Bacharach HFO1234ZE User manual

Infrared Gas Detector
Installation and Operation Manual
Instruction 6490-9000
September 2016
Revision 4
Product Leadership x
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Training
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MGS-250 Manual
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WARRANTY POLICY
BACHARACH, INC. WARRANTS THIS GAS DETECTOR TO BE FREE FROM DEFECTS
IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF ONE YEAR FROM THE DATE
OF PURCHASE BY THE ORIGINAL OWNER. IF THE PRODUCT SHOULD BECOME
DEFECTIVE WITHIN THIS WARRANTY PERIOD, WE WILL REPAIR OR REPLACE IT AT
OUR DISCRETION.
THE WARRANTY STATUS MAY BE AFFECTED IF THE GAS DETECTOR HAS NOT
BEEN USED AND MAINTAINED PER THE INSTRUCTIONS IN THIS MANUAL OR HAS
BEEN ABUSED, DAMAGED, OR MODIFIED IN ANY WAY. THIS GAS DETECTOR IS
ONLY TO BE USED FOR PURPOSES STATED HEREIN. THE MANUFACTURER IS NOT
LIABLE FOR AUXILIARY INTERFACED EQUIPMENT OR CONSEQUENTIAL DAMAGE.
DUE TO ONGOING RESEARCH, DEVELOPMENT, AND PRODUCT TESTING, THE
MANUFACTURER RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT
NOTICE. THE INFORMATION CONTAINED HEREIN IS BASED ON DATA CONSIDERED
ACCURATE. HOWEVER, NO WARRANTY IS EXPRESSED OR IMPLIED REGARDING
THE ACCURACY OF THIS DATA.
ALL GOODS MUST BE SHIPPED TO THE MANUFACTURER BY PREPAID FREIGHT.
ALL RETURNED GOODS MUST BE PRE-AUTHORIZED BY OBTAINING A RETURN
MERCHANDISE AUTHORIZATION (RMA) NUMBER. CONTACT THE MANUFACTURER
FOR A NUMBER AND PROCEDURES REQUIRED FOR PRODUCT TRANSPORT.
SERVICE POLICY
BACHARACH, INC. MAINTAINS SERVICE FACILITIES AT LOCATIONS
WORLDWIDE. SOME DISTRIBUTORS / AGENTS MAY ALSO HAVE REPAIR
FACILITIES, HOWEVER, BACHARACH ASSUMES NO LIABILITY FOR SERVICE
PERFORMED BY ANYONE OTHER THAN BACHARACH PERSONNEL. REPAIRS
ARE WARRANTED FOR 90 DAYS AFTER DATE OF SHIPMENT (SENSORS,
PUMPS, FILTERS AND BATTERIES HAVE INDIVIDUAL WARRANTIES). SHOULD
YOUR GAS DETECTOR REQUIRE NON-WARRANTY REPAIR, YOU MAY
CONTACT THE DISTRIBUTOR FROM WHOM IT WAS PURCHASED OR YOU MAY
CONTACT BACHARACH DIRECTLY.
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MGS-250 Manual
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ALWAYS INCLUDE YOUR RMA #, ADDRESS, TELEPHONE NUMBER, CONTACT
NAME, SHIPPING/BILLING INFORMATION AND A DESCRIPTION OF THE
DEFECT AS YOU PERCEIVE IT. YOU WILL BE CONTACTED WITH A COST
ESTIMATE FOR EXPECTED REPAIRS PRIOR TO THE PERFORMANCE OF ANY
SERVICE WORK. FOR LIABILITY REASONS, BACHARACH HAS A POLICY OF
PERFORMING ALL NEEDED REPAIRS TO RESTORE THE GAS DETECTOR TO
FULL OPERATING CONDITION.
PACK THE EQUIPMENT WELL (IN ITS ORIGINAL PACKING IF POSSIBLE), AS
BACHARACH CANNOT BE HELD RESPONSIBLE FOR ANY DAMAGE INCURRED
DURING SHIPPING TO OUR FACILITY.
NOTICES
COPYRIGHTS: THIS MANUAL IS SUBJECT TO COPYRIGHT PROTECTION; ALL
RIGHTS ARE RESERVED UNDER INTERNATIONAL AND DOMESTIC
COPYRIGHT LAWS. THIS MANUAL MAY NOT BE COPIED OR TRANSLATED, IN
WHOLE OR IN PART, IN ANY MANNER OR FORMAT, WITHOUT THE WRITTEN
PERMISSION OF BACHARACH, INC.
ALL SOFTWARE WHICH BACHARACH UTILIZES AND/OR DISTRIBUTES, HOLDS
A PROPRIETARY INTEREST AND IS ALSO SUBJECT TO COPYRIGHT
PROTECTION AND ALL RIGHTS ARE RESERVED. NO PARTY MAY USE OR
COPY SUCH SOFTWARE IN ANY MANNER OR FORMAT, EXCEPT TO THE
EXTENT THAT BACHARACH GRANTS THEM A LICENSE TO DO SO. IF THIS
SOFTWARE IS BEING LOADED ONTO MORE THAN ONE COMPUTER, EXTRA
SOFTWARE LICENSES MUST BE PURCHASED.
TECHNICIAN USE ONLY
THIS UNIT MUST BE INSTALLED BY A QUALIFIED TECHNICIAN WHO WILL
INSTALL THIS UNIT IN ACCORDANCE WITH THESE INSTRUCTIONS AND THE
STANDARDS IN THEIR PARTICULAR INDUSTRY/COUNTRY. OPERATORS OF
THE UNIT SHOULD BE AWARE OF THE REGULATIONS AND STANDARDS IN
THEIR INDUSTRY/COUNTRY FOR THE OPERATION OF THIS UNIT. THESE
NOTES ARE ONLY INTENDED AS A GUIDE, AND THE MANUFACTURER BEARS
NO RESPONSIBILITY FOR THE INSTALLATION OR OPERATION OF THIS UNIT.
FAILURE TO INSTALL AND OPERATE THE UNIT IN ACCORDANCE WITH THESE
INSTRUCTIONS AND WITH INDUSTRY GUIDELINES MAY CAUSE SERIOUS
INJURY INCLUDING DEATH, AND THE MANUFACTURER WILL NOT BE HELD
RESPONSIBLE IN THIS REGARD.
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MGS-250 Manual
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MGS-250 Manual
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Table of Contents
SECTION 1. INTRODUCTION ........................................................................9
1.1. Overview ...................................................................................................... 9
1.2. Detection Options ........................................................................................ 9
1.2.1. Broadband vs. Gas Specific ................................................................ 9
1.2.2. Broadband Gas Detection ................................................................ 10
1.2.3. Detecting Specific Gases .................................................................. 11
1.3. Remote Controller Options ........................................................................ 15
1.4. Parts List..................................................................................................... 15
1.5. Specifications ............................................................................................. 16
SECTION 2. MOUNTING THE GAS DETECTOR.............................................17
2.1. Warnings and Prerequisites ....................................................................... 17
2.2. Mounting Locations ................................................................................... 17
2.2.1. General Placement Guidelines......................................................... 17
2.2.2. Machinery Rooms ............................................................................ 18
2.2.3. Refrigerated Spaces ......................................................................... 18
2.2.4. Chillers ............................................................................................. 19
2.3. Mounting Procedure .................................................................................. 19
SECTION 3. WIRING AND CONFIGURATION............................................... 22
3.1. Overview .................................................................................................... 22
3.2. Wiring Supply Power (24VAC or 24VDC).................................................... 23
3.3. Wiring Alarm Output (Analog Signal)......................................................... 25
3.4. Wiring the Digital Alarm Output Relay....................................................... 26
3.5. Modbus Network Configuration ................................................................ 27
3.6. Conclusion.................................................................................................. 29
SECTION 4. OPERATION AND STABILIZATION............................................30
4.1. Power Up and Warmup.............................................................................. 30
4.2. Stabilization................................................................................................ 30
4.3. Perform a Manual Zero .............................................................................. 30
4.4. Alarms ........................................................................................................ 31
4.5. Gas Detector Faults.................................................................................... 31
4.5.1. Overview .......................................................................................... 31
4.5.2. Non-Critical Faults............................................................................ 31
4.5.3. Critical Faults.................................................................................... 32
SECTION 5. CONFIGURE THE GAS DETECTOR............................................. 33
5.1. User Interface Overview ............................................................................ 33
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5.2. Setting Parameters..................................................................................... 34
5.2.1. Overview .......................................................................................... 34
5.2.2. Configuration Parameters................................................................ 34
5.3. Completing Setup....................................................................................... 42
SECTION 6. FUNCTIONAL TESTS AND ADJUSTMENTS ................................43
6.1. Introduction ............................................................................................... 43
6.2. Bump Testing vs. Adjusting Detector Response......................................... 44
6.3. Bump Testing ............................................................................................. 45
6.4. Adjustment Using Calibration Gas ............................................................. 46
SECTION 7. MODBUS COMMUNICATIONS ................................................49
7.1. Introduction ............................................................................................... 49
7.2. Communications Settings .......................................................................... 49
7.3. Analog Input Registers ............................................................................... 50
7.4. Analog Output Registers ............................................................................ 51
7.5. Input Status Flags....................................................................................... 52
7.6. Output Status Flags .................................................................................... 52
SECTION 8. TROUBLESHOOTING ...............................................................53
8.1. Fault Codes................................................................................................. 53
8.2. Diagnostics Attributes (P.-18) .................................................................... 55
8.3. Resetting MGS-250 to Default Values........................................................ 56
8.4. Other Symptoms ........................................................................................ 57
SECTION 9. REPLACEMENT PARTS AND ACCESSORIES...................................58
EU DECLARATION OF CONFORMITY............................................................... 59
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MGS-250 Manual
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List of Figures
SECTION 1. INTRODUCTION ........................................................................9
Figure 1. MGS-250 Components ......................................................................... 9
Figure 2. Broadband Gas Groups 1-3 ................................................................ 11
Figure 3. Gas Specific MGS-250 Gas Detectors ................................................. 12
Figure 4. Changing Gas Types and Accuracy ..................................................... 14
SECTION 2. MOUNTING THE GAS DETECTOR.............................................17
Figure 5. Initial Housing Separation .................................................................. 20
Figure 6. Front and Back Views of MGS-250 Base ............................................ 21
SECTION 3. WIRING AND CONFIGURATION............................................... 22
Figure 7. Terminal Blocks and Cable Glands ..................................................... 22
Figure 8. Supply Power Wiring Options ............................................................ 23
Figure 9. Maintaining Neutral Polarity.............................................................. 24
Figure 10. Analog Output Wiring ...................................................................... 25
Figure 11. Sample Relay Output Wiring............................................................ 26
Figure 12. Modbus Network Wiring.................................................................. 27
Figure 13. Setting Network Termination Resistors ........................................... 29
SECTION 5. CONFIGURE THE GAS DETECTOR............................................. 33
Figure 14. The User Interface of the MGS-250 ................................................. 33
Figure 15. Analog Output Scaling Options ........................................................ 39
SECTION 6. FUNCTIONAL TESTS AND ADJUSTMENTS ................................43
Figure 16. Using Calibration Gas ....................................................................... 46
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MGS-250 Manual
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List of Tables
SECTION 1. INTRODUCTION ........................................................................9
Table 1: Broadband Gas Groups and Performance (P/N 6401-0500)................ 10
Table 2: Gas Specific Detector Measurement Performance.............................. 13
Table 3: Parts List ............................................................................................... 15
Table 4: Technical Specifications ....................................................................... 16
SECTION 3. WIRING AND CONFIGURATION............................................... 22
Table 5: Power Options and Terminal Block Connections ................................. 23
Table 6: Alarm Output Terminal Block Connections.......................................... 25
Table 7: Relay Output Terminal Block Connections........................................... 26
Table 8: Modbus Network Communications Connections ................................ 27
SECTION 4. OPERATION AND STABILIZATION............................................ 30
Table 9: MGS-250 Behavior during Alarm Conditions ....................................... 31
Table 10: MGS-250 Behavior during a Non-Critical Fault .................................. 32
Table 11: MGS-250 Behavior during a Critical Fault .......................................... 32
SECTION 5. CONFIGURE THE GAS DETECTOR............................................. 33
Table 12: Button Functions ................................................................................ 33
Table 13: Parameter Numbers, Names and Descriptions.................................. 34
SECTION 7. MODBUS COMMUNICATIONS ................................................49
Table 14: Analog Input Registers ....................................................................... 50
Table 15: Analog Output Registers .................................................................... 51
Table 16: Input Status Flags ............................................................................... 52
Table 17: Output Status Flags ............................................................................ 52
SECTION 8. TROUBLESHOOTING ...............................................................53
Table 18: Fault Codes......................................................................................... 54
Table 19: Diagnostic Attributes.......................................................................... 55
Table 20: Other Symptoms and Possible Causes ............................................... 57
SECTION 9. REPLACEMENT PARTS AND ACCESSORIES...................................58
Table 21: Replacement Parts and Accessories................................................... 58
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MGS-250 Manual
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Section 1. Introduction
1.1. Overview
The MGS-250 NDIR (non-dispersive infrared) is a state-of-the-art fixed
gas detector which can detect a wide range of refrigerant gases. The
MGS-250 can be used on a stand-alone basis or integrated into controls
or a Building Management System (BMS).
The MGS-250 can be used in locations that require continuous
monitoring and to add gas detection solutions to an existing system.
Figure 1. MGS-250 Components
1.2. Detection Options
1.2.1. Broadband vs. Gas Specific
The MGS-250 NDIR refrigerant gas detectors are available in two
versions: broadband and gas specific.
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MGS-250 Manual
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1.2.2. Broadband Gas Detection
The broadband gas detector (P/N 6401-0500) is used as a general
purpose gross leak detector and is factory tested and certified. It is
shipped from the factory with accuracy as shown in Table 1 (gas
dependent). If more accurate detection is needed, gas specific versions
are available, which are factory certified and calibrated to the target
refrigerant.
The broadband gas detector combines refrigerants into three groups
shown in Figure 2. Measurement performance is based on an average
response profile for all of the gases within the group.
NOTE: Greater accuracy may be achieved through the use of
calibration gas and the adjustment procedure detailed in
Section 6.
Table 1: Broadband Gas Groups and Performance (P/N 6401-0500)
Group # Value for Param 111Refrigerant As Shipped Accuracy
1P.-11 = 1
R123 ±35%
R134a ±25%
R404a ±35%
R407a ±25%
R407c r20%
R407f ±20%
R410a ±20%
R427a ±15%
R507 ±35%
HFO1233ZD ±35%
R448A ±40%
R449A ±40%
2 P.-11 = 2
R422a ±25%
R422d ±20%
HFO1234YF ±25%
HFO1234Ze ±25%
R452A ±25%
R513A ±35%
3 P.-11 = 3 R22 ±25%
4 P.-11 = 4 R32 ±35%
1 See Section 5 for information on Parameter 11 and other configuration instructions.
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