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The Armstrong Monitoring Corporation AMC-400 Series User Manual

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IMPORTANT:
Please read the installation and operating instructions completely and
carefully before starting.
Filename: 3476405D.doc
215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 225-9531 • Fax: (613) 225-6965 • Canada & U.S. Toll Free: 1-800-465-5777
E-mail : gas@armstrongmonitoring.com • Internet :
AMC-400
Series
Digital Transmitter
with Smart Sensor 2
USER MANUAL
The Armstrong Monitoring Corporation
Revised June 12,2017
Copyright ©,Aug 31 2016, AMC
www.armstrongmonitoring.com

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  • Page 1 Revised June 12,2017 Filename: 3476405D.doc Copyright ©,Aug 31 2016, AMC The Armstrong Monitoring Corporation 215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 225-9531 • Fax: (613) 225-6965 • Canada & U.S. Toll Free: 1-800-465-5777 E-mail : gas@armstrongmonitoring.com • Internet :...
  • Page 2 AMC-400 Series Digital Transmitter with Smart Sensor 2...

  • Page 3: Table Of Contents

    AMC-400 Series Digital Transmitter with Smart Sensor 2 TABLE OF CONTENTS Section Title Page GENERAL INFORMATION ..................1       WARRANTY ....................... 1   LIABILITY ......................1     PRODUCT RETURN ..................1       CONTACT INFORMATION ................1  ...
  • Page 4 AMC-400 Series Digital Transmitter with Smart Sensor 2   GENERAL ......................39   SCHEDULED CALIBRATION ................39     SMART SENSOR 2 MODULE REPLACEMENT ..........39     VERIFICATION OF OPERATION ..............39       APPENDIX: DIGITAL TRANSMITTER CONFIGURATION MENU FLOW .... 40  ...

  • Page 5: General Information

    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 this warranty unless covered under site contract.

  • Page 6: Modifications And Substitutions

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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.

  • Page 7: Glossary

    AMC-400 Series Digital Transmitter with Smart Sensor 2 1.6 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 to adjust the instrument for proper response.
  • Page 8 AMC-400 Series Digital Transmitter with Smart Sensor 2 AMC-400 Digital Transmitter This refers to a complete AMC-400 unit including the Smart Sensor 2 module Smart Sensor 2 Module (SS2) This refers to a Smart Sensor 2 Card with one of...

  • Page 9: Product Information

    AMC-400 Series Digital Transmitter with Smart Sensor 2 2 PRODUCT INFORMATION The AMC-400 Series Digital Transmitter with Smart Sensor 2 consists of 2 circuit card assemblies which are the Transmitter card and the Smart Sensor 2 card. Both cards have Microcontroller (MCUs) to manage and communicate the information in a digital format.

  • Page 10: Smart Sensor 2 Module(S) Specification

    AMC-400 Series Digital Transmitter with Smart Sensor 2 2.1.2 SMART SENSOR 2 MODULE(S) SPECIFICATION Gas Type………………………………….….….. CARBON MONOXIDE (CO) Smart Sensor 2 Module Order Number….…… AMC-91JGF Operating Temperature ……………………… -20° to 40° C Sensor Height Above Finished Floor (as part 4-6 Feet (1.22-1.52m)
  • Page 11 AMC-400 Series Digital Transmitter with Smart Sensor 2 Gas Type………………………………….….….. NITROGEN DIOXIDE (NO Smart Sensor 2 Module Order Number……… AMC-98JCC Operating Temperature ………………………. -20° to 40° C Sensor Height Above Finished Floor(as part of 4-6 Feet (1.22-1.52m) AMC-400 Digital Transmitter) Sensor Life…….…………………………………...
  • Page 12 AMC-400 Series Digital Transmitter with Smart Sensor 2 Gas Type………………………………….….….. Propane(C3H8) Smart Sensor 2 Module Order Number……… AMC-61JAF Operating Temperature ………………………. -20° to 40° C Place 18” (20.32 cm) up from the bottom of Sensor Height the floor Do not mount directly to floor.

  • Page 13: Product Description

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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 SMART SENSOR 2 MODULE(S) SPECIFICATION (Section 2.1.2). The AMC-400 Digital Transmitter is hot pluggable and is powered by a DC power source.

