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Bacharach Microprocessor Module Replacement Instruction Manual

For single-zone leak monitors
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See also: Instruction Manual

1. Scope

This instruction manual describes how to replace or upgrade the microprocessor module in your "new style" Single-Zone
leak monitoring equipment (with serial numbers having the format "NU-xxxx"). It is assumed that you are familiar with the
operation of the appropriate monitor. If necessary, refer to the instructions for detailed operation and maintenance
information for each Single-Zone model.
The replacement process covers the following topics:
•

Items Required

•

Retrieving Current Configuration Data

•
•
•
•
2. Items Required
•
Replacement Microprocessor Module Kit (P/N: 3015-5549)
•
Medium Phillips head screwdriver
•
Medium standard slotted screwdriver
•
Wrench for lock nut
IMPORTANT: Failure to comply with these instructions may void the warranty.
3. Retrieving Current Configuration Data
Your Single-Zone monitor has been configured for your specific installation. Prior to beginning this procedure it is highly
recommended to collect setup and configuration data from your monitor so it can be verified and (if necessary) reloaded
after the new microprocessor module is installed. Use the table in Section 7 to record current parameter settings.
NOTE:
Note that a system hardware failure may make these values inaccessible or may reset them to default values
in a "fail safe" mode. If the values are not accessible or do not match your installation, you should skip this
step. If you need assistance, contact Bacharach Technical Support at (800) 736-4666 or (724) 334-5000.
4. Preparation
Prepare to remove the old microprocessor module by following the steps below.
a. Disconnect power to the leak monitor and confirm that no power is present.
3015-5550 Rev 2
Microprocessor Module Replacement
for Single-Zone Leak Monitors
Instruction Manual 3015-5550
621 Hunt Valley Circle
New Kensington, PA 15068
Tel:
724-334-5000
Fax:
724-334-5001
3015-5550
Revision 2
May 2013
1

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Summary of Contents for Bacharach Microprocessor Module Replacement

  • Page 1 Note that a system hardware failure may make these values inaccessible or may reset them to default values in a “fail safe” mode. If the values are not accessible or do not match your installation, you should skip this step. If you need assistance, contact Bacharach Technical Support at (800) 736-4666 or (724) 334-5000. 4. Preparation Prepare to remove the old microprocessor module by following the steps below.
  • Page 2 Microprocessor Module Replacement for Single-Zone Leak Monitors WARNING: Failure to remove power can cause damage to the monitor and can result in personal injury or death. b. Remove the two screws on the left edge of the front panel. See Figure 1 for locations.
  • Page 3 Microprocessor Module Replacement for Single-Zone Leak Monitors Note the orientation of the module, specifically the gold tab and hole oriented on the bottom left of the board. Refer to Figure 3. Note Position of Gold Tab and Hole (Bottom Left) Figure 3.
  • Page 4 Microprocessor Module Replacement for Single-Zone Leak Monitors Figure 4. Option A Installation g. Re-attach the main board to the enclosure by carefully placing the main board onto the enclosure standoffs and securing it with the screws removed earlier. h. Re-attach only the main board connectors that you removed in step (a).
  • Page 5 Microprocessor Module Replacement for Single-Zone Leak Monitors IMPORTANT: Be sure not to skip or offset the pins to the socket. Ensuring that the pins are properly aligned and the snap-in spacer is in place and properly aligned, press the microprocessor module firmly into the socket while simultaneously securing it to the snap-in spacer.
  • Page 6 Microprocessor Module Replacement for Single-Zone Leak Monitors  Setting Value Description Used to select of any one of the gas types listed for monitoring. Use the GASTYPE keypad to select the desired gas type, and then press ENTER to save the selection and return to the previous screen.
  • Page 7 Microprocessor Module Replacement for Single-Zone Leak Monitors  Setting Value Description Sets a value of between 0.0 and 99.9 ppm that prevents the display of measurements below that value. Factory default is 0 ppm. For example, if the squelch setting is set to 50 ppm, then the monitor will not display SQUELCH measurements that are below that value.
  • Page 8 Microprocessor Module Replacement for Single-Zone Leak Monitors Headquarters: 621 Hunt Valley Circle, New Kensington, PA 15068-7074 Toll Free: 1-800-736-4666 • Tel: +1-724-334-5000 • Fax: +1-724-334-5001 Website: www.MyBacharach.com • E-mail: help@MyBacharach.com Printed in U.S.A. ® Registered Trademark of Bacharach Inc. 3015-5550 Rev 2...

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