Critical Environment Technologies Canada Inc. (CETCI) | Manufactures Gas Detectors & Indoor Air Quality (IAQ) Portable Monitors

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DST Digital Transmitter

Key Features

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RS485 digital output signal
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Wide variety of sensors for all applications
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RoHS compliant circuit boards
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Configured for four wire multidrop wiring
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Thermal resetting fuse
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LED indication for Power, Fail and Alarm
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Power requirement 24 VDC nominal
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Simple calibartion procedure

Description
Specifications
Technical Library
Product Codes
Accessories

The rugged, reliable DST digital transmitter offers a variety of sensor types to detect a wide range of gases, including solid state and electrochemical.

The standard enclosure is a rugged polycarbonate and an optional watertight polycarbonate enclosure is available to suit different applications.

DST transmitters output scaled linear signals on an RS485 communication bus, and feature a thermal resetting fuse, an LED indicator for power, alarm and fault, RoHS compliant circuit boards, and an internal “on line” LED.

Automated calibration and other maintenance procedures are simple and are easily performed in the field.

APPLICATIONS

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Parking Garages
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Repair Shops
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Ice Cleaning Machine Rooms
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Pools
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Manufacturing Plants
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and many more

Gas Types

Ammonia (NH3)	EAM
Carbon Monoxide (CO)	ECO
Combustible Gases (solid state)	SCB
Chlorine (Cl2)	ECL
Ethylene Oxide (ETO)	EET
Hydrogen (H2)	EH2
Hydrogen Sulphide (H2S)	EHS
Methane (CH4)
Nitrogen Dioxide (NO2)	END
Nitric Oxide (NO)	ENO
Oxygen (O2)	OO2
Ozone (O3)	EO3
Propane (C3H8)
Sulphur Dioxide (SO2)	ESO

Sensors

Mechanical

DST Standard Digital Transmitter
Enclosure:	Polycarbonate
Weight:	255 g (9 oz)
Size:	4.4" x 6.5" x 2.5" (113 mm x 165 mm x 65 mm)

DST-W Watertight Digital Transmitter
Enclosure:	Watertight Polycarbonate
Weight:	340 g (12 oz)
Size:	5.05” X 5.05” X 3.05” (129 mm x 129 mm x 77 mm)

Electrical

Power Requirement:	24 VDC supplied by PDC controller
Current Draw:	80 - 120 mA
Outputs:	Scaled linear digital signal RS485 communication bus
Wiring:	Daisy chain configuration only. Power - 14 gauge stranded, 2-conductor Signal - Shielded twisted pair, 18 gauge, low capacitance. Network bridge every 1,000 feet or less.
Fuse:	Automatic resetting thermal

Environmental

Operating Temperature:	-20°C to 40°C (-4°F to 104°F)
Humidity:	10 - 95% RH non-condensing

Note: Measurements above are sensor dependent.

Certifications

Carbon Monoxide (CO), Nitrogen Dioxide (NO₂) & Propane (C₃H₈)
PDC, DST-ECO, DST-END & DST-SCB for Digital Multi-Channel System

Nitrogen Dioxide (NO₂)
DST-END Nitrogen Dioxide (NO2) Transmitters for Diesel Exhaust Detection DST-END for Diesel Exhaust Detection

DataSheets

DST Datasheet

DST-W Datasheet

Operation Manual

DST Operation Manual

Application Brochure

Quick Application Guide
Quick Application Guide For Fixed Gas Detection Systems For Fixed Gas Detection Systems

Miscellaneous Files

Quick Selection Guide For Fixed Gas Detection Transmitters

DST Standard Digital Transmitter

Ammonia (NH3) electrochemical, 0-500 ppm	DST-EAM
Carbon monoxide (CO), 0-200 ppm	DST-ECO
Combustible gases (solid state), 0-50% LEL	DST-SCB
Chlorine (Cl2), 0-5 ppm	DST-ECL
Ethylene oxide (ETO), 0-20 ppm	DST-EET
Hydrogen (H2), 0-2000 ppm	DST-EH2
Hydrogen sulphide (H2S), 0-50 ppm	DST-EHS
Methane (CH4), 0-50% LEL	DST-SCB
Nitrogen dioxide (NO2), 0-10 ppm	DST-END
Nitric oxide (NO), 0-100 ppm	DST-ENO
Oxygen (O2) electrochemical, 0-25% volume	DST-OO2
Ozone (O3), 0-2 ppm	DST-EO3
Propane (C3H8), 0-50% LEL	DST-SCB
Sulphur dioxide (SO2), 0-20 ppm	DST-ESO

DST-W Watertight Digital Transmitter

Ammonia (NH3) electrochemical, 0-500 ppm	DST-EAM-W
Carbon monoxide (CO), 0-200 ppm	DST-ECO-W
Combustible gases (solid state), 0-50% LEL	DST-SCB-W
Chlorine (Cl2), 0-5 ppm	DST-ECL-W
Ethylene Oxide (ETO), 0-20 ppm	DST-EET-W
Hydrogen (H2), 0-2000 ppm	DST-EH2-W
Hydrogen sulphide (H2S), 0-50 ppm	DST-EHS-W
Methane (CH4), 0-50% LEL	DST-SCB-W
Nitrogen dioxide (NO2), 0-10 ppm	DST-END-W
Nitric oxide (NO), 0-100 ppm	DST-ENO-W
Oxygen (O2) electrochemical, 0-25% volume	DST-OO2-W
Ozone (O3), 0-2 ppm	DST-EO3-W
Propane (C3H8), 0-50% LEL	DST-SCB-W
Sulphur dioxide (SO2), 0-20 ppm	DST-ESO-W

Watertight Option

Splash guard

Metal Protective Guard

» 16 guage, clear anodized metal protective guard
» Larger size for controllers & self-contained systems
» Smaller size for analog & digital transmitters

Fixed Calibration Kit

» Full selection of calibration gases from stock
» All required calibration accessories for field and shop calibration
» Full service and calibration shop for fixed gas detection instruments