  • Page 14: Front Lid Overview

    AMC-400 Series Digital Transmitter with Smart Sensor 2 3.2 FRONT LID OVERVIEW Display Smart Sensor 2 status LED Transmitter status Modbus Address Sensor & Vent Enclosure Push button Figure 3-1 Front Lid View 1. Enclosure: Enclosure and Lid Assembly, PVC 4”x4” Wall mount with mount points.

  • Page 15: Rear Lid Overview

    AMC-400 Series Digital Transmitter with Smart Sensor 2 3.3 REAR LID OVERVIEW Modbus Termination Smart Sensor 2 Termination Transmitter female connector (connects to SS2 male connector) Transmitter board Sensor SS2 mounting hole SS2 Board mounted Mounting Standoffs RS485 A RS485 B...
  • Page 16 AMC-400 Series Digital Transmitter with Smart Sensor 2 8. Power and Communication This 6 pin male plug connector contains both power and Connector: communication network connection points. The power is normally 24VDC and the communication network is MODBUS over RS-485.

  • Page 17: Smart Sensor 2 Module With Electrochemical Sensor Overview

    AMC-400 Series Digital Transmitter with Smart Sensor 2 3.4 SMART SENSOR 2 MODULE WITH ELECTROCHEMICAL SENSOR OVERVIEW Smart Sensor 2 Board SS2 male connector Front Back VREF test point SNS1 VREF SNS3 Sensor Location SNS4 GND test point VDD test point Figure 3-3 Smart Sensor 2 Module with Electrochemical Sensor View 16.

  • Page 18: Smart Sensor 2 Module With Catalytic Sensor Overview

    AMC-400 Series Digital Transmitter with Smart Sensor 2 19. VREF 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. 20. Sensor: This component may be a variety of 2 or 3 pin electrochemical sensors.

  • Page 19: Catalytic Sensor Characteristics

    AMC-400 Series Digital Transmitter with Smart Sensor 2 16.SS2 Male Connector: This 7 pin connector mates with the Digital Transmitter female connector. This connector carries the power and communication. 17.VDD Test Point: This VDD Test Point is to be used by service technicians only.

  • Page 20: Maximum Range

    AMC-400 Series Digital Transmitter with Smart Sensor 2 Relative Sensitivity LEL (%vol) Methane Hydrogen Ethylene Propane Butane n-Pentane 71 Hexanes Table 3-1 Cross Sensitivity 3.6.3 MAXIMUM RANGE Although the sensor output is linear to 100%LEL, the use of catalytic sensors is not recommended over that range.

  • Page 21: Installation

    Ensure a balanced layout of sensors to cover the intended area. As defined in section 4.1 try to mount catalytic based sensor versions as close to the power source as possible. If water spraying or splashing could be an issue a WS00-400 AMC-400 Series weather shield is recommended. Example location, parking garage with a wash bay.

  • Page 22: Enclosure Mounting And Orientation

    AMC-400 Series Digital Transmitter with Smart Sensor 2 4.1.1 ENCLOSURE MOUNTING AND ORIENTATION 4.600 Ø0.200 (4Plcs) 4 Mounting Holes Wiring Conduit Wiring Figure 4-1 Enclosure Mounting and Orientation 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).
  • Page 23 AMC-400 Series Digital Transmitter with Smart Sensor 2  Route cabling away from AC power cabling and any source of electro-magnetic interference (EMI) or radio frequency interference (RFI) such as power transformers, electric motors, etc.  EMT (Electrical Metal Tube) conduit also adds an added degree of electrical shielding against EMI (Electro-Magnetic Interference) from devices such as RF (i.e.

  • Page 24: Figure 4-3 Example Of Connections To A 120Vac Amc-1Db1-1Xxxxx Digital Monitor

    AMC-400 Series Digital Transmitter with Smart Sensor 2 DIGITAL MONITOR AMC-1DB1-XXXXX MAIN PCB BOARD DISPLAY SW12 SW14 SW11 SW13 TO RELAYS 13 TO 16 ANA1 ANA3 ANA4 ANA2 4x ANALOG 2x AUDIO TO RELAYS 9 TO 12 TO BAS TO MODBUS2...

  • Page 25: Amc-1Dbx Digital Monitor Wiring Details

    AMC-400 Series Digital Transmitter with Smart Sensor 2 Warning: Care must be taken when connecting services to Power and Communication Connector. Do not use SIG GND on AMC- 400 for powering. Cable shield(s) are to be connected to CGND. Mixing power and communication connections can cause permanent damage.

