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TCD3000 SiA / Si

Ideal for measurements in the process

TCD3000 Transmitter

Ideal solution for bypass measurements

TCD3000 SiA — H2 gas analyser

The compact and robust TCD3000 SiA for hydrogen detection is ideal for the precise, fast and sensitive measurement of quasi-binary gas mixtures. The measurement is based on the principle of thermal conductivity (TCD = Thermal Conductivity Detector). This technology is predestined for the measurement of gases with very different thermal conductivities, such as H2 and O2.

Advantages of the TCD3000 SiA
  • Outstanding precision and speed in hydrogen concentration measurement: The TCD3000 SiA gas analyser features an industry-leading response time of < 30 ms and a measurement range from a few ppm to 100 vol.%, specially developed for the new requirements of hydrogen infrastructure in the energy and process industries.
  • Unrivalled robustness for demanding environments: Optimised for use in humid environments, the device withstands condensate and water without damage and provides precise measurements up to a pressure of 200 bar – ideal for electrolysers, fuel cells and other hydrogen applications.
  • Maximum safety, minimum maintenance: With fast and reliable explosion level monitoring, the TCD3000 SiA significantly increases occupational safety. The device is a long-term investment with an expected service life of up to 10 years.
  • Adaptability meets economy: The extremely compact TCD3000 SiA saves space and costs. Thanks to it, a wide variety of gas mixtures can be measured without additional sample preparation – a highly efficient solution that outperforms the competition in terms of performance and price.

Available as
TCD3000 SiA – ATEX ZONE 1 II 2 G Ex db IIC T3 Gb (-40°C < Ta < +90°C)
TCD3000 Si

TCD3000 SiA specifications
Dimensions with connectors; Weight
H=80 mm, D=40 mm; G1/2"; SW36; ~250g
Power Supply
24 VDC ±25 %, 5 W
Digital Output
RS485, Baud rate 38400 / Data 8bit
Analog Output
4-20 mA, 3-wire connection
Ambient temperature range
-40°C – 90°C / 125°C
Warm-up Time
< 1 min.
Flow Rate
0 – 10 m/s
Gas pressure (absolute)
0.8 – 200 Bara
T90-Time
< 1 s
Noise
< 50 ppm
Drift at zero point
< 100 ppm per week
Repeatability
< 50 ppm
Temperature influence
< 50 ppm per 10°C
Flow Influence
< 50 ppm pro 1 m/s
Pressure Dependency (above 800 hPa)
< 50 ppm per 10hPa

All data refer to the measuring range 0,5 vol.% H2 in N2

TCD3000 SiA options
Multiple calibrations possible for one sensor
Several linearisation curves, different measuring ranges and other gas pairs can be stored on one device (manual switching)
Pressure compensation
Thermal conductivity is pressure-dependent, therefore a constant pressure must be present during the measurement. If the pressure is not constant, the error can be eliminated by an additional pressure measurement. We can provide a compensation curve on request
Customised settings possible that go beyond the technical specifications
Customised adjustment for e.g. higher gas temperatures, radioactive environments, particularly low flow rates
Higher pressure ranges
Settings for high pressure ranges >200 bar also available on request
Express delivery possible
Depending on capacity and agreement, short-term delivery also possible
Other connections e.g. NPT ½“
Standard G 1/2‘ – other connections such as NPT 1/2’ on request
Can also be ordered as Si variant without ATEX
For use outside the ATEX protection zone
TCD3000 SiA Zubehör
Schaltnetzteil
USB Konverter

TCD3000 transmitter

The more cost-effective and ATEX-free TCD3000 transmitter is particularly suitable for bypass measurements, when detection in the process is not possible or desired, and for lower flow rates. This particularly compact and robust option for hydrogen detection is also ideal for the precise, fast and sensitive measurement of quasi-binary gas mixtures. It is also based on the principle of thermal conductivity (TCD – Thermal Conductivity Detector), i.e. the technology that is predestined for measuring gases with very different thermal conductivities such as H2 and O2.

