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1. 0 5 43 Verification Of Performance 5 A Dick 1 E 5 4 2 General Considerations 5 453 i is 6 T VN u E E xu n 6 45 Replaceable Panga uu 7 Figures and Tables Figure 1 1 HRRS 10kV Series High Resistance Decade Substituter 1 Figure 2 1 HRRS 10KV sample label 3 Figure 4 1 HRRS 10kV Series Schematic Diagram 6 Table 4 1 Replaceable Parts 7 Figure 4 2 Replaceable Parts 7 Table of Contents lil HRRS 10kV Series This page is intentionally left blank Table of Contents HRRS 10kV Series Chapter 1 INTRODUCTION 1 1 Overview The High Resistance 10 kV Decade Substituter HRRS 10kV Series Figure 1 1 is a family of instruments that answers the need of the calibration and test community for decades and working stan dards that go up to 10 TQ offering a broad choice of high range excellent performance resistance sources High values of resistance are available for use at high voltages without sacrificing accuracy stability and temperature and power coeff
2. PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT 4 HRRS 10kV SERIES High Resistance 10kV Decade Substituter User and Service Manual gt ss Ss IED HRRS 10kV SERIES HIGH VOLTAGE HIGH RESISTANCE DECADE SUBSTITUTER Copyright 2011 IET Labs Inc Visit www ietlabs com for manual revision updates HRRS 10kV im March 2011 534 Main Street Westbury NY 11590 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 IET LABS INC I Standards Decades Strobes Sound Level Meters Bridges www ietlabs com 534 Main Street Westbury NY 11590 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 HRRS 10kV 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 itis 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 specifications shall void this warranty 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
3. next higher decade For example a setting of 3 6 10 0 10 Q becomes 3 3 0 6 6 and a setting of 10 10 10 10 10 10 becomes 10 1 10 10 10 10 0 e e O e 622 622 A 62 O QO OQO 3 3 Environmental Conditions For optimal accuracy the decade box should be used in an environment of 23 C It should be allowed to stabilize at that temperature after any significant temperature variation Humidity should be maintained at laboratory condi tions This is especially important if high resistances are involved 3 4 Storage If this instrument is to be stored for any lengthy period of time it should be sealed In plastic and stored in a dry location It should not be subjected to temperature extremes beyond the specifications Extended expo sure to such temperatures can result In an irreversible change In resistance and require recalibration Operation HRRS 10kV Series Chapter 4 MAINTENANCE 4 1 Maintainability and Reliability It is possible to maintain Model HRRS 10kV in definitely It is reliable due to its closed design and sealed switches and resistors The unit is resistant to electromagnetic interference EMI because of its metal enclosure 4 2 Preventive Maintenance Keep the unit in a clean environment This will help prevent possible contamination The Model HRRS 10kV is packaged in a closed case and uses completely sealed switches This limits the entry of contaminants and
4. 10k 10kV 10 specify accuracy replace with Q B or F as required Options RM Rack mountable case for standard 19 rack K Kelvin type 4 terminal posts RO Rear output P o C Go o O HRRS 10kV SERIES HIGH RESISTANCE 10kV_ DECADE SUBSTITUTER OPERATING GUIDE CONSULT INSTRUCTION MANUAL FOR PROPER INSTRUMENT OPERATION gt Zero Resistance Max voltage Maximum Temperature Voltage s step Voltage coefficient coefficient Resistor Type eo ii perdecade p p V V zppm 2C zppm v Environmental Conditions 100 100 Operating Conditions 10 C to 23 C lt 50 RH 1000 5 o r rewound non inductive G snn ee 10 pS Oo j 1 Wirewound non inductive Terminals 100 lt 5 0 10 n Wirewound non inductive Two five way binding posts on 2 special low 1 MO 01 0 5 0 10 Wiewound non inductive leakage Kel F insulating sockets and one metal 10 MO A ground binding post electrically connected to 100 MQ TGA 10 GQ 100 GO Keep unit in a sealed environment when 1TO not in use Maintain binding post area TOTS aga WARNING MODEL _HRRS B 6 10M 10kV__ SN B2 1104509 Observe all safety rules when working with high voltages or line voltages Connect the G terminal to earth ground in order to maintain the case at a s
