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OTIS OI-6000-L-C Series Operation Manual

Non-explosion-proof ambient air wire powered toxic gas detector
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Summary of Contents for OTIS OI-6000-L-C Series

  • Page 3 INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR SERVICING. DANGER DANGER: OTIS INSTRUMENTS INC. OI-6000-X-X-X-X-X-C IS AN AMBIENT AIR TOXIC GAS SENSOR ASSEMBLY AND ONLY MONITORS IN THE IMMEDIATE VICINITY OF THE SENSOR HOUSING. A SITE SURVEY IS REQUIRED IN ORDER TO DETERMINE THE BEST PLACEMENT AND QUANTITY OF SENSOR ASSEMBLIES.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS PRODUCT OVERVIEW ............................1 INTRODUCTION ..............................1 PRODUCT SPECIFICATIONS ..........................2 SYSTEM DIAGRAMS ............................. 3 1.3.1 EXTERNAL SYSTEM DIAGRAM ........................... 3 1.3.2 INTERNAL SYSTEM DIAGRAM..........................4 1.3.3 ASSEMBLY DIAGRAM ............................5 INSTALLATION AND START-UP .......................... 6 PRODUCT PLACEMENT ............................
  • Page 6 TABLE OF CONTENTS OPERATION SETTINGS ............................. 32 POWERING THE DEVICE ........................... 32 4.1.1 POWERING OFF ..............................32 4.1.2 POWERING ON ..............................32 SENSOR CALIBRATION ............................33 4.2.1 NULLING THE SENSOR (AUTO NULL) ......................33 4.2.2 CALIBRATING THE SENSOR (MANUAL CAL) ....................35 4.2.3 CALIBRATING THE SENSOR (AUTO CAL) ......................

  • Page 7: Product Overview

    Otis Magnetic Tool, will replace the directive of the button-press actions. To apply the Otis Magnetic Tool, hold the tool to the side of the device enclosure adjacent to the push-button that you wish to activate. When the magnetic switch is toggled, an on- screen indicator will appear on the display screen, signifying that a connection was made.

  • Page 8: Product Specifications

    PRODUCT OVERVIEW 1.2 PRODUCT SPECIFICATIONS System Specifications Operating Voltage +12 to +35 VDC Current Draw 300 mA Maximum Operating Temperature Range -20⁰C to +54⁰C Humidity Range 0% to 98% Relative Humidity, Noncondensing Measurement Range Varies based on gas type Response Time Varies based on gas type Protection Power Electromagnetic Interference (EMI) Filter...

  • Page 9: System Diagrams

    8 Sensor Housing Cap 9 Sensor Housing Base 10 Gas Type Label 11 ADD Button 12 Radio Type Label 13 Display Screen 14 Enclosure Lid 15 Otis Magnet 16 Calibration Adapter Kit (Sold Separately) ⑭ ⑯ ⑮ OI-6000-X-X-X-L-X-C OPS_GUIDE_REV 1.1...

  • Page 10: Internal System Diagram

    PRODUCT OVERVIEW 1.3.2 INTERNAL SYSTEM DIAGRAM 1 Digital Sensor Interface Board 2 Sensor Housing Adapter Board 3 Sensor Housing Cable Socket 4 Digital Sensor Interface Board Socket 5 Sensor Housing Cable Plug 6 RS-485 Modbus Terminal Block 7 Fault Terminal Block 8 Piezo Alarm Terminal Block 9 Power/4-20 Terminal...

  • Page 11: Assembly Diagram

    PRODUCT OVERVIEW 1.3.3 ASSEMBLY DIAGRAM Enclosure Lid Internal System Enclosure Base Power Cord Grip AC Power Cord (If equipped with an AC Power Supply) Sensor Housing Cap Sensor Housing Base with Element Sensor Housing Plug OI-6000-X-X-X-L-X-C OPS_GUIDE_REV 1.1...

  • Page 12: Installation And Start-Up

    (1) the site/facility where the equipment is being installed and (2) the potentially present gas types and their dispersion. Otis strongly recommends that the end-user consults with the appropriate third party Health, Safety and Environmental (HSE) and Industrial Hygiene (IH) professionals to determine the final quantity and placement of your gas detection devices.

  • Page 13: Product Mounting

    INSTALLATION AND STARTUP 2.2 PRODUCT MOUNTING It is recommended to mount the unit to a solid structure (such as a concrete wall, steel column, or angle iron) where a minimum of vibration will be transmitted to the unit. Alternately, a pole may be used along with a strap or a U-bolt, as long as it is rigid and of sufficient strength.

