Oldham iTrans 2 Installation And Operation Manual
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Oldham iTrans 2 Installation And Operation Manual

Fixed point single or dual gas monitor with dual analog outputs
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FIXED POINT
SINGLE OR DUAL GAS MONITOR WITH
DUAL ANALOG OUTPUTS
Installation • Operation • Wiring • Troubleshooting
Part Number: 77036429-EN
Version: 01
Release Date: June 29, 2013

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Summary of Contents for Oldham iTrans 2

  • Page 1 FIXED POINT SINGLE OR DUAL GAS MONITOR WITH DUAL ANALOG OUTPUTS Installation • Operation • Wiring • Troubleshooting Part Number: 77036429-EN Version: 01 Release Date: June 29, 2013...
  • Page 2 © 2013 Industrial Scientific - Oldham. All rights reserved. is a trademark of Industrial Scientific - Oldham. ModBus® is a registered trademark of Schneider Automation Inc. ModBus® protocol™ is a trademark of Schneider Automation Inc. All other trademarks and registered trademarks are the property of their respective owners.
  • Page 3 Alarms relays are non-latching. When connecting 4-20 mA outputs to inductive loads, Industrial Scientific - Oldham recommends using an isolation barrier in line with the 4-20 mA signal. Interior grounding terminal is to be used for grounding, the exterior...
  • Page 4 6 months. Further, Industrial Scientific - Oldham recommends prudent testing and/or includes calibration after a gas alarm. All calibration service to sensors should be recorded and accessible.
  • Page 5 Our Mission Preserving human life: on, above and below the earth. Delivering highest quality, best customer service… every transaction, every time. In practical terms, that means developing both portable instruments and fixed-point systems for detecting, measuring and monitoring a wide variety of gases, including toxic and combustible gases, as well as oxygen.

  • Page 7: Table Of Contents

    Contents Chapter 1 | Overview ............11 Overview of the Gas Monitor ..........11 Specifications ..................12 Agency Approvals - CSA ................. 14 Chapter 2 | Hardware Overview ........... 15 Main Electronics Unit (Housing) .............. 15 Sensor ..................... 16 Display ..................... 16 Inputs –...
  • Page 8 Sample Gas Reading via ModBus Network ..........54 ModBus Register List ................54 ModBus Resources ................. 59 Termination ....................59 Chapter 7 | Maintenance ............61 Introduction ....................61 Sensor Replacement ................62 Zero and Calibration ................62 Chapter 8 | Troubleshooting ..........

  • Page 11: Chapter 1 | Overview

    Chapter 1 | Overview Overview of the Gas Monitor fixed gas monitor is an independent monitor capable displaying concentrations as well as sensor or instrument specific diagnostics. comes standard with independent 4-20 mA outputs for each channel, making it ideal for interfacing to control units.

  • Page 12: Specifications

    Specifications Specifications for the gas monitor are listed in Table 1-1. Item Description Cast aluminum, poly-bonded coating or 316 stainless steel. Both are Enclosure explosion-proof, NEMA 4X, IP66 rated. Dimensions 5.0 × 6.0 × 5.0 inches (127 x 153 x 129 mm) Combustible Gases: Catalytic bead and/or Non-Dispersive Infrared Sensors (NDIR) Oxygen/Toxic Gases: Electrochemical diffusion...
  • Page 13 Sensor Range/Resolution Combustible Gases 0 -100% LEL in 1% increments Hydrogen 0 - 999 ppm in 1 ppm increments Oxygen 0 - 30.0% by vol in 0.1% increments Ammonia 0 - 200 ppm in 1 ppm increments Carbon Monoxide 0 - 999 ppm in 1 ppm increments Carbon Monoxide/H2 Null...

  • Page 14: Agency Approvals - Csa

    Electrical Equipment for Use in Hazardous (Classified) Locations UL Std No. 1604-Division 2 Hazardous Location Electrical Equipment ISA S12.13 Part I-2000-Performance Requirements, Combustible Gas Detectors (iTrans 2 with catalytic sensors only) CSA Std C22.2 No.30-M1986-Explosion-Proof Enclosures for Use in Class I Hazardous Locations CSA Std C22.2 No.142-M1987-Process Control Equipment...

