Precont® S20

Delivery Time: not specified

Polysilicon or thin-film sensor with metal diaphragm, EX-pressure switch

  • 2-wire 4-20mA with LED
  • Measuring range up to 1000bar
  • ATEX-approval



The Precont® S20 is used in all fields of proceeding and process technique.

The excellent characteristics like pressure strength, high chemical resistance, corrosion protection and insensitivity against temperature shocks allows the use in the hardest applications for the measurement of gases, steams and liquids.

The polysilicone resp. thin-film measurement sensor guarantees highest pressure ranges, good reproduceability and hysteresis, an up to 4 times overload resistance and a good long term stability.

4_20mA_2_PNP LED_Anzeige Ex_Zulassung Prozesstemperatur_125 Druck
Auxiliary power supply
output signal 4…20mA
(with display)
14,5 V…45 V DC
14,5 V…30 V DC (with Ex variant)
output signal 4…20mA
(without display)
10,5 V…45 V DC
10,5 V…30 V DC (with Ex variant)
output signal 0…10V 14,5 V…45 V DC
14,5 V…30 V DC (with Ex variant)
Supply current
2-wire 4…20mA ≤ 22mA (PNP-switching outputs in neutral)
3-wire 0…10V ≤ 10mA (PNP-switching outputs in neutral)
2xPNP-switching output
Function PNP-switching on +Vs
Output current ≤ 250mA
current limited
short circuit protected
Measurement accuracy
Characteristics deviation ≤ ±0,15 / 0,5% FS
Long term drift ≤ ±0,2% FS / year not cumulative
Temperature deviation ≤ ±0,20% FS / 10 K (Zero / Span)
(medium contact)
≥ 40 bar Steel 1.4571/316Ti
< 40 bar Steel 1.4542/630 resp. 1.4534
Process connection
(medium contact)
Steel 1.4435/316L
Connection housing CrNi-steel / PBT polybutylene terephthalate /
POM – polyoxymethylene (Delrin®)
(medium contact)
FPM – fluoroelastomer (Viton®)
EPDM – ethylene-propylene-diene monomer
Environmental conditions
Ambient temperature -40°C…+85°C
Process temperatures – 40°C…+100°C resp. +125°C
Process pressure ranges – 1 bar …1000 bar
Turn-Down 30:1
Schutzart IP65 / IP67 (EN/IEC 60529)

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User manual

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User manual

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