IET Labs 1404 Series Operation Manual Download Page 7

Contents

Chapter 1 Introduction ..............................................................................1

1.1  Description of the 1404 Series .............................................................................. 1

Chapter 2 Specifi cations ...........................................................................2

Specifi cations  ................................................................................................................ 2

Chapter 3 Operation ..................................................................................5

3.1  Initial Inspection and Setup .................................................................................. 5

3.2  Connections to Capacitor ...................................................................................... 5

3.3  Temperature Coeffi

  cient ........................................................................................ 5

3.4  Temperature Cycling ............................................................................................. 6

3.5  Design ................................................................................................................... 6

3.6  Environmental Conditions .................................................................................... 6

3.6.1  Operating Temperature ............................................................................... 6

3.6.2  Storage Temperature ................................................................................... 6

3.7  Shipping and Handling ......................................................................................... 6

Chapter 4 Maintenance ..............................................................................7

4.1  Preventive Maintenance ........................................................................................ 7

4.2  Calibration ............................................................................................................. 7

4.2.1  Calibration Interval ..................................................................................... 7

4.2.2  General Considerations ............................................................................... 7

4.2.3  Calibration Procedure ................................................................................. 7

4.4  Calibration with GenRad 1620 or AH2500A ........................................................ 8

4.5  Replaceable Parts List ........................................................................................... 9

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Summary of Contents for 1404 Series

Page 1: ...MENT Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC 1404 Series Primary Capacitance Standard Operation Manual Copyright 2022 IET Labs Inc Visit www ietlabs com f...

Page 2: ...PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC...

Page 3: ...t 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 shall n...

Page 4: ...002 96 EC This product complies with the WEEE Directive 2002 96 EC marking requirements The a xed label indicates that you must not discard this electrical electronic product in domestic household was...

Page 5: ...ons contained in the warnings must be followed CAUTION DO NOT Operate in an Explosive Atmosphere Do not operate the instrument in the presence of in ammable gasses or fumes Operation of any electrical...

Page 6: ...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 w...

Page 7: ...ature Coe cient 5 3 4 Temperature Cycling 6 3 5 Design 6 3 6 Environmental Conditions 6 3 6 1 Operating Temperature 6 3 6 2 Storage Temperature 6 3 7 Shipping and Handling 6 Chapter 4 Maintenance 7 4...

Page 8: ...vi...

Page 9: ...t the assembly is mounted in a heavy brass container which after evacuation is lled with dry nitrogen under pressure slightly above atmospheric and sealed The container is mounted on an aluminum panel...

Page 10: ...ied with each capacitor giving the measured direct capacitance at 1 kHz 30 Vac and 23 1 C Temperature Coe cient of Capacitance A measured value with and accuracy of 1 ppm C is given on the certi cate...

Page 11: ...A 1000 pF Observe all safety rules when working with high voltages or line voltages Connect the shield to earth ground in order to maintain the case at a safe voltage Whenever hazardous voltages 45 V...

Page 12: ...4 1404 Series 4 Specifications...

Page 13: ...have 2 bnc connectors labeled HI and LO as shown in gure 3 1 Figure 3 1 1404 capacitor standard with bnc connectors Equivalent circuit showing direct capacitance CD and average values of residual ind...

Page 14: ...lates that make up the capacitor are her metically sealed in a can lled with dry nitrogen to minimize e ects of both humidity and barometric pressure The 1404 capacitors show very small changes with o...

Page 15: ...rval The recommended 1404 Series calibration interval is twelve 12 months The calibration procedure may be carried out by the user if a calibration capability is available by IET Labs or by a certi ed...

Page 16: ...l should be maintained This connection mimics the connection on the IET GenRad 1404 Standard Capacitor 2 Determine and employ proper metrological practices Allow a con dence band for the uncer tainty...

Page 17: ...9 1404 Series 9 Maintenance 4 4 Replaceable Parts List There are no replaceable parts on the 1404 Series Contact IET Labs at for an RMA should service be required at https www ietlabs com...

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