  • Page 15: Chapter 2 | Hardware Overview

    Chapter 2 | Hardware Overview Main Electronics Unit (Housing) body is a cast aluminum housing that contains the electronics of the gas monitor. Details of a single-gas housing are shown in Figure 2-1. Figure 2-1 Details of a Single-Gas Gas Monitor...

  • Page 16: Sensor

    Sensor Item Descriptions Aluminum, Anodized, Explosion-proof: Class I, Divisions 1 and 2 Groups B, C, D, and Ex d IICT6 Gb (China) Sensor Housing Material Aluminum, Anodized w/Gore-Tex Membrane (Division 2/Zone 2 toxics), Suitable for Class I, Division 2 Groups A, B, C, D Dimensions 3.0 ×...

  • Page 17: Inputs - Intrusive And Non-Intrusive

    Inputs – Intrusive and Non-Intrusive gas monitor can be configured using intrusive and non- intrusive means. Both methods of configuration are accomplished through physical inputs that are visible behind the glass panel of the gas monitor. A set of four keys are used when intrusive programming is appropriate (i.e., when the enclosure can be removed and when the keys can be manually pressed).

  • Page 18: Electronics Modules

    Electronics Modules The electronics module of the gas monitor contains connectors and jumpers for wiring and configuring the device. The electronics module for a main unit is shown in Figure 2-4. The electronics module for a remote unit is shown in Figure 2-5. Wiring details are explained in Chapter 4 | System Wiring.
  • Page 19 Figure 2-5 Electronics Board for Remote Sensor # # #...

  • Page 21: Chapter 3 | Installation

    Chapter 3 | Installation Introduction can be mounted in one of two ways. The unit can be wall- mounted using the wall mounting holes in the enclosure, or it can be mounted onto a column using U-bolts. Each of these options is discussed in this chapter.
  • Page 22 Figure 3-1 Mounting the Gas Monitor on a Wall Figure 3-2 Mounting the Gas Monitor on a Column Using U-Bolts...

  • Page 23: Chapter 4 | System Wiring

    Chapter 4 | System Wiring Introduction This chapter outlines the steps required for wiring the gas monitor. These steps include the following: Wiring Preparation Power and Output Wiring Sensor Wiring ModBus Interface Wiring Alarm Relay Wiring Each of these steps is outlined in the sections that follow. IMPORTANT: Perform all wiring in accordance with local electrical codes and local authorities having jurisdiction.

  • Page 24: Alarm Relay Wiring (J1, J5, And J6)

    Thread control, signal, and power wires into the transmitter housing. Shielding from either the controller or remote sensors should be bonded to the enclosure screw located inside the IMPORTANT: Use of this product in areas where it may be subject to large amounts of electromagnetic interference may affect the reliable operation of this device and should be avoided.

  • Page 25: Power And Output Wiring (J1)

    Figure 4-1 Alarm Relay Connectors J6, J5 and J1 Power and Output Wiring (J1) Connect the power and signal wires to the appropriate wiring terminals as follows. 24 V: Connect 24 VDC (12-28 VDC) supply power CH 1: Channel 1, 4-20 mA output signal CH 2: Channel 2, 4-20 mA output signal GND:...

  • Page 26: Sensor Wiring (J3)

    NOTE: When not using 4-20 mA outputs, use the supplied resistors to connect CH-1 and CH-2 to GND. If these resistors are not connected and the 4-20 mA outputs are not used, a “P” will appear on the display, indicating an open loop condition.
  • Page 27 NOTE: Use #18 AWG (0.9 mm²) shielded cable for remote sensors. Maximum distance is 200 meters. NOTE: When wiring remote sensors to the , “485 B” on J3 should be connected to “B-” in the remote sensor enclosure, and “485 A” on J3 should be connected to “A+”...
  • Page 28 Figure 4-4 Wiring Diagram for a Single On-board Sensor...
  • Page 29 Figure 4-5 Wiring Diagram for a Remote Sensor (Stand Alone) NOTE: When the remote sensor is at distances of 200 meters or further, and the sensor is not communicating, the jumper J1 may need to be moved to terminals 1-2.
  • Page 30 NOTE: If using remote sensors and the does not recognize the sensor upon power up (displays a sensor fault), check the placement of this jumper. If the jumper J1 is on terminals 1-2, move the jumper to terminals 2- For digital ModBus signal and power use a minimum of 4 conductors #18 AWG (0.9 mm²) insulated and shielded cable.
  • Page 31 Figure 4-7 Wiring Remote Sensors Back to...

