AMC-400 Series - Armstrong Monitoring Corporation
Contents
1. Sensor Location GND test point Figure 3 3 Smart Sensor 2 View 16 SS2 Male Connector This 7 pin connector mates with the Digital Transmitter Assembly female connector This connector carries the power and communication 17 GND Test Point This GND Test Point is to be used by service technicians only with appropriate instrumentation such as a voltmeter It is the signal reference point for the smart sensor 2 control logic 18 VDD Test Point This VDD Test Point is to be used by service technicians only It is the smart sensor 2 control logic supply voltage and must be 3 42 to 3 78 Volts DC 11 AMC 400 Series Digital Transmitter with Smart Sensor 19 VREF Test Point 20 Sensor 21 CTR Test Point 22 SIG Test Point This VREF Test Point is to be used by service technicians only It is the potentiostat sensor reference and must be 1 8 Volts DC This component may be a variety of 2 or 3 pin electrochemical sensors This component is securely fastened with glue to Smart Sensor 2 Assembly This CTR Test Point is to be used by service technicians only with appropriate instrumentation such as a voltmeter It is the potentiostat counter output used by a 3 pin electrochemical sensor Under ideal operation zero gas situation it is normally 1 8 Volts DC VREF This Sig Test Point is to be used by service technicians only with appropriate instrumentation such as a voltmeter It is the potentios2. LN n D Ds TENER P El PS SINS IS UNS En a ai tee bP te 8 6 0 agg hott spe T H O Ey G IO kT CONNECTOR R j Note N 1 There is always AC modus termination on the last transmitter connected in the system e Q 1 2 More than 2 transmitters can be connected to a single monitor TA SC v 3 Power shielded cabling is optional a4 5 ler 7 C d lt Sein 24 VDC PWR IN AUT C td CS hoy NETWORK 15 AMC 400 Series Digital Transmitter with Smart Sensor Figure 4 3 Example of Connections to a AMC 1DAX Monitor Warning Care must be taken when connecting services to Power and Communication Connector Avoid using SIG GND for powering Cable shield s are to be connected to CGND Mixing power and communication connections can cause permanent damage Consistent polarity of RS 485 wire is required throughout network for proper system operation 4 2 1 1 POWER SUPPLY The AMC 400 Digital Transmitter assembly is to be powered by the AMC 1DAX monitor Power Supply An AMC 400 Digital Transmitter is powered through a cable on AC1 and AC2 connections as shown in the REAR LID OVERVIEW item 8 Power and Communication Connector The rectified unregulated V Test Point voltage must be between 8 and 42 Volts DC The shield of the cable
3. AMC 91A0F Sensor Height Above Finished Floor 4 6 Feet AMC 400 Series Digital Transmitter with Smart Sensor Sensor BE 6 Years Sensor Warranty iii oes Snare SPCHACLIPMM eege AR 0 100ppm Zero Buffering of Display 8ppm Calibration Adapter Part Number GE Gas Flow Rate 5L min Gas 1 E NITROGEN DIOXIDE NO2 Sensor Order Number AMC 98AHC Sensor Height Above Finished Floor 4 6 Feet Sensor Er Dp 2 Years Sensor Marta 5 2 erre eer ni oreet Treats Span GAS bes ee a Lt 0 10 0ppm Zero Buffering of Display lt 0 8ppm Calibration Adapter Part Number OME CEERE Gas Flow Rate bL min AMC 400 Series Digital Transmitter with Smart Sensor 3 PRODUCT DESCRIPTION The AMC 400 Digital Transmitter is designed to provide continuous reliable monitoring of ambient air for the target gas listed in the SENSOR MODULE S SPECIFICATION This unit is hot pluggable and powered by either AC or DC power source and provides digital representation of the gas concentration detected A digital gas concentration display is provided which may be configured to remain blank Each sensor transmitter unit is factory calibrated and is ready for field installation and operation Each sensor module features alarm indicators and connection terminal blocks as listed and described below 3 1 OVERVIEW The
4. RER 0 BEIBBE finish display PB gt 01 0 Enter Gasing gt GAS gt ON Gas On Instruction Maximum 60seconds PB or RER to continue gt _uP Increasing Concentration PB or BEB to end gt dn_ Decreasing Concentration PB or BEB to end gt 1 80 Stable Concentration Monitors for 10 signal voltage consecutive stable samples Minimum 25 seconds PB or RER to end gt GAS gt OFF Gas Off Instruction BED to Accept PB or idle Maximum 60 seconds to discard bad 36 AMC 400 Series Digital Transmitter with Smart Sensor gt Acc or bad Confirmation 1second B gt OCA ZERO Calibration Title E to Zero Gas Menu PB gt A04 ZERO Calibration Choice Scroll to next Choice BER gt A05 SPAN Calibration Choice S SPAN Calibration PB SC SPAN Calibration Title Scroll to Enter Gas Concentration BER 100 Default or Last Gas S to edit 1 Concentration position Gas RER o Se 2 position BER gt 0 BEIBBI 2 position PB gt 110 Change 2 position lt PB gt 120 Change 2 position lt PB gt 130 Change 2 position lt PB gt 140 Change 2 position lt PB gt 150 Change 2 position BER gt 150 Sae 3 position PB 1 Change 3 position PB gt 250 Change 3 position PB gt 350 Change 3 position PB 450 Change 3rd position PB gt 550 Change 3rd position PB 650 Change 3rd position PB g
5. SST_WATCHDOG 0x0002 SST_LOW_VOLT 0x0004 SST_ILL_CODE 0x0008 SST_PIN_RESET 0x0010 SST_TEST_REBOOT 0x0020 SST_MOD_LOCKUP_REBOOT 0x0040 SST SMB LOCKUP REBOOT 0x0080 A2D Fault Analog To Digital Subsystem a 16bit 39 1 Read wide fault field of transmitter s A2D subsystem internal temperature device and DC input voltage monitoring Enumeration Name Field Enumeration A2D NO FAULT 0x0000 A2D_TIMEOUT_FAULT 0x0001 A2D_HIGH_TEMPERATURE_FAULT 0x0002 A2D LOW TEMPERATURE FAULT 0x0004 A2D HIGH VOLTAGE FAULT 0x0008 A2D_LOW_VOLTAGE_FAULT 0x0010 12C Fault Inter Intergrated Circuit Subsystem a 40 1 Read 16bit wide fault field of transmitter s I2C subsystem and attached EEPROM device Enumeration Name Field Enumeration I2C_NO_FAULT 0x0000 I2C TIMEOUT FAULT 0x0001 I2C HARD FAULT 0x0002 I2C_RXAK_FAULT 0x0004 I2C_OPEN_WRITE 0x0008 I2C_BAD_UPGRADE 0x0010 I2C_NEW_FIRMWARE 0x0020 43 AMC 400 Series Digital Transmitter with Smart Sensor SMB Fault SS2 Communication Bus a 16bit wide 41 1 Read fault field of transmitter s SMB subsystem Enumeration Name Field Enumeration SMB NO FAULT 0x0000 SMB_CE_FAULT 0x0001 SMB_OVRR_FAULT 0x0002 SMB_MSG_FAULT 0x0004
6. User Interface for Configuration AMC 400 Series Digital Transmitter with Smart Sensor 3 3 REAR LID OVERVIEW T Modbus Termination Smart Sensor 2 Termination SS2 female connector Transmitter board coena SS2 mounting hole SS SS2 Board mounted x i Mounting Standoffs RS485 A RS485 B F CETTE DD CGND j SIG GND 1 ACHT 7 AC2 7 OQO OJ SS2 board ve Q V test point 10 VDD test point GND test point 8 Power and communication connector Figure 3 2 Rear Lid View Note When mounting the Smart Sensor module it is possible for its male header pins to miss the receptacle of the Digital transmitter completely Warning Care must be taken when connecting services to Power and Communication Connector Avoid using SIG GND for powering Cable shield s are to be connected to CGND Mixing power and communication connections can cause permanent damage Consistent polarity of RS 485 wire is required throughout network for proper system operation 10 11 12 13 14 15 Power and Communication Connector GND Test Point VDD Test Point V Test Point SS2 Female Connector Smart Sensor 2 Termination MODBUS Termination SS2 Mounting Hole AMC 400 Series Digital Transmitter with Smart Sensor This 6 pi
7. 33 9 APPENDIX USER SUPPORTED MENU GUIDE 34 10 APPENDIX MODBUS REGISTER MAP eeeeee eene nenne nnne 39 AMC 400 Series Digital Transmitter with Smart Sensor LIST OF FIGURES Figure Title Page Figure 3 1 Front Eg VIGW eo ooo atero se edd de ite e i egi erp idee dede sta etos 7 Figure 3 2 Reat Lid View c 9 Figure 3 3 Smart Sensor 2 View EEN 11 Figure 4 1 Conduit MOUNTING cec dot ony eser nerit derent ise ac nce ea ducet decur dienen gena 14 Figure 4 2 Example of Electrical Wiring of Digital Transmitter S cccceesceeeeeeeeeeeeeeeeneeees 15 Figure 4 3 Example of Connections to a AMC 1DAX Monitor sssssssssssereseesssserrerrneesssrrrrrrnn 16 Figure 5 1 Front Panel User Interface E 20 AMC 400 Series Digital Transmitter with Smart Sensor 1 GENERAL INFORMATION 1 1 WARRANTY The AMC 400 Digital Transmitter is warranted against defects in material and workmanship for a period of two years from date of delivery Maintenance items are not warranted During the warranty period The Armstrong Monitoring Corporation will repair or replace components that prove to be defective in the opinion of AMC Any equipment deemed to be defective by the user should be returned to The Armstrong Monitoring Corporation for evaluation see product return below Site visits by Armstrong personnel to evaluate repair equipment are not covered by thi
