Specifications – WIKA PSA-31 User Manual

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WIKA operating instructions pressure switch model PSA-31

14018458.01 11/2011 GB/D/F/E

3. Specifications

Temperature coefficients depending on the process connection

Clamp DIN 32676, DN 32

Typical temperature coefficient of zero point

■

0 ... 20 °C

■

20 ... 80 °C

0.75 % of span / 10 K

0.45 % of span / 10 K

Typical temperature coefficient of span

■

0 ... 80 °C

0.1 % of span / 10 K

All other process connections

Typical temperature coefficient of zero point

■

0 ... 20 °C

■

20 ... 80 °C

0.7 % of span / 10 K

0.2 % of span / 10 K

Typical temperature coefficient of span

■

0 ... 80 °C

0.1 % of span / 10 K

3.6 Reference conditions
Temperature:

15 ... 25 °C

Atmospheric pressure: 950 ... 1,050 mbar

Humidity:

45 ... 75 % relative

Nominal position:

Process connection lower mount

Power supply:

DC 24 V

Load:

see "Output signal"

3.7 Operating conditions
Temperatures and humidity
Ambient temperature:

-20 ... +80 °C

Storage temperature:

-20 ... +80 °C

Rated temperature range: 0 ... 80 °C

Permissible humidity:

45 ... 75 % relative