  • Page 32: Digital Modbus Rtu Interface Wiring (J1)

    Figure 4-8 Wiring Dual Remote Sensors Digital ModBus RTU Interface Wiring (J1) ModBus Interface Wiring Overview To interface the to a digital controller, PLC, or HMI, connect the power and ground to the appropriate terminals mentioned above. The digital...
  • Page 33 signals are wired into the RS485A and RS485B terminals on the board. See Figure 4-9. Figure 4-9 Wiring Diagram for the ModBus Interface Setting the ModBus Address on the Located on the back of the electronics module is an 8-position DIP switch. This switch bank is used to set the ModBus Slave Address for the unit.
  • Page 34 Figure 4-11 Setting the ModBus Address (Example Address of 240 Decimal) Setting the ModBus Address for Stand-Alone Sensors NOTE: This section is only necessary if you are connecting a sensor directly to a ModBus controller, PLC, or digital system. For stand-alone sensor heads used in a ModBus network, the address is set in the same manner.
  • Page 35 Figure 4-12 Location of Address DIP Switch on Sensor Electronics Module Figure 4-13 Setting the ModBus Address for a Stand-Alone Sensor...

  • Page 36: Wiring Conclusion

    NOTE: If adding a second sensor to an existing module, set the ModBus address to ↑↑↑↑↓↓↓↓ which represents 11110000 binary (and 240 decimal). See Chapter 6 | for more information on the ModBus interface. (Note that DIP switches are pre-set at the factory for all dual-sensor units). Wiring Conclusion Once wiring is complete, place the electronics module back in the...

  • Page 37: Chapter 5 | Operation

    Chapter 5 | Operation Initial Start-up Once power is applied (12-28 VDC), the is operational. The LED display powers up, and the system enters a start-up period. During this start-up period, the identifies the sensors that are connected and then enters a three minute warm-up period. Warm-up Period During this warm-up period, the 4 20 mA outputs are limited to 3 mA (16...
  • Page 38 As gas concentrations increase, the respective channel’s readings will respond accordingly. If low or high alarm levels are exceeded, an alarm indication will appear in the first digit of the display. An “L” indicates a low alarm while an “H” indicates a high alarm.

  • Page 39: Programming Mode Overview

    Figure 5-4 Locations of Reed Switches and Push Buttons Programming Mode Overview NOTE: Zeroing and calibrating the instrument can be accomplished one of two ways via programming mode. Zeroing and calibrating (as well as other programming options) can be entered either from the keypad or non- intrusively using the magnetic wand.

  • Page 40: Programming Mode - Non-Intrusive Operation

    Figure 5-5 Components of the Display Programming Mode – Non-intrusive Operation Introduction Non-intrusive calibration and programming is accomplished using a magnetic wand that comes with the unit. Placing the magnetic wand over the embedded reed switches located under the CH1 and CH2 designations (see Figure 5-4) of the faceplate will allow you to scroll through menus and enter the desired function.

  • Page 41: Sensor Type

    Sensor Type To enter non-intrusive operation during the Normal Operating Mode, place the magnetic wand over the CH1 designation. The will display the sensor type for channel 1 for 5 seconds then enter in the Zero Menu. NOTE: you want to operate channel 2, place the magnetic wand on CH2 first to enter the setup Figure 5-6 Sample Display Entering...
  • Page 42 Calibration Calibration is the next available option. Calibration is designated with a “C” in the status bit. A 10 second timer is displayed on the bottom line of the LED display. To initiate calibration, place magnetic wand over CH2 during the 10-second countdown.
  • Page 43 Figure 5-10 Apply CalGas Display NOTE: Flow rate for calibration is 0.5 liter per minute (LPM) except for NH3, ClO2, Cl2, NO2, SO2, and HCl which require 1.0 LPM. Changing Span Gas Concentration The option after calibration is Span Gas Concentration. The span option is designated with a flashing “S”...

