Detcon CX-DM User Manual

Model CX-DM CX-DM Toxic Gas Sensors CX-DM O2 Deficiency Sensors Operator’s Installation and Instruction Manual Covers all Model CX-DM Sensors

Model CX-DM 6-32 tappedground point3.4534 NPT Port4.2Ø0.4 X 0.475"mountingholesSplash Guard AdapterSplash GuardITM Assembly11.18&

Model CX-DM CAUTION Do not apply system power to the sensor until all wiring is properly terminated (Section 2.7). 2.6 Field Wirin

Model CX-DM mA(+)(-)Wiring toSensor AssemblyRedGreenBlackExplosionProofJunction Box(+)mA(-)Wiring toControllerRedGreenBlackDetcon Inc.

Model CX-DM BAmAV-V+BlackRedGreenBlueWhiteWhiteBlueGreenRedBlackTo SensorCustomerWiringFerriteBead Figure 9 Terminal Interconnect N

Model CX-DM Material Requirements • Splash Guard with integral Cal Port and with Wind Guard (Detcon PN 613-120000-700) -or- • Thre

Model CX-DM NOTE The wind guard must be used during calibration with the integral cal port to ensure proper calibration. 2. Remov

Model CX-DM Figure 11 Magnetic Programming Switches NOTE While in Program Mode, if there is no magnetic switch interaction after 4

Model CX-DM Set Autospan Level Set Modbus ID Bump Test Restore Defaults Software Flowchart decLEGEND:PGM1 - Program Switch Location

Model CX-DM combustible gas levels, re-calibration should be considered. Unless otherwise specified, span adjustment is recommended at

Model CX-DM sensor is in-calibration mode. This bit will remain set until the program returns to normal operation. 3. The ITM wil

Model CX-DM This page left intentionally blank Model CX-DM ii

Model CX-DM AutoSpan consists of entering Calibration Mode and following the displayed instructions. The display will ask for the app

Model CX-DM 3.4 Program Mode Program Mode provides menus to check and set operational and configuration parameters of the sensor.

Model CX-DM • Temperature ##C From the View Sensor Status text scroll, hold the magnet over PGM1 or PGM2 until the "►&quo

Model CX-DM Apply span gas to the sensor in accordance with Section 0. The sensor will respond to the gas testing the sensor respons

Model CX-DM Swipe the magnet over PGM2 to increase or PGM1 to decrease the hexadecimal number until the desired ID is displayed. Hold

Model CX-DM 4. Modbus™ Communications Model CX-DM sensors feature Modbus™ compatible communications protocol and are addressable v

Model CX-DM Table 2 CX-DM Register Map Register Name R/W Meaning Units 40000 CX-DM-100 Device Type R = 42 40001 Range R/W Detecta

Model CX-DM Bit 4 – Reserved Bit 3 – Reserved Bit 2 – Temperature Fault Bit 1 – Auto Span Fault Bit 0 – Global Fault

Model CX-DM 5. Service and Maintenance Calibration Frequency In most applications, monthly to quarterly span calibration intervals w

Model CX-DM 1. Use a 1/16" Allen wrench to release the locking setscrew that locks the ITM and splashguard adapter assembly to

Model CX-DM Table of Contents 1. Introduction ...

Model CX-DM 1. Disconnect the sensor wire connections from the terminal board, taking note of the wire connections. 2. Use a wrenc

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

Model CX-DM • Check for obstructions affecting cal gas hitting sensor face (including being wet, blocked, or corroded). H2S sensors

Model CX-DM 7. Customer Support and Service Policy Detcon Headquarters Shipping Address: 4055 Technology Forest Blvd, The Woo

Model CX-DM 7.2 CX-DM Sensor Warranty Plug-in Sensor Warranty Detcon Inc. warrants, under normal intended use, each new plug-in sens

Model CX-DM 8. Appendix 8.1 Specifications System Specifications Sensor Type: Continuous diffusion/adsorption type 3-E

Model CX-DM Width: 2.2 inches (55 mm) Weight: 2.5 lbs (1.2 Kg) Mechanical Connection: ¾” Male NPT threaded connectio

Model CX-DM Gas GasName Part Number1 Response Time (seconds) SpanDrift Temperature Range °C Humidity Range% Warranty HF Hydrogen F

Model CX-DM 8.3 Interference Table Reference Table 4 Interfering Gases to match the interfering gas symbol with the gas name. Then r

Model CX-DM Table 5 Cross Interference Table Gas C2H30 C2H2 C3H3N Alcohols Amines NH3 AsF3 AsF5 AsH3 BF3 Br2 C4H6 Buten-1 C2H3O n/a

Model CX-DM 8.1 Specifications ...

Model CX-DM Table 5 Cross Interference Table (pg.2) Gas CO2 CS2 CO COS CL2 CLO2 CLF3 B2H6 C2H6S Si2H6 C3H5OCL C2H5OH F2 C2H3O n/d 40=

Model CX-DM Table 5 Cross Interference Table (pg.3) Gas C2H4 C2H4O CH2O GeH4 N2H4 C-H's C-H's (U) H2 HBr HCL HCN HF I2 C

Model CX-DM Table 5 Cross Interference Table (pg.4) Gas HSe H2S C3H8O CH4 CH3OH C4H8O CH3SH NO N2 NO2 O3 COCL2 PH3 C2H3O n/d n/d n/d

Model CX-DM Table 5 Cross Interference Table (pg.5) Gas PF3 SiH4 Si SiF4 SO2 C4H8S C4H4S C6H5CH3 WF6 C4H6O2 C2H3CL C2H5SH C6H5CH3

Model CX-DM 8.4 Spare Parts, Sensor Accessories, Calibration Equipment Part Number Spare Parts 92C-240400-000 CX-DM-H2S Intelligent

Model CX-DM 1. Introduction 1.1 Description Detconꞌs CX-DM sensor for toxic gas and O2 deficiency are non-intrusive sensors

Model CX-DM 1.2 Modular Design The CX-DM sensor assembly is completely modular and is composed of four parts (Figure 3). 1. CX-DM

Model CX-DM Figure 5 Plug-in Sensor 2. Installation 2.1 Hazardous Locations Installation Guidelines for Safe Use 1. Install th

Model CX-DM 11. The CXT-DM may be used as an oxygen deficiency sensor; the CXT-DM must not be used for detecting oxygen concentratio

Model CX-DM Additional Placement Considerations The sensor should not be positioned where it might be sprayed or coated with surfac