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Bartington MAG-03PSU Operation & Maintenance Manual

Power supply unit
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GMW
Distributed by:
GMW Associates
955 Industrial Road, San Carlos, CA 94070 USA
Tel: (650) 802-8292 Fax: (650) 802-8298
Email: sales@gmw.com
website: http://www.gmw.com
Manufactured by:
Bartington Instruments Ltd.
10 Thorney Leys Business Park
Witney, Oxford OX8 7GE
England
Tel: 011 44 1993 706565 Fax: 011 44 1993 774813
Email: sales@bartington.com
website: http://www.bartington.com
_________________________________________________________________________________
GMW
955 Industrial Road, San Carlos, CA 94070 Tel: (650) 802-8292 Fax: (650) 802-8298
Email: sales@gmw.com Web site: http://www.gmw.com
BARTINGTON
MAG-03PSU

POWER SUPPLY UNIT

OPERATION/MAINTENANCE MANUAL
January 2001

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Summary of Contents for Bartington MAG-03PSU

  • Page 1: Power Supply Unit

    955 Industrial Road, San Carlos, CA 94070 USA Tel: (650) 802-8292 Fax: (650) 802-8298 Email: sales@gmw.com website: http://www.gmw.com Manufactured by: Bartington Instruments Ltd. 10 Thorney Leys Business Park Witney, Oxford OX8 7GE England Tel: 011 44 1993 706565 Fax: 011 44 1993 774813 Email: sales@bartington.com...

  • Page 2: Table Of Contents

    LIST OF CONTENTS INTRODUCTION POWER FILTERS BUFFERS CABLES ANALOG VOLTAGE MEASUREMENTS Mag-03PSU WITH Mag-03 SERIES SENSORS BATTERY CHARGING LOW BATTERY ALARM ANALOG OUTPUT TAKING MEASUREMENTS 11.1 CONNECTING UP 11.2 FILTER SECTION 11.3 ADDITIONAL FILTERS 11.4 OVERLOAD 11.5 AC MEASUREMENT PRECAUTIONS 11.6...
  • Page 3 FIGURE 4 PC36 ASSEMBLY AND FILTER SELECTION FIGURE 5 Mag-03PSU WIRING DETAILS PARTS LISTS: PL0065 - Mag-03PSU ASSEMBLY PL0063 - PC36 ASSEMBLY PL0855 - Mag-03PSU FRONT PANEL ASSEMBLY PL0858 - Mag-03PSU REAR PANEL ASSEMBLY OM0065 ISSUE 5 PAGE 3 of 21...

  • Page 4: Introduction

    The ±12 V supply for the Mag-03 series of magnetic field sensors is provided from the filtered output of an isolated dc to dc converter rated at 1 W. The Mag-03PSU is connected to the Mag- 03 sensor through a 6 conductor cable, the screen of which is used for the 0 V power supply return (common) line.

  • Page 5: Cables

    5 CABLES Cables can be supplied to connect any of the Mag-03 series of sensors to the Mag-03PSU. Details are given in the operation manual for the sensor. The cable carries the supply voltage to the magnetic field sensor; 0 V connection is via the screen. Analog signals are returned via three conductors and the analog return is via a common conductor.

  • Page 6: Battery Charging

    8 BATTERY CHARGING A 12 V dc (nominal unregulated) output mains adaptor for battery charging purposes is supplied as an accessory. Before use ensure that this is of the appropriate voltage for the local mains supply, either 110 V or 220 V/240 V ac, 60 Hz or 50 Hz. As an alternative the batteries may be charged from a vehicle dashboard 12 V connector.

  • Page 7: Additional Filters

    ±1.5kHz. The operating frequency of the Mag-03 series of magnetic sensors is 31.25kHz. 11.6 ELECTROMAGNETIC COMPATIBILITY The Mag-03PSU contains no high frequency electronics likely to cause emissions which could affect other apparatus. The constant voltage charger and lead-acid battery combined with tantalum capacitors provide good filtering to minimise any emissions.

  • Page 8: Detailed Circuit Description

    operation close to a source of high electromagnetic fields should be avoided to prevent pick-up which will be evident as noise in the output signal. 12 DETAILED CIRCUIT DESCRIPTION (SEE FIGURES 1 to 5) 12.1 POWER An unregulated voltage from the battery charger appears via the 2.1 mm charger connector between Pins 1 and 2 of PC36.

