MARTINDALE ELECTRIC EZ650 (02) PDF MANUAL

MARTINDALE ELECTRIC EZ650 (02) PDF SUMMARY:

How do I inspect the E-Ze Check™ Xtra?

Examine the shipping carton for any sign of damage. Inspect the unit and any accessories for damage. If there is any damage then consult your distributor immediately.

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What should I do before using the E-Ze Check™ Xtra?

Before use check the unit for cracks or any other damage. Make sure the unit is free from dust, grease and moisture. Also check any associated leads and accessories for damage. Do not use if damaged.

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What does it mean if the E-Ze Check™ Xtra does not power up and none of the indicators illuminate?

This does not necessarily mean the circuit under test is dead. E.g. the earth and neutral lines could both be open circuit, or the mains supply voltage could be less than 160V but still at a dangerous level.

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What should I do before using the E-Ze Check™ Xtra?

Wherever possible verify that the E-Ze Check™ Xtra is in good working order before use by testing it in a known correctly wired socket.

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What should I do if the E-Ze Check™ Xtra indicates a fault condition in the wiring under test?

Always investigate the wiring or have the wiring investigated by a competent person.

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What should I do if the E-Ze Check™™ Xtra does not perform its self-test and none of the indicators illuminate?

This could mean the supply voltage is less than 160V (see section 2 Precautions). Verify the E-Ze Check™™ Xtra in a known correctly wired socket.

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What should I do if any indicators do not illuminate or do not illuminate in the above sequence?

Then do not use the E-Ze Check™™ Xtra and return it for repair.

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What should I do before using the E-Ze Check™™ Xtra?

Ensure you have read the precautions_(Section 2) before proceeding and have tested the unit in a known correctly wired socket or fitting if using the professional kit.

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How do I use the E-Ze Check™™ Xtra EZ150?

Plug the E-Ze Check™™ Xtra EZ150 into the socket to be tested.

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How do I use the E-Ze Check™™ Xtra EZ650 with TL88 leads?

If you are using the E-Ze Check™™ Xtra EZ650 with TL88 leads to test wiring, connect the green clip to earth, black to neutral and red to live in that order and then plug the TL88 lead into the E-Ze Check™™ Xtra IEC inlet socket.

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What should I do after plugging in the E-Ze Check™™ Xtra?

Verify that the E-Ze Check™™ Xtra performs its self-test routine correctly (see section 3.2) then simply compare the status of the flashing indicators with figures 1 & 2 referring also to sections 3.3.1 and 3.3.2.

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What should I do if the E-Ze Check™™ Xtra does not power up and perform its self-test and none of the LED’s illuminate?

This could mean that the wiring is incorrect or that the supply voltage is less than 160V (see section 2 Precautions). Investigation of the wiring is required. In such circumstances verify the E-Ze Check™™ Xtra in a known correctly wired socket to confirm the need for investigation.

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What is the design of the E-Ze Check™™ Xtra??

The E-Ze Check™™ Xtra is designed to be plugged into a socket and removed after the test has been performed.

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What happens if the E-Ze Check™™ Xtra is left plugged into a socket or connected to wiring?

If the E-Ze Check™™ Xtra is left plugged into a socket or connected to wiring, then after approximately 2 minutes the measurement rate and indicator flash rate will be decreased automatically.

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How do I perform a 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 flash green and one of the top indicators (Loop Test) will indicate the range into which the measured earth loop impedance falls.

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What does it mean if the top center indicator is flashing green?

Then the measured earth loop impedance of the circuit under test is between 1.72 and 5Ω.

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What does it mean if the top left-hand indicator is flashing red?

Then the measured earth loop impedance is between 100 and 1002.

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Where can I find the information to determine if the indicated earth loop impedance of the wiring under test meets the necessary requirements?

Refer to the IEE Wiring Regulations, 16th Edition or later, to determine if the indicated earth loop impedance of the wiring under test meets the necessary requirements.

