CXT Wireless Gas Detection Sensors

Self-healing mesh network topology
Universally accepted 2.4 GHz non-licensed frequency
Low power gas detection sensors with built-in transceivers
Built-in display for gas sensor/field device HMI
Disposable battery packs

Product Information

Overview

All component parts are rated for Class 1; Division 1, Group C, D hazardous areas. These advanced field devices consist of a CXT low power gas detection sensor and wireless transceiver packaged in a single enclosure. Power is provided by a disposable “C” cell battery pack capable of continuous operation for greater than 60 days. Additional power options include a Smart Rechargeble battery with a run time of 5-6 months, a disposable “D” cell battery pack with a run time of 9 months and solar panel providing continuous operation.

Features and Benefits

Features and Benefits:

The CXT SmartWireless gas detection sensors are designed for use in mobile applications in heavy industrial environments. These low power sensors utilize one of two technologies and cover a wide range of industrial applications—electrochemical for a long list of toxic gases, infrared for combustible hydrocarbons.

Specification

CXT WIRELESS

INFRARED LEL GAS DETECTION SENSOR

SYSTEM SPECIFICATIONS

Sensor Type

Continuous diffusion/absorption

Non-dispersive Infrared Optical (NDIR) - combustible gas

sub-miniature plug-in field replaceable

Sensor Life

5 years typical

Measurement Range

0-100% Lower Explosive Limit (LEL)

Accuracy/Repeatability

±3% 0-50% LEL; ±5% 51-100% LEL

Response Time

T50 < 10 seconds, T90 < 30 seconds

Input/Output

2.4Ghz DSSS radio transmission

Safety Approvals

Explosion proof

cCSAus Class I, Division 1, Groups C, D (Tamb = 40o to + 60oC)

Class I, Zone 1, Group IIB

ATEX* Ex d ib IIB T4 Gb (Tamb = -40oC to + 60oC)

CE marking*

IECEx*

* “C” cell battery pack version only

Performance Approvals

cCSAus performance tested to ISA 12.13.01-2000 and CSA 22.2 #152

Ingress Protection

NEMA 4X

Warranty

Plug-in detector - 2 years Transmitter - 2 Years

MECHANICAL SPECIFICATIONS

Dimensions

With Stainless Steel Mini J-Box

18”H x 3.62”W x 4.3”D; 457mmH x 92mmW x 109mmD

18”H x 5.5”W x 4.3”D; 457mmH x 140mmW x 109mmD (with XP Power

20.5”H; 520mmH (with splashguard)

With Aluminum J-Box (rechargeable battery pack version)

19”H x 5.8”W x 8.5”D; 482mmH x 147mmW x 216mmD

19”H x 7.7”W x 8.5”D; 482mmH x 195mmW x 216mmD (with XP Power

Switch)

21.5”H; 546mmH (with splashguard)

Weight

6 lbs/2.72 kg (w/stainless steel j-box)

5.2 lbs/2.36 kg (w/aluminum j-box)

BATTERY SPECIFICATIONS

Battery Pack with Disposable “C” Cells (3.6V):

2 months sensor run time full function

(-55°C to +85°C; -67°F to +185°F discharge temperature).

Battery Pack with Disposable “D” Cells (3.6V):

9 months sensor run time full function

(-55°C to +85°C; -67°F to +185°F discharge temperature).

Smart Lithium Ion Rechargeable Battery:

5 months sensor run time full function

(-20°C to +60°C; -4°F to +140°F discharge temperature; -30°C intermittent).

ELECTRICAL SPECIFICATIONS

Power Input

9-30 VDC and/or

Internal battery pack with “C” size (3.6V) disposable batteries

Optional internal battery pack with “D” size (3.6V) disposable batteries

Optional Lithium Ion Rechargeable Battery Pack

Power Consumption

25mW (typical), 420mW (max)

Outdoor RF Line of Sight (with standard antenna): 1.5 miles

Interface Data Rate: 9,600bps

Throughput Data Rate: 19,200bps

RF Data Rate: 250,000bps

Transceiver Sensitivity: -102dBm

Frequency: 2.40-2.48GHz

RF Channels: 16, each 5Mz wide

Output Power: 100mW (20.5dBm) EIRP

Spread Spectrum: DSSS (Direct Sequence Spread Spectrum)

Modulation: 0-QPSK

Supported Network Topologies: Mesh, Point-to-Point

Antenna

5db Flex Whip; Screw on Radome Whip Antenna Guard Included

I/O Protection

Over-voltage, Miswiring, EMI/RFI Immunity

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature Range

-40°F to +167°F; -40°C to +75°C

Storage Temperature Range

-40°F to +167°F; -40°C to +75°C

Operating Humidity Range

0-100% RH non-condensing

ACCESSORY OPTIONS

Tripod for mounting (specify pole mount and/or leg mount brackets)

Technical Specifications for the CXT Wireless Gas Detection Sensors

Documentation

CXT-IR Wireless Detector Commercial Brochure

CXT-DM Wireless Detector Commercial Brochure

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