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Bacharach HGM300 Power Supply Replacement

Halogen gas monitor
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HGM300
Halogen Gas Monitor
Power Supply Replacement
Instruction 3015-5686
Rev. 0 – June 2012
Product Leadership • Training • Service • Reliability

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Summary of Contents for Bacharach HGM300

  • Page 1 HGM300 Halogen Gas Monitor Power Supply Replacement Instruction 3015-5686 Rev. 0 – June 2012 Product Leadership • Training • Service • Reliability...

  • Page 2: Safety Precautions

    HGM300 Power Supply Replacement SECTION 1: SCOPE This document explains how to replace the 120 VAC power supply circuit board of an HGM300 with a new power supply circuit board (P/N 3015-5675). SECTION 2: PREREQUISITES Before replacing the power supply circuit board, it is important to: •...

  • Page 3: In Case Of Malfunction

    32 mA, 250V Fast Acting 0604-2534 2.5 A, 250V Fast Acting 0604-2612 100-240 VAC 5mm x 20mm (3015-5675) 5 A, 250V Fast Acting 0604-2613 Figure 1. Fuse Locations on Old and New HGM300 Power Supply Boards P/N 3015-5686 Rev 0...

  • Page 4: Hardware Overview

    HGM300 Power Supply Replacement 2.3. HARDWARE OVERVIEW Refer to the following illustrations to locate the Power Supply printed circuit board. Figure 2. HGM300 Interior Components (Showing Old Power Supply PCB) P/N 3015-5686 Rev 0...
  • Page 5 HGM300 Power Supply Replacement Figure 3. Comparison of Old Style and New Style Power Supply Boards Agency approval for the new power supply has changed from UL to MET NOTE: Laboratories. P/N 3015-5686 Rev 0...

  • Page 6: Required Tools

    Open the HGM300 enclosure and locate the Power Supply board to be replaced. See Figure 2. Remove all connectors from the Power Supply board, noting their orientation. This includes the two input power connectors, the power supply connector to the pump, and the two power supply connectors to the main board.
  • Page 7 Restore power to the HGM300. Confirm normal operation to ensure that the power supply has been replaced correctly. Drilling holes in the HGM300 enclosure will void the warranty. Please WARNING: use knockouts provided for electrical connections. Drilling into the box will void the warranty.
  • Page 8 HGM300 Power Supply Replacement Headquarters: 621 Hunt Valley Circle, New Kensington, PA 15068 Website: www.bacharach-inc.com • E-mail: help@bacharach-inc.com Printed in U.S.A. ® Registered Trademark of Bacharach Inc. P/N 3015-5686 Rev 0...

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