5. FITNESS FOR ANY PARTICULAR PURPOSE HRRS 10kV Series AN WARNING AN 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 qualified personnel HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT WHENEVER HAZARDOUS VOLTAGES gt 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 working with bare conductors or bus bars WHEN WORKING WITH HIGH VOLTAGES POST WARNING SIGNS AND KEEP UNREQUIRED PERSONNEL SAFELY AWAY AN CAUTION AN 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 HRRS 10kV Series Table of Contents Chapter 1 Introduction b ON a U u u u u a A E IE E E EE I Chapter 2 Specifications DP FC 0 R 2 Ordering IRS 3 Chapter 3 Operation 3 1 Initial Inspection and Setup u aa 4 32 Dial Sollina u u u u Gua Cn Seen eo eT 4 My iO aerial A 4 0 S od ee SI 4 Chapter 4 Maintenance 41 Maintainability and Reliability 5
6. dust to the inside of the switches If it is maintained in a clean or air condi tioned environment cleaning will seldom be required The front panel should be periodically cleaned to eliminate any leakage paths from near or around the binding posts To clean the front panel Wipe the front panel clean using alcohol and a lint free cloth Maintenance 4 3 Verification of Performance 4 3 1 Calibration Interval The HRRS 10kV Series instruments should be verified 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 certified calibration laboratory If the user should choose to perform this procedure then the considerations below should be observed 4 3 2 General Considerations It is important whenever testing HRRS 10kV Series Decade Units to be aware of the capabili ties and limitations of the test instruments used A resistance bridge may be employed and there are direct reading resistance meters or digital multimeters available that can verify the accuracy of these units especially when used in conjunction with standards that can serve to confirm or improve the accuracy of the testing instrument Such test instruments must have a 4 1 TUR capabil ity for each value calibrated Note that the accuracy varies for different decades A number of commercial bridges and meters exist that can perform th
7. afe voltage Whenever hazardous voltages gt 45 V are used take all measures to avoid accidental contact with any live components a Use maximum insulation and minimize the use of bare con ojo k 10 kQ 100 kQ 1 MO 10 MQ 100 MQ 1 GO 10 GO 100 GO 1TO ojo 5 ductors b Remove power when adjusting switches Post warning signs and keep personnel safely away 0 IET IET LABS INC 534 Main Street Westbury NY 11590 516 334 5959 800 899 8438 Fax 516 334 5988 CAGE CODE 62015 www ietlabs com Figure 2 1 HRRS 10kV sample label Specifications 3 HRRS 10kV Series Chapter 3 OPERATION 3 1 Initial Inspection and Setup This instrument was carefully inspected before ship ment It should be In proper electrical and mechanical order upon receipt An OPERATING GUIDE is attached to the case of the instrument to provide ready reference to specifications 3 2 Dial Setting Whenever the dials are used in positions 0 9 the resulting resistance 1s read directly Both the decimal point and the steps are clearly marked on the panel For additional flexibility and range each decade provides a 10 position setting This 10 position on any one decade equals the 1 position on the next higher decade It adds about 11 to the nominal total decade resistance To determine the resistance obtained when one or more 10 settings are used simply add 1 to the
