CXT2 Explosion Proof Transmitter
Reliable, accurate monitoring of toxic or combustible gases in potentially explosive and harsh environments, including hazardous-rated areas.
- Single channel, internal or remote
- Remote sensor mount up to 4,000 ft / 1,219 m
- 4 - 20 mA analog or Modbus® digital outputs
- Three 5A @ 30 VDC or 240 VAC relays (available with digital internal sensor models)
Description
The CXT2 Explosion Proof transmitter is a single channel transmitter that reliably and accurately monitors toxic, oxygen, combustible, VOC or CO2 gas concentrations in potentially explosive and harsh environments, including classified hazardous rated areas. It can be connected to a controller (FCS), a control panel or a BAS / BMS / DDC system.
The colour, backlit LCD display changes with alarm status. Navigation through the menu is driven by a magnetic keypad and the user can change alarm set points, instrument configurations and enter into maintenance mode for non-intrusive calibration without opening the enclosure. The security menu allows entry of an authorization code to lock critical parameters.
It features non-volatile memory to store historical monitoring and calibration data and the real-time clock and calendar flag all alarm and calibration events. The CXT2 has the latest Smart Sensor technology and provides sensor life indications and smarter gas detection with simplified solutions and easy calibration. Optional features include an internal heater for low temperature applications.
Specifications
Target Gas
| Electrochemical Sensors (internal) | Ammonia (NH3), Carbon monoxide (CO), Chlorine (CL2), Hydrogen (H2), Hydrogen chloride, Hydrogen sulphide (H2S), Nitrogen dioxide (NO2), Oxygen (O2), Sulphur dioxide (SO2) |
| Infrared Sensors (internal) | Carbon dioxide (CO2), Butane (C4H10), Ethanol (C2H6O), Hexane (C6H14), Toluene (C7H8), Methane (CH4), Propane (C3H8) |
| Catalytic Sensors (internal or remote) | Acetylene (C2H2), Butane (C4H10), Ethylene (C2H4), Hydrogen (H2), Methane (CH4), Propane (C3H8), Pentane (C5H12) |
| PID Sensors (internal) | Acetaldehyde (C2H4O), Benzene (C6H6), Ethyl Alcohol (C2H6O), Isobutylene (C4H8), other gases may be available upon request |
Mechanical
| Enclosure | Durable cast aluminum explosion proof, IP65 or IP66 with splash guard installed Division 1 & 2, Class 1, Groups A, B, C, D |
| Weight | 2.18 kg / 4.8 lbs |
| Size | 12.7 cm x 12.7 cm / 5.0 " x 5.0" |
User Interface
| Display | 5.4 x 3.1 cm / 2.1 x 1.2 in, 64x128 pixels Backlit, LCD graphic display for gas readings, 30 minute trends or bar graph, channel status backlit colour changes |
| Front Panel | Magnetic touch pads, LED indicator lights for RX and TX communication status |
| Security Mode | Locks out critical parameters, offers password protection |
| Memory | Non-volatile E2 memory retains configuration values on power outages |
| Calibration | Non-intrusive calibration and menu navigation with magnetic wand (p/n: CET-MW) |
Input/Output
| Analog Output | Analog - 4-20 mA (3-wire 4-20 mA current source 750 ohms max with nominal 24VDC power supply) |
| Digital Output | Digital - Modbus® RS-485 master/slave ports |
| Relay | Three programmable Form C (SPDT) relays rated for 5 amp at 30 VDC or 240 VAC resistive alarm relays (optional for CXT2-D models only) |
Electrical
| Power Requirement | 10 - 30 VDC, 250 mA @ 24 VDC, 6.5 watts with relay board (all relays energized) |
| Power Consumption | Relays / RS485 Modbus Option Board: 40 mA per relay (120 mA total with all 3 energized); RS-485 use adds 20 mA |
| Wiring (digital) | VDC 4-conductor 18 - 22 AWG twisted, shielded, stranded within conduit network wiring (daisy-chain) |
| Wiring (anolog) | VDC 3-conductor 16 - 18 AWG shielded, stranded within conduit |
Environmental
| Operating Temperature | -40°C to 60°C (-40°F to 140°F) With optional Arctic Heater Smart Sensors operates down to -55°C (-67°F) |
| Operating Humidity | 5 - 90% RH non-condensing |
Certifications
| Conforms to | Class 1, Div, 1, Groups A, B, C, D; Class 1, Zone 1, Group IIC, T4 Class 1, Div, 2, Groups A, B, C, D; Class 1, Zone 2, Group IIC, T4 Models with electrochemical sensor types CL2, NH3 and NO2 are Class 1, Div 2 and come with a splash guard. RoHS compliant circuit boards |
Hazardous Area
| T Class Rating | Temperature Code T4 |
Applications
Detected Gases
Documents
Application: Ice Arenas - FCS, CGAS and CXT2
PDF • 1020 KB • Application Guides
Application: Microdistillery - cGas-SC and CXT2-A
PDF • 632 KB • Application Guides
Application: Oil Extraction - FCS and CXT2
PDF • 2.0 MB • Application Guides
Application: Waste Water Treatment Plant - FCS, CGAS and CXT2
PDF • 960 KB • Application Guides
CXT2 Explosion Proof Transmitter Brochure
PDF • 144 KB • Brochures
Controls Schematic: Distilleries - Central Panel
PDF • 1.4 MB • Controls Schematics
Controls Schematic: Distilleries - Central Panel
DWG • 1.3 MB • Controls Schematics
Controls Schematic: Distilleries - Standalone Units
DWG • 1.1 MB • Controls Schematics
Controls Schematic: Distilleries - Standalone Units
PDF • 379 KB • Controls Schematics
CXT2 Datasheet
PDF • 282 KB • Datasheets
Engineering Spec: Methane Leaks - FCS-M and CXT2-A-ICH4
DOC • 403 KB • Engineering Specs
Gas Detection Schedule: Distilleries - Central Panel
DWG • 59 KB • Gas Detection Schedules
Gas Detection Schedule: Distilleries - Central Panel
PDF • 171 KB • Gas Detection Schedules
Gas Detection Schedule: Distilleries - Central Panel
XLSX • 22 KB • Gas Detection Schedules
Gas Detection Schedule: Distilleries - Standalone Units
PDF • 170 KB • Gas Detection Schedules
Gas Detection Schedule: Distilleries - Standalone Units
DWG • 60 KB • Gas Detection Schedules
Gas Detection Schedule: Distilleries - Standalone Units
XLSX • 22 KB • Gas Detection Schedules
Calibrating a Remote CXT2
PDF • 515 KB • Guidelines
CXT Operation Manual (discontinued - replaced with the CXT2)
PDF • 1.4 MB • Manuals
CXT2 Explosion Proof Transmitter Operation Manual
PDF • 1.1 MB • Manuals
Product Spec - CXT2-A-CC3H8 Catalytic Propane Sensor
PDF • 126 KB • Product Specs
Product Spec - CXT2-D-CC3H8 Catalytic Propane Sensor
PDF • 126 KB • Product Specs
Product Spec: CXT2-A-ICO2 Infrared Carbon Dioxide Sensor
PDF • 127 KB • Product Specs
Product Spec: CXT2-D-ICO2 Infrared Carbon Dioxide Sensor
PDF • 122 KB • Product Specs
Wiring Diagram: FCS-8-M with CXT2-D
PDF • 971 KB • Wiring Diagrams
Video Library
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