IET Labs HRRS Series User And Service Manual
High resistance decade substituter
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PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT
HRRS SERIES
High Resistance
Decade Substituter
User and Service Manual
Copyright © 2017 IET Labs, Inc.
Visit www.ietlabs.com for manual revision updates
HRRS im/June 2017
IET LABS, INC.
GlobalTestSupply
www.
.com
Find Quality Products Online at:
sales@GlobalTestSupply.com
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Summary of Contents for IET Labs HRRS Series
- Page 1 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT HRRS SERIES High Resistance Decade Substituter User and Service Manual Copyright © 2017 IET Labs, Inc. Visit www.ietlabs.com for manual revision updates HRRS im/June 2017 IET LABS, INC. GlobalTestSupply www. .com Find Quality Products Online at:...
- Page 2 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT IET LABS, INC. GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 3 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 specifi 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.
- Page 4 HRRS Series WARNING OBSERVE ALL SAFETY RULES WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES. Dangerous voltages may be present inside this instrument. Do not open the case Refer servicing to qualifi ed personnel HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT WHENEVER HAZARDOUS VOLTAGES (>...
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Page 5: Table Of Contents
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... - Page 6 HRRS Series This page is intentionally left blank. Table of Contents GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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Page 7: Chapter 1 Introduction
With a resolution as low as 10 Ω and a maximum available resistance of over 1 TΩ (= 1000 GΩ; = 1000 kMΩ), the HRRS Series may be used for exacting precision high-value resistance applications. Steps up to 10 TΩ are also available from IET Labs,... -
Page 8: Chapter 2 Specifi Cations
HRRS Series Chapter 2 SPECIFICATIONS For convenience to the user, the pertinent specifi cations are given in an OPERATING GUIDE affi xed to the case of the instrument. Figure 2.1 shows a typical example. 2.1 Specifi cations Accuracy Total Max voltage... -
Page 9: Ordering Information
HRRS Series 2.2 Ordering Information Number of Number of Model Total resistance Resolution Model Total resistance Resolution decades decades HRRS-*-3-1M 1.11 G 1 M 100 HRRS-*-7-100 1.111 111 G HRRS-*-3-10M 11.1 G 10 M HRRS-*-7-1k 11.111 11 G 1 k... -
Page 10: Figure 2-1: Hrrs Sample Label
HRRS Series Specifi cations GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 11: Chapter 3 Operation
HRRS Series Chapter 3 OPERATION and a setting of 10-10-10-l0-10.10 becomes: 3.1 Initial Inspection and Setup This instrument was carefully inspected before ship- 0 0 0 0 0 . 0 ment. It should be in proper electrical and mechanical 0 0 0 0 . -
Page 12: Chapter 4 Maintenance
There should be no temperature gradients across the unit under test. 4.3.1 Calibration Interval The HRRS Series instruments should be verifi ed for performance at a calibration interval of twelve (12) months. This procedure may be carried out by the user if a calibration capability is available, by IET Labs, or by a certifi... -
Page 13: Calibration Procedure
HRRS Series 4.4 Schematic WARNING Refer to Figure 4-2 for a schematic of the HRRS unit. Connect the G (GND) terminal to earth or other suitable ground in order to maintain the case at a safe voltage. W h e n e v e r h a z a rd o u s vo l t a g e s (>45 v) are used, take all measures to... -
Page 14: Replaceable Parts
HRRS Series 4.5 Replaceable Parts Model Ref IET Pt No Description BP-1000-RD Binding Post, Red BP-1000-BK Binding Post, Black BP-1000-GN Binding Post, Green HARS-X-4300-KNB Knob Assembly Not Shown HARS-X-3100 Foot Not Shown HRRS-*-SW-10 10 Ω/step Decade Switch Assembly Not Shown HRRS-*-SW-100 100 Ω/step Decade Switch Assembly... - Page 15 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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