Innovation in Magnetic Field Measuring Instruments Operation Manual for PSU1 Power Supply Unit www.bartington.
BARTINGTON INSTRUMENTS 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.
BARTINGTON INSTRUMENTS 8.5. Initial Settings 14 8.5.1. Magnetometer Output Type Selection 9. Using the PSU1 14 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.
BARTINGTON INSTRUMENTS 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.
BARTINGTON INSTRUMENTS 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.
BARTINGTON INSTRUMENTS 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.
BARTINGTON INSTRUMENTS 7. PSU1 Inputs, Outputs and Controls 7.1. Back Panel Connections and Controls 1 2 3 5 4 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.
BARTINGTON INSTRUMENTS 7.2. Front Panel Controls 6 7 8 9 11 10 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.
BARTINGTON INSTRUMENTS 8. Installing the PSU1 8.1. Installing and Replacing the Internal Batteries To install the battery cells, use the following procedure. A C B 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.
BARTINGTON INSTRUMENTS 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.
BARTINGTON INSTRUMENTS 4. Lift the lid and place aside to gain access to the battery cell compartment. 5. Insert each cell into the compartment in turn. Always fit the negative end of the cell first. Press the cell back against spring pressure until the positive terminal can be located in the holder.
BARTINGTON INSTRUMENTS 6. When all five cells are in place, locate the back edge of the lid in the enclosure. 7. Tighten screws [A] and [B] in any order. 8. To remove discharged or defective cells follow the above procedure.
BARTINGTON INSTRUMENTS 8.2. Initial Charging of the Battery Cells To charge the PSU1 battery, connect the mains charger and switch on the mains supply. The charging LED [8] will begin to flash, indicating that “fast charging” is taking place. Once the fast charge cycle has completed, the LED will stop flashing and be lit (ON) continuously to indicate “trickle charging” is ongoing.
BARTINGTON INSTRUMENTS Note: The PSU1 is inherently magnetic and should, therefore, be sited as far from any magnetometers as possible. 8.4. Connecting the Equipment Caution: Connection between the magnetometer and the power supply should not be made or broken with the power supply switched on as this could cause damage to the magnetometer. Connect the equipment in the following sequence: 1. Ensure the ON/OFF switch [10] is OFF (position “0”). 2. Connect the magnetometer to the PSU1 magnetometer socket.
BARTINGTON INSTRUMENTS Note: For best results, after switching on the power, leave the PSU1 for 20 minutes for the internal temperature to stabilise, before performing any measurements. 10.
BARTINGTON INSTRUMENTS With a sensor connected, all output signals are faulty With a sensor connected, one or two output signals are faulty Coupled incorrectly Check position of AC/DC coupling switch Balance mode set incorrectly Check position of balanced/ unbalanced mode switch Defective sensor cable Check sensor cable using relevant datasheet.
BARTINGTON INSTRUMENTS 11.1. Fuses As a safety feature the PSU1 is fitted with a thermal fuse. If the PSU1 overheats, which could occur as a result of the fitment of incorrect battery cells, the charging circuit will be permanently isolated. The PSU1 must be returned to Bartington Instruments for checks and repair. 11.2. Calibration No calibration is required. 11.3. Cleaning Caution: Disconnect the electrical supply before performing any cleaning operation. Periodic cleaning is not normally required.
OM2443/2 Bartington Instruments Limited T: +44 (0)1993 706565 5, 10 & 11 Thorney Leys Business Park F: +44 (0)1993 774813 Witney, Oxford, OX28 4GE, England E: sales@bartington.com The specifications of the products described in this brochure are subject to change without prior notice. Bartington® is a registered trademark of Bartington Instruments Ltd. www.bartington.