8. SEZ choice Push and hold gt 2seconds and release to enter service mode In Service Mode 2 the qualified personnel must enter a gas concentration to be forced to the monitor Once entered the Service Modes will continuously transmit gas concentration and type to the monitor This entry is similar to MODBUS address modification in INITIAL CONFIGURATION To exit service modes push and hold gt 2seconds and release Short press pushbutton to scroll through items to return to SZ exit point Push and hold gt 2seconds and release to return to AZ4 item Again short press pushbutton to scroll through items to return to CF exit point Push and hold gt 2seconds and release to return to normal operation 30 AMC 400 Series Digital Transmitter with Smart Sensor 6 MAINTENANCE Maintenance is a very important activity that should be done at the proper time intervals which are discussed below 6 1 GENERAL The AMC 400 Digital Transmitter should be brushed or wiped as required depending on the rate of accumulation of any dust or dirt To avoid sensor damage the unit MUST NOT be submerged in any liquids Hosing or splashing of the unit with any liquids must also be avoided 6 2 SCHEDULED CALIBRATION Scheduled calibration is critical in maintaining proper function of gas sensor transmitters It is recommended that the AMC 400 Digital Transmitter be calibrated a minimum of twice a year or more often for demanding work place ap
9. SMB_CRC_FAULT 0x0008 SMB SCI1 FAULT 0x0010 SMB_RETRY_FAULT 0x0020 SMB TOO MANY IDS 0x0040 SMB NO SMB ONLINE 0x0080 SMB OVRF FAULT 0x0100 SMB_RMSG_FAULT 0x0200 SMB_PMSG_FAULT 0x0400 SMB_IDMSG_FAULT 0x0800 SMB_DMSG_FAULT 0x1000 MODBUS Fault MODBUS Subsystem a 16bit wide 42 1 Read fault field of transmitter s MODBUS subsystem Enumeration Name Field Enumeration MOD_NO_FAULT 0x0000 MOD_CE_FAULT 0x0001 MOD_OVRR_FAULT 0x0002 MOD_MSG_FAULT 0x0004 MOD_CRC_FAULT 0x0008 MOD_SCI2_FAULT 0x0010 MOD_DECODE_FAULT 0x0020 LCD Fault LCD Subsystem a 16bit wide fault field 43 1 Read of transmitter s LCD subsystem Enumeration Name Field Enumeration LCD NO FAULT 0x0000 LED Fault LED Subsystem a 16bit wide fault 44 1 Read field of transmitter s LED subsystem Enumeration Name Field Enumeration LED NO FAULT 0x0000 PB Fault PushButton Subsystem a 16bit wide 45 1 Read fault field of transmitter s Pushbutton subsystem Enumeration Name Field Enumeration PB NO FAULT 0x0000 44 AMC 400 Series Digital Transmitter with Smart Sensor TIM Fault Timer Subsystem a 16bit wide fault 46 1 Read field of transmitter s Timer subsystem Enumeration Name Field Enumeration TIM NO FAULT 0x0000 TIM_LATENCY_FAULT 0x0001 SS2 Fault Smart Sensor 2 Subsystem a 16bit 47 1 Read wide fault field of transmitter s Smart Sensor 2 subsystem Enume
10. Sensor is a two part assembly Transmitter and Smart Sensor module Both modules have Microcontroller MCUs to manage and communicate the information in a digital formal The Transmitter communicates with a monitor i e AMC 1DAX and carries a Smart Sensor module The monitor and transmitter communicate to each other over RS 485 using MODBUS RTU The smart sensor acquires data from an electrochemical gas sensor and communicates its gas concentration to the transmitter The smart sensor module is designed for modular Exchange Program for calibration purpose Note All Armstrong Monitoring systems must be installed and maintained according to instructions to assure proper operation Only qualified personnel should install and maintain the equipment For exchange re calibration or extended warranty programs information please call 1 800 465 5777 or through contacts at www armstrongmonitoring com 2 1 1 TRANSMITTER MODULE SPECIFICATION Transmitter Order Number AMC 400A Power Supply Two Wire optional Shield Requirement 12 to 24 VDC AC Warrahly eebe EE 2 Years Operating Temperature 20 to 50 C Operating Pressure 0 9 to 1 1 atm TIG qvo SES 15 to 90 RH non condensing Two Wire with Shield lte E lt BE Modbus RTU over RS 485 9600 Baud 8bit Even Parity Se CARBON MONOXIDE CO DID aiaa Sensor Order Number
11. configuration and calibration sub sections 19 AMC 400 Series Digital Transmitter with Smart Sensor 8 Display nial 4 Smart Sensor 2 am 9 pesce status LED i TRANSMITTER SENSOR mE status mni Dn BWM Gol m DE 8 Modbus Address IGITAL CALIBRATE REGULARLY FOR SAFETY www armstrongmonitoring com 800 465 5777 RO Push button Figure 5 1 Front Panel User Interface Note The Pushbutton reference point 1 is positioned behind the front panel and requires a small TOOL SCREWDRVR SLOT ESD 1 5MM Wiha 27215 to access it through a small hole The Pushbutton allows a user to navigate through configuration menu The pushbutton has two states short and long button press Short press is less than two seconds while long press is greater than two seconds Feedback of the pushbutton state is provided on the display A short press will display both decimal points while a long press will display SEL As an example the pushbutton must be pressed and held for at least 2 seconds to enter configuration The display will indicate S L when user has held the pushbutton long enough to enter the configuration menu The Display has 3 character positions with two decimal points each character has 7 segments The LCD can display numbers and various alphabetic characters Some alphabetic characters are upper case while others are lower case In normal operation the display will cycle between
12. into a 32bit number used to describe the location of the transmitter The first character of string is the most significant byte bits 31 24 A character position value of 0x00 will terminate the string LED MCU Status Control a 16bit wide fault field of 36 1 Read current transmitter state Enumeration Name Field Enumeration INIT MODE 0x0000 RUN_WITHOUT_MODBUS_MODE 0x0001 RUN_WITH_MODBUS_MODE 0x0002 HARD_FAULT_MODE 0x0004 SOFT_FAULT_MODE 0x0008 CONFIGURATION_MODE 0x0010 TEST_MODE 0x0020 DT Fault a 16bit wide fault field recorded of all 37 1 Read high level transmitter faults Fault bit s are set under fault condition along with appropriate fault register See appropriated fault register bits for details Enumeration Field Enumeration Name DT NO FAULT 0x0000 SST_FAULT 0x0001 A2D_FAULT 0x0002 I2C_FAULT 0x0004 SMB_FAULT 0x0008 MOD_FAULT 0x0010 LCD_FAULT 0x0020 LED_FAULT 0x0040 PB_FAULT 0x0080 TIM_FAULT 0x0100 SS2_FAULT 0x0200 REG_FAULT 0x0400 42 AMC 400 Series Digital Transmitter with Smart Sensor SST Fault System Self Test a 16bit wide fault 38 1 Read field of transmitter s system self testing Fault bit s are set under fault condition during power up and runtime operation Enumeration Name Field Enumeration SST NO FAULT 0x0000 SST_BROWN_OUT 0x0001
13. is in Complete configuration and exit Green Red configuration mode Fast Blinking Smart Sensor is in Complete calibration and exit Green Red gassing state of calibration Blinking Red for 10seconds every minute of Slow Blinking Green Smart Sensor requires services either calibration or has reached end of life DT display will complement this with CAL or EOL indication Consult calibration section in this manual or contact AMC It is not recommended to operate Smart Sensor after end of life or when calibration is needed Sensor operated beyond CAL or EOL may provide erroneous readings Fast Blinking Red Smart Sensor has experienced a minor fault in the last 10 seconds of operation Check if Smart Sensor has valid operating limits i e power supply temperature and Smart Sensor addressing Consult AMC for service if status persists Solid or long period Red Green or Orange Smart Sensor has experienced a severe fault Wait one to two minutes for unit to enter normal mode Consult AMC for service if status persists LED Extinguished Smart Sensor is powered off Check Smart Sensor wiring or power supply state Consult AMC for service if status persists Note The Smart Sensor will experience a reboot and enter initialization state slow blinking RED Sensor Status LED if no transmitter requests are detected for a period of five minutes Additionally a fai
14. release to move to next most significant digit position Repeat sequence for second digit and third digit When the MODBUS address is displayed use a short press to return to FOr 7 Use short presses to scroll to item CS and push and hold the pushbutton for gt 2 seconds and release to return to A01 Use short presses to scroll to item A03 8 To enter Digital Transmitter Configuration the user must push and hold for gt 2seconds and release at item A03 The title dv will be displayed Scroll through to d01 push and hold for gt 2seconds and release to enable LCD blanking LCD will blank after 1 minute of pushbutton inactivity pressing the pushbutton restores display Alternatively scroll to d02 push and hold for gt 2seconds and release to disable LCD blanking Or scroll to d03 push and hold for gt 2seconds and release to enter Digital Transmitter location label Location labeling allows a unique 3 character string to be assigned to Digital Transmitter This procedure is similar to entering the MODBUS address but the choices are alphanumeric Note Currently location label is not required by a monitor or controller and can be used as needed to store and retain user information 9 Items A04 to A06 can be skipped for initial configuration 25 AMC 400 Series Digital Transmitter with Smart Sensor 5 3 CALIBRATION This calibration procedure is applicable for all versions of the AMC 400 Digital Transmitter Every A
