Ambient temperature

25 °C

Atmospheric pressure

Atmospheric (approx. 1 000 hPa)

Sample gas flow

0.6 l/min (or Nl/min)

Reference application

H₂ in N₂^*

Site of installation

Vibration- and impact-free

General

Weight

Approx. 3 kg

Measuring ranges

Number of measuring ranges

Max. 4; parameters can be assigned freely

Parameters can be assigned in the measuring ranges

• Smallest possible span

0.5% H₂ in N₂

• Largest possible measuring span

100% H₂ in N₂

• Smallest possible span with suppressed zero point

5% (e.g. 95% to 100%) H₂ in N₂

Gas inlet conditions

Sample gas pressure

700 to 1200 hPa (abs.)

Pressure drop between sample gas inlet and sample gas outlet

< 50 hPa at 1.5 l/min

Sample gas flow

30 to 90 l/h (0.5 to 1.5 l/min)

Sample gas temperature

0 to 70 °C

Sample gas humidity (rel. humidity)

< 90% (condensation inside the gas path is to be avoided)

Sample chamber temperature

Standard version

Approx. 72 °C

Time response

Warm-up period at room temperature

< 30 min (max. accuracy after 2 h)

Response characteristics

• Delay display T₉₀ with device-internal signal damping (low pass filter) of 1 s

< 2.5 s

• Dead time (T₁₀) at 1 l/min

< 0.5 s

• Adjustable signal damping range

0 to 100 s

Measuring response

Output signal fluctuation with device-internal signal damping of 1 s

? ± 0.5% of the smallest span acc. to nameplate (? < ± 8.33 vpm H₂)

Detection limit

? 1% of the smallest measuring span according to nameplate

Measured-value drift

? ± 1%/week of smallest span according to nameplate or ? 50 vpm H₂ / week, whichever is greater

Repeatability

? ± 1% of the current measuring span or 100 vpm H₂

Linearity error

? ± 1% of the current measuring span or 100 vpm H₂

Influencing variables

Ambient temperature

? ± 0.5%¹⁾/10 K of the current measuring span or ? ± 50 vpm H₂ / 10 K

Sample gas pressure

? ± 0.5 %¹⁾ of the current measuring span/1% pressure variation or ? ± 50 vpm H₂ / 1% pressure change

Sample gas flow

? ± 0.2% of the smallest possible measuring span with a change in flow of 1 dl/min within the permissible flow range

Accompanying gases (interference gases)

The interference gas sensitivity depends on the application and must be determined in each case except for applications with blast furnace gas / converter gas / wood gasification (pre-adjusted).

Supply voltage

? ± 0.1% of full-scale value (within the nominal range of use)

Electrical inputs and outputs

Analog and digital interfaces

See base unit

Climatic conditions

Storage and transport

-30 to 70 °C

Permissible ambient temperature (during operation in base unit)²⁾

0 to 50 °C

Relative humidity (RH) during storage, transport or operation

< 90% (condensation on the installed components is to be avoided)

Gas connections

Connection fittings

Pipe connection with 6 mm outer diameter

Materials of wetted parts

Gas connection

Stainless steel material no. 1.4571

Clamping rings and union nut (set)

Stainless steel material no. 1.4401

Sample gas pipes

Stainless steel material no. 1.4404

Sensor mounting block

Stainless steel material no. 1.4571

Sensor

Si, SiO_xN_y, Au, epoxy resin, glass

Gasket, contained in the sensor module

Perfluorelastomere FFKM