Ambient temperature

25 °C

Atmospheric pressure

Atmospheric (approx. 1 000 hPa)

Sample gas flow

0.6 l/min (or Nl/min)

Sample gas humidity

Dew point < -40 °C

Site of installation

Vibration- and impact-free

General information

Weight

Max. 5.2 kg (standard version)

Measuring ranges

Number of measuring ranges

Max. 4; parameters can be assigned freely

Parameters can be assigned in the measuring ranges

• Smallest possible span

CO: 0 ... 10 vpm

CO₂: 0 ... 5 vpm

CH₄: 0 ... 50 vpm

C₂H₄: 0 ... 300 vpm

SO₂: 0 ... 50 vpm

NO: 0 ... 100 vpm

N₂O: 0 ... 50 vpm

NH₃: 0 ... 100 vpm

• Largest possible measuring span

CO: 0 to 100%

CO₂: 0 to 100%

CH₄: 0 to 100%

C₂H₄: 0 to 100%

SO₂: 0 ... 100%

NO: 0 ... 30 000 vpm

N₂O: 0 to 100%

NH₃: 0 to 100%

Gas inlet conditions

Sample gas pressure

• Standard pressure (atmospheric pressure compensation)

500 to 1 500 hPa (absolute)

Pressure drop between sample gas inlet and sample gas outlet

< 10 hPa at 1.5 l/min

Sample gas flow

18 … 90 l/h (0.3 … 1.5 l/min)

Sample gas temperature

0 to 50 °C

Sample gas humidity (rel. humidity)

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

Dynamic response

Warm-up period at room temperature

< 2 h

Response characteristics

• Dead time (T₁₀)

Application-specific (max. 3.6 s)

• Signal rise time (T_r) or fall time (T_f) with application-specific electronic damping of 10 s

Application specific < 14 s

• Time for device-internal signal processing T_v

Approx. 1 s

• Delayed display T₉₀

Rule: T₉₀ < T₁₀ + T_r/f + T_v

Measuring response

Output signal fluctuation

? ± 1% of smallest measuring range acc. to nameplate

Zero point drift

< ± 1 %/week of smallest measuring range acc. to nameplate

Measured-value drift

? 1% of the current measuring range per week

Repeatability

? ± 1% of the current full-scale value

Linearity error

< ± 0.5% of the current full-scale value

Influencing variables

Ambient temperature

• Measured value

? 1% of the current measuring range/10 K (at constant receiver cell temperature)

Sample gas pressure

• Without pressure compensation

< 1.5% of the current measuring range/1% pressure variation

• With pressure compensation switched on

< 0.15% of the current measuring range/1% pressure variation

Sample gas flow

? 1% of the current full-scale value/0.1 l/min change in flow

Supply voltage

? 0.1% of the current measuring range (with the nominal range of use)

Electrical 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)¹⁾

5 to 45 °C

Relative humidity (RH) during storage, transport or operation

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

Gas connections

Connection fittings

Pipe connection with 6 mm outer diameter

Materials of wetted parts

Bushing

Stainless steel, mat. no. 1.4571

Pipe

Stainless steel, mat. no. 1.4571, O-ring: FKM (e.g. Viton) or FFKM (Kalrez)

Sample chamber

• Body

Aluminum

• Lining

Aluminum

• Window

CaF₂, adhesive: E353, O-ring: FKM (e.g. Viton)