Tettex MIDAS 2881, Operating Instructions Manual

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Introduction 1
1 Introduction
1.1 Receiving Instructions
When taking delivery, any possible transport damage should be noted. A written record should be
made of any such damage. A suitable remark should be recorded on the delivery documents.
A claim for damage must be reported immediately to the transport company and to the Customer
Support Department of HAEFELY TEST AG or the local agent. It is essential to retain the damaged
packing material until the claim has been settled.
Check the contents of the shipment for completeness immediately after receipt (See chapter "Scope
of Supply“). If the shipment is incomplete or damaged then this must be reported immediately to the
transport company and the Customer Support Department of HAEFELY TEST AG or the local agent.
Repair or replacement of the instrument can then be organised immediately.
1.2 General
The MIDAS provides determination of the capacitance and dielectric loss of liquid and solid insulation.
Measurements can be carried out on solid insulation such as cables, capacitors, power transformers,
generators, motors, bushings etc. and on insulating oil with an optional oil test cell.
Operation is achieved via a sunlight readable touch screen and offers optimal user friendliness.
Operation is simple thanks to the user dialogue system and on-line help.
The system is ideal for high and low voltage measurements over a wide frequency range. The test
setup has been specially developed for efficient use in maintenance measurements, production and
quality control. Thanks to it’s high precision, the system is also ideal for laboratory and development
use.
Once a measurement on a specific device is done I can be recalled and repeated in the same way
and results can be compared graphically. So the system shows fast and easy a trending analysis of
your equipment under test.
1.3 Hardware
The measuring instrument is fully automatically balanced and the measurement values are calculated
and displayed. The measuring instrument is provided with two measurement inputs, HV Supply, HV
Ground and Safety Ground. Over 20 various parameters can be measured respectively calculated.
The instrument , as a double vector meter, recognises the type of test object ( inductive / capacitive)
and determines and displays its values automatically.
Advanced noise reduction is provided for field measurements where the measurement results might
otherwise be falsified due to interferences.
The combination of the measuring instrument with built-in high voltage supply, standard capacitor C
N
and all suitable connection cables provides the user with a complete measurement system.