Operating pressure

max. 500 mbar (50 kPa

Test volume

≥ 0.1 l
≤ 4.0 l

Pressure increase by motor pump

≈ 20 mbar

Nominal voltage, Frequency

refer to type overview page 11

Rating requirement

Rating requirement

Prefuse (provided by customer)

10 A quick-acting or 6.3 A slow-acting fuse

Fuse installed in housing cover, replaceable

Microfuse 6.3 slow-blow L 250 V; IEC-127-2/III (DIN 41 662)

Switching current

Operating output VPS 504 S01, 02, 03, 04, 05: max. 4 A
Refer to motor startup current!
Interference output VPS 504 S02, 04, 05: max.1A

Degree of protection

VPS 504 S01, 02, 03: IP 40
VPS 504 S04, 05: IP 54

Ambient temperature

50 Hz 230 VAC -15°C to +70°C
others: -15°C to +60°C

Operational attitude

Suitable for use up to 2000 m above sea level

Release tme

Approx. 10 - 36 s, depending on test volume and input pressure

Sensitivity limit

max. 50 l/h
At inlet pressures of < 50 mbar, limit pressure rates well below 50 l of air per hour occur due to the mode of operation. This allows for applications involving low inlet pressures.

Switch-on duration of control

100 % ED

Max. number of test cycles

20/h. Wait for at least 2 minutes after carrying out more than 3 consecutive test cycles.

Installation position

vertical, horizontal, not upside down

Media
• Standard model

Gas families 1, 2, 3, sewage gas, landfill gas and biogas (dry, H2S < 0.1% by volume) and other gaseous media
For gases with a butane content < 60 % and gases with a density < 1 kg/m3