  • Page 14: Opening The Enclosure

    To provide power to the OI-6000, you will need to connect the power cable from the sensor terminal block on an Otis monitor, or alternate user supplied power source, to the OI-6000 power terminal block located on the back of the control board. Refer to the following instructions for how to wire your device: On the GEN II Model OI-6000 Detector: 1.
  • Page 15 To utilize the added functionality of the device, additional wiring is necessary. If an Otis Monitor is not used, the OI-6000 can be powered from any +12 to +35 VDC power supply that is capable of supplying at least 250 mA.

  • Page 16: Connecting 4-20 Ma Output

    To utilize the 4-20 mA wired data output feature of the OI-6000, you will need to connect the signal cable from your Otis Monitor sensor terminal block to the OI-6000 power terminal block located on the control board. Refer to the following instructions for how to wire your device: On the GEN II Model OI-6000 Detector: 1.
  • Page 17 INSTALLATION AND STARTUP OTIS MONITOR OI-6000 SENSOR TERMINAL POWER TERMINAL +12 to +35 VDC WHITE +12 to +35 VDC WHITE BLACK BLACK 4-20 mA GREEN 4-20 mA GREEN OI-6000-X-X-X-L-X-C OPS_GUIDE_REV 1.1...

  • Page 18: Connecting Rs-485

    The OI-6000 supports Modbus RTU over a RS-485 link. To integrate your device with RS-485 Modbus data communications, you will need to connect the Modbus cable from your Otis Monitor RS-485 input terminal block to the OI-6000 RS-485 output terminal block located on the control board of the unit. Refer...
  • Page 19 BROWN NOTICE If an Otis Monitor is not used, the OI-6000 can be connected to a Programmable Logic Controller (PLC) for RS-485 Modbus data communications. For integration and setup, refer to the Modbus Register Map found in Appendix C of this manual.

  • Page 20: Connecting Piezo Alarm

    INSTALLATION AND STARTUP 2.3.5 CONNECTING PIEZO ALARM The OI-6000 comes with the piezo alarm already wired from the factory. The following instructions should be used if the piezo needs to be replaced due to damage in the field. NOTICE The piezo alarm output can alternately be used as a wet contact relay output. The maximum current that can be drawn from the piezo alarm terminal is 500 mA, the voltage will match the DC voltage supplied to the unit.

  • Page 21: Connecting The Fault Terminal

    INSTALLATION AND STARTUP 2.3.6 CONNECTING THE FAULT TERMINAL The fault terminal is used to provide indication of a device failure. The fault terminal is shipped configured as a normally-closed (NC), or fail-safe, configuration, terminating power to the external fault device when prompted, this behavior cannot be changed.

  • Page 22: Configuring The Light Colors And Piezo Alarm Activation

    INSTALLATION AND STARTUP 2.3.7 CONFIGURING THE LIGHT COLORS AND PIEZO ALARM ACTIVATION The integrated LED light ring and piezo alarm allow this OI-6000 to be a fully contained sensor assembly with alarms. On the “L” model the color of the LEDs for each Alarm and Fault event are configurable from 1 of 4 color choices, the “GL”...

  • Page 23: Closing The Enclosure

    During warmup, the display will show a countdown of the time remaining until the system start-up is complete. The Otis logo and the unit information will also show on the display screen during start-up. At the end of the countdown, the device will be in normal operating mode.

  • Page 24: Normal Operating Mode

    INSTALLATION AND STARTUP 2.5 NORMAL OPERATING MODE During normal operating mode, the OI-6000 continuously samples the air and updates the measured concentration of the target gas on the display screen. The display, when in normal operation, appears as shown below. ④...

  • Page 25: Product Settings And Configuration

    The alarm test simulates a gas level reading, indicating the presence of a toxic gas at the sensor. The alarm test is used to ensure the proper functionality of the relay settings on the Otis monitor. The test can also be used to simulate emergency/safety drills onsite.

  • Page 26: Performing The Alarm Test

    3. Press the MENU button to advance to the System Information screen. 3.2 NETWORK ID The Network ID is used to synchronize the communication between the Otis Monitor and Sensor Assembly: ◼ There are 52 networks available with the GEN II 900 MHz radio.

