Megger MET1000 Manuale utente

MET1000

All in One True RMS Electrical Tester

User Guide

phone: 800-903-9870 440-378-6580

fax: 800-903-9590 440-238-0660

www.weschler.com info@weschler.com

WESCHLER INSTRUMENTS

Authorized Distributor:

Megger Ltd reserves the right to alter the speciﬁcation of its products from time to time

without notice. Although every effort is made to ensure the accuracy of the information

contained within this document it is not warranted or represented by Megger Ltd. to be

a complete and up - to - date description.

English

Declaration of Conformity

Hereby, Megger Instruments Limited declares that radio equipment manufactured by

Megger Instruments Limited described in this user guide is in compliance with Directive

2014/53/EU. Other equipment manufactured by Megger Instruments Limited described

in this user guide is in compliance with Directives 2014/30/EU and 2014/35/EU where

they apply.

This manual supersedes all previous issues of this manual. Please ensure that you are

using the most recent issue of this document. Destroy any copies that are of an older

issue.

Safety Information

To ensure safe operation and service of the meter, follow these instructions.

Failure to observe warnings can result in severe injury or death.

If the equipment is used in a manner not speciﬁed by the manufacturer, the

protection provided by the equipment may be impaired.

Always use the proper terminals, switch position, and range for measurements.

Ensure hands are kept behind the barrier / hand guard when making

measurements

To reduce the risk of ﬁre or electric shock, do not use this product around explosive

gas or in damp locations.

Verify the Meter operation by measuring a known voltage. If in doubt, have the

meter calibrated.

Do not apply more than the rated voltage, as marked on meter, between terminals

or between any terminal and earth.

Avoid working alone.

Do not use the tester if the tester is not operating properly or if it is wet.

Personal protective equipment must be used if hazardous live parts in the

installation where the measurement is to be carried out could be accessible.

Use caution with voltages above 30 VAC rms, 42 VAC peak, or 60 VDC. These

voltages pose a shock hazard.

DO NOT USE the test leads if the internal white insulation layer becomes exposed.

DO NOT USE the test leads for voltage or current measurement in any environment

above the safety CAT rating printed on the probe or probe tip guard cap

DO NOT USE the test leads without the probe tip guard cap in CAT III or CAT IV

environments.

Probe assemblies to be used for mains measurements shall be rated as appropriate

for measurement Category III or IV according to IEC 61010-031 and shall have a

voltage rating of at least the voltage of the circuit to be measured.

Disconnect circuit power and discharge all high-voltage capacitors before testing

resistance, continuity.

Safety Information

Symbols as marked on the Meter and Instruction manual

Symbol Explanation

Risk of electric shock

See instruction manual

DC measurement

AC measurement

Both direct and alternating current

Equipment protected by double or reinforced insulation

Battery

Earth

Conforms to EU directives

Application around and removal from hazardous live

conductors

Do not discard this product or throw away

CATIV: Measurement category IV: Equipment connected between the origin of the low-

voltage mains supply outside the building and the consumer unit.

CATIII: Measurement category III: Equipment connected between the consumer unit and

the electrical outlets.

CATII: Measurement category II: Equipment connected between the electrical outlets

and the user’s equipment.

Making Basic Measurements

Observe all Warnings and Cautions before measurements.

G CAUTION

When connecting the test leads to the device under test connect the common test

leads before connecting the live test lead. When removing the test leads, remove

the live test lead before removing the common test lead.

Make sure that the buzzer sound is perceptible before using it under high

background noise environment.

Safety Information

Voltage/Continuity/Single Pole Mode

Voltage Measurement

LED Gindicates measured voltage is high than ELV limit (50 VAC and/or 120 VDC).

G Warning

When batteries are not ﬁtted or are exhausted, the tester is capable of measuring

>45 VAC and/or >35 VDC.

Timing Rating (tr): 30 seconds, Recovery Time (rt): 240 seconds, when measuring

>300 V, recovery time is necessary.

L/R LED may light up when measuring AC voltage.

Due to the high internal resistance, capacitive and inductive voltage (ghost voltage)

may be indicated.

Voltage/Continuity/Single Pole Mode

Continuity Check

Voltage/Continuity/Single Pole Mode

Single Pole Phase Check

Detach lead

Grip ﬁrmly

Neutral Live

G Warning

The MET1000 Single Pole Check feature consists of using only one test lead

connected to the MET1000, remove second test lead if ﬁtted.

To carry out Single Pole Check test, while ﬁrmly holding the MET1000 connect the

test lead into a live circuit, this will cause the MET1000 to repeatedly beep and the

hazard symbol to illuminate without any voltage being displayed on the screen.

If a voltage appears on the screen then use 2 Pole method to prove the circuit live.

Voltage/Continuity/Single Pole Mode

Phase Rotation Test

Clockwise Phase Sequence L1-L2-L3 (Right)

Source Terminal

Grip 󰄈rmly

Counter-clockwise Phase Sequence L1-L3-L2 (Left)

Source

Grip 󰄈rmly

Terminal

G Warning

Phase Rotation Test works only on 3 phase 4 wire systems. The result is unreliable on

any other systems.

G Note

It maybe necessary to check the result by testing in reverse sequence.

Phase Rotation Test

Resistor Mode

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