15. title 7c will be displayed At this point short press pushbutton to display the Zero Gas Concentration If the zero gas concentration is to be modified then push and hold for gt 2seconds and release The gas concentration can be modified one digit at a time similar to MODBUS address modification in INITIAL CONFIGURATION Once all digits have been modified another short press will advance procedure to the gassing phase The AMC 400 Digital transmitter may ignore modifications if the gas concentration entered is not acceptable At the beginning of zero calibration the AMC 400 Digital Transmitter will display GaS 0n Begin gassing at this point to perform a T99 type calibration The qualified personnel can begin gassing after this point to perform a T90 type calibration by advancing the procedure to measurement phase with a press of the pushbutton During zero gassing measurement the display will indicate either Tne or dEc depending of signal level from sensor increasing or decreasing respectively Also the LCD will display the sensor voltage when the gas concentration is not changing The measurement phase contains a minimum and maximum gassing period and will automatically complete after gas measurement is stable Proceed to calibration complete by pressing the pushbutton During zero calibration complete the AMC 400 Digital Transmitter will display GaS OFF At this point the qualified personnel must acce
16. 1 3 TRANSMITTER STATUS LED The Transmitter Status LED under normal operation should be slow blinking green indication Slow blinking green indicates MODBUS communication detected and no transmitter faults Numerous transmitter faults can occur under various situations and is indicated with momentary fast blinking red indication A fast blinking green indicated no MODBUS communication present and no transmitter faults Note AMC 400 Digital Transmitter Status LED will momentarily fast blink red under a minor transmitter fault situation such as erroneous MODBUS packet Consult AMC for service if minor transmitter fault persists 21 Below is the possible Transmitter Status LED AMC 400 Series Digital Transmitter with Smart Sensor Transmitter LED State Definition Action Slow Blinking Red Transmitter initializing Wait for initialization to complete Slow Blinking Green Transmitter is healthy No action required Fast Blinking Green Transmitter is healthy but no MODBUS communication detected Check if monitor is MODBUS connected and not in setup Slow Blinking Transmitter is in Complete configuration and exit Green Red configuration mode Fast Blinking Transmitter is in Complete calibration and exit Green Red gassing state of calibration Fast Blinking Red Transmitter has experienced a minor fault in the last 10 seconds of operation Check if transmitter and o
17. 4bit A2D number from the 60 1 Read internal processor bandgap device The bandgap device is used to measure the processor s internal A2D voltage rail DT 10x VDD a 32bit float number representing 61 62 H Read the 10 times transmitter s processor internal A2D 3 Float voltage rail DT Cfg type a 16bit field indicating transmitter s 63 1 Read configuration for items like MODBUS Baud Rate MODBUS Parity LCD blanking access and normal powered day period MODBUS Baud Rate bits 3 0 Enumeration Name Field Enumeration MODB9600 0 Default MODB19200 1 Not Supported MODB38400 2 Not Supported MODB115200 3 Not Supported MODBUS Parity mutually exclusive bit 5 4 Enumeration Name Field Enumeration MODNOPARITY 0 Not Supported MODODDPARITY 1 Not Supported MODEVENPARITY 2 Default LCD Blanking bit 6 Enumeration Name Field Enumeration DTLCDOFF 0 LCD will blank DTLCDON 1 Default Access Bit 7 Enumeration Name Field Enumeration DTACCOFF 0 Not Supported DTACCON 1 Default Normal Power Day Period Bit 8 Enumeration Name Field Enumeration DTNORMDAYOFF 0 Fast Day days advance every 14 40 minutes DTNORMDAYON 1 Default days advance every 1440 minutes 46 AMC 400 Series Digital Transmitter with Smart Sensor 47
18. AMC 400 Digital Transmitter consists of three main components e PVC Enclosure e Lid Assembly e Smart Sensor 2 Assembly The following three drawings are provided to briefly describe these components AMC 400 Series Digital Transmitter with Smart Sensor 3 2 FRONT LID OVERVIEW Displ lagiarmstrong me splay MONITORING RS 4 Smart Sensor 2 e aaa e status LED TRANGMITTFR SENSOR YZ _ Transmitter status Dn PY LED RO BEE E 8 Modbus Address iz b CAL BRA E SECULAHRDYSSOR SAFE Y www armnstrongm 800 465 5777 Sensor amp Vent Enclosure 7 Push button Figure 3 1 Front Lid View T Enclosure Digital Display Transmitter Status LED Smart Sensor 2 Status LED MODBUS Address Sensor amp Vent Pushbutton AMC 400 Series Digital Transmitter with Smart Sensor Enclosure and Lid Assembly PVC 4 x4 Wall mount with mount points Enclosure Lid attaches with four screws Displays gas concentration amp Status information 3 Digit User Interface for configuration Red Green LED Indicates status of Transmitter Red Green LED Indicates status of integral Smart Sensor This is a write on area matching the MODBUS node ID Address The indication here may be factory set and can be changed as needed This vent allows target gas to flow into the sensor The vent is also used for gas calibration Momentary On Off Pushbutton
19. Flow out of range state Consult AMC for Gas concentration is exceeding full span appropriate Smart Sensor range of sensor type and use It is not recommended to operate Smart Sensor outside specified operating limits Gas concentration is this mode may be at hazardous levels EOL Sensor has reached End Of Life Contact AMC for replacement Sensor operated beyond EOL may provide erroneous readings In near zero gas and after the stabilization period the transmitter will send accurate gas concentration MODBUS packets to the monitor or controller Although the electrochemical sensors are very selective there are some interference gases which can cause a response from the sensor In the case of a large response please check background gas potential or the possibility of an interference gas being present Caution When the gas concentration exceeds the full scale range the display will alternate between the reading value and the letters 0FL for overflow Refer to 2 1 2 SENSOR MODULE S SPECIFICATION for SPAN consult AMC for alternative Smart Sensor 2 types It is not recommended to operate Smart Sensor outside specified operating SPAN Gas concentration is this mode may be at hazardous levels The front panel view below shows the four areas of user interface Pushbutton Display TX Status and Sensor Status These user interfaces are briefly described below and referenced in more detail under the initial
20. MC 400 Digital Transmitter sensor transmitter is factory calibrated so each unit is to be ready for operation after installation and a 5 minute stabilization time The AMC 400 Digital Transmitter and Smart Sensors are equipped with Calibration and End of Life indicators When calibration or sensor End of Life has occurred the display will interleave CAL or Co respectively during normal gas concentration updates Subsequent calibration is required as a part of regular maintenance and when replacing the sensor See the Maintenance section of this manual for the recommended calibration schedule Note When the gas sensor needs calibration or has reached end of life the display will alternate between the reading value and the letters CAL or EOL Warning When performing calibration the results are not saved in Smart Sensor until successful Span procedure has been completed Powering off unit after Zero procedure and before completing a successful Span procedure will result in calibration information being lost Also failed Span procedure due to user abort or procedure limit checking leaves the unit with unstable calibration information It is important to complete a successful SPAN procedure for unit to function properly Caution Only qualified personnel should perform the actual calibration Users new to gas calibration are advised to consult with Armstrong Monitoring The Armstrong Monitoring Corporati