  • Page 44: Programming Mode - Push Button Operation

    Sensor Span Reserve The last option available is viewing the sensor span reserve. span reserve option designated with an “r” in the status bit. The current span reserve is displayed on the top line of the LED display. Figure 5-13 Sample Span Reserve Display Programming Mode –...
  • Page 45 Entering Programming Mode and Selecting a Channel On entering the correct password, the channel selection screen will be displayed on the LED display. Press “Mode” button switch between the available channels then press the “ ” button to confirm the channel selection.
  • Page 46 Set Low Alarm The low alarm setpoint is designated with an “L” displayed in the status bit and current low alarm value displayed next to it. To change the low alarm setpoint, press the “ ” button during 10-second countdown. If you do not press “ ” during the 10-second countdown, will return to the Normal Operating Mode.
  • Page 47 4-20 mA Analog Output Range The range of 4-20 mA analog output is set to full range as factory default. For full range values, see Appendix D. If the user desires to change the output scaling of the 4-20 mA analog signal, they can do so. NOTE: Only the upper end range can be changed.
  • Page 48 Set System Time – Hour The system’s clock hour setting is out, the will go back to the designated with an “h” in the status Programming Mode. bit and current value next to it. To change the hour, press the “ ” button during second...
  • Page 49 If you initiate the month option, the status bit will start to flash and the month value can be changed by using the “↑” and “↓” keys. When the desired value is reached, press the “ ” key. If the value is not saved before the time-out, the will go back to the Programming Mode.
  • Page 50 NOTE: Before the will calibrate, the unit will enter the zeroing process. Please make sure that you do not apply gas to the instrument while it is zeroing. will automatically zero before calibration. Zeroing is designated with a flashing “0” in the status bit. Once zeroing is complete, the will automatically enter the calibration routine.
  • Page 51 If you initiate the change span option, the status bit will start to flash and the span value can now be changed. The current span value is displayed on the top line of the LED display. Use the “↑” and “↓” keys to change the span value.

  • Page 53: Chapter 6 | Modbus Interface

    Chapter 6 | Modbus Interface Introduction IMPORTANT: device with public Modbus interface can also be configured to operate with a MX43 controller from Oldham. Please follow the procedure given below to enable MX43-compatibility mode on Set the Modbus ID of using...

  • Page 54: Sample Gas Reading Via Modbus Network

    IMPORTANT: When commissioning master and slave units on a ModBus network, it is critical to ensure that every device on the ModBus network must have a unique address. Otherwise, abnormal behavior of the entire serial bus can occur. Sample Gas Reading via ModBus Network To get a gas reading for Channel 1, you must read register 40102.
  • Page 55 Inst Host Addr Range Description Examples: +5 ppm = register value of 00005 = $0005 -5 ppm = register value of 65531 = $FFFB Gas Type Holds the decimal place holder and the gas type code. The most significant byte (MSB) holds the number of decimal places to be used in calculations for this gas.
  • Page 56 Inst Host Addr Range Description $0107 = 1 decimal place for gas type HCN $0002 = 0 decimal places for gas type H $0206 = 2 decimal places for ClO Instrument Mode Holds code current mode instrument. Possible working modes of instrument are listed below.
  • Page 57 Inst Host Addr Range Description Last Alarm Date (mmdd) Holds the month and day when the instrument had the last alarm. High byte = $01 to $0C 40115 Low byte = $01 to $1F Examples: Dec 25 is represented as $0C19 June 31 is represented as $061F Last Alarm Date (00yy) Holds the last two digits of the year when...
  • Page 58 Inst Host Addr Range Description $0063 RTC Hours and Minutes Holds the hours and minutes to which the RTC should be set. The most significant byte (MSB) represents the hour from $00 to $18 (00-24). The least significant byte MSB=$00 (LSB) represents the minutes from $00 to 40119 $18, LSB=$00 to...

  • Page 59: Modbus Resources

    “public” jumper that can be used to jumper in a 120-Ohm terminating resistor. By default, this jumper is not in place. Industrial Scientific - Oldham does not recommend changing the placement of any of the other jumpers on this board.

  • Page 61: Chapter 7 | Maintenance

    Infrared sensor should be calibrated on an annual basis with functional tests every 6 months. Further, Industrial Scientific - Oldham recommends prudent testing and/or calibration after a gas alarm. All calibration/service to the sensors should be recorded and accessible.

  • Page 62: Sensor Replacement

    Sensor Replacement Sensor replacement must be done by qualified personnel. To replace the sensor, shut down power to the unit. Un-thread the sensor-housing cap from the sensor housing. There is a set screw that secures the cap to the housing. Once the cap is removed, remove the old sensor and sensor board. When installing the new sensor/sensor board make sure you line up the notch in the board with the alignment pin.

