Time Electronics 5070 User Manual

Time Electronics

5070 DuctorCal

Ductor Tester and Micro-Ohmmeter Calibrator

Technical Manual

V5.1 19/03/12 Time Electronics Ltd

Botany Industrial Estate, Tonbridge, Kent, TN9 1RH

Tel: [phone] Fax: [phone]

Email: [e-mail]

Web Site: www.TimeElectronic s .com

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Contents

1. General Description ........................................................................................... 3

2. Specifications ..................................................................................................... 4

2.1. Technical Specification ...................................................................................... 4

2.2. General Specification ......................................................................................... 4

3. Operation ............................................................................................................ 5

3.1. Example Connection .......................................................................................... 6

3.2. Operating Precautions ....................................................................................... 6

4. Guarantee & Servicing ....................................................................................... 7

All Time Electronics' instruments are subjec t to continuous development and improvem ent and in consequence
may incorporate minor detail changes from the information contained herein.

5070 Technical Manual

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1. General Description

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The 5070 is a portable instrument suitable for calibrating high current Ductor Testers and
Micro-Ohm meters. It contains 5 sets of high current rating standard resistors which simulate
the resistance being measured.

It has full 4 terminal capabilities with extra large terminals for the current connection.
Gold plated terminals are used throughout to reduce contact resistance and thermal
emfs (for dc based instruments).

It has a substantial maximum continuous current rating but is also suitable for much
higher transient/pulse test currents.

The internal resistance standards are all high quality manganin types with good long
term stability and temperature coefficients.

5070 Technical Manual