Replacement Part Install Instructions

ManualsBrandsBacharach ManualsGas Analyzers & MonitorsHGM-MZ Halogen Gas Leak Monitor, Multi-Zone (8)

Table Of Contents

621 Hunt Valley Circle

New Kensington, PA 15068 3015-5547

Tel: 724-334-5000 Revision 2

Fax: 724-334-5001 1/18/11

Microprocessor Module Replacement Kit

for Multi-Zone Leak Monitors

Instruction Manual

1. Scope

The Bacharach Multi-Zone family of fixed point monitors is designed for easy maintenance and enhancement. One

element of that design is the ability to replace system programming (firmware) with a simple plug-in microprocessor

module, minimizing downtime.

This instruction manual describes how to replace or upgrade the microprocessor module in your Multi-Zone leak

monitoring equipment. It is assumed that the user is familiar with the operation of the appropriate monitor. If necessary,

refer to the instructions for detailed operation and maintenance information for each Multi-Zone model.

2. Items Required

 Replacement Microprocessor Module Kit (P/N: 3015-5546)

 Medium Phillips head screwdriver

CAUTION

Failure to comply with these instructions may void the warranty.

3. Retrieving Setup and Configuration Data

Your Multi-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 reloaded after the new

microprocessor module is installed. Use the table that follows to record the necessary parameters.

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.

NOTE:

The node address of your Multi-Zone device can be found on page 2 of the System Setup Screen.

3015-5547 Rev 2 1

Summary of content (10 pages)

PAGE 1
621 Hunt Valley Circle New Kensington, PA 15068 Tel: 724-334-5000 Fax: 724-334-5001 3015-5547 Revision 2 1/18/11 Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors Instruction Manual 1. Scope The Bacharach Multi-Zone family of fixed point monitors is designed for easy maintenance and enhancement. One element of that design is the ability to replace system programming (firmware) with a simple plug-in microprocessor module, minimizing downtime.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors NODE ADDRESS = _________ ZONE LOCATION (From screen) (Based on your physical installation) NUMBER OF ZONES = __________ GAS LENGTH OF TUBING TEMP AT ZONE STORED ALARM LEVELS LEAK LEVEL SPILL LEVEL EVAC LEVEL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 4. Removal 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.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors e. Locate the red microprocessor module, socketed on the bottom right side of the main circuit board. Refer to Figure 1. f. Note the orientation of the module, specifically the gold tab and hole oriented on the bottom left of the board. Refer to Figure 2. Microprocessor Module 12-position Screw Terminal Block Figure 1.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors 5. Microprocessor Removal Remove the installed microprocessor module by following the steps below. a. Grasp the left and right edges of the microprocessor module and gently pull straight out while rocking left to right, until it comes free of the socket. b. Dispose of the removed microprocessor module in accordance with local regulations for electronic equipment. 6.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors Figure 4. Main Setup Screen Showing Location of Service Mode Entry Option d. With the ‘Service Mode Entry’ option highlighted, press ENTER twice to enter Service Mode. e. Scroll to the “SYSTEM” option and press ENTER. f. Scroll to the “MORE” option (see below) and press ENTER. Note that “MORE” will flash when it is selected. Figure 5. HGM Setup Screen Showing “MORE” Option g.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors h. Use the UP and DOWN arrow keys to select the model type of your monitor from the scrolling list (for example, REF for refrigerant). With the proper model selected, press ENTER to save that change. i. Press ESC to get to the System Menu. Scroll to IN SERVICE QUIT and press ENTER twice to leave Service Mode. Press ESC once and allow the instrument to complete a pressure check and purge cycle (approximately 2 minutes). j.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors o. Scroll to and select the “IR DIGIPOT” option (see below) and press ENTER. Figure 10. Setup Screen When in Service Mode p. Use the UP and DOWN arrows to adjust the MW reading to 450 (or as close as possible). When at the proper value, press ESC once. DIGIPOT= 180 IR VOLT= 4.21 V= 4.7 R= 49 MA= 96 MW= 450 Figure 11. Sample DIGIPOT Readings q. Scroll to ‘DET DIGIPOT’ and press ENTER. r.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors 8. Reload Setup Parameters Reload the previously saved setup parameters and configuration data by following the steps below. a. With the monitor in either Warm Up Mode (flashing green LED) or Sampling Mode (solid green LED), access the Setup Menu by pressing the ENTER key twice. Figure 12. Sampling Mode Screen b. Scroll to the “SYSTEM” option and press ENTER. Figure 13. Main Setup Screen c.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors d. Use the UP and DOWN arrow keys to select the NUM ZONES INSTALLED setting and press ENTER. e. Use the UP and DOWN arrow keys to choose the number of physical zones (solenoids) installed in your Multi-Zone (i.e., 4, 8, 12, or 16 zones). Press ENTER to save the changes, or ESC to abort the changes. NOTE f. The NUM ZONES INSTALLED setting defines the maximum number of zones that your Multi-Zone is capable of measuring (i.e.
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Microprocessor Module Replacement Kit for Multi-Zone Leak Monitors i. j. Use the LEFT and RIGHT arrow keys to scroll through all Zone Setup Screens. Select and change the zone settings as required or as recorded earlier in the table on page 2. The zone settings are:  LOCATION  LOG INTERVAL  REFRIGERANT  LEAK LEVEL  DISTANCE (length of tubing)  SPILL LEVEL  TEMP AT ZONE  EVAC LEVEL. k. When all changes are complete, press ESC to return to the Main Setup Screen. l.