  • Page 63: Chapter 8 | Troubleshooting

    Chapter 8 | Troubleshooting Introduction This chapter provides troubleshooting information for the monitor. Diagnosing Common Problems Symptom Problem Solution Input voltage is too LED display does not Check for presence of input light up. voltage. Electronics module has failed Unit calibration mode Exit calibration mode.

  • Page 64: Fault Codes

    Symptom Problem Solution ground. 4-20 mA signal goes Ensure the sensor is working into over range for “U Or” appears on the properly via a second ary gas about seconds display detection source and the 4-20 before settling mA is scaled correctly. Table 8-1 Common Problems Fault Codes Fault...
  • Page 65 Function LED Display Description Code Span Set span gas concentration Concentration Sensor Span Reserve Check the span reserve Date The latest alarm time-date Month The latest alarm time-month Date The latest calibration time-date The latest calibration time- Month month Year The latest calibration time-year Table 8-3 Function Codes # # #...

  • Page 67: Chapter 9 | Warranty

    Chapter 9 | Warranty Warranty Industrial Scientific - Oldham fixed system products are warranted to be free from defects in material and workmanship for a period of twenty-four (24) months from the date of shipment. The above warranty does not include consumables such as pumps, or...
  • Page 68 It is expressly agreed by the parties that any technical or other advice given by Industrial Scientific - Oldham with respect to the use of the goods or services is given without charge and at buyer’s risk; therefore, Industrial Scientific - Oldham assumes no obligation or liability for the advice given or results obtained.

  • Page 69: Appendix A | Hart Interface

    Appendix A | HART Interface Introduction IMPORTANT: This portion of the instruction manual is only applicable if your unit has been shipped HART Enabled. fixed-point gas monitor is designed to provide continuous monitoring of hazardous gases in the workplace. The is capable of displaying one or two gas concentrations as well as sensor or instrument specific diagnostics.

  • Page 70: Hardware Overview

    Items Description Digital 4-20mA FSK HART (HCF Compliant ) Signal Outputs Analog 4-20mA (linear analog) Table A - 1 HART Supported Signals Hardware Overview For details please see Chapter 2 |. IMPORTANT: In Chapter 2 |, the “Electronic Modules” section is replaced with the following section.

  • Page 71: Installation

    Figure A - 3 Electronics Board for Remote Sensor Unit Installation For details please see Chapter 3 |. System Wiring For details please see Chapter 4 |. IMPORTANT: In Chapter 4 |, the “Power and Output Wiring (J1)” section is replaced with the following section.
  • Page 72 Figure A - 4 Wiring Diagram of Single Sensor HART Supported...
  • Page 73 Figure A - 5 Wiring Diagram of Dual Sensor HART Supported...
  • Page 74 Connect the power and signal wires to the appropriate wiring terminals as follows. 24 V: Connect 24 VDC (12-28 VDC) supply power CH-1: Channel 1, HART 4-20 mA output signal CH-2: Channel 2, 4-20 mA output signal GND: DC return Figure A - 6 Power and Signal Connector J1 on HART Supported HART 4-20mA Wiring (CH-1) CH-1 and GND on J1 connector are used as HART 4-20mA interface...
  • Page 75 Figure A - 7 Example of HART Supported Wiring NOTE: Use supplied green conductor for enclosure ground. NOTE: is a 3- or 4-wire 4-20mA device. For dual sensor configuration you must have a second 4-20mA signal wire pulled to the unit. NOTE: When not using isolated 4-20mA or HART 4-20mA outputs, use the supplied resistors to connect CH-1 and CH-2 to GND.

  • Page 76: Operation

    Operation For details please see Chapter 5 |. IMPORTANT: All the details given in Chapter 5 | regarding the operation of are valid for a HART supported unit. This section only provides the details on operation of HART interface. Initial Start-up HART 4-20mA interface...
  • Page 77 Calibration and Zeroing Modes enters the calibration or zeroing mode when the user selects corresponding operation sensor through intrusive/non- intrusive programming screen or through HART 4-20mA interface. During both zeroing calibration modes the HART channel current remains fixed at 3mA (16mA for oxygen sensor).
  • Page 78 Fault 4-20mA Fault Type Description Code Output 1FFF Failed Sensor 1 mA Smart sensor communication error 2FFF Missing Sensor 1 mA Sensor board communication error Sensor internal parameters error – Sensor ConF Recover after factory configuration of Configuration sensor Calibration Calibration error –...

