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Summary of Contents for Martindale Electric EZ664
- Page 1 EZ664 EZ668 SOCKET TESTER nstructIon anual...
- Page 2 CONTENTS Safety Information Meaning of Symbols and Markings Precautions Introduction Inspection Description Operation Description of Indicators Buzzer Using the EZ664 & EZ668 3.3.1 Wiring and Voltage Check 3.3.2 Loop Test 3.3.3 Polarity Check 3.3.4 RCD Trip Check 3.3.5 RCDs in the Circuit Under Test 3.3.6...
- Page 3 Particular attention should be paid to the Precautions and Technical Specification. If the equipment or accessories are used in a manner not specified by Martindale Electric, the protection provided by the equipment may be impaired. Please keep these instructions for future reference. Updated instructions and product information are available at: www.martindale-electric.co.uk...
- Page 4 (Measurement Category III) is applicable to CAT III test and measuring equipment connected to the distribution part of the building’s low-voltage MAINS installation. For further information on measurement categories visit: www.martindale-electric.co.uk Equipment complies with relevant EU Directives Equipment complies with relevant UK Conformity Assessed marking End of life disposal of this equipment should be in accordance with relevant Directives.
- Page 5 The EZ664 & EZ668 must only be used on CAT III installations up to 300V to earth. Always verify the unit is functioning correctly on a known correctly- wired live socket before and after use.
- Page 6 • RCD trip test for 30mA RCD’s. The EZ664 & EZ668 are supplied with both a 13A, 3 pin TL207 adapter and a TL36, 3 way flying lead with croc clips allowing testing at light fittings, junction boxes and terminals. Where there is only access to bare conductors.
- Page 7 3. OPERATION 3.1. Description of Indicators The EZ664 & EZ668 use two rows of LED’s to indicate wiring condition, mains voltage level and earth loop impedance. The top row of three tricolour LED’s marked LOOP TEST indicates the range within which the measured earth loop impedance falls.
- Page 8 If the wiring test detected a fault, then the loop impedance test is not performed. If the EZ664 / EZ668 does not power up and none of the LED’s illuminate this could mean that the wiring is incorrect, or the mains voltage is less than 135V and investigation of the wiring is required.
- Page 9 3.3.1 Wiring and Voltage Check The condition of the wiring at the socket under test or any out of tolerance supply voltage will be indicated by the LED sequences of figure 1 on the lower row of LED’s. If a wiring fault is detected or the supply voltage is out of tolerance the top loop indicator LED’s will not illuminate as a loop impedance measurement is not made.
- Page 10 Figure 2 . Socket wiring and EZ664 / EZ668 indications when live (phase) is connected to the socket. Socket Under Test Wiring OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN...
- Page 11 3.3.2. Loop Test If the wiring is correct and the supply voltage of the circuit under test is between 195V and 270V the lower indicators will all indicate green and one of the top indicators marked LOOP TEST will indicate the range into which the measured earth loop impedance falls.
- Page 12 (i.e., Supply Line is connected to Neutral & Earth, Supply neutral & earth are connected to Line) then as with all standard socket testers EZ664 will not detect this fault. The EZ668 can detect this fault using the additional supply cross polarity check.
- Page 13 The effect of highly inductive or capacitive loads and mains disturbances can be to reduce accuracy on the lower two ranges, e.g. if the actual loop impedance of the circuit under test is <1.7Ω then the EZ664 / EZ668 may indicate in the range 1.7Ω to 5Ω.
- Page 14 4.3 Storage Conditions The EZ664 / EZ668 should be kept in warm dry conditions away from direct sources of heat or sunlight, and in such a manner as to preserve their working life. It is strongly advised that they are...
- Page 16 5. WARRANTY AND LIMITATION OF LIABILITY This Martindale product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is 2 years and begins on the date of receipt by the end user.
- Page 17 affect the validity or enforceability of any other provision or other part of that provision. Nothing in this statement reduces your statutory rights.
- Page 18 Specification EZ664 / EZ668 Electrical Nominal operating voltage: 230V AC rms ± 10% Operating frequency: 50Hz Power consumption: <2.5W Power: from mains socket under test Non-trip earth loop impedance ranges: 0 - 1.7 - 5 - 10 - 100 - 200 - 500Ω...
- Page 19 Note 1: Measurement accuracy can be affected by highly inductive or capacitive loads distributed on the supply (see section 3.3.6). General EZ664 Dimensions: 91 x 80 x 38mm, Weight: approx. 120g EZ668 Dimensions: 152 x 80 x 36mm, Weight: approx. 185g Environmental For indoor use only Temperature (Operating &...
- Page 20 T: +44 (0)1923 441717 www.martindale-electric.co.uk sales@martindale-electric.co.uk Ver. E1.0 Due to policy of continuous development, Martindale Electric reserves the right to alter equipment specification and description outlined in this document without prior notice. No part of this document shall be deemed to be part of any contract for the equipment unless specifically referred to as an inclusion within such contract.
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