  • Page 27: System Information

    PRODUCT SETTINGS AND CONFIGURATION 3.3 SYSTEM INFORMATION The system information screen allows the end-user to view the following information: The status of the radio link (Only present if radio module is installed) ◼ The scale of the sensor element. ◼ ◼...

  • Page 28: Unit Information

    PRODUCT SETTINGS AND CONFIGURATION 3.5 UNIT INFORMATION The unit information screen allows the end-user to view the following information: The number of missed radio transmissions to the monitor (Only present if radio module installed) ◼ The date of manufacture of the sensor assembly. ◼...

  • Page 29: Latching And Non-Latching Alarm Settings

    PRODUCT SETTINGS AND CONFIGURATION 3.7 LATCHING AND NON-LATCHING ALARM SETTINGS Alarm 1 and Alarm 2 can be set to latching or non-latching. Alarms set to non-latching will automatically deactivate when the detected gas level falls below the corresponding alarm setting. Conversely, latching alarms, once activated, MUST be manually reset at the device, regardless of the change in gas detection level readings.

  • Page 30: Alarm 2: Latching/Non-Latching Setting

    PRODUCT SETTINGS AND CONFIGURATION 3.7.2 ALARM 2: LATCHING/NON-LATCHING SETTING 1. Use the ADD and SUB buttons to toggle between the “UnLatch” and “Latch” options. 2. Press the MENU button to select the desired setting and to advance to the calibration method setting screen.

  • Page 31: Modbus Address Setting

    1 to 255. Eight of the addresses are used for internal system settings, leaving addresses 1 to 247 available for your device. The RS-485 Modbus communication parameters used in Otis devices is 8 data bits, no parity, and 1 stop bit; these parameters are fixed and cannot be changed. The floating point data values are presented with the least significant bytes first.

  • Page 32: Modbus Baud Setting

    OI-6000 MUST match the baud rate setting on the attached Otis Monitor, or other Modbus device. All Otis devices have factory default Modbus baud settings of 9600 bps. The RS-485 Modbus communication...

  • Page 33: Ma Offset Settings

    Setting the 4-20 mA offset allows the end-user to calibrate the sensor’s analog output. Upon installation of the device, if the detected gas reading on OI-6000 does not correspond to the reading on the Otis Monitor, or other monitoring device, the zero offset (4 mA) and the full-scale offset (20 mA) can be adjusted on the unit.

  • Page 34: Full-Scale Offset Setting

    1. Use the ADD and SUB buttons to increase and decrease the full-scale offset, respectively, until the Otis Monitor reads the full scale value for that channel. 2. Press the MENU button to save the desired setting and to advance to the display screen contrast setting screen.

  • Page 35: Return To Factory Default Settings

    PRODUCT SETTINGS AND CONFIGURATION 3.13 RETURN TO FACTORY DEFAULT SETTINGS Returning the OI-6000 to its factory default settings will reset all customization of the device, including the null and calibration settings of the sensor element. OI-6000 Product and Configuration Factory Default Settings Configuration Setting Relay Test...
  • Page 36 PRODUCT SETTINGS AND CONFIGURATION 1. Press the ADD button to select “Yes” to return the device to its factory default settings and to advance to the return to factory default settings confirmation screen. If you do not wish to return the device to its factory default settings, press the SUB button to select “No”...

  • Page 37: Reset Null & Calibration Values

    PRODUCT SETTINGS AND CONFIGURATION 3.14 RESET NULL & CALIBRATION VALUES Resetting the null and calibration settings of the sensor element will allow the currently stored null and calibration values to be rest without having to reconfigure all of the other operational settings like with the Return to Factory Defaults option.

  • Page 38: Operation Settings

    During the 1-minute warmup, the display will show a countdown of the time remaining until the system start-up is complete. The Otis logo and the unit information will also flash on the display screen and, at the end of the countdown, the device will be in normal operating mode.

  • Page 39: Sensor Calibration

    4.2 SENSOR CALIBRATION Calibration is the process of evaluating and adjusting the precision and accuracy of measurement equipment. Although Otis calibrates every device at the factory, for best accuracy, the detector SHOULD be calibrated in the environment where it is installed.
  • Page 40 OPERATION SETTINGS 3. Press the ADD button to select “Yes” to confirm that the sensor is in clean air and to begin nulling the sensor. If the sensor is not in clean air, press the SUB button to select “No” to discontinue the null process and to return to the previous screen.

