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Instruction 3015-4275

Introduction

How to Use This Manual

Thank you for investing in a

BACHARACH

Ammonia Gas Monitoring System.

This manual provides important information on how to install, operate, and service the AGM300 Ammonia Gas
Monitor and ADM800 Ammonia Display Module.

Please Read this Manual Carefully Before Use

If you have a working knowledge of gas monitors, you will find this manual useful as a reference tool. If you are
new to the use of gas monitors, you can educate yourself about the principles of gas detection and the proper
operation of this device by reading this manual thoroughly.

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Summary of Contents for ADM800

Page 1: ...0 ADM800 Ammonia Gas Monitoring System Instruction 3015 4275 Installation Operation Maintenance Rev 3 May 2006 Product Leadership Training Service Reliability INSPECTION EQUIPMENT MEASURING EQUIPMENT...

Page 2: ...ental or consequential damages in connection with the furnishing performance or use of this material No part of this document may be photocopied reproduced or translated to another language without th...

Page 3: ...0 INSTALLATION 19 ADM800 INSTALLATION CONSIDERATIONS 20 ADM800 MOUNTING INSTRUCTIONS 21 ADM800 INTERIOR SCHEMATIC 22 ADM800 ELECTRICAL WIRING 24 ADM800 COMMUNICATION CONNECTIONS 26 ADM800 CONNECTING E...

Page 4: ...nd service the AGM300 Ammonia Gas Monitor and ADM800 Ammonia Display Module Please Read this Manual Carefully Before Use If you have a working knowledge of gas monitors you will find this manual usefu...

Page 5: ...accessing the interior of this instrument Only qualified electrical maintenance personnel should perform connections and adjustments Always de energize the power supply before working inside the instr...

Page 6: ...personal injury or death Caution Statements The use of the word CAUTION in this manual denotes a potential hazard associated with the use of this equipment It calls attention to a procedure practice...

Page 7: ...e setup from a personal computer Please refer to the Appendix for a more complete discussion of communication protocols Suggested Location of Sampling Points At the point of an ammonia gas leak the ga...

Page 8: ...s the main interface by which you program the AGM300 acknowledge alarms and observe conditions inside of the mechanical room Note that there are two additional alarm relay contacts in the ADM800 that...

Page 9: ...75 1 AGM300 Installation Upper Mounting Bracket Lower Mounting Bracket Water Trap STANDARD ACCESSORIES FOR A 4 POINT SYSTEM 5 Line End Filters P N 3015 3420 AGM300 ADM800 Instruction Manual P N 3015 4...

Page 10: ...NG Drilling holes in the AGM300 and ADM800 enclosure will void the warranty Please use knockouts provided for electrical connections WARNING Do not operate this equipment in the presence of flammable...

Page 11: ...s designed for 12 pan head fasteners Locate the four screws as shown in the diagram and leave the screw heads protruding approximately 3 16 AGM300 Mounting Specs Installation Hold the monitor flat aga...

Page 12: ...talled to provide clean air for resetting the infrared zero baseline An exhaust line is installed to vent residual gas away from the monitor All sample line connections are made on the left side of th...

Page 13: ...rminate in a location that is completely isolated from the purge line termination point and other areas of the facility that will be monitored Ideally this line should terminate outdoors in a location...

Page 14: ...s Power Supply Board Main Board Microcontroller Board Infrared Optical Bench Gas Sample Pump Primary Filter P N 3015 3071 Intake Manifold Solenoids Gas Sample Pump Infrared Optical Bench Microcontroll...

Page 15: ...Line Filter 230 VAC Units Only Dual 4 20 mAdc Outputs Signal Out Only DO NOT APPLY POWER RS 485 Connector Relay Connector Alarm 1 2 3 Fault 4 20 mAdc Interface Board Optional AC Power ON OFF Switch G...

Page 16: ...d to the monitor s Ground Stud 230 VAC Installation Locate the AC Input Line Filter s black and white wires and the Ground Stud on the inside of the enclosure Page 7 Using wire nuts secure the incomin...

Page 17: ...Instruction 3015 4275 9 AGM300 AC Input Power and Ground Connections...

Page 18: ...85 TO MONITORS connector using the same color code as used on the AGM300 Integrating with Building Management Systems The AGM300 may be connected directly to a Building Management System using a shiel...

Page 19: ...Each AGM300 on the network must have a distinct node address The node address may be set from 1 to 15 Four dip switches numbered 1 2 4 8 on the main circuit board are used to define this value by sett...

Page 20: ...agement 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 netwo...

Page 21: ...through serial port connection A three wire connection is used RXD TXD and GND No hardware flow control is used The AGM300 software automatically configures COM1 to match the AGM300 RS 232 communicati...