  • Page 79: Hart Interface

    HART Interface Electronic Device Descriptor (EDD) An Electronic Device Descriptor (EDD) is available for which is easiest and the quickest way to access all the process variables of .The EDD can be either loaded on a PC host simulator or on a handheld unit.
  • Page 80 Figure A - 15 EDD GUI View Figure A - 16 PC to HART Interface Wiring Diagram...

  • Page 81: User Commands

    User Commands supports all the standard universal HART commands. This section only provides the details of the device-specific commands. Read Commands All read commands are dispatched without any request data and the response data is then translated to get the requested process variables. In case of a single sensor the parameters of disconnected sensor are uninitialized and a warning is indicated in the response code of the...
  • Page 82 Unsigned-8 RTC Month Channel 1 Unsigned-8 RTC Year Channel 1 Unsigned-32 Total Operation Time (In Minutes) Channel 1 Unsigned-8 RTC Minute Channel 2 Unsigned-8 RTC Hour Channel 2 Unsigned-8 RTC Day Channel 2 Unsigned-8 RTC Month Channel 2 Unsigned-8 RTC Year Channel 2 14-17 Unsigned-32 Total Operation Time (In Minutes) Channel 2...
  • Page 83 13-16 Float IEEE 754 User Peak Channel 2 17-18 Unsigned-16 Previous OR Channel 2 Unsigned-8 Last Alarm Day Channel 2 Unsigned-8 Last Alarm Month Channel 2 Unsigned-8 Last Alarm Year Channel 2 22-23 Unsigned-16 Max Temperature Channel 2 24-25 Unsigned-16 Min Temperature Channel 2 Command 133 –...
  • Page 84 44-49 Latin-1 ASCII Manufacture Date Command 135 – Read Calibration Data – Response Length: 18 Bytes Byte Number Parsing Parameter Float IEEE 754 Span Reserve Value Channel 1 Unsigned-8 Last Cal Day Channel 1 Unsigned-8 Last Cal Month Channel 1 Unsigned-8 Last Cal Year Channel 1 Unsigned-16...
  • Page 85 Unsigned-8 RTC Year Channel 2 14-17 Unsigned-32 Total Operation Time (In Minutes) Channel 2 Command 141 – Write User Configuration – Response/Request Length: 36 Bytes Byte Number Parsing Parameter Float IEEE 754 Low Alarm Threshold Channel 1 Float IEEE 754 High Alarm Threshold Channel 1 8-11 Float IEEE 754...

  • Page 87: Appendix B | Acronyms And Abbreviations

    Appendix B | Acronyms and Abbreviations This appendix contains acronyms and abbreviations that are used within this document. Abbr Definition Ampere acrylonitrile butadiene styrene ASCII American Standard Code for Information Interchange binary digit bits per second centigrade C2H4 ethylene C2H6O ethanol C3H6 propylene...
  • Page 88 Abbr Definition Canadian Standards Association direct current distributed control system dual in-line package DISP display Fahrenheit frequently asked questions FAUL fault FIFO first-in-first-out ground hydrogen hydrogen sulfide hydrogen chloride hydrogen cyanide Industrial Scientific Corporation light emitting diode lower explosive limit (combustible gases) least significant bit milliampere millimeter...
  • Page 89 Abbr Definition phosphine programmable logic controller parts per million REST restart relative humidity real time clock remote terminal unit sulfur dioxide SPST single-pole, single-throw toxic Volts Table B - 1 Acronyms and Abbreviations # # #...

