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 © 2001 IET Labs, Inc.
HRRS im/February, 2001
IET LABS, INC.
www.ietlabs.com
534 Main Street, Westbury, NY 11590
TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988
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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 © 2001 IET Labs, Inc. HRRS im/February, 2001 IET LABS, INC. www.ietlabs.com 534 Main Street, Westbury, NY 11590 TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988...
- 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 specifications. 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.
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Page 4: Table Of Contents
HRRS Series Contents WARRANTY ..................iii Contents ....................iv Figures and Tables ..................v WARNING ....................vi CAUTION ....................vi Chapter 1 INTRODUCTION ................1 Chapter 2 SPECIFICATIONS ................2 Chapter 3 INSTALLATION ................4 3.2 Initial Inspection ..............4 3.2 Installation ................ -
Page 5: Figures And Tables
HRRS Series Figures and Tables Figure 1.1. HRRS Series High Resistance Decade Substituter ....1 Figure 2.1 Operating Guide Affixed to Unit ........... 3 Figure 5.1 HRRS Series Schematic Diagram ........10 Table 5.1 Model Reference Codes ............11 Table 5.2 Replacement Parts List ............11 Table 5.3 Commercial and Government Entity CAGE Codes .... -
Page 6: Warning
HRRS Series WARNING OBSERVE ALL SAFETY RULES ‘WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES. ELECTRICAL SHOCK HAZARD. DO NOT OPEN CASE. REFER SERVICING TO QUALIFIED PERSONNEL. HIGH VOLTAGE MAY BE PRESENT WITH HIGH VOLTAGE OPTIONS. WHENEVER HAZARDOUS VOLTAGES (> 45 V) ARE USED, TAKE ALL MEASURES TO... -
Page 7: Chapter 1 Introduction
These instruments The HRRS Series employs state of the art precision are useful developments tool wherever small currents resistors, of various types for high accuracy, high sta- and high resistances are required, such as insulation... -
Page 8: Chapter 2 Specifications
HRRS Series Chapter 2 SPECIFICATIONS For convenience to the user, the pertinent specifications are given in an OPERATING GUIDE, shown in Figure 2.1, affixed to the case of the instrument. SPECIFICATIONS Decade Resistance Accuracy Option** Max Voltage 5 kV Max Temp. - Page 9 HRRS Series SPECIFICA TIONS...
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Page 10: Chapter 3 Installation
3.3 Repackaging for Shipment plications. If the instrument is to be returned to IET Labs, con- Save all original packing material for convenience in tact the Service Department at the number or address,... -
Page 11: Storage
HRRS Series 3.4 Storage tended exposure to such temperatures can result in If this instrument is to be stored for any lengthy pe- an irreversible change in resistance, and require riod of time, it should be sealed in plastic and stored recalibration in a dry location. -
Page 12: Chapter 4 Operation
4.1.1 General Considerations unit may be cleaned with alcohol or naphtha. The HRRS Series Decade unit provides three termi- nals labeled H (high), L (low), and G (ground.) The H and L terminals are connected to the ends of the Keep unit in a sealed environment when resistor being set. -
Page 13: Dial Setting
HRRS Series 4.2 Dial Setting and 10-10-10-10.-10 MWs become Whenever the dials are used for positions 0-9, the 1 0 0 0 0 0 . 0 resulting resistance is simply read off from the panel 1 0 0 0 0 . 0 dial setting in a direct fashion. -
Page 14: Chapter 5 Maintenance
IET Labs for informa- will not tend to collect dust. tion. -
Page 15: Procedure
2. Pry off the cap from the knob It is recommended that service be performed only by (HARS-X-4300-CAP), and remove the nut under it. IET Labs or by qualified personnel. 3. Pull off the knob (HARS-X-4300-KNB), and re- move the nut under it. - Page 16 HARS-X Series Figure 51. HRRS Series Schematic Diagram MAINTENANCE...
- Page 17 HARS-X Series MAINTENANCE...
- Page 18 HARS-X Series MAINTENANCE...
- Page 19 HARS-X Series MAINTENANCE...
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