Page 22: ...aved program A or C etc Press ENTER select the proper program press ENTER again The saved program will be downloaded into the software To Send a Saved Program to an AGM300 Open the AGM300 PC software...

Page 23: ...a PCMCIA card that provides an RS 232 output We recommend the PCMCIA card manufactured by SEALEVEL SYSTEMS INC 155 TECHNOLOGY PLACE P O BOX 830 LIBERTY SC 29657 PHONE 864 843 4343 www sealevel com Par...

Page 24: ...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 conne...

Page 25: ...or of the monitor Locate the relay connector Page 7 and remove it from the circuit board Secure the leads to the connector orienting them as shown in the diagram below When you are through securing th...

Page 26: ...o the Common on the relay block Connect one end of strobe or horn to the NO of whichever level of alarm is appropriate for application The other end of strobe or horn is connected to the Line of the a...

Page 27: ...Instruction 3015 4275 19 ADM800 Installation ADM800 Oblique Photo Upper Lower Mounting Brackets Upper Mounting Bracket Lower Mounting Bracket...

Page 28: ...ould be performed by a certified electrician and should comply with all applicable local state and federal electrical safety codes WARNING Always de energize the power supply before working on the int...

Page 29: ...designed for 12 pan head fasteners Locate the four screws as shown in the diagram and leave the screw heads protruding approximately 3 16 ADM800 Mounting Specs Installation Hold the display module fl...

Page 30: ...ADM800 Interior Schematic Microcontroller Board CPU Reset Switch Main Board Ground Stud AC Power Front Panel Chassis Power Supply Board 120 230 VAC Input Microcontroller Board CPU Reset Switch Main B...

Page 31: ...RS 485 Connectors Terminator Switches Relay Connector Fuses 1 Amp 250 VAC P N 3015 4011 Terminator Switches F2 F1 TO MONITORS RS 485 to HGM300 Monitors TO HOST RS 485 to Building Management System Re...

Page 32: ...re green along with the ground wire connected to the front panel to the unit s Ground Stud 230 VAC Installation Locate the AC Input Line Filter s black and white wires and the Ground Stud on the insid...

Page 33: ...Instruction 3015 4275 25 ADM800 AC Input Power and Ground Connections...

Page 34: ...oint the middle note the wire color Connect the ground to the GND connection point Make the wire run to the AGM300 and connect the twisted shielded pair to the AGM300 RS 485 connector Page 7 using the...

Page 35: ...The terminator switch for the RS 485 TO HOST connector is shipped from the factory in the terminated or IN position This is the correct setting if the ADM800 is the last device on the network chain I...

Page 36: ...s on Page 36 Connection Use the AC conduit or any of the remaining service knockouts to gain access to the interior of the ADM800 Locate the relay connector Page 23 and remove it from the circuit boar...

Page 37: ...Instruction 3015 4275 29 ADM800 Operation ADM800 Exterior Schematic Display Screen Navigation Buttons Cursor Pad LED Indicators LED Indicators Display Screen Cursor Pad Navigation Buttons...

Page 38: ...sed to move about screens enter setup information and choose between setup parameters When entering information the LEFT RIGHT keys move the cursor across an entry field while the UP DOWN keys scroll...

Page 39: ...Please refer to the Appendix for a logic diagram of all the screen displays There is a 15 minute warm up period after power is first applied Under AGMS WARM UP is displayed The green indicator on the...

Page 40: ...screens to observe settings or monitor network status The password can be alphanumeric The unit is shipped with password protection OFF Entering a password in ADM Setup Screen 1 enables password prote...

Page 41: ...the field to the value you wish to edit Use the UP DOWN cursor keys to modify the field value and press the ENTER key to accept your entries When you are through editing the date time value do one of...

Page 42: ...ON NET key to adjust the number 2 Use the UP DOWN cursor keys to modify the setting 3 Press ENTER to accept the new entry or QUIT to revert to the previous setting NOTE When first powered up the ADM80...

Page 43: ...of stop bits for the ADM800 on a Building Management System 1 Press the BMS STOPBITS key to adjust the setting 2 Use the UP DOWN cursor keys to modify the setting 3 Press ENTER to accept the new entr...

Page 44: ...ct unused monitor on evacuate spill leak fault or alarm 3 Press ENTER to accept the new entry or QUIT to revert to the previous setting AGM Node Address This value is the node address from 1 to 15 ass...

Page 45: ...AGM Setup Screen From the System Screen press the key adjacent to the target AGM300 to go to that unit s AGM Setup Screen 1 AGM Setup Screen 1 From AGM Setup Screen 1 press the SETUP key to go to AGM...

