Toxalert Tox-Comb-ANA User Manual

TOXALERT

™

COMBUSTIBLE GAS MODULE MODEL TOX-COMB/ANA

APPLICATIONS

–

 Battery Charging

− Office Buildings, UPS Rooms

− Warehouses – Electric Forklift Charging

− Golf Courses – Electric Golf Cart Charging

 Compressed Natural Gas (CNG) – Vehicle Storage
 Boiler Room – Natural Gas Leaks
 Military & Commercial Airport Hangers – Jet Fuels
 Laboratories – Natural Gas
 Gasoline Storage
 Waste Water Treatment Plants
 Gas & Oil Operations
 Underground Utility Vaults/Huts

TOX-COMB/ANA

 Chemical/Petrochemical Plants

PRODUCT DESCRIPTION:

The Model Tox-Comb/ANA Combustible Transmitter/Sensor Module is designed to interface with Toxalert
Models Tox-4ANA and ToxControl controllers. It can also interface with PLC/DDC building automation
systems using standard 4-20mA loop controllers.

The Model Tox-Comb/ANA is highly reliable and very cost effective for the detection of common combustible
gas hazard applications. The module requires a three wire connection to controller which provides the nominal
24VDC power and the module sources a 4-20mA current in proportion to the combustible gas concentration.

The Model Tox-Comb/ANA can be used either indoors or outdoors. The flame arrester utilizes a patented
coating which makes it water repellent. Also, splash guard and duct mounting accessories are available.

FEATURES:

 Catalytically aided platinum bead sensor.
 0-100% LEL range.
 Poison resistant sensor standard.
 Water repellent patented sensor coating.
 Linear 4-20mA output.

 % LEL readout provided during calibration –

using any volt meter.

 Indoor or outdoor use.

 Explosion proof construction (Class 1, Div. 1,

Groups B, C, D).

TOXALERT INT’L, INC., P.O. BOX 159, MOUND, MINNESOTA 55364  952/472-4541  FAX [phone]

www.toxalert.com

MODEL TOX-COMB/ANA

SPECIFICATIONS:

SENSOR CALIBRATION

Type: Catalytically aided platinum bead Adjustments: Zero, span
Range: 0 – 100 LEL Test Points: Current, voltage, output
Response: 90% in 45 seconds
Typical Life: Three years in normal service ENVIRONMENTAL (TEMPERATURE)
Zero Drift: Less than 5% per year Operating: -40° to 185° F (-40° to 85° C)

Humidity: 0- 99% RH, non condensing

ELECTRICAL DATA CONSTRUCTION

Wiring: 3 wire non-insolated Electrical Class: Class 1, Div., Groups B, C & D
Input Voltage: 11 – 30 VDC Mounting: Conduit or flexible cable
Input Current: 200 mA at 24 VDC Physical: 7.25” x 3.5” x 3.5”
Input Power: 2.3 W (18.4 cm x 8.9 cm x 8.9 cm)
Output: 4 to 20mA signal Weight: 1.5 pounds (0.68 kg)
Loop Resistance: 800 Ohms Housing: Cast Aluminum

Partial List of Available Combustible Gases

Acetic Acid
Acetone
Acetylene
Butane
Iso-Butane
Butene-1
iso-Butyle Alcohol
ios-Butyl Benzene
Dimethylpentane
Ethane

Splash Guard

•

Calibration adaptors •Remote sensor option

•Splash guards •Duct mount kit

•Calibration kits •Remote horns & strobes

Ethyl Acetate
Ethyl Alcohol
Ethylene
Diethyl Ether
Dimethyl Ether
Heptane
Hexane
Hydrogen
Methane
Methyl Acetate

Available Accessories

Methyl Alcohol
Methylethyl Ketone
Natural Gas
Octane
Pentane
Propane
Propyl Alcohol
Toluene
Xylene
JP-4 (Jet Fuel)

Strobe Light

ToxComb/ANA Revised 11/12 2 of 2

Calibration Adaptor

CalKit

TOXALERT INT’L, INC., P.O. BOX 159, MOUND, MINNESOTA 55364  952/472-4541  FAX [phone]

www.toxalert.com