  • Page 41: Calibrating The Sensor (Manual Cal)

    OPERATION SETTINGS 4.2.2 CALIBRATING THE SENSOR (MANUAL CAL) You should ONLY perform the calibration of the sensor after the null process has been completed. For best results, use 50% of the sensor scale of your target gas in an air balance with a flow rate of 0.25 to 0.5 LPM.

  • Page 42: Calibrating The Sensor (Auto Cal)

    OPERATION SETTINGS 4.2.3 CALIBRATING THE SENSOR (AUTO CAL) You should ONLY perform the calibration of the sensor after the null process has been completed. For best results, use 50% of the sensor scale of your target gas in an air balance with a flow rate of 0.25 to 0.5 LPM.
  • Page 43 OPERATION SETTINGS 6. Attach the tubing on the Calibration Adapter Kit to the regulator on the calibration gas bottle. 7. Ensure that the gas is flowing and press the MENU button to begin calibrating the sensor, the unit will automatically begin the calibration process, the amount of time on the timer will vary based on the gas type.

  • Page 44: Sensor Alarm Settings

    OPERATION SETTINGS 4.3 SENSOR ALARM SETTINGS The OI-6000 has two alarm settings: LOW alarm and HIGH alarm. All alarm set-points are field adjustable up to 60% of the full scale gas concentration. The factory default setting on the OI-6000 for the LOW alarm is 10% of full scale and 15% of full scale for the HIGH alarm.

  • Page 45: Sensor Low Alarm Rise/Fall Setting

    OPERATION SETTINGS 4.3.2 SENSOR LOW ALARM RISE/FALL SETTING 1. Use the ADD and SUB buttons to select between activation on a Rising or a Falling gas level, respectively. 2. Press the MENU button to save the desired setting and to advance to the sensor HIGH alarm setting screen.

  • Page 46: Sensor High Alarm Rise/Fall Setting

    OPERATION SETTINGS 4.3.4 SENSOR HIGH ALARM RISE/FALL SETTING 1. Use the ADD and SUB buttons to select between activation on a Rising or a Falling gas level, respectively. 2. Press the MENU button to save the desired setting and to advance to setting the radio address (if you have a radio module installed), otherwise you will return to Normal Operating Mode.

  • Page 47: Manual Reset For Activated Latching Alarms

    OPERATION SETTINGS 4.5 MANUAL RESET FOR ACTIVATED LATCHING ALARMS Alarms set to latching will not deactivate until the alarms are manually reset at the device. When latching alarms have been activated, refer to the following instructions for how to manually deactivate the alarms on your device: 1.

  • Page 48: Product Maintenance

    5 PRODUCT MAINTENANCE 5.1 SCHEDULED MAINTENANCE Otis recommends that our equipment be calibrated a MINIMUM of every 90 days, and STRONGLY advise that calibration be performed every 30 days. Without knowing the specific application, sensor assembly location, gas exposure and other factors, the company recommends monthly calibrations – assuming no damage or potential damage has occurred to the sensor and that there has not been a power outage to the sensor assembly.

  • Page 49: Sensor Replacement

    The sensor elements used in the OI-6000 detects gas in either % or PPM concentrations, this element must be fully functional in order for the system to operate correctly. Otis recommends replacing the sensing element whenever a slow response to gas is observed during the normal calibration process. After replacing the sensing element the device MUST then be nulled and calibrated for proper operation of the device.

  • Page 50: Product Troubleshooting

    APPENDICES 5.3 PRODUCT TROUBLESHOOTING OI-6000 Fault Codes Problem Cause(s) Solution(s) 1. The control board has lost communication with 1. Check connection between the sensor the digital sensor interface adapter board. housing connector header and the digital Check sensor interface adapter board plug-in. Sensor 2.

  • Page 51: Product Replacement Parts And Accessories

    While not all of the components on the OI-6000 can be field-replaced, there are several parts that are replaceable by an Otis Approved Service Technician. To purchase accessories/replacement parts for your device, contact the sales representative of this product for assistance.
  • Page 52 INTRODUCTION TO 4-20 mA CURRENT LOOP SIGNALS APPENDIX B: MODBUS COMMUNICATIONS APPENDIX C: MODBUS REGISTER MAP APPENDIX D: OTIS INSTRUMENTS PRODUCT WARRANTY STATEMENT APPENDIX E: INFORMATION ABOUT RMA SERVICE REPAIRS APPENDIX F: INFORMATION ABOUT RMA RETURNS FOR CREDIT OI-6000-X-X-X-L-X-C OPS_GUIDE_REV 1.1...