21. TER DT SETUP 2s 2s Do DT Setup du o A04 ENTER Do Zero ZERO gt 2s Calibration CALIBRATION 0C lt 2s A05 ENTER Do Span SPAN gt 2s Calibration CALIBRATION SC lt 2s A06 ENTER SPAN CALIBRATION lt 2s 32 gt 2 o Do Service Setup SE AMC 400 Series Digital Transmitter with Smart Sensor 8 APPENDIX DIGITAL TRANSMITTER CALIBRATION MENU FLOW SEL NEXT Goop gs Last Successful gas Concentration Digital Transmitter Zero or Span Calibration Menu NEXT PUSHBUTTON ACTIONS Gas On 60s 2 SECOND NEXT ENTER SEL Calibration gt 2 SECOND SEL SELECT Calibration MEE NEXT SEL DEFAULT ACTION NEXT 1 minute in any state defaults Exit Menu Min 25s Gas Off EXIT 33 AMC 400 Series Digital Transmitter with Smart Sensor 9 APPENDIX USER SUPPORTED MENU GUIDE Below is the configuration menu that describes the USER supported portion of the Digital Transmitter lt is Pushbutton input PB is pressed BBll is selected is LCD output is a Static Display while is Blinking Display User Interface Action Description Comment 2410 Digital Series 2seconds gt SOD Software Version Revision 2seconds Display Version O Rev D gt 19 Software Dot Revision 2seconds Display Dot 19 gt H1B Hardware Vers
22. c AMC 400 Series Digital Transmitter with Smart Sensor USER MANUAL IMPORTANT Please read the installation and operating instructions completely and carefully before starting Filename 3242405A doc Copyright March 4 2011 AMC The Armstrong Monitoring Corporation 215 Colonnade Road South Ottawa Ontario Canada K2E 7K3 Tel 613 225 9531 Fax 613 225 6965 Canada amp U S Toll Free 1 800 465 5777 E mail gas armstrongmonitoring com Internet www armstrongmonitoring com AMC 400 Series Digital Transmitter with Smart Sensor AMC 400 Series Digital Transmitter with Smart Sensor TABLE OF CONTENTS Section Title Page 1 GENERAL INFORMATION 3 eris cuo cora i oen uris eek corda orae onda vea vnde c Co eoe ao o paar z vac nennen 1 HA ET CN E AEN mE 1 DOES IIBER ER 1 kee PRODUC F RETURN no Ei ou i eade oii eodd 1 1 4 CONTACT INFORMATION iii insiste mito e Sco eaa us sted So Ua aeuo etta Pup ete ca lo sea inet 2 1 5 MODIFICATIONS AND SUBSTITUTIONS cc ceceeeeeceeeeeeeeeseeeeeeeeeeeeeeees 2 1 6 ORGANIZATION OF THE MANUAL reri root eoe ERE PEE Ee o ER een 2 Be e E OSE TECH 3 2 PRODUCT INFORMATION c5 coena iari ri ame ciui nou oa EEENEKE ENER AEN AEKEREEEEEAEEN 4 2 1 1 TRANSMITTER MODULE GPECIEICATION 4 2 1 2 SENSOR MOBULE SYSPEGIFIGNATIGB 2 tiit ee Deere enr certi 4 3 PRODUCT DESCRIPTION 2 225 0n nora ka e ku a roa c nana a auus eras peas u nap nena yXRa e nh re Ega
23. d be avoided The recommend cable should be a two wire twisted pair conductor plus shield cable and has a characteristic impedance of 1200hms 16 AMC 400 Series Digital Transmitter with Smart Sensor The total cable length for the entire network should not exceed 1000 M Please refer to MODBUS OVER SERIAL LINE SPECIFICATION AND IMPLEMENTATION GUIDE V1 0 27 44 This cable should be a two wire twisted pair conductor shielded cable The shield of the cable should be connected to chassis ground on CGND at the monitor and the AMC 400 Digital Transmitter MODBUS AC termination is required for last unit of bus please refer to REAR LID OVERVIEW MODBUS Termination item 14 for details 17 AMC 400 Series Digital Transmitter with Smart Sensor 5 OPERATION AND CALIBRATION This section describes how the functionalities of the AMC 400 Digital Transmitter are operated and performed Please consult the operation and initial configuration chapters below before attempting to operated the AMC 400 Digital Transmitter Warning It is possible to damage both the Smart Sensor 2 and Digital Transmitter assemblies if Smart Sensor 2 is plugged or unplugged under power This product does not support hot powering of the Smart Sensor 2 unit Please completely disconnect power from Digital Transmitter before replacing Smart Sensor 2 assembly 5 1 OPERATION 5 1 1 TRANSMITTER JUMPER The Digital Transmitter has two straps Smart Sensor 2 Terminat
24. ed procedure 2 Not Supported Tiodt Calibration Data2 a reserved 32bit float number 10 11 H Read for a monitor based procedure 2 Not Supported 3 Float Calibration Data3 a reserved 32bit float number 12 13 H Read for a monitor based procedure 2 Not Supported rioat Calibration Data4 a reserved 32bit float number 14 15 H Read for a monitor based procedure 2 Not Supported SES Output Trim Slope a reserved 32bit float number 16 17 I Read for calibrating output slope 2 Not Supported SIDA Output Trim Offset a reserved 32bit float number 18 19 H Read for calibrating output offset 2 Not Supported SE High Alarm a reserved 32bit float number for 20 21 H Read Transmitter high alarm set point 2 Not 3 Float Supported Low Alarm a reserved 32bit float number 22 23 H Read Transmitter low alarm set point 2 Not SE Supported Output Span a reserved 32bit float number for 24 25 1 Read Transmitter output span 2 Not Supported 3 Float Output Value a reserved 32bit float number for 26 27 AER 3 Floa Transmitter output value 2 Not Supported 41 AMC 400 Series Digital Transmitter with Smart Sensor Sensor Unit a 32bit float number for Smart Sensor 28 29 H Read 2 Gas Concentration Currently in PPM SES Sensor Output a 32bit float number for zero 30 31 1 Read based Smart Sensor 2 sensor signal voltage SES Location Label a 1 4 character byte string 32 35 1 Read embedded
25. eds its MODBUS address to be assigned If two transmitter units blink slow green but all other transmitter units indicate fast blinking red then the two slow blinking green transmitter units have the same MODBUS address If the monitor appears to be operating well with one or more transmitters but transmitter unit s have fast blinking red from time to time then MODBUS signal degradation is present Check that the both MODBUS signals wires and shield are properly connected 22 5 1 5 SENSOR STATUS LED AMC 400 Series Digital Transmitter with Smart Sensor The Sensor LED Status under normal operation has a slow blinking green indication Slow blinking green indicates good Smart Sensor communication detected and no sensor faults Numerous sensor faults can occur under various situations and is indicated with momentary fast blinking red indication Caution Sensor LED status will momentarily fast blink red under a minor sensor fault situation such as a packet error Consult AMC for service if minor sensor fault persists Below is the possible Sensor LED Status Sensor LED State Definition Action Slow Blinking Red Smart Sensor Wait for initialization to complete initializing Slow Blinking Green Smart Sensor is healthy No action required Fast Blinking Green Smart Sensor is healthy but no communication detected Check if Smart Sensor is properly connected to TX Slow Blinking Smart Sensor
26. eight and will be accepted only with RMA or repair number issued by AMC All products returned to the client will be shipped by freight collect AMC 400 Series Digital Transmitter with Smart Sensor 1 4 CONTACT INFORMATION For information please call 1 800 465 5777 or through contacts at www armstrongmonitoring com Or through email directly at support armstrongmonitoring com 1 5 MODIFICATIONS AND SUBSTITUTIONS Due to an ongoing development program AMC reserves the right to substitute components and change specifications at any time without incurring any obligations 1 6 ORGANIZATION OF THE MANUAL This manual provides the following major sections 1 PRODUCT DESCRIPTION This section illustrates the product features with a brief description 2 INSTALLATION This section illustrates the installation of the product describing the mounting wiring for power and communication 3 OPERATION AND CALIBRATION This section discusses in detail the operation and procedure for operating and calibrating this product 4 MAINTENANCE This section list the maintenance schedule and options associated with this product AMC 400 Series Digital Transmitter with Smart Sensor 1 7 GLOSSARY Alarm Alarm is an audible visual or physical presentation designed to warn the instrument user that a specific level of a dangerous gas vapor concentration has been reached or exceeded Calibration Calibration is the procedure used
27. he power from the AMC 400 Digital Transmitter to the power supply Shielded cable is optional for power supply wiring For best signal transmission and maximum noise rejection it is recommended to connect the cable shields to chassis ground at the monitor Below are example electrical wiring diagrams for an application where monitor supplies both power and communication 14 AMC 400 Series Digital Transmitter with Smart Sensor Warning Installing monitor communication without shield will produce unreliable system wide failure Armstrong Monitoring Corporation will not support this type of installation To Monitor AC2 ACi CGND RS485B RS485A X N N f Unit 1 Unit 2 RS 485 A A RS 485 A N E N Y C RS 485 B N j j RS 485 B amp S CGND CGND N N NON O SIGGND SIGGND A AC1 7 S AC I os E O AC2 d e AC2 Figure 4 2 Example of Electrical Wiring of Digital Transmitter s MONITOR N VES Y I AC modbus termination on last unit O om Unit 2 omi 7 PON mE i ped EJIIS l 4 8 Lef HAER MG D kill p Ui L rsss Bleo g 5
28. hrough to the 422 item with short presses To begin service mode choice enter the 422 item with a push and hold gt 2seconds and release The service mode title SE will be displayed Short press pushbutton to scroll to the 7 choice Push and hold gt 2seconds and release to enter service mode The Service Modes will enter a routine displaying the gas type and concentration With Service Mode 1 the qualified personnel can begin gassing without changing the gas concentration to monitor The monitor will continue to receive last known gas concentration To exit service modes wait for gas concentration to return to background levels then push and hold gt 2seconds and release Short press pushbutton to scroll through items to return to S exit point Push and hold gt 2seconds and release to return to 4ZZ item Again short press pushbutton to scroll through items to return to C exit point Push and hold gt 2seconds and release to return to normal operation Service Mode 2 A To enter Service Mode 2 enter Configuration from normal operation mode by push and holding pushbutton for gt 2seconds and then releasing The configuration title CF will be displayed Scroll through to the 406 item with short presses To begin service mode choice enter the 422 item with a push and hold gt 2seconds and release The service mode title S will be displayed Short press pushbutton to scroll to the
29. ion Revision 2seconds Display Version 1 Rev B gt Hardware Dot Revision 2seconds Display gt co or no2 gt PUP 20 00 Scrolling Gas Concentration Display Displays Sensor Unit if gt 1 unit present Sensor gas Sensor Gas Concentration Running Display BER Coorn02 PUP Exit Scrolling Gas S Configuration 20 00 Concentration Display Menus PB CF Configuration Title Scroll to Choices BER gt A0i Front Bus Setup Choice S Front Bus Configuration PB gt Fb Front Bus Title Scroll to Choices BER gt F01 MODBUS Address Choice SES MODBUS Address Configuration BER gt 063 Default or Last MODBUS S to edit 1 Address position address RER 3 Se 2 position PB 6 Change 2 position PB 073 Change 2 position 34 AMC 400 Series Digital Transmitter with Smart Sensor Change 2 position PB 093 Change 2 position PB 003 Change 2 position BER gt 003 BEIBBI 3 position BER gt 0 BEBE finish display PB 003 Enter MODBUS Address PB F01 MODBUS Address Setup Scroll to Choice Choice BER gt Fb Front Bus Title Bii Front Bus Menu PB gt A01 Scroll to next Choice BER gt A02 Back Bus Setup Choice SES Back Bus Configuration PB bb Back Bus Title Scroll to Choices BER gt b01 SMBUS Address Choice S SMBUS Address Configuration BER gt 001 Defa
30. ion and MODBUS Termination Please refer to REAR LID OVERVIEW for details 5 1 2 TRANSMITTER AND SMART SENSOR 2 The AMC 400 Digital Transmitter sensor transmitter is factory calibrated for the gas listed in the Product Information Section 2 at the beginning of this manual The sensor transmitter should not require re calibration when first installed and powered up but a test for correct sequence of operation is recommended after a stabilization period of five minutes Activity on the LED s indicates that the board is powered on At power up the display runs through the following sequence 1 Indicates the software Hardware versions and performs a self test 2 Display sensor stabilization status 3 Displays the gas type 4 Displays the detected level Note The transmitter will experience a reboot and repeat the above sequence if no MODBUS traffic is detected for a period of five minutes Additionally a failed transmitter will reboot after one to two minutes Additionally the AMC 400 Digital Transmitter can insert other sensor status between gas type and gas concentration This following sensor status is available 18 AMC 400 Series Digital Transmitter with Smart Sensor Sensor Status Definition Action pup Sensor in stabilization Power Up Period Wait up to 5 minutes for sensor to stabilize CAL Sensor needs CALibration Consult CALIBRATION and MAINTENANCE sections in this manual OFL Sensor in Over
31. ital Transmitter Configuration AU Zero Calibration A7 5 Span Calibration AOL Service Modes 3 At this point the user can immediately exit configuration by push and holding the pushbutton for 22 seconds and releasing Alternatively the user can scroll through the above 6 choices by short pressing the pushbutton 2seconds The list is circular in nature Note Configuration titles with a negative sign are exit points Just press and hold the 24 AMC 400 Series Digital Transmitter with Smart Sensor pushbutton for gt 2seconds and release to get to the previous level Scrolling with quick button presses will normally cycle you to an exit point without change 4 To enter MODBUS Configuration the user must press and hold the pushbutton for gt 2 seconds and release at the item A01 The MODBUS title 7Z will be displayed 5 To configure the MODBUS address short press to the item F27 and press and hold for gt 2seconds and release to enter sub item At this point the current MODBUS address will be displayed a short press returns you back to FZ which can lead you to an exit point 6 To modify the MODBUS address press and hold for gt 2seconds and release to edit the first digit of the address The least significant digit can now be changed scroll quickly with short presses and cycle through the number choices from the current number to 9 and then back to 0 Press and hold gt 2seconds and
32. led Smart Sensor will reboot after one to two minutes 23 AMC 400 Series Digital Transmitter with Smart Sensor 5 2 INITIAL CONFIGURATION Initial installation requires a unique MODBUS address to be configured The current MODBUS address may be pre configure and labeled on the front panel in small box see front panel view item 5 User can change the MODBUS address by entering configuration MODBUS addresses must be in the range of 1 247 Please refer to Appendix for menu flow diagrams and guide Caution An invalid MODBUS address may cause other devices to malfunction It is important to carefully map out MODBUS addresses Note AMC 400 Digital Transmitter will automatically exit current level of configuration after 1 minute of inactivity without change This can be useful when user is lost or unsure of current modification The AMC 400 Digital Transmitter configuration is divided into 6 areas MODBUS Configuration Smart Sensor Configuration Digital Transmitter Configuration Zero Calibration Span Calibration Service Modes 1 To enter configuration press and hold the pushbutton for 2 seconds or more until the display shows SEL When the pushbutton is released the Configuration Menu title CF will be displayed 2 The possible items in configuration are CF Configuration Title and Exit Point 471 MODBUS Configuration AOZ Smart Sensor Configuration AOF Dig
33. libration feature allowing for one man calibration at the transmitter location In most cases it is only Zero and Span adjustments that are made in field calibrations All Calibration procedures will automatically exit to normal operation without change if left inactive for several minutes Please refer to Appendix for menu flow diagrams and guide Note During calibration new gas concentration is not updated to monitor and last gas concentration value will be reported Refer to Figure 5 1 Front Panel User Interface to perform the following calibration procedure 1 Cover the sides of sensor with a clean cloth or similar to prevent a draft on the sensor The zero calibration can also be used with a gas concentration for a 2 point calibration procedure as example 5ppm CO gas could use instead of Oppm Perform gassing with a calibration adapter that is firmly inserted into front panel of AMC 400 Digital Transmitter please refer to 2 1 2 SENSOR MODULE S SPECIFICATION for adapter P N and gas flow rate 27 2 3 4 5 6 7 8 AMC 400 Series Digital Transmitter with Smart Sensor Enter Configuration from normal operation mode by push and holding pushbutton for gt 2seconds and then releasing The configuration title CF will be displayed Scroll through to the 4747 item with short presses To begin zero calibration enter the 477 item with a push and hold gt 2seconds and release The zero calibration
