Detcon CXT-IR User Manual Page 1

Model CXT-IR Operator’s Installation and Instruction Manual Covers all Model CXT-IR Sensors DETCON, Inc. 4055 Technology Forest Blvd, S

Model CXT-IR Figure 7 Smart Battery Pack Quad Battery Charger (Optional) Detcon’s Smart Battery Pack can be charged as needed using

Model CXT-IR This option offers a smaller foot print, but provides less run time than Detcon’s Smart Battery Pack. The CXT-IR sensor

Model CXT-IR 2. Installation 2.1 Hazardous Locations Installation Guidelines for Safe Use 1. Install the sensor only in areas with

Model CXT-IR 2.2 Sensor Placement Selection of sensor location is critical to the overall safe performance of the product. Six fact

Model CXT-IR The sensor should not be positioned where it may be sprayed or coated with surface contaminating substances. Painting sen

Model CXT-IR 8-32 tappedground point7.45"34 NPT Port9.5"Wall (or othermounting surface)Splash Guard AdapterSplash GuardITM

Model CXT-IR 6-32 tappedground point4.1"34 NPT Port3.64"Ø0.4 X 0.475"mountingholesSplash Guard AdapterSplash GuardITM A

Model CXT-IR If a conduit run exists, a drain should be incorporated. The drain allows H2O condensation inside the conduit run to sa

Model CXT-IR 4. Replace the junction box cover after Initial Start Up. BlackWht/BlkWht/BrnRedTo Sensor24V PowerTo ExternalReturn24V

Model CXT-IR Initial Operational Tests After a warm up period of 1 hour (or when zero has stabilized), the sensor should be checked

Model CXT-IR This page left intentionally blank Model CXT-IR ii

Model CXT-IR 3. Operation The Operator Interface of the Model CXT Series gas sensors is accomplished via two internal magnetic swit

Model CXT-IR 3.1 Operator Interface The operating interface is menu-driven by the two magnetic program switches located under the t

Model CXT-IR 3.1.1 Software Flowchart decLEGEND:PGM1 - Program Switch Location #1PGM2 - Program Switch Location #2(S) - Momentary Swi

Model CXT-IR 3.2 Normal Operation In normal operation, the ITM Display will be blank and will display the gas reading once every 10

Model CXT-IR NOTE The "◄" prompt will show that the magnetic switch is activated during the 3 second hold period. NOTE Upon

Model CXT-IR concentration is 50% of range. If a span gas containing the recommended concentration is not available, other concentra

Model CXT-IR 3.4 Program Mode Program Mode provides a View Sensor Status menu to check operational and configuration parameters. Pro

Model CXT-IR From the View Sensor Status text scroll, hold the magnet over PGM1 or PGM2 until the arrow prompt appears and contin

Model CXT-IR 3.4.4 Set Gas Factor Because of the CXT-IR sensorꞌs almost universal response to combustible hydrocarbon gases

Model CXT-IR displayed. Hold the magnet over PGM2 for 3 seconds to accept the new value. The display will scroll Factor Saved, and r

Model CXT-IR Table of Contents 1. Introduction ...

Model CXT-IR desired ID is displayed. Hold the magnet over PGM2 for 3 to 4 seconds to accept the new value. The display will scroll Ch

Model CXT-IR 4. Modbus™ TM Communications Modbus™ communication with a CXT Sensor is normally accomplished using another wireless t

Model CXT-IR Table 2 Exception Codes Exception Code Name Meaning 01 Illegal Function Unsupported function code. Only 03, 06 and 16

Model CXT-IR and the other for the CXT transceiver. For a more detailed description of the Register Map please contact Detcon. Tabl

Model CXT-IR Offset Name R/W Comment 8199 Battery Life in Percent R Smart Battery Life remaining in percent 8200 Battery Life in Minut

Model CXT-IR 4.2.2 CXT Transceiver Registers 4.2.2.1 Battery Info – Multiple Registers If a Detcon smart battery pack is connect

Model CXT-IR write (function code 06) to register 8202 with the number of seconds the network should go into low power mode. During lo

Model CXT-IR 5. Service and Maintenance Calibration Frequency In most applications, monthly to quarterly span calibration interva

Model CXT-IR 1. Remove the cover from the J-box 2. Press Tri-C Battery Holder down slightly to disengage latch and rotate counter-c

Model CXT-IR 5.2 Replacement of Plug-in Sensor NOTE It is not necessary to remove power while changing the plug-in combustible gas

Model CXT-IR 8. CXT-IR Sensor Warranty ...

Model CXT-IR 5. Use a 1/8" Allen wrench to release the locking cap head screw that locks the ITM and splashguard adapter assembl

Model CXT-IR 6. Troubleshooting Guide If the ITM detects any functional errors the ITM will display the fault. If the sensor is exp

Model CXT-IR Clearing problem Probable Causes: Failed sensor, cal gas not removed at appropriate time, problems with cal gas and deliv

Model CXT-IR 7. Customer Support and Service Policy Detcon Headquarters Shipping Address: 4055 Technology Forest Blvd, Suite 100,

Model CXT-IR 8. CXT-IR Sensor Warranty Detcon, Inc., as the manufacturer, warrants under intended normal use each new CXT-IR sensor

Model CXT-IR 9. Appendix 9.1 Specifications 9.1.1 System Specifications Sensor Type: Continuous diffusion/adsorption type

Model CXT-IR 9.2 Spare Parts, Sensor Accessories, Calibration Equipment Table 4 Spare Parts, Sensor Accessories, and Calibration Equ

Model CXT-IR 9.3 Revision Log Table 5 Revision Log Revision Date Changes Approval 1.0 5/18/12 Initial Release LBU 1.1 12/04/12 A

Model CXT-IR Shipping Address: 4055 Technology Forest, Suite 100, The Woodlands, Texas 77381 Mailing Address: P.O. Box 8067, The Wood

Model CXT-IR 1. Introduction 1.1 Description Detcon Model CXT-IR combustible gas sensors are non-intrusive “Smart” sensors designe

Model CXT-IR Figure 1 Sensor Cell Construction Principle of Operation The target gas diffuses through a sintered stainless steel fla

Model CXT-IR 1.2 Modular Design The Model CXT-IR Sensor Assembly is completely modular and is made up of four parts (Figure 3) 1

Model CXT-IR Figure 4 ITM Circuit Functional Block Diagram Program Switch #1LED DisplayProgram Switch #2Housing BottomLocking

Model CXT-IR The CXT-IR sensor utilizes a transceiver radio, based on the IEEE 802.15.4 standard. The transceiver operates at 2.4 GH