Bartington PSU1 Manuel utilisateur
Operation Manual for
PSU1 Power Supply Unit
Innovation in Magnetic Field Measuring Instruments
www.bartington.com
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Table of Contents
1. Legal Notices 4
1.1. Copyright 4
1.2. Trademarks 4
2. How to Use this Manual 4
2.1. Symbols Glossary 4
2.2. Technical Specifications 4
3. Safe Use 5
4. Applicability 5
5. Compatible Magnetometers 5
6. Introduction to the PSU1 5
6.1 Summary 5
6.2. Functional Description 6
6.2.1. Power 6
6.2.2. Signal Buffering 6
6.2.3. Filtering 6
7. PSU1 Inputs, Outputs and Controls 7
7.1. Back Panel Connections and Controls 7
7.2. Front Panel Controls 8
8. Installing the PSU1 9
8.1. Installing and Replacing the Internal Batteries 9
8.2. Initial Charging of the Battery Cells 13
8.3. Location of the Equipment 13
8.3.1. Potentially Hazardous Locations 13
8.3.2. Orientation 13
8.3.3. Temperature 13
8.3.4. Proximity to Other Equipment 13
8.4. Connecting the Equipment 14
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8.5. Initial Settings 14
8.5.1. Magnetometer Output Type Selection 14
9. Using the PSU1 14
9.1. Environmental Precautions 14
9.2. Switching On and Off 14
10. Troubleshooting 15
11. Care and Maintenance 16
11.1. Fuses 17
11.2. Calibration 17
11.3. Cleaning 17
12. End of Life Disposal 17
12.1. Waste Electrical and Electronic Equipment (WEEE) Regulations 17
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1. Legal Notices
1.1. Copyright
The copyright of this document is the property of Bartington Instruments Ltd.
1.2. Trademarks
Bartington® is a trademark in Australia, Canada, China, the European Community, India, Japan,
the countries of the Madrid Agreement & Protocol, Norway and the United States of America.
2. How to Use this Manual
This manual provides the information necessary to help customers install and operate the PSU1
Power Supply Unit from Bartington Instruments.
Photographs of key components are included, labelled with numbers. A number in the text in
square brackets [ ] refers to that label on the nearest photograph above it.
Bartington Instruments cannot advise on the integration of this equipment with any third party
products.
2.1. Symbols Glossary
The following symbols used within this manual call your attention to specific types of
information:
WARNING: Indicates a situation in which serious bodily injury or death could result if the
warning is ignored.
Caution: Indicates a situation in which bodily injury or damage to your instrument, or both,
could result if the caution is ignored.
Identifies items that must be disposed of safely to prevent unnecessary damage to the
environment.
Note: Provides useful supporting information on how to make better use of your purchase.
2.2. Technical Specifications
Technical Specifications for this product can be found in the appropriate datasheets available on
the Bartington Instruments website at www.bartington.com/psu1-power-supply-unit.html.
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3. Safe Use
WARNING: The PSU1 is fitted with AA size NiMH (Nickel Metal Hydride) rechargeable
batteries. Only AA size rechargeable batteries, which are specified as compatible in the
relevant datasheet, can be used in this product.
WARNING: The fitting of non-approved battery cells may be dangerous and could affect the
safety of users, damage the equipment and also invalidate the terms and conditions of the
Warranty.
WARNING: The PSU1 can also be powered by mains electricity and contains uninsulated
parts. Ensure that the unit is properly earthed at all times. Only properly trained personnel
should open the unit.
WARNING: These products are not qualified for use in explosive atmospheres or life
support systems. Consult Bartington Instruments for advice.
4. Applicability
Caution: This manual applies only to the PSU1 Power Supply Unit. For the earlier
Mag-03PSU, please use the manual supplied with that unit or contact the Bartington
Instruments helpdesk.
5. Compatible Magnetometers
Caution: Use of incompatible magnetometers may cause damage to the PSU1 and/or the
magnetometer. The PSU1 is designed to operate with various Bartington Instruments
magnetometers. For the current list, refer to the datasheet.
6. Introduction to the PSU1
6.1 Summary
The PSU1 provides a battery backed power supply of ±12V for the Mag-03 series of three-axis
fluxgate magnetic field sensors. It also contains filters for the analogue outputs of the sensor.
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6.2. Functional Description
6.2.1. Power
The PSU1 will supply ±12V DC for powering a range of magnetometers. Please refer to the
datasheet for the latest list of compatible products. The power is supplied from the internal,
rechargeable batteries or from the plug-in power adapter, which is also used to charge the PSU1
batteries.
Note: The PSU1 will operate without any battery cells being installed. To install, or replace
defective cells, refer to section 8.1: Installing and Replacing the Internal Batteries.
6.2.2. Signal Buffering
Single-ended output signals on BNC connectors are buffered from differential or single-ended
output magnetometers.
After filtering, each analogue signal is fed to the appropriate BNC connector via a low impedance
buffer. These buffers allow long cables and low input impedance data acquisition systems to be
used. Refer to the appropriate datasheet for maximum loads.
The output common return is also buffered to eliminate crosstalk due to signal currents sharing
the Va common return. A high impedance AC path is also provided between the Va common and
cable screen to improve AC noise performance.
6.2.3. Filtering
Filtering is provided by a low-pass filter and selectable high-pass filter for DC or AC coupling.
A low pass and a high pass filter are included in each of the channels for the signals from the X,
Y and Z axes of the sensor. Refer to the appropriate datasheet for the frequency response of the
filters.
The low pass filters remove the high frequency noise components of the signal from the sensor.
The high pass filters are intended to isolate the DC or static field component so that the
alternating components above this frequency can be measured or analysed.
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7. PSU1 Inputs, Outputs and Controls
7.1. Back Panel Connections and Controls
Key
1. X Signal Conditioned Output.
2. Y Signal Conditioned Output.
3. Z Signal Conditioned Output. The three BNC connectors carry the conditioned analogueue output voltages. The
conditioned outputs are the magnetometer X, Y and Z signals after they have been modified by the low/high pass filters
and, if a balanced output magnetometer is connected, converted to single-sided signals..
4. Space for unique serial number.
5. Magnetometer Socket. This multi-pin socket is for the connection of the magnetometer cable.
Note: Ensure correct orientation of the connector (indicated by the cut-out on the
connector body aligning with the notch in the socket).
1 2
54
3
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7.2. Front Panel Controls
Key
6. Magnetometer Output Type Selector Switch
Balanced (out)
Unbalanced (in)
Caution: This switch must be set to match your magnetometer output type to ensure
correct results (see Section 8.5.1: Magnetometer output type selection)
7. DC/AC Coupling (High Pass Filter (HPF) Control)
DC (out)
AC (in)
8. Charge LED
9. ON / OFF LED
10. On/Off Switch
11. Socket for external charging adapter
11 10
6 7 8 9
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8. Installing the PSU1
8.1. Installing and Replacing the Internal Batteries
To install the battery cells, use the following procedure.
Key
A. Enclosure lid retaining screw.
B. Enclosure lid retaining screw.
C. Earth lead fixing (do not remove)
1. Place the PSU1 on a suitable surface with the underside facing up and the two enclosure lid
retaining screws nearest to you.
A B
C
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2. Using a flat-bladed screwdriver of the appropriate size, fully loosen screw [A] to allow the
edge of the lid to clear the enclosure end cap.
3. Fully loosen screw B and the lid of the enclosure will lift due to the internal springs.
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