34. n male plug connector contains both power and communication network connection points The power is normally 24VDC and the communication network is MODBUS over RS 485 This GND Test Point is to be used by service technicians only with appropriate instrumentation such as a voltmeter It is the signal reference point for the digital transmitter control logic This VDD Test Point is to be used by service technicians only It is the digital transmitter control logic supply voltage and must be 5 5 Volts DC This V Test Point is to be used by service technicians only It is the digital transmitter rectified unregulated power input and must be 8 35 Volts DC This 7 pin connector mates with the Smart Sensor 2 Assembly male connector This connector carries the power and communication for Smart Sensor 2 Default position AC Termination Pins 1 2 This termination allows AC or DC Termination for the Smart Sensor II RS 485 signaling Default position No Termination Pin 2 This termination allows AC or DC Termination for the MODBUS RS 485 signaling Use AC Termination Pin 1 2 when transmitter is an end point on bus This mounting hole contains two standoffs to support the Smart Sensor Il Assembly One standoff is a stud the other is nylon press fit 10 AMC 400 Series Digital Transmitter with Smart Sensor 3 4 SMART SENSOR 2 OVERVIEW Smart Sensor 2 Board 69 SS2 male connector SIG CTR VREF test point
35. n san e aua rues 6 cma OVERVIEW rmm c quctasd erets 6 3 2 BRHONT EIDIOVERVIEWS aU testet eL Ld LL uA Lc GU 7 9 9 REAR BID OVERVIEW aeiee nea aa dose a a a a a aa 9 3 4 SMART SENSOR 2 OVERVIEW ode e cede e Reed rer Deed edet 11 4 INSTALLATION 13 4 1 EOGATION AND MOUNTING EEN 13 4 1 1 CONDUIT MOUNTING EE 14 Bee Ee EE 14 4 2 1 1 POWER SUPPLY cnt i eo UE HI Bau ee 16 42l COMMUNICATION 4 tt Eo oet ett eue 16 5 OPERATION AND CALIBRATION c eeeeeeee eene nennen nnn nn nana nnne nrnna 18 5il SOP EAMG WEE 18 5 1 1 TRANSMITTER JUMPER atike cate chit eder EE 18 51 2 TRANSMITTER AND SMART SENSOR eet 18 5 1 3 TRANSMITTER STATUS LED HE 21 5 1 4 TROUBLESHOOTING MODBUS USING THE TRANSMITTER STATUS LED 22 5 h5 SENSOR SIA Wor LED EE 23 5 2 INPFEDAE ee ee En H e DEE 24 Bes OALIBRATIGODNL tdi EID Ree cased enue iu on oe tam adios erus contends cose 26 5 3 1 REQUIRED EQUIPMENT EXCHANGE PROGRAM 27 5 3 2 REQUIRED EQUIPMENT ON SITECALUIDRATION een 27 5 3 3 CALIBRATION PROCEDURE 3 2 ges it rx eh wee cp roe cl aine ger es 27 5 3 4 GAS TEST AND SERVICE MODES o iter eet t ER hee b mee ei 29 6 MAINTENANCE covert DLE 31 Gal GENERAL uino ii Rr REP C A ODE E e e 31 6 2 SCHEDULED CALIBRATION RE 31 6 3 SENSOR TRANSMITTER RERBLACEMENT 31 7 APPENDIX DIGITAL TRANSMITTER CONFIGURATION MENU FLOW 32 8 APPENDIX DIGITAL TRANSMITTER CALIBRATION MENU FLOW
36. ode Setup BER 100 Default or Last Forced Gas BBIBBE to edit 1 Concentration position address BER gt o S 2 position BER gt o Se 3 position RER gt 1 BEIBBE finish display gt co or no2 gt 100 Scrolling Gas Concentration Display Displays Sensor Unit if gt 1 unit present Sensor gas Sensor Gas Concentration Running Display Unit will force gas concentration to monitor without gassing 38 AMC 400 Series Digital Transmitter with Smart Sensor PB or B or Exit Service Mode2 Exit Service Mode 10minutes PB gt SE2 Service Mode2 Choice Scroll to next Choice BER cr Configuration Title B to Configuration Menu gt co or no2 PUP gt 0 00 Scrolling Gas Concentration Running Display Display 10APPENDIX MODBUS REGISTER MAP A developer of a monitor can use the below MODBUS register map to query gas type and gas concentration from an AMC 400 series digital transmitter A minimalistic monitor need only poll a couple of MODBUS registers to achieve the gas concentration e Setup polling MODBUS address with MODBUS protocol at 9600Baud Even Parity on EIA TIA 485 link Please see the FRONT LID OVERVIEW for MODBUS address The MODBUS address can be configured from the transmitter with the user interface Please see INITIAL CONFIGURATION for details e Poll Transmitter Status Register 2 o A hex value not equal to 00x
37. on offers the following calibration plans Factory pre calibrated exchange replacement smart sensor units On site installation by Armstrong Monitoring On site calibration by Armstrong Monitoring po IS Training by Armstrong Monitoring for end users For additional details please refer to CONTACT INFORMATION 26 AMC 400 Series Digital Transmitter with Smart Sensor 5 3 1 REQUIRED EQUIPMENT EXCHANGE PROGRAM For qualified personnel the following is a recommended list of equipment required e 5 16 Nut driver and Philips and Roberson screw driver set e TOOL SCREWDRVR SLOT ESD 1 5MM Wiha 27215 To replace Smart Sensor 2 with pre calibrated unit first completely remove power from Digital Transmitter by unplugging Power and Communication Connector as shown in Use a Nut driver to remove nut that is holding Smart Sensor 2 assembly to Digital Transmitter Carefully remove and replace Smart Sensor 2 assembly attached to SS2 Female Connector Replace nut holding Smart Sensor to Digital Transmitter with Nut driver Warning It is possible to improperly insert SS2 Male Pins into SS2 Female connector 5 3 2 REQUIRED EQUIPMENT ON SITE CALIBRATION For qualified personnel the following is a recommended list of calibration equipment required e TOOL SCREWDRVR SLOT ESD 1 5MM Wiha 27215 e Calibration kit please refer to SENSOR MODULE S SPECIFICATION 5 3 3 CALIBRATION PROCEDURE The AMC 400 Digital Transmitter is equipped with a ca
38. plications As mentioned Armstrong Monitoring Corporation offers a number of different maintenance plans to suit your requirements Please see CONTACT INFORMATION section 6 3 SENSOR TRANSMITTER REPLACEMENT When its sensor signal is greatly reduced or unstable the sensor transmitter replacement is required see section 2 1 2 for replacement sensor P N Please note that the sensor itself is not replaceable The Smart Sensor 2 and sensor are replaced as one assembly please refer to 5 3 1 REQUIRED EQUIPMENT EXCHANGE PROGRAM for instructions Note 5 minutes is required for a new sensor to stabilize before calibration Warning It is possible to damage both the Smart Sensor 2 and Digital Transmitter assemblies if Smart Sensor 2 is plugged or unplugged under power This product does not support hot powering of the Smart Sensor 2 unit Please completely disconnect power from Digital Transmitter before replacing Smart Sensor 2 assembly 31 AMC 400 Series Digital Transmitter with Smart Sensor 7 APPENDIX DIGITAL TRANSMITTER CONFIGURATION MENU FLOW Digital Transmitter Configuration PUSHBUTTON ACTIONS 2 SECOND INCREMENT OR NEXT CHOICE 2 2 SECOND ENTER OR SELECT DEFAULT ACTION 1 minute in any state defaults Exit Menu On CS 2s 2s EXIT A01 ENTER MODBUS SETUP Do Modbus Setup Fb A02 ENTER SMBUS SETUP Do Smbus Setup bb A03 EN
39. provides verification of full path operation from sensor to monitor to interlock Gas testing under normal mode requires the re application of span gas concentration as performed in gassing phase of calibration Please refer to Appendix for menu flow diagrams and guide Note When the gas testing with low concentration gasses the AMC 400 digital transmitter may display gas concentration of 0 Consult 2 1 2 SENSOR MODULE S SPECIFICATION for Zero buffer gas concentration value The AMC 400 Digital Transmitter is equipped with two service modes 1 Service Mode 1 Gas testing without reporting gas concentration to monitor This mode allows sensor sensitivity to be tested locally without alarming the rest of the building or building automation system The gas concentration reported to monitor during this mode will be the last known level 2 Service Mode 2 Forces gas concentration to monitor without actual gas testing This mode allows the monitor alarms or building automation system to be tested without using gas 29 Note AMC 400 Series Digital Transmitter with Smart Sensor All service mode procedures will automatically exit to normal operation without change if left inactive for 10 minutes Service Mode 1 A To enter Service Mode 1 enter Configuration from normal operation mode by push and holding pushbutton for gt 2seconds and then releasing The configuration title CF will be displayed Scroll t
40. pt or reject this calibration by a push and hold gt 2seconds or short press respectively If the accept is given the AMC 400 Digital Transmitter will check the limits of the result and accept or reject it by displaying Acc or bAd respectively If result has been rejected the LCD will indicate bAa The zero calibration title 7C will be re displayed for retry or exit Push and hold and release to exit Scroll through to the 477 item with short presses To begin span calibration enter the 475 item with a push and hold gt 2seconds and release The span calibration title SC will be displayed At this point short press pushbutton to display the Span Gas Concentration If the span gas concentration is to be modified then push and hold for gt 2seconds and release The gas concentration can be modified one digit at a time similar to MODBUS address modification in INITIAL CONFIGURATION Once all digits have been modified another short press will advance procedure to the gassing phase AMC 400 Digital transmitter may ignore modification if the gas concentration entered is not acceptable 28 AMC 400 Series Digital Transmitter with Smart Sensor 9 At the beginning of span calibration the AMC 400 Digital Transmitter will display eat 0n Begin gassing at this point to perform a T99 type calibration The qualified personnel can begin gassing after this point to perform a T90 type calibration by advancing the proced
41. r other system components have valid operating limits i e connections power supply temperature and MODBUS addressing Consult AMC for service if status persists Solid or long period Red Green or Orange Transmitter has experienced a severe fault Wait one to two minutes for unit to enter normal mode Consult AMC for service if status persists LED Extinguished Transmitter is powered off Check transmitter wiring or power supply state Consult AMC for service if status persists 5 1 4 TROUBLESHOOTING MODBUS USING THE TRANSMITTER STATUS LED The Transmitter Status LED indirectly provides a MODBUS monitor function Using this LED in conjunction with other transmitters can help in diagnostic of MODBUS faults Here is a list of troubleshooting guidelines of the Transmitter Status LED A B If all transmitters blink fast green and the monitor is in operation mode then the MODBUS wiring is likely disconnected at the monitor If one or more transmitter s in a chain are blinking fast green and a unit closer to the monitor is blinking slow green then a MODBUS disconnection point begins after the slow blinking green unit If a transmitter is blinking fast red and other transmitter units are blinking slow green then check that the MODBUS connections are not reversed on the flashing red unit If a transmitter blinks slow green but the monitor indicates na for that unit then the transmitter unit ne
42. ration Name Field Enumeration SS2_NO_FAULT 0x0000 SS2_CONV_OVRF_FAULT 0x0001 SS2_SPAN_GAS_FAULT 0x0002 SS2_RAW_A2D_CAL_FAULT 0x0004 SS2_SENSOR_UNSTABLE_FAULT 0x0008 SS2_ZERO_CAL_FAULT 0x0010 SS2_USER_CAL_ABORT 0x0020 Reg Fault Register Map Subsystem a 16bit wide 48 1 Read fault field of transmitter s Register Map subsystem Enumeration Name Field Enumeration REG NO FAULT 0x0000 Peak_MODBUS_Flag a 16bit number representing 49 1 Read the measured peak MODBUS traffic in characters per seconds Peak SMBUS Flag a 16bit number representing 50 1 Read the measured peak SMBUS traffic in characters per seconds Systicks a 32bit number representing the number 51 52 1 Read 10msec system ticks that has elapsed on the current powered up day Days a 16bit number of the days powered up 53 1 Read DT Vin A2D a 14bit A2D number from 0x0 54 1 Read Ox3FFF representing the DC input voltage of 0 55volts DT 10x Vin a 32bit float number representing 55 56 1 Read the 10 times DC input voltage 3 Float DT Temperatue A2D a 14bit A2D number of the 57 1 Read internal processor thermometer peripheral DT 10x Temperature a 32bit float number 58 59 1 Read representing the 10 times transmitter s SS Float temperature in Celsius 45 AMC 400 Series Digital Transmitter with Smart Sensor DT BandGap A2D a 1
43. s warranty unless covered under site contract AMC is not liable for auxiliary interfaced equipment nor for consequential damage This warranty shall not apply to any product which has been modified in any way which has been repaired by any other party other than a qualified technician or authorized AMC representative or when failure is due to misuse or conditions of use Note extended warranty mail in calibration programs is available please call 1 800 465 5777 or through contacts at www armstrongmonitoring com 1 2 LIABILITY All AMC products must be installed and maintained according to instructions Only qualified personnel should install and maintain the equipment AMC shall have no liability arising from auxiliary interfaced equipment for consequential damage or the installation and operation of this equipment AMC shall have no liability for labor or freight costs or any other costs or charges in excess of the amount of the invoice for the products THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AND SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE THEREOF WARNING CHECK TO ASSURE THE WORKING AREA IS FREE FROM HAZARDS DURING INSTALLATION OR WHEN PERFORMING MAINTENANCE AND USE PROPER PRECAUTIONS 1 3 PRODUCT RETURN All products returned for warranty or service should be shipped by prepaid fr
44. s will ensure correct orientation Warning It is possible to damage both the Smart Sensor 2 and Digital Transmitter assemblies if Smart Sensor 2 is plugged or unplugged under power This product does not support hot powering of the Smart Sensor 2 unit Please completely disconnect power from Digital Transmitter before replacing Smart Sensor 2 assembly Installing conduit from top of box will allow moisture from condensation to drip down into circuit assembly Damage caused by this type of installation will void warranty Caution Conduit entry is from the bottom of enclosure to avoid damage to electronic components from condensation build up in the conduit 13 AMC 400 Series Digital Transmitter with Smart Sensor 4 1 1 CONDUIT MOUNTING 4 600 Mounting screws 4 places 0 200 4Plcs agarmstrong eine 2 470 Lil Lii 2 100 Wi O e 9 SCH Mounting holes Wiring Conduit Wiring Figure 4 1 Conduit Mounting 23 Mounting Holes Wall mounts with 4 holes 4 2 WIRING The AMC 400 Digital Transmitter employs a four wire system which has two main wiring systems the monitor communication two wires and power supply wiring two wires A two conductor shielded cable is used to connect the RS 485 signals from the AMC 400 Digital Transmitter to the monitor A two conductor shielded cable is recommended to connect t
45. should be connected to chassis ground on CGND at the monitor power supply and the AMC 400 Digital Transmitter Caution Care must be taken when installing to ensure that all Digital Transmitters are connected with the same power supply polarity across the network Digital Transmitter AC2 should be connected to power terminal and Digital Transmitter AC2 should be connected to power terminal Using SIG GND for powering should be avoided The recommend power cable should be a two wire conductor plus shield cable with 18 AWG The cable length must not exceed a distance that prevents the Digital Transmitter from obtaining a minimum voltage of 8 Volts DC at V Test Point 4 2 1 2 COMMUNICATION The AMC 400 Digital Transmitter assembly is to be controlled by the AMC 1DAX monitor or other MODBUS masters The AMC 1DAC has the possibility of managing 80 nodes on the network All nodes are connected to same two communication signals RS485A and RS485B The AMC 400 Digital Transmitter communicates through a cable connection on RS485A and RS485B as shown in the REAR LID OVERVIEW item 8 Power and Communication Connector Caution Care must be taken when installing to ensure that all Digital Transmitters are connected with the same MODBUS polarity across the network Digital Transmitter RS485A should be connected to network terminal and Digital Transmitter RS485B should be connected to network terminal Using SIG GND for powering shoul
46. t 750 Change 3rd position PB gt 850 Change 3rd position PB gt 950 Change 3rd position PB 050 Change 3rd position BER gt 050 Se finish display PB gt 050 Enter Gasing gt GAS gt ON Gas On Instruction Maximum 60seconds PB or BEI to continue gt _uP Increasing Concentration PB or BED to end 37 AMC 400 Series Digital Transmitter with Smart Sensor gt dn_ Decreasing Concentration PB or BEB to end gt 2 00 Stable Concentration Monitors for 10 signal voltage consecutive stable samples Minimum 25seconds PB or BEB to end gt GAS gt OFF Gas Off Instruction BED to Accept PB or idle Maximum 60 seconds to discard bad gt Acc or bad Confirmation 1second BER gt sc SPAN Calibration Title Bi to Span Gas Menu PB gt A05 SPAN Calibration Choice Scroll to next Choice BER A06 SERVICE Setup Choice S SERVICE Option PB SE SERVICE Title Scroll to Choices BER gt SE1 Service Mode1 Choice S Service Mode Setup gt co or no2 Scrolling Gas Concentration Running Display Unit gt 000 Display can be bump tested Displays Sensor Unit if gt 1 unit present Sensor gas Sensor Gas Concentration without gas concentration reflected to monitor PB or B B or Exit Service Model Exit Service Mode 10minutes lt PB gt SE1 Service Mode1 Choice Scroll to next Choice BER sE2 Service Mode2 Choice S Service M
