Gastransmitter. GTR210 Datasheet

GTR210 Datasheet PDF

Part GTR210
Description Gastransmitter
Feature e s t . 1 9 0 0 Instrumentation and Control Gastransmitter GTR 210 ADOS GmbH Instrumentation an.
Manufacture ADOS
Datasheet
Download GTR210 Datasheet





GTR210
Gastransmitter
GTR 210
e s t. 19 0 0
Instrumentation and Control
ADOS GmbH
Instrumentation and Control
P.O. Box 500 444 · 52088 Aachen · FRG
Trierer Strasse 23 – 25 · 52078 Aachen · FRG
Tel: +49 (0) 2 41 / 97 69 - 0
Fax: +49 (0) 2 41 / 97 69 - 16
info@ados.de
www.ados.de



GTR210
Gastransmitter
GTR 210
Application
The gas transmitter ADOS GTR 210 is suitable for
continuous measurement of gases in normal areas and
areas where there are risks of explosion.
By employing 6 different types of sensor, noxious,
explosive and non-combustible gases and vapours can
be measured.
Display of the measured gas concentration and the
adjustable alarm thresholds, are shown on a multi-
colour graphic display. The keyboard input is by way
of a touchpad.
A current signal is generated that is proportional to the
measured concentration of gas, which is transmitted to
an evaluation unit placed in a safe area, away from any
dangers of explosion.
The type test of the explosion-protected gas transmitter,
is completed by the KEMA.
KEMA test certificate: No.: KEMA
Type of protection: Ex d e ia mb IIC T4 Gb
Fields of Application
Chemical industry
Manufacture of paints and varnishes
Plastic processing plants
Sewage works
Gas-fired boiler systems
Liquid gas storage houses
Laboratories
Oxygen concentration measurement
Refineries
Cold-storage houses (Ammonia monitoring)
Paint spraying booths
and many more
e s t. 19 0 0
1 = Circuit voltage
2 = Heating voltage
3 = Load resistor
The TGS sensor
The TGS sensor contains a semiconductor sensor, which
is ­constructed on SnO2-sintered N-substrate.
When combustible or reducing gases are absorbed by
the surface of the sensor, the concentration of the test
gas is determined by the change in conductivity.
1 = Catalyzer pellistor
2 = Electric connections
3 = Inert pellistor
4 = Diffusion filter
The VQ sensor
The head of the VQ sensor functions on the principle
of heat ­reaction. When combustible or reducing gases
or ­vapours come in contact with the measuring ele-
ment, they are subjected to catalytic ­combustion, which
­causes a rise in temperature; this rise causes a change
in the resistance of the measuring element which is used
as a measure of the component of gas being tested.
The inert element is for compensating the temperature
and conduc­tivity of the test gas.
ADOS GmbH
Instrumentation and Control




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