8. d one metal ground binding post electrically connected to the case 2 Specifications HRRS 10kV Series ORDERING INFORMATION Total Resistance 111 MQ 1 11 GO 11 1 GO 111 GO 1 11 TO 11 1 TO 111 1 MO 1 111 GO 11 11 GO 111 1 GO 1 111 TO 11 11 TO 111 11 MO 1 111 1 GO 11 111 GO 111 11 GO 1 111 1 TO 11 111 11 111 1 MQ 111 111 MQ 1 111 GO 11 111 1 GO 111 111 GO 1 111 11 TO 11 111 1 TO Total Number of Decades HRRS 7 10 10kV 100 HRRS 7 100 10kV 100 O HRRS 7 1k 10kV 1 HRRS 3 100k 10kV HRRS 3 1M 10kV HRRS 3 10M 10kV HRRS 3 100M 10kV HRRS 3 1G 10kV HRRS 3 10G 10kV HRRS 4 10k 10kV HRRS 4 100k 10kV HRRS 4 1M 10kV HRRS 4 10M 10kV HRRS 4 100M 10kV HRRS 4 1G 10kV HRRS 5 1k 10kV HRRS 5 10k 10kV HRRS 5 100k 10kV HRRS 5 1M 10kV HRRS 5 10M 10kV HRRS 5 100M 10kV HRRS 6 10 10kV HRRS 6 100 10kV HRRS 6 1k 10kV HRRS 6 10k 10kV HRRS 6 100k 10kV HRRS 6 1M 10kV HRRS 6 10M 10kV 7 L T T 7 100 kQ 1 MQ HRRS 7 100k 10kV HRRS 7 1M 10kV 7 5 8 10 10 111111100 8 HRRS 8 100 10kV 111111160 HRRS 8 1k 10kV 111700 ko HRRS 8 10k 10kV 111111160 HRRS 8 100k 10kV 11 111 179 100k 98 9 _ 9 U HRRS 7 10k 10kV 111160 7 100 100 Q HRRS 9 10 10kV 100 HRRS 9 100 10kV 1000 HRRS 9 1k 10kV 1 0 HRRS 9
9. icients of resistance The HRRS 10kV Series employs state of the art precision resistors of various types It is designed specifically for operation at high voltage with very low leakage to minimize degradation of accuracy The standard models offer a choice of one to nine decades The panels are clearly labeled showing the step size and maximum allowable applied input for each decade Custom requirements outside of the standard models can be satisfied dep HRRS 10kV SERIES Aot kV MAX DANGER HIGH VOLTAGES A A Watan n bindin g pos 4 AX MAY BE PRESENT HIGH VOLTAGE HIGH RESISTANCE DECADE SUBSTITUTER The binding posts are insulated with Kel F high resistance non moisture absorbing material to ensure low leakage With a resolution as low as 10 Q and a maximum available resistance of 10 TQ the HRRS 10kV Series may be used for exacting precision high value resis tance applications that require voltages of up to 10 kV Applications include calibration of meters and meg ohmmeters and checking of electrochemical and bio medical sensors and instruments These instruments are useful wherever high resistances are required such as in testing high impedance amplifiers and the insulation of low power circuits 5000 V per STEP or 10 kv MAX not in use ronet A searial leaka ge Figure 1 1 HRRS 10kV Series High Resistance High Voltage Decade Substituter Introduction HRRS 10kV Series Cha
10. is task consult IET Labs It is important to allow both the testing instrument and the HRRS 10kV Substituter to stabilize for a number of hours at the nominal operating tempera ture of 23 C and at nominal laboratory conditions of humidity There should be no temperature gradients across the unit under test HRRS 10kV Series 4 5 Replaceable Parts 100 GQ step Decade Switch Assembly 1 TQ step Decade Switch Assembly Table 4 1 Replaceable Parts HRRS 10kV SERIES HIGH VOLTAGE HIGH RESISTANCE DECADE SUBSTITUTER 0 0 J 100 GQ STEPS 1 0 STEPS 100 Ma STEPS 1 Ga STEPS 57 1 000 V Figure 4 2 Replaceable Parts Maintenance 7
11. pter 2 SPECIFICATIONS For convenience to the user the pertinent specifications are given in an OPERATING GUIDE affixed to the case of the instrument Figure 2 1 shows a typical example SPECIFICATIONS Resistance Total decade mee tage Temperature Stability pa 8 perstep Voltage coefficient coefficient Resistor 8 tppmiv FPPM ma s 01 280 3 0 30 25 15 Wirewound non inductive O 5 Wirewound non inductive 30 Wirewound non inductive 700 Wirewound non inductive 2 Wirewound non inductive 10000 15 High voltage fm 6 S 8 251 o w 0 0 0 0 2300 0 10 000 High voltage film 10 000 High voltage film 10 000 High voltage film 10 000 High voltage film 10 000 100 High voltage film 1 TO 10 10 000 High Voltage film 0 0 0 0 0 1 1 15 15 25 25 25 Zero Resistance lt 3 mQ per decade Environmental Conditions 3 4 Decade 43 2 cm W x 14 2 cm H x 13 5 cm D 3 4 kg Operating Conditions 10 C to 23 C lt 50 RH Units 17 5 6 5 3 7 5 Ibs Storage Conditions 40 C to 70 C 48 2 cm W x 22 2 cm H x 33 cm D S kg Units 19 x 8 75 x 13 11 Ibs Terminals _ 8 9 Decade 43 7 cm W x 30 7 cm H x 20 3 cm 7 7 kg Two five way binding posts on 2 special low Units 17 2 12 1 x 8 17 Ibs leakage Kel F insulating sockets an

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