Ambient temperature

25 °C

Atmospheric pressure

Atmospheric (approx. 1 000 hPa)

Sample gas flow

0.6 l/min (or Nl/min)

Reference gas

Nitrogen

Site of installation

Vibration- and impact-free

General information

Weight

Approx. 5.5 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 measuring spans

0.5%, 1%, 2% or 5% O₂

• Largest possible measuring span

100% O₂

Gas inlet conditions

Sample gas pressure

• Standard devices with hoses

500 … 1 500 hPa (abs.)

• Standard devices with hoses and ext. RG pump

Atmospheric pressure ± 50 hPa

• Standard devices with pipes

500 … 3 000 hPa (abs.); briefly < 5 000 hPa (abs.)

• Field module

• For non-combustible gases

500 … 2 500 hPa (abs.)

• For combustible gases up to gas mixtures which are occasionally explosive

800 … 1 100 hPa (abs.)

Reference gas pressure

• High-pressure connection

2000 hPA above sample gas pressure (within permitted reference gas pressure range 2500 to 5000 hPa, abs.)

• Low-pressure connection with external reference gas pump

100 hPa above sample gas pressure

Pressure drop between sample gas inlet and sample gas outlet

< 100 hPa at 1 l/min

Sample gas flow

18 … 60 l/h (0.3 … 1 l/min)

Sample gas temperature

0 … 60 °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

< 2 h

Response characteristics

• Display delay T₉₀ with an electronic damping setting of 0 s and a sample gas flow of 1 Nl/min.

? 1.9 s; ? 2.4 s (field module including flame arrestor)

• Dead time T₁₀

? 1.1 s; < 1.6 s (field module)

Measuring response

Output signal fluctuation with static damping constant of 0 s and dynamic noise suppression of 5% / 10 s

? ±0.5% of smallest measuring span (noise bandwidth corresponds to 1% = 6? value or 0.333% = 2? value), with vibration compensation activated: < 1.5 times the value

Detection limit

? 1% of smallest measuring span according to nameplate (with vibration compensation activated: < 1.5 times the value)

Measured-value drift

• At the zero point

? ±0.5% of the smallest span/month or ? ±50 vpm O₂/month, whichever is greater

• For span gas

? ±0.5% of the current measuring span/month or ? ±50 vpm O₂/month, whichever is greater

Repeatability

• At the zero point

? ±0.5% of the smallest measuring span/month or ? ±50 vpm O₂/month, whichever is greater

• For span gas

d? ±0.5% of the current measuring span/month or ? ±50 vpm O₂, whichever is greater

Linearity error with dry ambient air¹⁾

< 0.1%

Influencing variables

Ambient temperature

• Deviation at zero point

? 0.5% of the smallest measuring span / 10 K or ? 50 vpm O₂/10 K, whichever is greater

• Deviation of the span gas

? 0.5% of the current measuring span / 10 K or ? 50 vpm O₂/10 K, whichever is greater

Sample gas pressure

• Deviation at zero point

? 0.2% of the smallest measuring span / 1% pressure variation or ? 50 vpm O₂/1% pressure variation, whichever is greater

• Deviation of the span gas

? 0.2% of the current measuring span / 1% pressure variation or ? 50 vpm O₂/1% pressure variation, whichever is greater

Sample gas flow

• Deviation at zero point

? 1% of smallest measuring span per 0.1 l/min change in flow or ? 50 vpm O₂ per 0.1 l/min change in flow within the permissible flow range (0.3 to 1 l/min), whichever is greater

• Deviation of the span gas

? 1% of current measuring span per 0.1 l/min change in flow or ? 50 vpm O₂ per 0.1 l/min change in flow within the permissible flow range (0.3 to 1 l/min), whichever is greater

Accompanying gases

Zero point deviation (cross-sensitivity) in accordance with Table A.1 of EN 61207-3

Supply voltage

< 0.1% of the current measuring span (within the nominal range of use)

Electrical inputs and outputs

Analog and digital interfaces

See base unit

Gas connections

Connection fittings

Pipe connection with 6 mm outer diameter

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 from the installed components is to be avoided)

Materials of wetted parts

Sample chamber

Stainless steel:

• Plates: Mat. No. 1.4571 (X6CrNiMoTi 17-12-2)
• Screw-in glands: Mat. No. 1.4404 (X2CrNiMo17-12-2)

Internal gas path

• With hoses

FPM (e.g. Viton), gas connections of stainless steel material no. 14404 (X2CrNiMo 17-12-2)

• With pipes

Stainless steel:

• Pipes: Mat. No. 1.4571 (X6CrNiMoTi 17-12-2)
• Gas connections: Mat. No. 1.4404 (X2CrNiMo 17-12-2)

Sealing material

FPM (e.g. Viton) or FFKM (e.g. Kalrez 6375)

Special applications

Gas path

• With pipes

Materials adapted to the application