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ChemDAQ
®
Steri-Trac
Gas Monitor
Operation Manual
Document Number: CM-112-A-0.0.5
Copyright ChemDAQ Inc. 2019 All Rights Reserved

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Summary of Contents for ChemDAQ Steri-Trac

  • Page 1 ChemDAQ ® Steri-Trac Gas Monitor Operation Manual Document Number: CM-112-A-0.0.5 Copyright ChemDAQ Inc. 2019 All Rights Reserved...
  • Page 2 RELY ON THIS PRODUCT FOR THEIR SAFETY COULD SUSTAIN SEVERE PERSONAL INJURY OR DEATH. The warranties made by ChemDAQ Incorporated with respect to these products are voided if the products are not installed, used and serviced in accordance with the instructions in this manual. Please protect yourself and others by following them. We encourage our customers to write or call regarding this equipment prior to use or for any additional information relative to use or repairs.
  • Page 4 Our focus at ChemDAQ is customer service and we want you to know that we will work with you to solve any problems that may occur, though none are anticipated. We welcome praise about gas detection products and customer service, but we especially want to know if any problems are experienced and of course any suggestions for improvements to existing products or new products are most welcome.
  • Page 5: Table Of Contents

    DAQ ..............................14 Remote Mounted Sensor ........................14 ChemDAQ’s Installation Responsibilities .....................15 Installation of Steri-Trac and PointGard (II) Monitors in Same SystemError! Bookmark not defined. CONFIGURATION OF MONITOR ......................15 Alarm - High Level Adjust ....................... 15 Alarm - Low Level Adjust ........................ 15 Horn Volume ............................
  • Page 6: Overview Of The Chemdaq Gas Monitoring System

    Up to eight Steri-Trac monitors can be connected to a central data acquisition computer (DAQ), and each Steri-Trac monitor can support up to three remote displays. The system has been designed to be fail safe, so that in the unlikely event that one component were to fail, the rest of the system will continue to operate normally.
  • Page 7: Steri-Trac Remote Display

    Steri-Trac Remote Display If a monitor is in alarm indicating a gas leak, no-one should enter that area without adequate protective equipment until the gas leak has been rectified. In order to avoid the situation where a person must enter the hazardous location in order to read the display on the monitor, remote displays can be connected to the monitor and placed outside the room or immediate location.
  • Page 8: Chemdaq Data Acquisition System (Daq)

    DAQ manual for further information. Remote Video Display The image from the PC monitor can be mirrored on an optional ChemDAQ supplied remote video display. This is beneficial for the employees working in areas such as Sterile Processing Wrap and Pack because they can see the exact same thing as the SPD manager where they are working.
  • Page 9: Sensor Module Remote Mount

    100 feet from the monitor The Wall Box The wall box provides mechanical attachment of the Steri-Trac monitor to a wall. The wall box contains connection points for AC power wiring, a power supply which converts the AC to 15VDC, the low...
  • Page 10: Display And Horn

     Horn – The Steri-Trac includes an 85 dB horn that produces a loud cycling horn to notify users that the gas concentration is above the first alarm threshold.
  • Page 11: Installation

    Please refer to the Steri-Trac Installation Guide for a complete, step-by-step site-preparation instructions. Customer Site Preparation Responsibilities Environment The Steri-Trac monitor should be wall mounted in an environment that is between -20 to + 50 C, free from excessive vibration and away from condensing humidity. Power Supply Requirements 100 - 240 V, 0.75A, 50/60 Hz mains power must be supplied to the location where the wall box is to be...
  • Page 12: Relays

    Connection to these relays is made via the terminal block in the Monitor Wall Box, as shown in Figure 1 above. Remote Display The remote display is wall mounted via the key holes in the back. See the Steri-Trac Installation Guide mounting instructions.
  • Page 13 The Steri-Trac monitor’s internal power supply can support up to three remote displays connected in a star or daisy-chain configuration. Power and data is transmitted from the monitor to the remote display through a single power/signal cable available from ChemDAQ. See Figure 2 for the wiring diagram.
  • Page 14: Daq

    The DAQ requires external power (110/220 V, 60/50 Hz). Remote Mounted Sensor The Steri-Trac monitor is a small compact instrument, but for some applications an even smaller sensor device is required very near the source of the potential hazardous gas exposure. In these applications, the sensor can be remotely mounted and the monitor body can then by mounted nearby at a more convenient location.
  • Page 15: Chemdaq's Installation Responsibilities

