Bacharach ADM800 manual AGM300 Current Loop Interfaces, Optional 4-20 mAdc Outputs, Connection

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AGM300 - Current Loop Interfaces

Optional 4–20 mAdc Outputs

Upon installation of the optional 4–20 mAdc Interface Board (Page 7) (P/N 3015-3133), the AGM300 has the capability of providing dual 4-20 mAdc scrolling current loop outputs for connection to external monitoring devices.

The interfaces are set up as follows: Loop 1 indicates zone area Loop 2 indicates PPM

Connection

The external devices are connected to the AGM300 using a shielded dual twisted pair cable. Use any of the remaining service knockouts to gain access to the interior of the monitor. Locate the Dual 4–20 mAdc Output connector (Page 7) and remove it from the circuit board. Secure the wire leads to the connector orienting them as shown in the diagram below. Check to make sure the polarity matches the wiring at the external device. When you are through securing the connections, carefully plug the connector back onto the circuit board.

NOTE: When one or both current loop outputs are not used, install a jumper wire between the ground the unused loop terminal(s) to prevent the system from generating a current loop fault.

CAUTION - The loop outputs have isolated grounds. Therefore, the cable shield should be terminated at the receiver and not at the AGM300. The signal for both current loops must be returned to the AGM300.

NOTE:

SIGNAL OUT

ONLY DO NOT APPLY POWER

Current Loop Connector

GROUND

LOOP 1

ZONE

LOOP 2

PPM

NOTE: The ground connections are common.

LOOP 1 = ZONE

LOOP 2 = PPM

5 mAdc = Zone 1

Default

6 mAdc – Zone 2

0.016 mAdc = 1 PPM

---

Scalable via Software

---

4 mAdc = 0 PPM

20 mAdc = Zone 16

20 mAdc = 1000 PPM

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Instruction 3015-4275

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Contents AGM300 / ADM800 Ammonia Gas Monitoring System Rev MayInstruction Table of Contents How to Use This Manual IntroductionPlease Read this Manual Carefully Before Use 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 LEDAGM300 Installation Considerations Locating the MonitorInspection 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 SystemsChanging Terminator Settings Personal Computer Refer to AGM300 PC Software SectionOUT Connecting to a Building Management System Multiple AGM’sRS-485 Connections Between AGM300’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 ADM800 Communication Connections AGM300 NetworkIntegration with Building Management System Changing Terminator Switch Settings To MonitorADM800 Connecting External Alarms ADM800 Relay ConnectorADM800 Exterior Schematic ADM800 OperationADM800 Overview ADM800 Screen Displays System ScreenSetup Parameters Password ProtectionADM800 System Programming ADM800 Setup Programming Setting the ClockClock Setup Screen 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 ChangeNavigating to the 3rd AGM Setup Screen Service TimeoutAGM Setup #3 Screen 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 IntervalRe-Setting the Peak PPM Value Spill LevelEvacuation 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 Working with Alarms Responding To AlarmsAlarm Summary Screen Alarm Detail Screen Alarm Detail ScreenAcknowledging Alarms Alarm Summary Screen Acknowledge ModeWorking with the Trend Screen Overview Log IntervalNavigating To the Trend Screen Trend ScreenWorking with System Faults Navigating to the Fault ScreenFault Screen Reset to Factory Default Settings Critical FaultsClearing System Faults Viewing Fault LogFault Log Screen 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 FusesOptional Accessories Intake ManifoldsMA Interface Board 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 LSBZone Data Register 0x12xxh R/W 78 bytes Variable Type Length DescriptionGood. do not Modify Instruction Instruction Stpppm To Release the Zone Hold Use the Following Sequence of Steps Fault Log Register Register 0x1900, 0x1901h Bytes Instruction Point to current reading Time record for each of the 100 log points. The formatLast 100 log points 2 byes per point Warranty and Service WarrantyService Return Procedure Products Covered under Warranty and Service PolicyField Repair 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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