Megger MPU690 Manuale utente

MPU690 Proving Unit

User Guide

Introduction

The MPU690 Proving Unit safely generates high voltages to energise

2 pole voltage testers thus allowing veriﬁcation of their correct

operation. The unit will also test voltage testers that use a pygmy

lamp.

Features include automatic power on when voltage tester probes are

inserted into the output terminals, 50Hz test voltage to simulate AC

mains supply and a magnetic back to the case.

Instructions

To activate the MPU690 ﬁrstly insert the voltage tester ﬂying lead

probe into the right hand terminal followed by the voltage tester ﬁxed

probe into the left hand terminal.

Gently apply and maintain pressure to the left hand probe to activate

the internal power switch. The test voltage is transmitted to the

voltage tester.

The test voltage LEDs will automatically ramp up to 690 volts and then

slowly ramp back down 690 V - 400 V - 230 V - 100 V - 50 V - OFF (to

re-test slightly lift the left-hand probe and re-apply the pressure).

The advantages of the auto test function are:

1. Individual voltages are applied at ﬁve key voltage test

points with signiﬁcant battery savings as power is

automatically switched off when the test is completed.

2. Once the voltage tester has been proved to be correctly

functioning you may carry out testing circuits.

It is recommended that a voltage tester be veriﬁed regularly.

GSafety Warnings – Risk of electric shock

Safety Warnings must be read and understood before instrument is

used. As this unit generates voltages up to 690 volts caution should

be exercised, hands should remain behind guards of applied voltage

detectors.

■Never connect to installation wiring.

■Only voltage testers should be connected to the proving unit.

■Never insert wire, nails or screwdrivers into either terminal.

■Do not force objects into the left hand terminal to enable

permanent operation.

■Ensure the unit is free from moisture, grease and dust;

clean unit with a soft dry cloth only.

■Do not use if there is any damage to the MPU690.

■The battery cover must be in place whilst conducting tests.

Note: This instrument must only be used by suitably trained

and competent persons.

Safety Warnings cont.

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.

End of life disposal

WEEE Directive

The crossed out wheeled bin symbol on the instrument and

on the batteries is a reminder not to dispose of them with

general waste at the end of their life.

Megger is registered in the UK as a Producer of Electrical and

Electronic equipment. The registration no is; WEE/DJ2235XR.

Users of Megger products in the UK may dispose of them at the

end of their useful life by contacting B2B Compliance at www.

b2bcompliance.org.uk or by telephone on 01691 676124.

Users of Megger products in other parts of the EU should contact their

local Megger company or distributor.

Battery Disposal

Batteries in this product are classiﬁed as Portable Batteries under the

Batteries Directive. Please contact Megger Ltd for instructions on the

safe disposal of these batteries.

For disposal of batteries in other parts of the EU contact your local

distributor.

Megger is registered in the UK as a producer of batteries. The

registration number is BPRN01235. For Further information see

www.megger.com

Speciﬁcation

Output Voltage: 50 – 690 volts in ﬁve steps

Power Supply: 6 x AA / LR06 alkaline batteries

Operating Conditions: -10 to +40ºC, 70% RH

EN61010 pollution degree 2

Number of tests: Approximately 550

N.B. A voltage tester that uses a pygmy lamp will reduce the

number of tests available due to the drain on the batteries.

Megger Limited

Archcliffe Road,

Dover, CT17 9EN

United Kingdom

Tel +44 (0) 1304 502100

Email sales@megger.com

Web www.megger.com

This instrument is manufactured in China

The company reserves the right to change speciﬁcation or

design without prior notice.

Megger is a registered trademark

Part No. MPU690_UG_en_V03 06/14

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