Page 46: ...ng 2 Use the UP DOWN cursor keys to toggle between settings AUTO Non latching Alarm relay will automatically de energize when the gas level drops below its alarm point MANUAL Latching Alarm relay rema...

Page 47: ...the entry field and the UP DOWN cursor keys to modify the individual numbers 3 Press ENTER to accept the new entry or QUIT to revert to the previous setting Re Zero Mode This parameter defines the fr...

Page 48: ...ut Sets the length of time the Service Mode is in effect Stops the monitor for up to 240 minutes 4 hrs to allow for servicing the unit See Service Mode on Page 61 1 Press the SERV TIMEOUT key to adjus...

Page 49: ...have up to 12 alphanumeric characters 1 Press the LOCATION key to enter or modify the name of the zone 2 Use the LEFT RIGHT cursor keys to move across the entry field and the UP DOWN cursor keys to m...

Page 50: ...es 24 hours A value of 000 indicates that each measurement for a given zone is logged into the trend log 1 Press the LOG INTERVAL key to adjust the log interval value 2 Use the LEFT RIGHT cursor keys...

Page 51: ...han the evacuate level and greater than the leak level Evacuation Level This is the concentration level in PPM that will activate an evacuate alarm condition 1 Press the EVAC LEVEL key to adjust the v...

Page 52: ...date the status information for all zones To display all the zones being monitored go to the System Screen page 31 and press the ZONES key Working with the Zone Screen The top level Zone Screen provid...

Page 53: ...to the Zone Setup 1 Screen Page 41 To release the zone from the hold mode press and hold down the adjacent key until the unit beeps and the screen display reverts to normal You may also press and hold...

Page 54: ...the Alarm Summary Screen Page 50 See Working with Alarms on Page 50 to learn more about responding to alarms Fault Conditions If a system malfunction occurs the yellow FAULT LED will glow Additionall...

Page 55: ...n is detected anywhere on the network the red ALARM LED will glow Additionally an external alarm device may activate and an audible alarm may sound if those features have been enabled Pages 28 35 The...

Page 56: ...og Screen Alarm Log Screen Use the LEFT RIGHT and UP DOWN cursor keys to move through the log The Alarm log shows the last 20 alarm events An alarm event is the occurrence of any alarm any change in a...

Page 57: ...ound if those features have been enabled Pages 28 35 The FAULT box on the right of the screen will blink and then counts the number of AGM units on the system with a fault To investigate a fault press...

Page 58: ...to be acknowledged for the system to return to normal operation Responding To Alarms There are two screens from which an operator can respond to alarms From the System Screen Page 31 press the key ad...

Page 59: ...the alarm including Complete location information Current PPM Peak PPM and peak time Type of alarm alarm time and date This screen includes three active navigation keys at the bottom of the display A...

Page 60: ...arm has been acknowledged Repeat this procedure to acknowledge any remaining alarms Alarm Summary Screen Acknowledge Mode Once all the alarms associated with a given AGM300 are acknowledged its red AL...

Page 61: ...s AGM Setup Screen 1 Next press the ZONES key to go to Zone Setup Screen 1 and then press the TREND key at the bottom of the display to go to the Trend Screen From the top level Zone Screen Page 44 pr...

Page 62: ...8 35 Depending on the nature of the fault the AGM300 may or may not continue to operate normally Under a non critical fault condition the AGM300 will continue to measure and log data but some peripher...

Page 63: ...perature Call the factory with this information for further instructions BENCH TEMP FAULT Optical bench is outside of normal operating range or sensor has failed Check the installation to verify that...

Page 64: ...he yellow FAULT LED will turn off and any external alarms connected to the AGM300 unit will de activate The ADM800 will return to normal operation the next time it polls the affected monitor Viewing F...

Page 65: ...cifications Navigating to the Calibration Screen First display the System Screen Page 31 Next press the key adjacent to the target AGM300 unit to go to that monitor s AGM Setup Screen 1 Page 37 Finall...

Page 66: ...r 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 A...

Page 67: ...lue can range from 3 900V to 4 500V LINE 2 Average Detector Voltage This is simply a running average of the values displayed in line 1 LINE 3 Zero Voltage This is the IR sensor output that was stored...

Page 68: ...om the temperature sensor itself This value can range from ambient to ambient 15 degrees C LINE 10 Box Temperature This is the current internal enclosure temperature along with the raw voltage from th...

Page 69: ...ivated From the System Screen Page 31 select the key adjacent to the AGM unit you wish to place into its Service Mode From AGM Setup Screen 1 Page 37 press the SERVICE MODE ENTRY key twice within 3 se...

Page 70: ...62 Instruction 3015 4275 Notes...

