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PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT
HPRS SERIES
High-Power Decade
Resistance Substituter
User and Service Manual
Copyright © 2018 IET Labs, Inc.
Visit www.ietlabs.com for manual revision updates
HPRS im/Sept. 2018
www.ietlabs.com
IET LABS, INC.
Email: info@ietlabs.com
TEL: (516) 334-5959 • FAX: (516) 334-5988
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Table of Contents
Summary of Contents for IET Labs HPRS Series
- Page 1 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT HPRS SERIES High-Power Decade Resistance Substituter User and Service Manual Copyright © 2018 IET Labs, Inc. Visit www.ietlabs.com for manual revision updates HPRS im/Sept. 2018 www.ietlabs.com IET LABS, INC. Email: info@ietlabs.com TEL: (516) 334-5959 • FAX: (516) 334-5988...
- Page 2 IET LABS, INC. Email: info@ietlabs.com TEL: (516) 334-5959 • FAX: (516) 334-5988...
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Page 3: Warranty
HPRS 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: Revision History
HRRS Series Revision History: Date Description March 2013 Initial release Sept 2018 Major update for standardization of marking and required information in the manual... -
Page 5: Safety Summary
Such noncompliance would also violate safety standards of design, manufacture, and intended use of the instrument. IET Labs assumes no liability for the customer’s failure to comply with these precautions. The HPRS Series comply with INSTALLATION CATEGORY I as well as POLLUTION DEGREE 2 as defi... - Page 6 To avoid the danger of introducing additional hazards, do not install substitute parts or perform unauthorized modifi cations to the instrument. Return the instrument to an IET Labs for service and repair to ensure that safety features are maintained in operational condition.
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Page 7: Warning
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 (>... -
Page 8: Table Of Contents
Contents WARRANTY .................... 3 Revision History ..................4 Safety Summary ..................5 WARNING ....................7 Chapter 1 INTRODUCTION ................9 Chapter 2 SPECIFICATIONS ................ 10 Chapter 3 INSTALLATION ................12 3.1 Initial Inspection ..............12 3.2 Installation ................12 3.3 Storage ................12 Chapter 4 OPERATION .................. -
Page 9: Chapter 1 Introduction
With a resolution as low as 1 m and a maximum This series is part of a family of resistance substitut- resistance of 10 M , the HPRS Series may be used ers suited to fi ll many engineering and testing needs. -
Page 10: Specifications
HPRS Series Chapter 2 SPECIFICATIONS SPECIFICATIONS Accuracy: Total Max power Temperature Resistance Resistor after subtraction of zero resistance, at 23°C; traceable to SI decade per step* coeffi cient per step current* Type Option F: ±(1% + 20 mΩ) resistance (ppm/°C) Option C: ±(0.5% + 20 mΩ) - Page 11 HPRS Series SPECIFICA TIONS...
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Page 12: Chapter 3 Installation
IET Labs and refer to the warranty be provided that will not expose it to abuse and keep at the beginning of this manual. IET Labs will work it protected from temperature extremes and contami- with you until you are satisfi ed that your instrument nants. -
Page 13: Chapter 4 Operation
OPERATION 4.1 General Considerations Electrical Considerations The HPRS Series Decade unit provides three termi- nals labeled H (high), L (low), and G (ground.) The As a good safety practice, the case should be grounded H and L terminals are connected to the ends of the using the G terminal. -
Page 14: Chapter 5 Maintenance
5.2.3 Procedure 5.2.1 Calibration Interval Confi rm the zero resistance of the unit. The HPRS Series instruments should be verifi ed for performance at a calibration interval of twelve (12) Determine the allowable upper and lower months. This procedure may be carried out by the... -
Page 15: Schematic And Replacement Parts
Replacement, and Reassembly It is recommended that service be performed only by 5.6 Customer Service IET Labs or by qualifi ed personnel. The IET warranty attests to the quality of materials 5.5.1 Disassembly and workmanship in our products. For application assistance or if diffi... -
Page 16: Instrument Return
HPRS Series 5.7 Instrument Return To safeguard an instrument during shipment, please Before returning an instrument to IET for service please call our Service Department at 516-334-5959 use packaging that is adequate to protect it from damage, (i.e., equivalent to the original packaging) for Return Material Authorization (RMA) or visit www.ietlabs.com to request an RMA online. - Page 17 HPRS Series Figure 5.1. HPRS Series Schematic Diagram MAINTENANCE...