IET Labs HRRS-Q-3-1M, HRRS-Q-4-10M, HRRS-Q-4-1M, HRRS-Q-3-100M, HRRS-Q-5-10k User And Service Manual

♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦

HRRS SERIES

High Resistance

Decade Substituter

User and Service Manual

HRRS im/January 2013

IET LABS, INC.

Copyright © 2013 IET Labs, Inc.

Visit www.ietlabs.com for manual revision updates

www.ietlabs.com

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IET LABS, INC.

www.ietlabs.com

Email: [e-mail]

TEL: [phone] • FAX: [phone]

HRRS Series

WARRANTY

We warrant that this product is free from defects in material and workmanship and, when properly used,
will perform in accordance with applicable IET speci cations. If within one year after original shipment,
it is found not to meet this standard, it will be repaired or, at the option of IET, replaced at no charge when
returned to IET. Changes in this product not approved by IET or application of voltages or currents greater
than those allowed by the speci cations shall void this warranty. IET shall not be liable for any indirect,
special, or consequential damages, even if notice has been given to the possibility of such damages.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE.

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HRRS Series

Dangerous voltages may be present inside this instrument. Do not open the case

HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT

WHENEVER HAZARDOUS VOLTAGES (> 45 V) ARE USED, TAKE ALL MEASURES TO

WARNING

OBSERVE ALL SAFETY RULES

WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES.

Refer servicing to qualifi ed personnel

AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS.

USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE

CONDUCTORS WHEN USING THIS INSTRUMENT.

WHEN WORKING WITH HIGH VOLTAGES, POST WARNING SIGNS AND

Use extreme caution when working with bare conductors or bus bars.

KEEP UNREQUIRED PERSONNEL SAFELY AWAY.

CAUTION

DO NOT APPLY ANY VOLTAGES OR CURRENTS TO THE TERMINALS OF THIS

INSTRUMENT IN EXCESS OF THE MAXIMUM LIMITS INDICATED ON

THE FRONT PANEL OR THE OPERATING GUIDE LABEL.

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Table of Contents

Chapter 1 Introduction

1.1 Introduction ........................................................................................................... 1

Chapter 2 Specications

2.1 Specications ........................................................................................................ 2

2.2 Ordering Information ............................................................................................ 3

Chapter 3 Operation

3.1 Initial Inspection and Setup .................................................................................. 5

3.2 Dial Setting ........................................................................................................... 5

3.3 Environmental Conditions .................................................................................... 5

3.4 Storage .................................................................................................................. 5

Chapter 4 Maintenance

4.1 Maintainability and Reliability ............................................................................. 6

HRRS Series

4.2 Preventive Maintenance ........................................................................................ 6

4.3 Verication of Performance .................................................................................. 6

4.3.1 Calibration Interval ..................................................................................... 6

4.3.2 General Considerations ............................................................................... 6

4.3.3 Calibration Procedure ................................................................................. 7

4.4 Schematic .............................................................................................................. 7

4.5 Replaceable Parts .................................................................................................. 8

Figures and Tables

Figure 1-1: HRRS Series High Resistance Decade Substituter ...............1

Figure 2-1: HRRS sample label ................................................................4

Figure 4-1: HRRS Series Schematic Diagram .........................................7

Table 4-1: Replaceable Parts ...................................................................8

Figure 4-2: Replaceable Parts .................................................................8

Table of Contents

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