    Final installation of the monitors, remote display, and DAQ, initial configuration and verification of system operation will generally be performed by ChemDAQ authorized personnel in order to ensure that the gas monitoring system is installed and functioning correctly and operating to the customer’s satisfaction.
  • Page 16: Latch

    The display will continue to show the real time gas reading whether the horn is acknowledged or not. Latch Enables configuration of the low level alarm and the High Level Alarm to latching or non-latching status. Latching means that once the alarm level is reached, the system will remain in alarm status even if the gas concentration subsequently drops below the alarm level.
  • Page 17 Note: Once you enter the configuration menu, if the monitor detects no button presses for five seconds, it will exit the menu and return to the main display. 1. Note: Once you enter the configuration menu, if the monitor detects no button presses for five seconds, it will exit the menu and return to the main display.
  • Page 18: Maintenance

    EEPROM memory in the sensor module. When the sensor module is installed in the Steri-Trac monitor body, the monitor uses this calibration coefficient to adjust the digital gain of the monitor so that the display reading reflects the actual gas...
  • Page 19 ChemDAQ’s goal is to make gas detection as simple as possible for the end user and most users much prefer to simply snap in a fresh sensor module rather than mess with on-site calibration. Furthermore, by...
  • Page 20: Cleaning

    Pittsburgh, PA 15205 Emergency Response ChemDAQ is not able to recommend specific actions to be taken in the event that the ChemDAQ Gas Monitoring System initiates an alert of a potential exposure. The emergency procedures will vary from location to location and will be described in each site’s emergency action plan as prescribed by OSHA.
  • Page 21: Troubleshooting Guide

    The Troubleshooting Table below lists the symptoms, possible causes, and recommended solutions for common problems that may be encountered with the Steri-Trac monitor. If your problem is not listed, or none of the solutions solves your problem, please contact ChemDAQ.
  • Page 22: Specifications

    SPECIFICATIONS...
  • Page 23 Ethylene Hydrogen Ozone Peracetic Oxygen Combustible Performance Oxide Peroxide Acid (LEL) (ETO) PAA) Criterion Sensor Electroch Electrochemi Electrochemi Electrochemi Electrochemi Principle emical 0 – 50 0 – 20 ppm Range 0 to 5 ppm 0-3 ppm 0-25 % vol 0-100% Accuracy Calibration 4 months...
  • Page 24 Remote Display Output RS485 Supply Voltage 100-240 VAC, .75A, 50/60 Hz Hot Swap Sensor Module Remote Mount Sensor Module Capability Local PC Connection (serial port on area monitor) RS-232, RS-485...
  • Page 25: Part Numbers

    Steri-Trac Monitor Body- Hydrogen Peroxide ST1-HMON Steri-Trac Monitor Body- Ozone ST1-OMON Steri-Trac Monitor Body- Peracetic Acid ST1-PMON Steri-Trac Intrinsically Safe Area Monitor for Ethylene Oxide ST2-ISEMON Steri-Trac Intrinsically Safe Area Monitor for Hydrogen Peroxide ST2-ISHMON Steri-Trac Intrinsically Safe Area Monitor for Ozone ST2-ISOMON...
  • Page 26: Appendix A: Remote Sensor Wiring Diagram

    APPENDIX A Remote Sensor Wiring Detail Remote Sensor Wiring Diagram To Area Monitor Thick Red Indicates power wires, 15VDC Blue Indicates Signal Wiring ( RS - 485 ) Power/Signal cable available from ChemDAQ Sens - Sens +...
  • Page 27: Appendix B: Remote Display Wiring Diagram

    Disp V + Disp Gnd Power/Signal Disp + Rx + cable available Disp - Rx - from ChemDAQ Tx - Rx - Tx + Rx + Connect Rx To Area Montor * Rx + to Disp + Rx - to Disp - * Tx Connections are for Daisy Chain Option of Remote Displays Tx + from First Display to Rx + of second in chain .
  • Page 28: Contacting Chemdaq

    CONTACTING CHEMDAQ ChemDAQ, Inc. 300 Business Center Drive Pittsburgh, PA 15205 Phone: 412.787.0202 Toll Free: 800.245.3310 Fax: 412.788.2526 For a General Informational Question, Please e-mail: info@ChemDAQ.com For a Technical Support Request, Please e-mail techsupport@ChemDAQ.com...

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