  • Page 26: Power Supply

    AMC-400 Series Digital Transmitter with Smart Sensor 2 4.2.1.2 POWER SUPPLY The AMC-400 Digital Transmitter is 24VDC powered typically either by a 120VAC AMC-1DB1- 1XXXXX Digital Monitor or a 24VDC AMC-1DB1-2XXXXX Digital Monitor. The 120VAC AMC-1DB1-1XXXXX Digital Monitor should be used when a maximum of 1A of current is required from its 24VDC output for MODBUS devices (transmitters, etc).

  • Page 27: Figure 4-4 5 Example Of Connections To A 24Vdc Amc-1Db1-2Xxxxx Configuration

    AMC-400 Series Digital Transmitter with Smart Sensor 2 DIGITAL MONITOR AMC-1DB1-2XXXXX AMC-IDPS-7A 24VDC 7A POWER SUPPLY MAIN PCB BOARD DISPLAY 1. See AMC-1DBX Digital Monitor Wiring Details below SW12 SW14 SW11 SW13 TO RELAYS 13 TO 16 ANA1 ANA3 ANA4...

  • Page 28: Communication

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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 + should be connected to +24VDC power terminal at monitor and Digital Transmitter - should be connected to SGND power terminal at monitor.

  • Page 29: Operation And Calibration

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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.
  • Page 30 AMC-400 Series Digital Transmitter with Smart Sensor 2 Sensor Status Definition Action “ ” Sensor in stabilization Power Up Period Wait up to 5 minutes for sensor to stabilize. “ ” Sensor needs Calibration Consult CALIBRATION and MAINTENANCE sections in this manual.

  • Page 31: Figure 5-1 Front Panel User Interface

    AMC-400 Series Digital Transmitter with Smart Sensor 2 Display Smart Sensor 2 status LED Modbus Address 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 to access it through a small hole. Use Wiha 27215 slot screwdriver.

  • Page 32: Transmitter Status Led

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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 healthy MODBUS activity detected, while a period of fast blinking red TX status can indicate a momentary MODBUS fault.

  • Page 33: Troubleshooting Modbus Using The Transmitter Status Led

    AMC-400 Series Digital Transmitter with Smart Sensor 2 Below is the possible Transmitter Status LED: 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...

  • Page 34: Sensor Status Led

    AMC-400 Series Digital Transmitter with Smart Sensor 2 5.1.5 SENSOR STATUS LED The Sensor LED Status under normal operation has a slow blinking green indication. Slow blinking green indicates good Smart Sensor 2 communication detected and no sensor faults. Numerous sensor faults can occur under various situations and is indicated with momentary fast blinking red indication.

  • Page 35: Initial Configuration

    AMC-400 Series Digital Transmitter with Smart Sensor 2 5.2 INITIAL CONFIGURATION Initial installation requires a unique MODBUS address to be configured for each MODBUS devices connected to the same MODBUS channel. The current MODBUS address may be pre- configured and labeled on the front panel in small box (see front panel view item 5). User can change the MODBUS address by entering configuration.

  • Page 36: Calibration

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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 >2 seconds and release at the item A01. The MODBUS title “...
  • Page 37 AMC-400 Series Digital Transmitter with Smart Sensor 2 Note: When the gas sensor needs calibration or service the display will alternate between the reading value and the letters “ ” and/or “ ”. Warning: When performing calibration the results are not saved in Smart Sensor 2 until successful Span procedure has been completed.

  • Page 38: Required Equipment; Exchange Program

    AMC-400 Series Digital Transmitter with Smart Sensor 2 5.3.1 REQUIRED EQUIPMENT; EXCHANGE PROGRAM For qualified personnel, the following is a recommended list of equipment required:  5/16 nut driver and Phillips and Robertson screw driver set  TOOL SCREWDRVR SLOT ESD 1.5MM, Wiha 27215.
  • Page 39 AMC-400 Series Digital Transmitter with Smart Sensor 2 2) Enter Configuration from normal operation mode by push and holding pushbutton for >2seconds and then releasing. The configuration title “ ” will be displayed. Scroll through to the “ ” item with short presses. To begin zero calibration enter the “...

  • Page 40: Gas Test And Service Modes

    AMC-400 Series Digital Transmitter with Smart Sensor 2 9) At the beginning of span calibration the AMC-400 Digital Transmitter will display “ ” “ ”. 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.

