OM2443 PSU1 Power Supply Unit Distributed By: GMW Associates 955 Industrial Road, San Carlos, CA, 94070 USA PHONE: +1 650-802-8292 FAX: +1 650-802-8298 EMAIL: sales@gmw.com WEB: www.gmw.
BARTINGTON INSTRUMENT Table of Contents How to use this Manual ....................................................................... 3 Symbols Glossary .......................................................................... 3 Important Safety Information .............................................................. 3 Applicability .......................................................................................... 4 Compatible Magnetometers ......................................................
BARTINGTON INSTRUMENT Initial Settings ............................................................................. 12 Magnetometer output type selection ................................ 12 Using the PSU1 ................................................................................... 13 Environmental Precautions ........................................................ 13 Switching On and Off .................................................................. 13 Troubleshooting ..........................
BARTINGTON INSTRUMENT 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.
BARTINGTON INSTRUMENT 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.
BARTINGTON INSTRUMENT 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.
BARTINGTON INSTRUMENT PSU1 Inputs, Outputs and Controls Back Panel Connections and Controls 1 2 3 5 1. 2. 3. 4. 5. 4 X Signal Conditioned Output Y Signal Conditioned Output 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.
BARTINGTON INSTRUMENT Front Panel Controls 6 6. 7 8 9 11 10 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) 8. 9. 10. 11. AC (in) Charge LED ON / OFF LED On/Off Switch Socket for external charging adapter Page 7 of 16 OM2443 ISSUE 1.
BARTINGTON INSTRUMENT 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: C B A 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 INSTRUMENT 3. Fully loosen screw B and the lid of the enclosure will lift due to the internal springs. 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. Page 9 of 16 OM2443 ISSUE 1.
BARTINGTON INSTRUMENT 6. When all 5 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 Page 10 of 16 OM2443 ISSUE 1.
BARTINGTON INSTRUMENT Initial charging of the battery cells To charge the PSU1 battery, connect the mains charger and switch on the mains supply (if appropriate). The charging LED (item 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 INSTRUMENT 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, item 10, is OFF (position “0”). 2. Connect the magnetometer to the PSU1 magnetometer socket. Ensure the connector pins are correctly aligned with those in the socket.
BARTINGTON INSTRUMENT Using the PSU1 Environmental Precautions Refer to the Mag-03 datasheet for maximum environmental, electrical and mechanical ratings for the PSU1. Caution: Exceeding the maximum environmental ratings may cause irreparable damage to the equipment. Switching On and Off Caution: Connect the magnetometer before switching on the PSU1, as connecting a “live” cable to the magnetometer may cause damage. Similarly, switch off the PSU1 before disconnecting the magnetometer.
BARTINGTON INSTRUMENT Troubleshooting If the PSU1 exhibits unexpected behaviour, please check possible causes in the following table: Fault Possible Cause Solution No power output from the PSU1 Battery flat Recharge Battery expired Replace batteries and charge Battery not fitted Fit batteries and charge None of the above Return to Bartington Instruments for repair Failed 12V charger Replace charger Battery not fitted Fit batteries and charge None of the above Return to Bartington Instrumen
BARTINGTON INSTRUMENT Troubleshooting (contd.) Fault Possible Cause Solution With a sensor connected all 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 INSTRUMENT Care and Maintenance The PSU1 requires no routine maintenance. There are no user serviceable parts. 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. Caution: No attempt should be made by a user to repair the unit.