  • Page 53: Appendix A: Introduction To 4-20 Ma Current Loop Signals

    20 mA the highest. The relationship between the current loop and the gas value is linear. In addition, Otis devices use values below 4 mA to indicate special status conditions, as shown below:...
  • Page 54 APPENDICES Sensor Element Scale Ranges Sensor Type Gas Type Formula Range Electrochemical (EC) Hydrogen Sulfide 0-100 PPM Electrochemical (EC) Hydrogen Sulfide (High Range) H2S2K 0-2000 PPM Electrochemical (EC) Sulfur Dioxide 0-20 PPM Electrochemical (EC) Oxygen 0-25 % Electrochemical (EC) Carbon Monoxide 0-1000 PPM Electrochemical (EC) Chlorine...

  • Page 55: Appendix B: Modbus Communications

    Based on the type of circuit used, there is a limit on how many devices that can be connected to a Modbus sensor network. Otis Monitors currently allow a maximum of 32 devices on a single network. The data is transferred along the Modbus network at a specified Modbus baud, or rate of speed.
  • Page 56 APPENDICES The signal wire of each unit is run to the signal terminal of the neighboring sensor. With each device connected to the previous device via the signal wire, a “chain” is created, with the first device in the chain directly connected to the monitor. RS-485 Modbus Connection Distances for Electrical Wiring Distance Length...

  • Page 57: Appendix C: Modbus Register Map

    APPENDICES APPENDIX C: MODBUS REGISTER MAP OI-6000 MODBUS REGISTER MAP Register Register Address Address Data Description Length Unit Valid Response(s) (Hex) (Dec) Gas Reading FLOAT Numerical Gas Reading Modbus Address UINT 0 – 247 Gas Type ENUM 0 – 26, see below Unit Type ENUM 0 –...
  • Page 58 APPENDICES OI-6000 MODBUS REGISTER MAP ENUMERATION KEYS Register Address 4: Gas Type Response Fault Type No Fault Loss of Communication with Sensor Response Gas Type Board H2S – Hydrogen Sulfide Loss of Communication with Sensor SO2 – Sulfur Dioxide Element/Housing O2 –...

  • Page 59: Appendix D: Product Warranty Statement

    Otis’ published guidelines; (f) damage, caused by service performed by anyone who is not a representative of Otis or who is not an Otis authorized service provider; (g) damage, caused by product modifications, alterations of functionality or capability; (h) defects, caused by normal wear and tear or otherwise due to the normal aging of the Otis product, or (i) any product in which a product-labeled serial number has been removed, defaced, or altered in any way.
  • Page 60 Otis Warranty service, at their discretion, will (a) repair the device using new or previously used parts that are equivalent to new in performance and reliability, (b) replace the Otis Product with a device that is at least functionally equivalent to the Otis product and is formed from new and/or previously used parts that are equivalent to new in performance and reliability, or (c) exchange the Otis Product for a refund of your purchase price, when an Otis Product is submitted.

  • Page 61: Appendix E: Information About Rma Service Repairs

    (i.e. magnetic switches, resistors, capacitors, relays, etc.). There is no charge for RMA Service repairs that are within the specified warranty period. For a copy of the Otis Instruments, Inc. Product Warranty Statement, please visit our website at www.otisinstruments.com/official_statements. Products/parts that are not within the specified warranty period will result in a charge to the customer for service.
  • Page 62 APPENDICES INTERNATIONAL RMA SERVICE REPAIRS The customer is responsible for complying with all import/export requirements for shipment of RMA/Service repairs to Otis Instruments, Inc. OTIS INSTRUMENTS RMA SERVICE DEPARTMENT Otis Instruments / Repairs 301 South Texas Ave. Bryan, Texas 77803 Office: 979.776.7700...

  • Page 63: Appendix F: Information About Rma Returns For Credit

    IMPORTANT INFORMATION All RMA Returns for Credit must be shipped to OTIS Instruments / RMA Returns, 301 S. Texas Avenue, Bryan, Texas 77803. Product/part returns must be in their original condition and packaging, as shipped from the manufacturer. Returns that do not meet these specifications will be rejected for return for credit.
  • Page 64 Otis Instruments 301 S. Texas Avenue, Bryan, Texas 77803 Tel: 979.776.7700 Fax: 979.776.7719 sales@otisinstruments.com service@otisinstruments.com www.otisinstruments.com...

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Oi-6000-gl-c series

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