Advantages of the TCD3000 transmitter
  • High precision and speed in hydrogen concentration measurement: The TCD3000 transmitter is characterised by an industry-leading response time of < 30 ms and a measuring range from a few ppm to 100 vol.%, specially developed for the new requirements of hydrogen infrastructure in the energy and process industries.

  • Particularly robust for demanding environments: Optimised for use in humid environments, the device withstands condensate and water without damage and provides precise measurements up to a pressure of 200 bar – ideal for electrolysers, fuel cells and other hydrogen applications.

  • Maximum safety, minimum maintenance: With fast and reliable explosion level monitoring, the TCD3000 transmitter significantly increases occupational safety. The device is a long-term investment with an expected service life of up to 10 years.
  • Adaptability meets economy: The extremely compact TCD3000 transmitter saves space and costs. Thanks to it, a wide variety of gas mixtures can be measured without additional sample preparation – a highly efficient solution that outperforms the competition in terms of performance and price.

TCD3000 transmitter specifications
Dimensions with connectors; Weight
B=54 mm, H=80 mm, D=34 mm; ~500g
Power Supply
24 VDC ±25 %, 5 W
Digital Output
RS485, Baud rate 38400 / Data 8bit
Analog Output
4-20 mA, 3-wire connection
Ambient temperature range
-40°C – 90°C
Warm-up Time
< 1 min.
Flow Rate
30 – 120 l/h
Gas pressure (absolute)
0.8 – 200 Bara
T90-Time
< 1 s
Noise
< 50 ppm
Drift at zero point
< 100 ppm per week
Repeatability
< 50 ppm
Temperature influence
< 50 ppm per 10°C
Flow influence
< 50 ppm per 10l/h
Pressure Dependency (above 800 hPa)
< 50 ppm per 10hPa
All data refer to the measuring range 0,5 vol.% H2 in N2
TCD3000 transmitter options
Multiple adjustments possible for one sensor
Several linearisation curves, different measuring ranges and other gas pairs can be stored on one device (manual switching)
Pressure compensation
Thermal conductivity is pressure-dependent, therefore a constant pressure must be present during the measurement. If the pressure is not constant, the error can be eliminated by an additional pressure measurement. We can provide a compensation curve on request
Customised settings possible that go beyond the technical specifications
Customised adjustment for e.g. higher gas temperatures, radioactive environments, particularly low flow rates
Higher pressure ranges
Settings for high pressure ranges >200 bar also available on request
Express delivery possible
Depending on capacity and agreement, delivery at short notice is also possible
Other connections possible
Other connection options are available on request
Accessories for our gas analysers
Switching power supply
USB converter
Areas of application

Archigas’ advanced thermal conductivity meters offer precise solutions for safety and process applications. They measure hydrogen in electrolysis and fuel cell systems, monitor hydrogen concentrations in natural gas and are ideal for helium and hydrogen leak detection. The devices are predestined for monitoring and reducing emissions in decarbonisation projects and promote the highest product quality in various industries.

Areas of application

Archigas’ advanced thermal conductivity meters offer precise solutions for safety and process applications. They measure hydrogen in electrolysis and fuel cell systems, monitor hydrogen concentrations in natural gas and are ideal for helium and hydrogen leak detection. The devices are predestined for monitoring and reducing emissions in decarbonisation projects and promote the highest product quality in various industries.

Electrolysis

Monitoring of OEL / UEL and purity, e.g. for H2 electrolysis

Fuel cell

Monitoring the hydrogen concentration in the exhaust gas train

H2 in natural gas

Determination of the hydrogen content in natural gas networks up to 100%

Leak testing

Automated detection of leaks for monitoring

Further areas of application

Purity control, purge gas monitoring, measurement of other binary or quasi-binary gas mixtures