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What should I do if the wiring is faulty or the supply voltage is <195V or >270V or the earth loop impedance is >500Ω?

One of the fault sequences of figure 2 will be indicated on the lower indicators. The top indicators will not illuminate as a loop impedance measurement is not made if a wiring fault is detected or the supply voltage is <195V or >270V.

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What should I do if a fault is detected?

Always investigate the wiring under test or have the wiring investigated by a competent person.

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What factors should be considered when testing RCD’s in the circuit under test?

Factors which should be considered are where equipment, such as computers may introduce earth leakage currents due to internal noise filter circuits. This earth leakage current can approach the trip threshold of an RCD or RCBO, and the E-Ze Check™™ Xtra test current will add to it with the possibility of the protective device tripping.

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What should I do before using the E-Ze Check™™ Xtra on critical circuits?

Before using the E-Ze Check™™ Xtra on critical circuits which supply computers, medical equipment, or other systems where loss of supply is unacceptable, ensure these are not being operated, in line with normal practice when using electrical test equipment.

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When is it possible that the earth loop impedance measurement could be affected?

Where supply circuits under test have highly inductive or capacitive loads distributed on that circuit or there is an excessive amount of mains disturbance present (e.g. motors running, etc) it is possible the earth loop impedance measurement could be affected.

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What can be done if the earth loop impedance measurement could be affected?

In such circumstances, where possible, disconnect any loads that may be a source of error. Alternatively, perform the measurement when the wiring under test is electrically quiet.

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How do I maintain the E-Ze Check™™ Xtra?

To maintain the integrity of measurements made using your instrument, Martindale Electric recommends that it is returned at least once a year to an approved Calibration Laboratory for recalibration and certification.

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How do I clean the E-Ze Check™™ Xtra?

The unit may be cleaned using a soft dry cloth. Do not use moisture, abrasives, solvents, or detergents, which can be conductive.

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Are there any user-serviceable parts on the E-Ze Check™™ Xtra?

There are no user serviceable parts in this unit other than those that may be described in section 3. Return to Martindale Electric if faulty. Our service department will quote promptly to repair any fault that occurs outside the guarantee period. Before the unit is returned, please ensure that you have checked the unit, poor connections and the leads (EZ650 only).

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What are the storage conditions for the E-Ze Check™™ Xtra?

The instrument should be kept in warm dry conditions away from direct sources of heat or sunlight, and in such a manner as to preserve the working life of the unit. It is strongly advised that the unit is not kept in a tool box where other tools may damage it.

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Table 1: Loop Test (Top Indicators)

Indicator Status	Loop Impedance Range (Ω)
Green Flashing	0 – 1.7
Green Flashing	1.7 – 5
Green Flashing	5 – 10
Red Flashing	10 – 100
Red Flashing	100 – 200
Red Flashing	200 – 500
Red Flashing	>500 or wiring fault or voltage <195V or >270V

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Table 2: Mains Wiring Connections to Check Plug Pins Possible Indications

Socket Wires Under Test	Possible Indications
N E L	Wiring correct, voltage OK (>195V & <270V)
E N L	Wiring correct, voltage high (>270V)
E E L	Wiring correct, voltage low (<195V)
N N L	Wiring correct, earth neutral voltage (>30V)
OPEN E L	Open neutral
OPEN N L	Open earth (>500Ω)
OPEN L E N	Phase (Live) fault

Note: “OPEN” can mean absent connection or poor connection.

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Table 3: Socket Wires Under Test Possible Indications

Socket Wires Under Test	Possible Indications
L E N	Phase neutral reversal
L E E	Phase earth reversal
L N L	Serious wiring fault or Voltage <160V (see section 3.1 Precautions)
OPEN OPEN OPEN	Serious wiring fault or Voltage <160V (see section 3.1 Precautions)

Note: “OPEN” can mean absent connection or poor connection. Note: The E-Ze Check™™ Xtra does not detect earth-neutral reversal, or faults that have commoned the earth and neutral pins of the E-Ze Check™™ Xtra.