background image

REPAIR AND WARRANTY

The instrument circuit contains static sensitive devices, and care must be
taken in handling the printed circuit board. If the protection of an instrument
has been impaired it should not be used, and be sent for repair by suitably
trained and qualified personnel. The protection is likely to be impaired if, for
example, the instrument shows visible damage, fails to perform the
intended measurements, has been subjected to prolonged storage under
unfavourable  conditions,  or  has  been  exposed  to  severe  transport
stresses.

New Instruments are Guaranteed for 3 Years from the Date of

Purchase by the User.

Note: Any unauthorized prior repair or adjustment will  automatically invalidate

the Wa r r a n t y.

Instrument Repair and Spare Parts
For service requirements for Megger Instruments  contact :-

Megger Limited

or

Megger

Archcliffe Road   

Valley Forge Corporate Center

Dover 

2 621 Van Buren Avenue

Kent,  CT17 9EN

Norristown, PA 19403

England

U.S.A.

Tel:  +44 (0) 1304 502243

Tel:  +1 (610) 676-8579

Fax: +44 (0) 1304  207342   

Fax: +1 (610) 676-8625

or an approved repair company.

Returning an Instrument for Repair
If returning an instrument to the manufacturer for repair, it should be sent
freight pre-paid to the appropriate address. A copy of the Invoice and of the
packing  note  should  be  sent  simultaneously  by  airmail  to  expedite
clearance through Customs. A repair estimate showing freight return and
other charges will be submitted to the sender, if required, before work on
the instrument commences.

Megger Limited

Archcliffe Road
Dover
Kent CT17 9EN

Tel:  +44 (0) 1304 502100

England

Fax: +44 (0) 1304 207342

4271 Bronze Way
Dallas

Tel:  +1 (800) 723-2861 (U.S.A. only)

TX 75237-1017

Tel:  +1 (214) 330-3203 (International)

U.S.A.

Fax: +1 (214) 337-3038 

Valley Forge Corporate Center
2 621 Van Buren Avenue
Norristown, PA 19403

Tel:  +1 (610) 676-8500

U.S.A.

Fax: +1 (610) 676-8610

Megger SARL

29 Allée de Villemomble

93340 Le Raincy

Paris

Tel:  +33 (1) 43.02.37.54

France

Fax: +33 (1) 43.02.16.24

This instrument is manufactured in the United Kingdom
The company reserves the right to change the specification or design without prior notice
Megger is a registered trademark 

Part No. 6172-087 - Edition 10 - Printed in England - 0503

Summary of Contents for LT7

Page 1: ...fied before carrying out an earth fault loop impedance test Exposed metalwork of an installation or equipment under test must not be touched LT7 must not be connected across two phases of a 3 phase su...

Page 2: ...short circuit current A special range is provided to carry out loop measurement on installations protected by Residual Current Devices 30mAwithout causing the breaker to trip out The resolution in thi...

Page 3: ...s are reversed N PE neon activated 2 Neutral Earth voltage 50 V when performing a 3 wire test L PE and N PE neons activated 3 Electrical noise exceeds rejection level on low current range displayed 4...

Page 4: ...t probe to Protective Earth ground or to Neutral Mains line voltage is displayed 3 Test progress is indicated by a sequential display of vertical bars 4 PSCC value displayed directly in kA 20kA displa...

Page 5: ...ted instrument with a clean cloth dampened with soapy water or Isopropyl Alcohol IPA ACCESSORIES Supplied Part number User Guide 6172 087 Power cord test lead with 3 pin plug to BS1363 A 6231 601 or P...

Page 6: ...8579 Fax 44 0 1304 207342 Fax 1 610 676 8625 or an approved repair company Returning an Instrument for Repair If returning an instrument to the manufacturer for repair it should be sent freight pre p...

Page 7: ...indicateur de tension N PE Neutre Terre est activ Des mesures r p t es peuvent tre effectu es soit en d connectant puis en reconnectant l instrument par exemple lors de l utilisation de sondes de tes...

Page 8: ...e l interrupteur rotatif sur 20 2 Brancher le LT7 ou connecter fermementle capteur de test rouge sur Phase et le capteur de test noir sur Neutre ou sur Terre de Protection terre La tension du secteur...

Page 9: ...smessungen k nnen entweder durch Abnehmen und Wiederanschlie en des Instruments an die Installation z B wenn Pr fsonden verwendet werden oder durch Bet tigen des Wiederholungspr fknopfes Retest durchg...

Page 10: ...7 ein oder schlie en die rote Pr fsonde fest an Spannungsf hrend und die schwarze Pr fsonde an die Schutzerdung Erde oder Neutral an Netzspannung Leitung wird angezeigt 3 Der Pr fverlauf wird durch di...

Page 11: ...camente una medici n Los cables de prueba terminados en un enchufe de dos patillas deber n invertirse si s lo se activa el indicador de tensi n N PE Pueden realizarse mediciones repetidas bien sea des...

Page 12: ...o conectar firmemente la sonda de prueba roja al Conductor con corriente y la sonda de prueba negra al Neutro o a Tierra Protectora masa Se visualiza la tensi n de la red l nea 3 La marcha de la prue...

Reviews: