Bacharach ADM800, AGM300 manual Multiple AGM’s, Connecting to a Building Management System

Page 20

Multiple AGM’s

TERMINATOR

“IN”

AMD800

MULTIPLE AGM300’S WITH ADM800

NOTE 1: The last AGM300 or ADM800 on either end of the network must have its terminator in the “IN” position, and all other units must have their terminators in the “OUT” position.

NOTE 2: The total length of the RS-485 cable cannot exceed 4500 feet. (Use instrument cable 20 gage multi-strand shielded and twisted pair – similar or equal to Belden cable #8762.)

RS-485 CONNECTIONS BETWEEN AGM300’s

RS-485

NOTE: The terminators in the ADM800 and AGM300 Unit 4 must be in the “IN” position. The terminators in AGM300 Units 1, 2 & 3 must be in the “OUT” position.

AGM300

 

 

AGM300

 

UNIT 1

 

 

UNIT 2

 

NODE 1

 

 

NODE 2

 

TERMINATOR

TERMINATOR

“OUT”

 

“OUT”

AGM300

UNIT 3

NODE 3

TERMINATOR “OUT”

AGM300

UNIT 4

NODE 4

TERMINATOR “IN”

Connecting to a Building Management System

The AGM300 may be connected to a Building Management System via the RS-485 connector. The node address switch on each AGM300 may be set from “1” to “15” in order to identify itself to the Building Management System. Note that Building Management Systems set to a “0” or “1” address both respond to messages from the ADM800 as address “1” therefore you should not have a unit set to “0” and another set to “1” on the same network.

If the AGM300 network is connected directly to a Building Management System it may not be connected to the ADM800. However, the ADM800 has two communication ports, an “upstream” port (labeled TO HOST) and a “downstream port (labeled TO MONITORS). A BMS node may be connected to the up stream ADM800 port while the downstream ADM800 port talks to the AGM300’s. In this case, the BMS is talking “through” the ADM800 to the AGM300’s, but not physically on the AGM300/ADM800 network.

NOTE: If the AGM300 is not at the end of the line in a series connection, then the terminator on the AGM must be set to “OUT.” Also, each end of the series must have the terminator set to “IN”.

MULTIPLE AGM300'S CONNECTED TO A BUILDING MANAGEMENT SYSTEM

AGM300

NODE 1

TERMINATOR

“IN”

TERMINATOR

“OUT”

BMS

AGM300

 

 

 

AGM300

 

NODE 2

 

 

 

NODE 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINATOR

TERMINATOR

“OUT”“OUT”

AGM300

NODE 4

TERMINATOR “IN”

12

Instruction 3015-4275

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Contents AGM300 / ADM800 Ammonia Gas Monitoring System Rev MayInstruction Table of Contents Please Read this Manual Carefully Before Use How to Use This ManualIntroduction Safety Precautions Hazard Symbols on Monitor Installation CategoryCleaning Altitude LimitFunctional Overview General DescriptionCommunication Options Suggested Location of Sampling PointsChiller Machine RoomStandard Accessories for a 4 Point System LEDInspection AGM300 Installation ConsiderationsLocating the Monitor Installation AGM300 Mounting InstructionsScrew Locations AGM300 Mounting SpecsAGM300 Connecting Air Lines OverviewAGM300 Side View Inlet / Purge PortsConnecting Purge Line Connecting Exhaust LineConnecting Sample Intake Lines Tubing ConsiderationsAGM300 Interior Schematic Do not Apply Power Switches / FusesON/OFF / OUTAGM300 Electrical Wiring VAC InstallationAGM300 AC Input Power and Ground Connections AGM300 Connecting Communication Devices RS-485 ConnectorAmmonia Display Module ADM800 Connection Integrating with Building Management SystemsOUT Changing Terminator SettingsPersonal Computer Refer to AGM300 PC Software Section RS-485 Connections Between AGM300’s Connecting to a Building Management SystemMultiple AGM’s Programming the AGM300 Using PC Software AGM300 PC SoftwareMultiple AGM300’s Connected to a Building Management System Unit Node Terminator Outout Building Management SystemSaving the AGM300 Program to a Disk or Drive To Open a Saved ProgramTo Send a Saved Program to an AGM300 Trend DataUSB Type Laptops Sealevel SYSTEMS, INCCurrent Loop Connector AGM300 Current Loop InterfacesOptional 4-20 mAdc Outputs ConnectionAGM300 Connecting External Alarms AGM300 Relay ConnectorLeak Spill Evacuate Fault Typical AGM300 Relay 1 and Relay 2 WiringADM800 Installation ADM800 Oblique PhotoADM800 Installation Considerations ADM800 Mounting Instructions ADM800 Mounting SpecsADM800 Interior Schematic Front Panel ChassisTo Monitors To HostADM800 Electrical Wiring ADM800 AC Input Power and Ground Connections Integration with Building Management System ADM800 Communication ConnectionsAGM300 Network Changing Terminator Switch Settings To MonitorADM800 Connecting External Alarms ADM800 Relay ConnectorADM800 Exterior Schematic ADM800 OperationADM800 Overview ADM800 Screen Displays System ScreenADM800 System Programming Setup ParametersPassword Protection Clock Setup Screen ADM800 Setup ProgrammingSetting the Clock Navigating to the 1st ADM Setup Screen ContrastNumber of AGM Units AGM Baud RateAudible Alarm PasswordEnabling Building Management System Connection Building Management System Stop BitsNavigating to the 2nd ADM Setup Screen Setting Relay ParametersADM Setup Screen #2 AGM Node AddressAGM300 Setup Programming Navigating to the 1st and then 2nd AGM Setup ScreenScreen #1 AGM Setup Screen #1 AGM Setup Screen #2Number of Zones Installed Alarm Ack ModeLocation Zone Hold TimeRe-Zero Mode Loop 2 FactorAuto Zone ChangeAGM Setup #3 Screen Navigating to the 3rd AGM Setup ScreenService Timeout ADM800 Zone Setup Programming Navigating to the 1st Zone Setup ScreenZone Setup Screen #1 DistanceAverage Temperature Navigating To the 2nd Zone Setup ScreenCurrent PPM Log IntervalEvacuation Level Re-Setting the Peak PPM ValueSpill Level General Operation Functional OverviewWorking with the Zone Screen Zone ScreenZone Screen Hold Mode Zone Screen Alarm ModeFault Conditions System Screen Alarm Mode Working with the System ScreenAGM Setup #1 Screen Alarm Log ScreenSystem Screen Fault Mode Alarm Summary Screen Working with AlarmsResponding To Alarms Alarm Detail Screen Alarm Detail ScreenAcknowledging Alarms Alarm Summary Screen Acknowledge ModeWorking with the Trend Screen Overview Log IntervalNavigating To the Trend Screen Trend ScreenFault Screen Working with System FaultsNavigating to the Fault Screen Reset to Factory Default Settings Critical FaultsFault Log Screen Clearing System FaultsViewing Fault Log Adjusting Calibration Factor Working with the Calibration ScreenNavigating to the Calibration Screen Calibration ScreenCalibration Procedure Working with the Diagnostic Screen Navigating to the Diagnostic ScreenDiagnostic Screen Overview Diagnostic ScreenInstruction Service Mode System Screen Service ModeInstruction Appendix AGM300 / ADM800 Maintenance Servicing Inline FilterServicing Air Lines Replacing FusesMA Interface Board Optional AccessoriesIntake Manifolds ADM800 Logic Diagram RS-485 Communication Protocol Modbus RTU ProtocolAGM300 Modbus RTU Operation Protocol DetailsModbus Mode RTU only Key Comm Protocol ParametersSummary of Registers Data Type AbbreviationsRegister Name Number Type Description TIMREV Unused TIMUnused Minutes RS-485BAUDService mode register to change this parameter Mode. do not Modify use zone hold register orMSB LSBGood. do not Modify Zone Data Register 0x12xxh R/W 78 bytesVariable Type Length Description Instruction Instruction Stpppm To Release the Zone Hold Use the Following Sequence of Steps Fault Log Register Register 0x1900, 0x1901h Bytes Instruction Last 100 log points 2 byes per point Point to current readingTime record for each of the 100 log points. The format Service Warranty and ServiceWarranty Field Repair Return ProcedureProducts Covered under Warranty and Service Policy AGM300 Specifications ADM800 Specifications Instruction Headquarters Hunt Valley Circle, New Kensington, PA

AGM300, ADM800 specifications

The Bacharach ADM 800 and AGM 300 are advanced analyzers designed for efficient monitoring and detection of gases in various applications. Known for their reliability and accuracy, these instruments cater to commercial and industrial sectors, ensuring safety and compliance with environmental regulations.

The Bacharach ADM 800 is a portable gas detection device renowned for its ability to detect multiple refrigerants. With a user-friendly interface, it features a high-resolution display that provides real-time data on refrigerant concentrations, allowing technicians to quickly identify leaks during maintenance operations. One of its standout technologies is a highly sensitive thermal conductivity sensor, which enables the ADM 800 to differentiate between various hydrocarbon refrigerants with precision.

Equipped with data logging capabilities, the ADM 800 can store and retrieve measurement data, making it an invaluable tool for tracking refrigerant trends over time. The device supports USB connectivity for easy transfer of data to computers, facilitating detailed reporting and analysis. Its robust design incorporates a protective casing that ensures durability in challenging work environments, making it ideal for both field use and stationary applications.

On the other hand, the Bacharach AGM 300 is specifically crafted for continuous gas monitoring in HVAC systems. This stationary device excels in measuring concentrations of gases such as CO, CO2, and various refrigerants, ensuring optimal performance and compliance. The AGM 300 uses advanced electrochemical sensors for precise gas measurements, providing real-time feedback and alerting users to any hazardous conditions.

One of the notable features of the AGM 300 is its ability to integrate seamlessly with building management systems, enabling centralized control and monitoring of gas levels across multiple locations. This connectivity enhances the safety of industrial and commercial spaces by allowing for automated responses to detected gas levels, which can significantly mitigate risks associated with gas leaks.

Both models emphasize user-centric design, with intuitive interfaces and clear displays, making them accessible even to those with minimal training. Additionally, their low maintenance requirements and long sensor life contribute to reduced operational costs.

In conclusion, the Bacharach ADM 800 and AGM 300 are exemplary solutions for gas detection and monitoring. Their advanced technologies, robust features, and user-friendly designs make them indispensable for ensuring safety and regulatory compliance in various environments.
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