  • Page 91: Appendix C | Decimal, Binary, And Hex Equivalents

    Appendix C | Decimal, Binary, And Hex Equivalents This appendix lists the hexadecimal and binary equivalents of decimal numbers. ModBus device addresses are entered in hexadecimal format. This table provides a cross reference if only decimal addresses are known. Hexadecimal numbers are shown in 0x00 format on the left. Decimal equivalents are shown on the right.
  • Page 92 0x00 = 000 0x20 = 032 0x40 = 064 0x60 = 096 0x80 = 128 0xA0 = 160 0xC0 = 192 0xE0 = 224 0x17 = 023 0x37 = 055 0x57 = 087 0x77 = 119 0x97 = 151 0xB7 = 183 0xD7 = 215 0xF7 = 247 0x18 = 024 0x38 = 056 0x58 = 088 0x78 = 120 0x98 = 152 0xB8 = 184 0xD8 = 216 0xF8 = 248 0x19 = 025 0x39 = 057 0x59 = 089 0x79 = 121 0x99 = 153 0xB9 = 185 0xD9 = 217 0xF9 = 249 0x1A = 026 0x3A = 058 0x5A = 090 0x7A = 122 0x9A = 154 0xBA = 186 0xDA = 218 0xFA = 250...
  • Page 93 Binary Binary Binary Binary 00010011 01010011 10010011 11010011 00010100 01010100 10010100 11010100 00010101 01010101 10010101 11010101 00010110 01010110 10010110 11010110 00010111 01010111 10010111 11010111 00011000 01011000 10011000 11011000 00011001 01011001 10011001 11011001 00011010 01011010 10011010 11011010 00011011 01011011 10011011 11011011 00011100 01011100 10011100...
  • Page 94 Binary Binary Binary Binary 00110010 01110010 10110010 11110010 00110011 01110011 10110011 11110011 00110100 01110100 10110100 11110100 00110101 01110101 10110101 11110101 00110110 01110110 10110110 11110110 00110111 01110111 10110111 11110111 00111000 01111000 10111000 11111000 00111001 01111001 10111001 11111001 00111010 01111010 10111010 11111010 00111011 01111011 10111011...

  • Page 95: Appendix D | Ordering Matrix

    Appendix D | Ordering Matrix This appendix provides an ordering matrix for the gas monitor. Base part number iTrans2-ABCDEFG Single or dual on-board or remote toxic, combustible and oxygen sensors with dual 4-20 mA outputs (one per sensor) or ModBus RTU outputs. Remote sensor capable of operation up to 200 meters from main transmitter.
  • Page 96 4 = Hydrogen Sulfide (H2S) 4 = Hydrogen Sulfide (H2S) 5 = Sulfur Dioxide (SO2) 5 = Sulfur Dioxide (SO2) 6 = Nitrogen Dioxide (NO2) 6 = Nitrogen Dioxide (NO2) 7 = Chlorine (Cl2) 7 = Chlorine (Cl2) 8 = Chlorine Dioxide (ClO2) 8 = Chlorine Dioxide (ClO2) 9 = Hydrogen Cyanide (HCN) 9 = Hydrogen Cyanide (HCN)
  • Page 97 3 = 0 - 50 3 = 0 - 50 4 = 0 - 30 4 = 0 - 30 5 = 0 - 10 5 = 0 - 10 6 = 0 - 2 6 = 0 - 2 7 = 0 - 1 7 = 0 - 1 8 = 0 - 20...

  • Page 99: Appendix E | Factory Default Settings

    Appendix E | Factory Default Settings This appendix lists factory default settings based on the individual sensor(s) used. Refer to Table E - 1. Default Low Default Sensor Name Range Resolution Cal Gas Alarm High Alarm 0-999 ppm 1 ppm 100 ppm 35 ppm 70 ppm...

  • Page 101: Appendix F | Infrared Sensors

    Appendix F | Infrared Sensors The methane IR sensor is only intended to monitor methane gas. As seen in Figure F - 1, the cross-sensitivity of the methane IR sensor does not permit accurate measure of other combustible gases. It should be noted however, that the methane-IR sensor WILL respond to other combustible gases and is not methane specific.
  • Page 102 The propane IR sensor is factory configured to accurately monitor propane gas. As seen in Figure F - 2 the cross-sensitivity of the propane IR sensor does permit accurate measure of other combustible gases via a cross- reference factor. It should be noted however, that the propane-IR sensor WILL respond to other combustible gases and is not propane specific.

  • Page 103: Appendix G | Lel Correlation Factors

    (calibration gas) and the pentane row (gas being sampled)…in this case, 2.00. Therefore, the actual %LEL pentane is 20% (10x2.00). Calibration gases available from Industrial Scientific - Oldham.
  • Page 106 OUR MISSION Preserving human life on, above and below the earth. Delivering highest quality, best customer service every transaction, every time. EUROPEAN PLANT AND OFFICES Z.I. Est – rue Orfila B.P. 20417 – 62027 ARRAS Cedex FRANCE Tél.: +33 (0)3 21 60 80 80 – Fax: +33 (0)3 21 60 80 00 Web site : http://www.oldhamgas.com AMERICAS...

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