47. tat sensor output used Under normal operation zero gas situation it tracks the 1 8 Volts DC VREF When CO gas is applied this SIG Test Point increases toward 3 6 Volts DC When NO2 gas is applied this SIG Test Point decreases towards 0 Volts DC 12 AMC 400 Series Digital Transmitter with Smart Sensor 4 INSTALLATION The installation of the AMC 400 Digital Transmitter is very important as the operational quality is a direct result of the quality of the installation The following sections provide guidelines for installation location and mounting wiring and cable selection 4 1 LOCATION AND MOUNTING Mount the AMC 400 Digital Transmitter sensor transmitter on a solid non vibrating surface or structure in an area where the ambient concentration of gas is not directly affected by the presence of clean air supply ventilation systems or blockage by surrounding articles and sources of interference gases Please refer to local codes for sensor transmitter installation information The installer is required to provide any mounting hardware that may be required The AMC 400 Digital Transmitter sensor transmitter circuit board s with sensor is removable from the enclosure for ease of installation The recommended mounting height is specified in the SENSOR MODULE S SPECIFICATION The conduit entry is from bottom of box to avoid moisture flow into box through conduit Notes Mount enclosure with the sensor located as shown is Figure 4 1 Thi
48. tatus Bits 15 8 Transmitter Okay 0x00 Transmitter Error OxFF Instrument Mode Bits 7 0 Default Ox9F Reserved Self Test Bit7 O No Self Test 1 Self Test Reserved Calibration Type Bit6 0 Single Point 1 Dual Point Reserved Output Enable Bit5 0 Off 1 On Reserved Output Type Bit4 Not defined Reserved Baud Rate Bit3 Oz Not Defined 12 9600 Reserved bit Bit2 Not Defined Reserved bit Bit1 Not Defined Reserved bit BitO Not Defined 40 AMC 400 Series Digital Transmitter with Smart Sensor Gas Number Node Address a 16bit number 3 1 Read made up of two 8 bit fields of Smart Sensor 2 gas number and Transmitter MODBUS address Gas number is updated from Smart Sensor 2 upon registration Gas Number 15 8 CO 0 NO2 1 MODBUS Address 7 0 1 247 Slope a reserved 32bit float number representing 4 5 1 Read the slope of the Smart Sensor 2 gas updated from SSES Smart Sensor 2 at registration Slope is reserved for a monitor based calibration procedure 2 Not Supported Offset a reserved 32bit float number representing 6 7 1 Read the offset of the Smart Sensor 2 gas updated from 3 Float Smart Sensor 2 at registration Offset is reserved for a monitor based calibration procedure 2 Not Supported Calibration Data1 a reserved 32bit float number 8 9 H Read for a monitor bas
49. the gas concentration and gas type in configuration the display is used to indicate configuration titles and items By default the Gas concentration is displayed in PPM and may or may not have a decimal point The Gas type is displayed in alphanumerical characters as an example co indicates Carbon Monoxide and noZ indicates Nitrogen Dioxide The TX Status is a green and red LED to indicate activity of the MODBUS link and transmitter health and state As an example a slow blinking green TX status indicates 20 AMC 400 Series Digital Transmitter with Smart Sensor healthy MODBUS activity detected while a period of fast blinking red TX status can indicate a momentary MODBUS fault Please refer to TRANSMITTER STATUS LED for further details The Sensor Status is a green and red LED to indicate activity of the Smart Sensor link and Smart Sensor health and state As an example a slow blinking green Sensor status indicate healthy activity detected while a period of fast blinking red Sensor status can indicate a momentary sensor bus fault Please refer to SENSOR STATUS LED for further details Note AMC 400 Digital Transmitter LED will appear to blink slow green even though it is not being accessed by a monitor This is the case when MODBUS address is not properly configured Use 5 3 4 GAS TEST AND SERVICE MODES to verify proper configuration this will allow gas concentration to be observed at the monitor or controller 5
50. to adjust the instrument for proper response Calibration Gas Calibration Gas is a gas of known concentration s used to set the instrument span or alarm level s DT Digital Transmitter Gas Concentration Gas Concentration is measured e PPM PPM Parts Per Million 1 volume 10 000PPM Percent by volume Concentration of gas in a mixture expressed as a percentage of total volume RS 485 Superseded with EIA 485 or TIA 485 Span Full range of a sensor i e a CO sensor with a full scale of 0 100 PPM has a 100 PPM span SS2 Smart Sensor 2 T90 Response Time in seconds to achieve 90 gas concentration reading This a typical calibration point that allows for sensor aging but tends to be less accurate than a T99 calibration T99 Response Time in seconds to achieve 99 gas concentration reading This is a more accurate calibration point Zero Buffering Zero buffering is transmitter function which forces the gas concentration reading to zero when sensor is exposed to low concentration of a gas The zero buffers is provided in the sensor specification Zero Gas Zero gas is gas with no concentration Clean air is an excellent source for zero calibration A known gas concentration can be entered during zero calibration AMC 400 Series Digital Transmitter with Smart Sensor 2 PRODUCT INFORMATION The AMC 400 Series Digital Transmitter with Smart
51. ult or Last SMBUS S to edit 1 Address position address BER gt 1 BEIBBI 2 position BER gt o S 5 position RER gt o BEIBBE finish display PB gt 001 Enter SMBUS Address PB b01 SMBUS Address Choice Scroll to Next Choice BER gt bb Back Bus Title EN Back Bus Menu PB gt A02 Back Bus Setup Choice Scroll to next Choice BER A03 DT Setup Choice Seet DT Configuration PB du DT Title Scroll to Choices PB d01 LCD Off Mode Choice Scroll to next Choice PB gt d02 LCD On Mode Choice Scroll to next Choice BER gt d03 Location Label Choice S Location Label Configuration BER gt LO1 Default or Last Label S to Change Label 35 AMC 400 Series Digital Transmitter with Smart Sensor PB 1 Modify 1 position PB gt LO2 Modify 1 position BER gt Lo2 Se 2 position BER 0 BEIBBI 3 position lt m gt L S to finish display BER LO2 New Location Label Scroll Label Change PB d03 Location Label Choice Scroll to Next Choice BER gt du DT Title ERE Digital Transmitter Menu PB gt A03 DT Setup Choice Scroll to next Choice BER gt A04 ZERO Calibration Choice Ss ZERO Calibration PB OC ZERO Calibration Title Scroll to Enter Gas Concentration BER gt 00 0 Default or Last Gas S to edit 1 Concentration position Gas RER o Se 2 position PB O0 Change 2 position RER gt 01 0 BEIBBE 3 position
52. ure to measurement phase with a press of the pushbutton 10 During span gassing measurement the display will indicate either Znc or dEc depending of signal level from sensor increasing or decreasing respectively Also the LCD will display the sensor voltage when the gas concentration is not changing The measurement phase contains a minimum and maximum gassing period and will automatically complete after gas measurement is stable The qualified personnel can proceed to calibration complete by pressing the pushbutton 11 During span calibration complete the AMC 400 Digital Transmitter will display GaS OFF At this point the qualified personnel must accept or reject this calibration by a push and hold gt 2seconds or short press respectively If the accept is given the AMC 400 Digital Transmitter will check the limits of the result and accept or reject it by displaying Acc or bAd respectively If result has been rejected the LCD will indicate bAa 12 At this point the span calibration title SC will be re displayed for retry or exit Push and hold gt 2seconds and release to exit Scroll through to the CF exit point with short presses Push and hold gt 2seconds and release to exit configuration back into normal operation 5 3 4 GAS TEST AND SERVICE MODES The AMC 400 Digital Transmitter should be bump tested after calibration to ensure proper sequence of operation Gas testing under normal operation
53. x indicate not available or not ready o A value of 0x008F indicates transmitter is okay at 9600baud with no analog output e Read Gas Number Node Address Register 3 o A hex Gas Number of 00xx or 01xx represents CO or NO respectively e Read Sensor Unit 32 bit Registers r28 r29 o Swap 16bit values to create 32bit IEEE754 float value in PPM Notes 1 Read These registers can be read or written write operation is not currently supported and will produce unpredictable results 2 Not Supported The transmitter will provide default or unspecified value 3 Float These registers are a IEEE754 decimal 32 format floating point representation when low and high 16bit registers are swapped l e IEEE 754 Sensor Unit float r29 31 16 and r28 15 0 39 AMC 400 Series Digital Transmitter with Smart Sensor Data Register MODBUS Monitor Register Access Index Serial Number a 16bit number between 1 65535 0 1 Read exclusive to a specific AMC 400 model Hardware Rev Software Rev a 16bit number 1 1 Read made up of four bit fields 5 bit hardware version 15 11 1 32 versions 3 bit hardware revision 10 8 A H revisions 5 bit software version 7 3 1 32 versions 3 bit software revision 2 0 A H revisions These fields are displayed on the LCD during power up Transmitter Status Mode a 16bit number made 2 1 Read up of two 8 bit fields representing transmitter status and modes Instrument S
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