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PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT

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TEL: (516) 334-5959 • FAX: (516) 334-5988

www.ietlabs.com

IET LABS, INC.

Visit www.ietlabs.com for manual revision updates

HPRS im/Sept. 2018

HPRS SERIES

High-Power Decade

Resistance Substituter

User and Service Manual

Содержание HPRS Series

Страница 1: ...info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC Copyright 2018 IET Labs Inc Visit www ietlabs com for manual revision updates HPRS im Sept 2018 HPRS SERIES High Power...

Страница 2: ...Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC...

Страница 3: ...placed 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...

Страница 4: ...4 HRRS Series Revision History Date Description By March 2013 Initial release LB Sept 2018 Major update for standardization of marking and required information in the manual BB...

Страница 5: ...ategory I or it is not marked with a measurement category its measurement terminals must not be connected to line voltage mains and it is not designed for use as for measurements within measurement ca...

Страница 6: ...nent replacement and internal adjustments must be made by quali ed maintenance personnel only DO NOT substitute parts or modify the instrument There are no user serviceable parts inside Refer servicin...

Страница 7: ...45 V ARE USED TAKE ALL MEASURES TO AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE CONDUCTORS WHEN USING THIS INSTRUMENT Use extreme caution when...

Страница 8: ...trical Considerations 13 4 4 Dial Setting 13 4 5 Environmental Conditions 13 Chapter 5 MAINTENANCE 14 5 1 Preventive Maintenance 14 5 2Veri cation of Performance 14 5 2 1 Calibration Interval 14 5 2 2...

Страница 9: ...on of meters and instru ments HPRS instruments are useful development tools wherever precise resistances with high power handling capacity are required It is important to keep the amount of time power...

Страница 10: ...99 99 k 7 0 01 HPRS F 7 0 1 999 999 9 k 7 0 1 HPRS F 7 1 9 999 999 M 7 1 HPRS F 0 001 99 999 999 k 8 0 001 HPRS F 8 0 01 999 999 99 k 8 0 01 HPRS F 8 0 1 HPRS 200W 9 999 999 9 M 8 0 1 For 0 5 accuracy...

Страница 11: ...Zero Resistance 5 m per decade Terminals Two five way binding posts and one ground post electrically connected to case HPRS SERIES HIGH POWER DECADE RESISTANCE SUBSTITUTER WARNING Observe all safety...

Страница 12: ...pping of the instrument should become necessary 3 2 Installation For a rack mounted model installation in a 19 inch rack may be made using the slots in the rack mounting ears A mounting location that...

Страница 13: ...30 C Power Time on Time o 101 W continuous none 101 W 5 minutes 10 minutes Exceeding the time on can cause damage to the resis tors If continuous use is required to full rated power see DRS 900 High P...

Страница 14: ...apabilities and limitations of the test instruments used There are a some bridges and direct reading resistance me ters or digital multimeters available that can verify the accuracy of these units esp...

Страница 15: ...emove a decade switch assembly proceed as follows 1 Label and unsolder the bus wires connecting the switch assembly to the resistive loads 2 Loosen the screw holding the knob on the switch shaft and r...

Страница 16: ...rranty will be repaired at no charge For any questions on repair costs or shipment instruc tions please contact our Service Department at the above number or visit www ietlabs com to request an RMA on...

Страница 17: ...17 MAINTENANCE HPRS Series Figure 5 1 HPRS Series Schematic Diagram...