Bacharach ADM800, AGM300 manual Calibration Procedure

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Calibration Procedure

The CAL FACTOR is determined by sampling a known dilution of ammonia gas. The sample must be prepared to less than half the desired accuracy, and the concentration must be corrected for ambient temperature and pressure at the time of measurement.

Calibration is best performed at or near full scale (10,000 PPM). It can, however, be done at any concentration, and ideally in the range where maximum accuracy is desired down to, but not below, 100 PPM.

A cylinder of ammonia gas at a certified PPM level must be used to assure sampling occurs at ambient conditions. A minimum sample size of 5 liters is required.

The AGM should be operating for at least one hour prior to performing a calibration.

Prepare the AGM300 for sampling by initially setting its CAL FACTOR to 1.000 (Page 57). Next, set up the AGM300 for a logging interval of zero minutes (Page 42), and place the AGM300 in its zone hold mode for the zone you wish to set up (Page 45).

Connect the sample bag directly to the intake port for the zone you have set up and allow the AGM300 to sample the entire bag. When sampling is complete view the trend data for the zone used to sample (Page 53). Read the measured PPM by placing the cursor on the spikes cause by the sample. If the bag was large enough for multiple samples, average the most stable ones.

The new CAL factor is computed by dividing the known gas value by the measured value. Typically this value will be between 0.95 and 1.05. Enter the computed CAL factor into the monitor using the ADM800 (Page 57) or PC interface. This value is stored in non-volatile memory.

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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 Cleaning Hazard Symbols on MonitorInstallation Category Altitude LimitCommunication Options Functional OverviewGeneral Description Suggested Location of Sampling PointsChiller Machine RoomStandard Accessories for a 4 Point System LEDAGM300 Installation Considerations Locating the MonitorInspection Screw Locations InstallationAGM300 Mounting Instructions AGM300 Mounting SpecsAGM300 Side View AGM300 Connecting Air LinesOverview Inlet / Purge PortsConnecting Sample Intake Lines Connecting Purge LineConnecting Exhaust Line Tubing ConsiderationsAGM300 Interior Schematic ON/OFF Do not Apply PowerSwitches / Fuses / OUTAGM300 Electrical Wiring VAC InstallationAGM300 AC Input Power and Ground Connections Ammonia Display Module ADM800 Connection AGM300 Connecting Communication DevicesRS-485 Connector 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 Multiple AGM300’s Connected to a Building Management System Programming the AGM300 Using PC SoftwareAGM300 PC Software Unit Node Terminator Outout Building Management SystemTo Send a Saved Program to an AGM300 Saving the AGM300 Program to a Disk or DriveTo Open a Saved Program Trend DataUSB Type Laptops Sealevel SYSTEMS, INCOptional 4-20 mAdc Outputs Current Loop ConnectorAGM300 Current Loop Interfaces 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 Number of AGM Units Navigating to the 1st ADM Setup ScreenContrast AGM Baud RateEnabling Building Management System Connection Audible AlarmPassword Building Management System Stop BitsADM Setup Screen #2 Navigating to the 2nd ADM Setup ScreenSetting Relay Parameters AGM Node AddressScreen #1 AGM Setup Screen #1 AGM300 Setup ProgrammingNavigating to the 1st and then 2nd AGM Setup Screen AGM Setup Screen #2Location Number of Zones InstalledAlarm Ack Mode Zone Hold TimeAuto Re-Zero ModeLoop 2 Factor Zone ChangeNavigating to the 3rd AGM Setup Screen Service TimeoutAGM Setup #3 Screen Zone Setup Screen #1 ADM800 Zone Setup ProgrammingNavigating to the 1st Zone Setup Screen DistanceCurrent PPM Average TemperatureNavigating To the 2nd Zone Setup Screen Log IntervalRe-Setting the Peak PPM Value Spill LevelEvacuation Level Working with the Zone Screen General OperationFunctional Overview 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 ModeNavigating To the Trend Screen Working with the Trend ScreenOverview Log Interval 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 Navigating to the Calibration Screen Adjusting Calibration FactorWorking with the Calibration Screen Calibration ScreenCalibration Procedure Diagnostic Screen Overview Working with the Diagnostic ScreenNavigating to the Diagnostic Screen Diagnostic ScreenInstruction Service Mode System Screen Service ModeInstruction Appendix Servicing Air Lines AGM300 / ADM800 MaintenanceServicing Inline Filter 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 ParametersRegister Name Number Type Description Summary of RegistersData Type Abbreviations TIMUnused REVUnused TIM Minutes RS-485BAUDMSB Service mode register to change this parameterMode. do not Modify use zone hold register or 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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