Bartington PSU1 Manuel utilisateur
OM2443
PSU1 Power Supply Unit
BARTINGTON INSTRUMENT
Page 1 of 16 OM2443 ISSUE 1.0
Table of Contents
How to use this Manual ....................................................................... 3
Symbols Glossary.......................................................................... 3
Important Safety Information .............................................................. 3
Applicability.......................................................................................... 4
Compatible Magnetometers ................................................................ 4
Introduction to the PSU1...................................................................... 5
Summary....................................................................................... 5
Functional Description.................................................................. 5
Power.................................................................................... 5
Signal Buffering..................................................................... 5
Filtering ................................................................................. 5
PSU1 Inputs, Outputs and Controls...................................................... 6
Back Panel Connections and Controls .......................................... 6
Front Panel Controls..................................................................... 7
Installing the PSU1 ............................................................................... 8
Installing and Replacing the Internal Batteries............................. 8
Initial charging of the battery cells............................................. 11
Location of the Equipment ......................................................... 11
Potentially hazardous locations.......................................... 11
Orientation.......................................................................... 11
Temperature ....................................................................... 11
Proximity to other equipment ............................................ 11
Connecting the Equipment......................................................... 12
BARTINGTON INSTRUMENT
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Initial Settings ............................................................................. 12
Magnetometer output type selection ................................ 12
Using the PSU1 ................................................................................... 13
Environmental Precautions ........................................................ 13
Switching On and Off.................................................................. 13
Troubleshooting ................................................................................. 14
Troubleshooting (contd.).................................................................... 15
Care and Maintenance ....................................................................... 16
Fuses ........................................................................................... 16
Calibration .................................................................................. 16
Cleaning ...................................................................................... 16
End of Life Disposal ............................................................................ 16
BARTINGTON INSTRUMENT
Page 3 of 16 OM2443 ISSUE 1.0
How to use this Manual
This document describes the installation, operation and maintenance of the PSU1 Power Supply Unit.
Take the time to get well acquainted with your PSU1 by reading this manual. Knowing and understanding
the equipment will ensure you experience the most reliable operation.
When service or maintenance is required, please contact Bartington Instruments or your local agent
company.
Technical specifications for this product can be found in the appropriate datasheets. Details can be found
on the Bartington Instruments website.
Visit the Bartington Instruments website regularly for more information about any changes to our product
range, for software downloads, datasheets and for support details. You can access all the information you
need about your equipment, including service information at http://www.bartington.com/.
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.
This symbol identifies items that must be disposed of safely to prevent unnecessary damage to the
environment.
Note: A note provides useful supporting information and sometimes suggests how to make better use of
your purchase.
Important Safety Information
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.
BARTINGTON INSTRUMENT
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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 visit the Bartington Instruments website to obtain a copy. If you
require assistance locating the correct manual for your equipment, please contact the Bartington
Instruments helpdesk.
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 magnetometers. For the current list refer to
the datasheet.
BARTINGTON INSTRUMENT
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Introduction to the PSU1
Summary
The PSU1 provides a battery backed power supply of ±12 V for the Mag-03 series of three axis fluxgate
magnetic sensors. It also contains filters for the analog outputs of the sensor.
Functional Description
Power
The PSU1 will supply ±12V d.c. 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 the section on Installing and Replacing the Internal Batteries.
Signal Buffering
Buffered, single-ended output signals on BNC connectors from differential or single-ended output
magnetometers.
After filtering, each analog 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.
Filtering
Filtering is provided by a low-pass filter and selectable high-pass filter for d.c. or a.c. 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.
BARTINGTON INSTRUMENT
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PSU1 Inputs, Outputs and Controls
Back Panel Connections and Controls
1. X Signal Conditioned Output
2. Y Signal Conditioned Output
3. Z Signal Conditioned Output
The three BNC connectors carry the conditioned analogue 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
2
3
4
5
1
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Front Panel Controls
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 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
6
7
8
9
10
BARTINGTON INSTRUMENT
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Installing the PSU1
Installing and Replacing the Internal Batteries
The battery cells for the PSU1 are not installed before shipping. To install the batteries cells for first use (or
to replace defective 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.
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.
A
B
C
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