  • Page 9: Open Circuit Conditions Or No Supply Voltage

    13.2 OPEN CIRCUIT CONDITIONS OR NO SUPPLY VOLTAGE Ensure that power is supplied to the magnetic field sensor. Remove the cover of the Mag-03PSU power supply unit and establish that a voltage of ±12 to ±13 V is obtained on Pins 5 and 7 respectively relative to pin 6 on PC36 with the unit switched on.
  • Page 10 (ii) If it is believed that charging is not taking place connect a voltmeter across the battery. Whilst charging is taking place the battery voltage should increase to 6.7 V. (iii) If the battery voltage is not 6.7 V remove the power supply connector and check for around 12-18 V (unregulated) between the outer and inner terminals of the connector.

  • Page 11: Battery

    14 SPECIFICATIONS Mechanical Materials high strength ABS Dimensions 133mm x 84mm x 46mm Electrical Sensor analog input and power output 10 pole Hirose plug type RM15TRD-1OP Outputs 3 BNC connectors ±12 V at 1 W Sensor power supply : Battery PANASONIC type LCR6V1.3P 6 V 1.3 Ah Sealed lead/acid - provides up to 10 hours continuous use depending on condition and state of charge...
  • Page 12 DR1011(1) Mag-03 & Mag-03PSU SIMPLIFIED SCHEMATIC FIGURE 1 OM0065 ISSUE 5 PAGE 12 of 21...
  • Page 13 DR0065(7) Mag-03PSU ASSEMBLY FIGURE 2 OM0065 ISSUE 5 PAGE 13 of 21...
  • Page 14 DR1013(2) PC36 SCHEMATIC FIGURE 3 OM0065 ISSUE 5 PAGE 14 of 21...
  • Page 15 DR1014(1) PC36 ASSEMBLY & FILTER SELECTION FIGURE 4 OM0065 ISSUE 5 PAGE 15 of 21...
  • Page 16 DR1015(2) Mag-03PSU WIRING DETAILS FIGURE 5 OM0065 ISSUE 5 PAGE 16 of 21...
  • Page 17 PL0065/6 Mag-03PSU ASSEMBLY PC 36 ASSEMBLY PM 0063 FRONT PANEL ASSEMBLY PM 0855 REAR PANEL ASSEMBLY PM 0858 LABEL COTSWOLD DR 0067 SCREEN PRINTERS FILTER LABEL BARTINGTON DR 0856 BOND ON INSIDE OF ITEM 8 INSTRUMENTS ENCLOSURE LOWER HALF DR 0859...
  • Page 18 HEATSHRINK TUBING 2:1 SHRINK RATIO 6.4 X 20mm LONG BLACK No. 6 SELF TAPPING SCREW 6.5mm LONG STEEL, BRIGHT ZINC PLATED CLEAR PASSIVATED LOCTITE 7400 AS REQD STICK ON FEET POLYEURETHANE SELF ADHESIVE Ø12.7 X 3.6 BLACK FR4 NUT USED TO LOCATE GROUND IN LOWER 3THK X 9SQ.
  • Page 19 PL0063/5 PC36 ASSEMBLY PC 36 PM 0061 D1,2 DIODE IN4001 FARE IN4001 LM317T FARE LM317T LM2940CT-5-0 NMA0512S FARE 330-759 OP400GP FARE OP400GP VN4302EZB VOLTAGE DETECTOR IC54 SERIES SUB-MINIATURE PIEZO 264-62715G ELECTROSPEED AUDIBLE INDICATOR 80dB CAP: 10µF TANTALUM 22/16 C1,2,15,16, CAP: 0.1µF CERAMIC 50V FARE 146-232 17,18...
  • Page 20 X 100mm M3 SOLDER TAG 4.8 mm BLACK HEATSHRINK X 10mm LONG (2:1 SHRINK) 2.4mm BLACK HEATSHRINK X 10mm LONG (2:1 SHRINK) PL0855/2 Mag-03PSU FRONT PANEL ASSEMBLY FRONT PANEL MACHINED RPPE DR 0069 OM0065 ISSUE 5 PAGE 20 of 21...
  • Page 21 PTFE SLEEVING FARE 583-972 ANY (CLEAR) ALTERNATIVE ALLOWED REQD TO COVER LED WIRES & RESISTOR RESISTOR 5K6 FARE 336-129 MRS25 PL0858/1 Mag-03PSU REAR PANEL ASSEMBLY REAR PANEL MACHINED RPPE DR 0857 BNC CONNECTOR FARE 143-777 BNC TAG WASHER FARE 309-448...

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