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Gas transmitter - ADOS LCTR 903

The gas transmitter ADOS GTR 196 is suitable for continuous measurement of gases in normal areas and areas where there is a risk of explosion.
By employing 5 different types of sensor, noxious, explosive and non-combustible gases and vapours can be measured.
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.

TypeTGSVQGOW
Measurement methodSemiconductorHeat reductionThermal conductivity
Measurement range

ppm ranges to 100 % LEL

ppm ranges to 100 % LEL

from 0-5 Vol % to 0-100 Vol %

Percentage error of f.s.d.±5 %±3 %±5 %
Temperature range-25 °C to +55 °C-25 °C to +55 °C-25 °C to +55 °C
Temperature effect3 %2 %3 %
Response time (t90)approx. 55 sec.approx. 40 sec.approx. 55 sec.
Pressure effect (atm.)1 %1 %1 %
Mounting positionoptionaloptionaloptional
ApplicationPoisonous, combustible and explosive gases in the LEL regionPoisonous, combustible and explosive gases in the LEL regionGases exhibiting substantial differences in thermal conductivity, compared to air
Versions availableindustrial (Al), industrial (VA)- and Ex-versionindustrial (Al), industrial (VA)- and Ex-versionindustrial (Al), industrial (VA)- and Ex-version
Service life of the sensorunlimited, when used for gases not causing catalytic poisoningunlimited, when used for gases not causing catalytic poisoningunlimited, when used with gases that do not attack aluminium, rhenium-tungsten or gold
Supply voltage15 – 30 V15 – 30 V15 – 30 V
Interfaces3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s

3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s

3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s
Protection

II 2 G

Ex demb [ia] IIC T

II 2 G

Ex demb [ia] IIC T6

II 2 G

Ex demb [ia] IIC T6

Ex-Version

KEMA 03 ATEX 2403 X

KEMA 03 ATEX 2403 XKEMA 03 ATEX 2403 X
Protection classIP 54IP 54IP 54

Dimensions
(W x H x D)

150 x 170 x 105 mm150 x 170 x 105 mm150 x 170 x 105 mm
Weight2,7 kg2,7 kg2,7 kg


TypeTOXIRPID
Measurement methodElectro-chemical cellInfraredPhoto-Ionisation
Measurement range

ppm ranges to 100 LEL %

0–100 % LEL CH4, C3H8, C2H2,

0–100 Vol % CH4

0–1, 2, 3, 4, 5 Vol % CO2

0 – 200 ppm to

0 – 2.000 ppm

Percentage error of f.s.d.± 3%± 2 %± 5 %
Temperature range-25 °C to +55 °C-25 °C to +55 °C-25 °C to +55 °C
Temperature effect2 %2 %3 %
Response time (t90)approx. 60 sec.approx. 45 sec.approx. 120 sec.
Pressure effect (atm.)1 %4 %1 %
Mounting positionoptionaloptionaloptional
Application

O2, CO, NH3, NO2,SO2, H2S a.o.

CH4 (Vol %; LEL) Propane (LEL) CO2 (Vol %)e.g. C7H8, C8H10 CHCl3, PH3
Versions available

industrial (Al),industrial (VA)- and Ex-version

industrial (Al),industrial (VA)- and Ex-versionindustrial (Al),industrial (VA)- and Ex-version
Service life of the sensor12 months to 5 years depending on the measuring cellapprox. 5 years12 monthss
Supply voltage15 – 30 V15 – 30 V15 – 30 V
Interfaces3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s3-wire techniques 4-20 mA or LON? 4-wire techniques, galvanically isolated, data transfer 78 kB/s
Protection

II 2 G

Ex demb [ia] IIC T

II 2 G

Ex demb [ia] IIC T6

II 2 G

Ex demb [ia] IIC T6

Ex-Version

KEMA 03 

ATEX 2403 

KEMA 03 

ATEX 2403 X

KEMA 03 

ATEX 2403 X

Protection classIP 54IP 54IP 54
Dimensions (WxHxD)100 x 180 x 80 mm100 x 180 x 80 mm100 x 180 x 80 mm
Weight1,1 kg1,1 kg1,1 kg


  • Chemical industry

  • Manufacture of paints and varnishes

  • Plastics processing plants

  • Sewage works

  • Gas-fired boiler systems

  • Liquid gas storage houses

  • Laboratories

  • Oxygen concentration measurements

  • Refineries

  • Cold storage houses (Ammonia monitoring)

  • Paint spraying booths

  • and many more.

Gas transmitter
Contact Us

0755 - 8618 3901

info@onuee.com

(0755) 8618 3040

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