manual (Size: 702 KB)   What’s Included Martindale EZ165 Socket & Non-Trip Earth Loop Tester