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Agilent Technologies

Agilent E7002, E7012,
and E7014 Emergency
Discharge Unit

Reference Guide

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Summary of Contents for E7002

Page 1: ...Agilent Technologies Agilent E7002 E7012 and E7014 Emergency Discharge Unit Reference Guide...

Page 2: ...ied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and li...

Page 3: ...on Description 12 Features 12 Description 12 Specification 13 3 Operation and Testing Operation 16 To initiate a magnet quench 16 To test the condition of the battery and heater circuit 16 Periodic Te...

Page 4: ...4 E7002 E7012 and E7014 Emergency Discharge Unit 7 Connections Connections EDU 28 PSU 28 Helium 28 Test 28 Magnet 29 Quench 30 Remote 30...

Page 5: ...5 Agilent E7002 E7012 and E7014 Emergency Discharge Unit Reference Guide Agilent Technologies 1 Introduction Safety 6 Important Notices 8 Compliance Notice 9 Contact Information 10...

Page 6: ...e rated at T100mAL 250V WARNING Isolate or disconnect equipment from mains supply before opening this unit for any reason LIVE PARTS INSIDE This equipment must be connected to an earthed mains supply...

Page 7: ...tage select drum and two fuse trays To select the supply voltage pull out the drum and rotate until the appropriate lettering is uppermost i e in line with the drum slots and replace When the socket f...

Page 8: ...are available upon request see Contact Information on page 10 FCC Notice Federal communications commission statement on Class A This unit has been tested and found to comply with the limits for a Clas...

Page 9: ...nd LV low voltage directives of the European Community This unit is to be installed and operated as detailed Any modification or maintenance procedure undertaken that is not approved by Agilent could...

Page 10: ...click the following link select your country and then click Go http www chem agilent com en us ContactUS Pages Contact Us aspx USA Address Agilent Technologies Inc 5301 Stevens Creek Blvd Santa Clara...

Page 11: ...11 Agilent E7002 E7012 and E7014 Emergency Discharge Unit Reference Guide Agilent Technologies 2 Description and Specification Description 12 Specification 13...

Page 12: ...rder to run down a superconducting magnet in case of any emergency This is achieved by passing current through a heater built into the magnet windings A mains derived dc voltage drives the current int...

Page 13: ...trol input TTL CMOS compatible Test circuit monitor output TTL CMOS compatible B0 switch heater current 19 to 100 mA variable Mains voltage 100 120 230 240V selectable Mains input current 250 mA 100 1...

Page 14: ...14 E7002 E7012 and E7014 Emergency Discharge Unit 2 Description and Specification...

Page 15: ...15 Agilent E7002 E7012 and E7014 Emergency Discharge Unit Reference Guide Agilent Technologies 3 Operation and Testing Operation 16 Periodic Testing 17...

Page 16: ...also be initiated by applying a TTL input signal via the 9 D PSU socket A TTL output signal is available to indicate heater integrity making it suitable for inclusion in digital control systems Optio...

Page 17: ...minimum of 10V must be developed across the magnet quench heater load which indicates that 1A of current is flowing This current flows for 30 seconds then stops 2 The remote quench buttons must also...

Page 18: ...B0 DUMP button to stop the flow of current Check the batteries Check the dated tested label on the batteries to ensure that they are within their service life refer to Battery Care section When you a...

Page 19: ...nit Reference Guide Agilent Technologies 4 Troubleshooting Problems 20 Solutions 21 In this section some common problems are discussed that will help the Installation Engineer to find the source of th...

Page 20: ...PCB mounted HEATER OK LED not illuminated when TEST button is pressed Loss of F4 PCB mounted Heater and cable resistance 18 Heater open circuit BATTERY OK LED not illuminated when TEST button pressed...

Page 21: ...t the fault then check the continuity and resistances at the cryostat end To change the PCB mounted fuses 1 Remove top panel of the unit 2 Locate the fuse 3 Remove fuse insulation cover then remove th...

Page 22: ...22 E7002 E7012 and E7014 Emergency Discharge Unit 4 Troubleshooting...

Page 23: ...ilent Technologies 5 User Serviceable Parts COMPONENT DESCRIPTION PART NUMBER B1 12V 1 2 A h battery P188160000S B2 6 V 1 2 A h battery P188160001S F1 F2 5 X 20mm T125mA 250V fuse or 5 X 20mm T250mA 2...

Page 24: ...24 E7002 E7012 and E7014 Emergency Discharge Unit 5 User Serviceable Parts...

Page 25: ...ce Guide Agilent Technologies 6 Battery Care Manufacturer s data shows that the batteries have a service life of between 4 and 5 years It is recommended that the batteries are replaced after the minim...

Page 26: ...removing fixing screws Lift out old batteries 3 Fit new batteries and mark with date of installation recording month and year 4 Replace battery clamp firmly 5 Reconnect terminals leads and terminals...

Page 27: ...27 Agilent E7002 E7012 and E7014 Emergency Discharge Unit Reference Guide Agilent Technologies 7 Connections Connections EDU 28...

Page 28: ...lization connections on the rear of the instrument 1 SWITCH HEATER VE 2 TEST BUTTON INPUT 3 HEATER CCT CHECK OUTPUT 4 ACTIVATE B0 INPUT 5 MAGNET VOLTS VE 6 SWITCH HEATER VE 7 OV 8 V BATTERY OUTPUT 9 M...

Page 29: ...WITCH HTR 9 REMOTE LATCH RESET 10 MAGNET VOLTS VE 11 MAGNET VOLTS VE 12 QUENCH BUTTON RELAY CONTACT 13 QUENCH BUTTON RELAY CONTACT 14 OV EDU 15 BO SWITCH HTR 1 PT100 2 TEMP SENSOR COMMON 3 AB270 4 AB2...

Page 30: ...Quench Remote 18 PROBE 1 V 19 PROBE 1 I 20 PROBE 1 V 21 PROBE 1 I 22 PROBE 2 V 23 PROBE 2 I 24 PROBE 2 V 25 PROBE 2 I 1 OUTPUT VE 2 N C 3 OUTPUT VE 1 SW1 1 2 SW1 1 3 SW2 1 4 SW2 1 5 SW3 1 6 SW3 1 7 N...

Page 31: ...Connections 7 E7002 E7012 and E7014 Emergency Discharge Unit 31 15 BULB...

Page 32: ......

Page 33: ...Agilent Technologies Agilent Technologies Inc Printed in USA Rev B Dec 2012 9100383500 9100383500...

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