Page 71: ...Instruction 3015 4275 63 Appendix...

Page 72: ...Air Lines System air lines should be checked periodically for obvious signs of kinks damage and contamination Replace the tubing as required with P N 304 2742 or equivalent The end line filters shoul...

Page 73: ...en follow the instructions earlier in this manual to install the air lines and complete the zone programming steps The AGM300 setup must also be updated to recognize the new zones 4 20 mA Interface Bo...

Page 74: ...66 Instruction 3015 4275 ADM800 Logic Diagram...

Page 75: ...such as the ADM800 or a Building Management System over the RS 485 serial interface The monitor is configured with a two wire RS 485 serial bus and therefore data transmission occurs in half duplex mo...

Page 76: ...tures become the destination for responses to read queries and sources for preset register commands When a read holding register query is made by the master device the AGM300 responds by sending the c...

Page 77: ...ortant to understand that the ADM800 will only pass messages through to the AGM300 when the ADM800 is either in the SYSTEM screen or the ZONE VIEW screen If the ADM800 is in any other screen it will r...

Page 78: ...urement of sensors Rel Hold 0x0017h W Release AGM300 out of hold mode Hold Zone 0x0018h W Put AGM300 into hold mode Fault Log 0x19xxh R 20 most recent fault events xx 00 or 01 Alarm Log 0x1Axxh R 20 m...

Page 79: ...Alarm Operation Manual Acknowledge 0 Auto Acknowledge 1 DEFAULT 0 Num_Zones UC 1 byte Number of install zones Value initialized during auto detect during Power On Self Test UNUSED TIM 13 bytes UNUSED...

Page 80: ...nt UC 1 byte Number of alarms that are currently active DO NOT MODIFY UNUSED UC 1 byte UNUSED Loop_Card UC 1 byte Value 1 if 4 20mA card has been detected DO NOT MODIFY Fault UI 2 bytes See Note Below...

Page 81: ...arm UC 1 bytes Alarm Status 0 no alarm 1 leak 2 spill 3 evac Leak Level UI 2 bytes Level to trigger a leak alarm in PPM DEFAULT 100 Spill Level UI 2 bytes Level to trigger a spill alarm in PPM DEFAULT...

Page 82: ...he system register to 0 In this mode if an alarm condition occurs an AGM300 alarm will be created In order for the alarm to be removed the MODBUS master will write a 0 to the ALARM parameter in the ZO...

Page 83: ...o the code New Gases can be added in the field by selecting a similar existing cal curve and then defining a cal factor that will bring the accuracy within the desired range It is strongly recommended...

Page 84: ...4 Optical bench temp in degrees C at last zero interval Box_Z_T Float 4 Box temp in degrees C at last zeroing PkPk_int UI 2 Current peak to peak A D counts from detector PkPk Float 4 Current peak to p...

Page 85: ...Read the AGM300 Status Register 0x0011h Modify the content of the status register structure to change the MODE parameter to zone hold mode and the active zone parameter to the zone which you wish to...

Page 86: ...alue as defined in NOTE 2 of Zone Data Ptr UC 1 byte Pointer to most recent event Unused UC 1 byte Alarm Log Register Register 0x1A00h 0x1A01h 0x1A02h R 582 bytes These registers contain the 20 most r...

Page 87: ...erval defined by the service_mode_TO parameter in the System Data Register In order to place the AGM300 into service mode use the following sequence Read the AGM300 Status Register 0x0011h Modify the...

Page 88: ...is 0x30yyh for zone 2 the register address is 0x31yyh etc The data for each zone is sent in 8 consecutive registers due to MODBUS RTU message length constrains The addresses are defined by the yy plac...

Page 89: ...elect to have Seller s Service Department repair the equipment at Purchaser s facility Purchaser must contact Seller s Service Department to arrange for a Service call Parts will be free under the ab...

Page 90: ...read and comply with the instructions provided in the Operations and or Service Manuals Scheduling of all field servicing is at the discretion of the Factory Service Department and will be based upon...

Page 91: ...e Drift 0 3 of reading per degrees C Sampling Mode Automatic or manual hold Re Zero Auto or on zone change Response Time 5 to 120 seconds depending on air line length and number of zones System Noise...

Page 92: ...condition is displayed Password Protection The ADM800 can be password protected to prevent the unauthorized editing of setup parameters without disturbing the ability to monitor system outputs Power...

Page 93: ...Instruction 3015 4256 85 Notes...

Page 94: ...Hunt Valley Circle New Kensington PA 15068 Ph 724 334 5000 Fax 724 334 5001 Toll Free 1 800 736 4666 Website www bacharach inc com E mail help bacharach inc com Printed in U S A Registered Trademark...

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