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Summary of Contents for Bartington PA1
- Page 1 Operation Manual for PA1 Power Amplifier www.bartingtondefenceandspace.com www.bartingtondefenceandspace.com...
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Page 2: Table Of Contents
1.1. Symbols Glossary 2. Safe Use 3. Introduction 3.1 PA1 Power Amplifier Features 3.1.1. PA1 Power Amplifier Front View 3.1.2. PA1 Power Amplifier Rear View 4. PA1 Power Amplifier Installation 4.1. Test Assembly Location and Ventilation Requirements 4.2. Connecting to the HCS1 System 4.3. -
Page 3: About This Manual
BARTINGTON DEFENCE & SPACE 1. About this Manual This manual provides the information necessary to help customers install and operate the PA1 Power Amplifier. The PA1 Power Amplifier is one component of Bartington Defence & Space’ One, Two or Three-Axis Helmholtz Coil Control System. This manual should therefore be read in conjunction with: •... -
Page 4: Introduction
Should this occurs, the power will to the PA1 will be cut. In such event, it is advised to allow the unit to cool down before restarting it. To prevent the thermal cut-out from activating, the equipment should be used in a cooled temperature controlled environment (refer to Cooling) 3. -
Page 5: Pa1 Power Amplifier Features
BARTINGTON DEFENCE & SPACE 3.1 PA1 Power Amplifier Features 3.1.1. PA1 Power Amplifier Front View 1. Upper front panel 2. Current control input (takes input from signal generator) 3. Calibration controls, behind transparent plastic cover 4. Current monitor output 5. Static field offset controls 6. -
Page 6: Pa1 Power Amplifier Rear View
BARTINGTON DEFENCE & SPACE 3.1.2. PA1 Power Amplifier Rear View 11. Blank ventilation panel 12. Fastening screws 13. Coil drive output to the HC1 or HC2 Helmholtz Coils 14. Lower rear panel 15. Circuit breaker 16. Mains power input socket... -
Page 7: Pa1 Power Amplifier Installation
CU1 Control Unit. 4.3. Connecting to the HC1 or HC2 Helmholtz Coils The HC1 or HC2 Helmholtz Coils are fitted with a cable with a plug for connection to the PA1 Power Amplifier. The PA1 Power Amplifier and the HC1 or HC2 must be connected before the amplifier power is turned on. -
Page 8: Connecting To The Cu1 Control Unit
Note: The PA1 Power Amplifier varies for Helmholtz Coils with different numbers of axes. One, two, and three axis PA1 versions are available. If an HC1 has a greater number of axes than the PA1 then only the number of axes corresponding to the PA1 can be used. -
Page 9: Pa1 Power Amplifier Power
EU connector or bare ends can be specified at the time of ordering. A 16A circuit breaker is situated on the rear panel [15] which is suitable for the supply stated in the product brochure. Contact Bartington Defence & Space for advice if a lower voltage is to be used. -
Page 10: Cooling
The static field compensation should be set individually for each axis to obtain a minimum field in the centre of the coil. This should be measured by a magnetometer placed in the coil centre. Bartington Defence & Space can provide a suitable magnetometer. Page 10 of 19... -
Page 11: Method
5. Coil Calibration and Alignment Adjustment The calibration controls are mounted on the upper front panel of the PA1 Power Amplifier behind a transparent cover [19]. To gain access to the controls, the cover must be carefully removed by unscrewing the two screws. -
Page 12: Calibration Process
RMS reading voltmeters will enable the user to measure only the AC component of a signal. For HC1, a 1Vrms input signal on the PA1 will correspond to a 100μTrms field. The output of the magnetometer may also be monitored on an oscilloscope to ensure that there is no distortion of the waveform. -
Page 13: Alignment Trim
BARTINGTON DEFENCE & SPACE 5.1.3. Alignment trim In order to compensate for any small alignment inaccuracy in the test magnetometer, two measurements are made, in each axis, with the magnetometer being rotated about the measurement axis by 180 degrees and the average of the two voltages taken. When working with an AC field, the axis alignment trim control is adjusted until the reading is the same each time the test magnetometer is rotated about the axis being aligned. -
Page 14: Air Intake Filter Cleaning And Replacement
The air filter consists a 440x85mm (approx.) foam pad [32] fitted behind the centre front panel of the PA1 Power Amplifier. It should be cleaned or replaced when necessary. WARNING: Disconnect mains supply before removing filter panel. The earth bonding connector can then be disconnected if required. -
Page 15: Absolute Maximum Voltages And Ratings
7. Absolute Maximum Voltages and Ratings See the product brochure for the maximum voltages that may be applied to the PA1 Power Amplifier control input, current monitor output and coil drive output Refer to the product brochure for this product’s maximum environmental, electrical and mechanical ratings. -
Page 16: Waste Electrical And Electronic Equipment (Weee) Regulations
BARTINGTON DEFENCE & SPACE 10.1. Waste Electrical and Electronic Equipment (WEEE) Regulations This product complies fully with Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) and WEEE Regulations current at the time of printing. -
Page 17: Appendix A: Connecting The Components Of The Hcs1 Helmholtz Coil System
BARTINGTON DEFENCE & SPACE Appendix A: Connecting the Components of the HCS1 Helmholtz Coil System PXI CHASSIS Sensor Optional Connector 0 Connector 1 aux sensor if required Current Current Device Control Input Monitor Test Output Input Input Current Current Monitor... -
Page 18: Appendix B: Guidance For Connection To Mains Supply
NEUTRAL GREEN/YELLOW EARTH 4. It is essential that the control unit CU1 and the Power Amplifier PA1 are properly earthed at all times. 5. It is recommended that the mains to each unit is supplied via an appropriate mains fuse:-... - Page 19 Bartington Defence & Space Ltd 5, 8, 10, 11 & 12 Thorney Leys Business Park Witney, Oxford, OX28 4GE. England The copyright of this document is the property of Bartington Defence and Space Ltd. +44 1993 706565 +44 1993 774813 Bartington®...