  • Page 41: Special Configuration For Service

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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 >2seconds and then releasing.
  • Page 42 AMC-400 Series Digital Transmitter with Smart Sensor 2 To inhibit this SEr operation enter Digital Transmitter Configuration; from normal operation the user must push and hold the pushbutton for >2seconds (“ ”) to enter “ ”. Scroll through to “...

  • Page 43: Maintenance

    AMC-400 Series Digital Transmitter with Smart Sensor 2 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.

  • Page 44: Appendix: Digital Transmitter Configuration Menu Flow

    AMC-400 Series Digital Transmitter with Smart Sensor 2 7 APPENDIX: DIGITAL TRANSMITTER CONFIGURATION MENU FLOW Configuration >=2s “-CF” EXIT <2s “A01” ENTER Digital MODBUS Do Modbus Setup >=2s SETUP “-Fb” Transmitter (FRONT BUS) Configuration <2s “A02” ENTER Do Smbus Setup...

  • Page 45: Appendix: Digital Transmitter Calibration Menu Flow

    AMC-400 Series Digital Transmitter with Smart Sensor 2 8 APPENDIX: DIGITAL TRANSMITTER CALIBRATION MENU FLOW “-0C” Or “-SC” Limit Check Entry NEXT Digital GOOD Transmitter Last Enter New Gas Successful gas Concentration Zero or Span Concentration Calibration Menu NEXT PUSHBUTTON ACTIONS “Gas On”...

  • Page 46: Appendix: User Supported Menu Guide

    AMC-400 Series Digital Transmitter with Smart Sensor 2 9 APPENDIX: USER SUPPORTED MENU GUIDE Below is the configuration menu that describes the USER supported portion of the Digital Transmitter. < is Pushbutton input; PB is pressed, SEL is selected. > is LCD output; ___ is a Static Display, while ___ is Blinking Display...
  • Page 47 AMC-400 Series Digital Transmitter with Smart Sensor 2 <SEL >063 Default or Last MODBUS Select to edit 1 Address position address <SEL >_ Select 2 position <PB > Change 2 position <PB > 073 Change 2 position <PB > 083...
  • Page 48 AMC-400 Series Digital Transmitter with Smart Sensor 2 <PB >d02 LCD On Mode Choice Scroll to next Choice <SEL >d03 Location Label Choice Select Location Label Configuration < SEL >LO1 Default or Last Label Select to Change Label <PB >__1...
  • Page 49 AMC-400 Series Digital Transmitter with Smart Sensor 2 Minimum 25 seconds. PB or SEL to end >GAS >OFF Gas Off Instruction SEL to Accept PB or idle (Maximum 60) seconds to discard (bad) >Acc or bad Confirmation 1second <SEL >-OCA...
  • Page 50 AMC-400 Series Digital Transmitter with Smart Sensor 2 <SEL >050 Select finish display <PB >050 Enter Gasing >GAS>ON Gas On Instruction Maximum 60seconds PB or SEL to continue >_uP Increasing Concentration PB or SEL to end >dn_ Decreasing Concentration PB or SEL to end >2.00...
  • Page 51 AMC-400 Series Digital Transmitter with Smart Sensor 2 <SEL >1__ Select finish display >co or no2 Scrolling Gas Concentration Running Display. Unit >100 Display; will force gas concentration to Displays Sensor Unit if >1 monitor without unit present, Sensor gas, gassing.

  • Page 52: Appendix: 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.
  • Page 53 AMC-400 Series Digital Transmitter with Smart Sensor 2 Data Register MODBUS Monitor Register Access Index Serial Number; a 16bit number between 1- *1 Read 65535 exclusive to a specific AMC-400 model. Hardware Rev / Software Rev; a 16bit *1 Read...
  • Page 54 AMC-400 Series Digital Transmitter with Smart Sensor 2 Gas Number / Device Address; a 16bit *1 Read number 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.
  • Page 55 AMC-400 Series Digital Transmitter with Smart Sensor 2 High Alarm; a reserved 32bit float number for 20-21 *1 Read Transmitter high alarm set point. *2 Not *3 Float Supported. Low Alarm; a reserved 32bit float number 22-23 *1 Read Transmitter low alarm set point. *2 Not *3 Float Supported.

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