15 May 2019
15 May 2019
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Pressure switch

The Pressure Switch F01 fulfils the high requirements of the EN13849-1 Machinery Directive. This pressure switch can be used for systems with Performance Level PL d and therefore for safety-critical applications. The F01 possesses an E1 approval and can be used up to a maximum media temperature of +125 °C.


The F01 is available for pressure ranges from 10 bar to 1000 bar and has two switching outputs which switch inverted to each other. Optionally, the F01 is also available in a version with one switching and one analog output. Here, the current output is read back by the F01 to ensure that the output signal is emitted correctly. To be able to use the F01 in as many applications as possible, users can select different pressure connections. The electrical contact takes place via a 5-pole M12 connector. Through the calibration of the transmitter via the temperature, a total accuracy of 1 % FS can be achieved within a range of 0…80 °C. The maximum media temperature totals +125 °C. The stainless steel parts coming into contact with media guarantee maximum media compatibility in combination with the welded thin-film measurement cell.

F01 SAFETY is a product of
Sensor-Technik Wiedemann GmbH
All rights are reserved.


Pressure range, gauge50 … 1000 bar, other ranges available on request
Standard pressure range 50 bar 100 bar 250 bar 400 bar 800 bar 1000 bar 
Maximum allowable pressure75 bar 150 bar 425 bar 650 bar 1200 bar 1500 bar 
Linearity, pressure hysteresis and repeatability< 0.5 % FS
Overall accuracy under reference
± 1.0 %FS 0 … +85 °C / 32 … +185 °F
± 1.5 %FS −25 … 0 °C/ -13 … +32°F
± 2.5 %FS −40 … −25 °C/ -40 … -13°F
Long term stability< 0,2 % FS p.a.
Media temperature−40 … +125 °C / -40 … +257 °F
Operating temperature−40 … +85 °C/ -40 … +185 °F
Storage temperature−40 … +100 °C/ -40 … +212 °F
Voltage supply8 … 36 VDC, allowable ripple @ 50 Hz: 10 %
Output signalOption 1: Two switching outputs (PNP)
Option 2: One switching output (PNP) and one current output (4 … 20 mA)
Electronical protectionShort circuit protected, signal on GND/VCC and inverse-polarity protection
Electrical connectionM12-connector with stainless steel thread
Pressure connectionG1/4, other connectors on request
Protection classIP 67
Installation torquemax. 35 Nm
Material with medium contactEN/DIN 1.4548 / FKM
Material housingEN/DIN 1.4301
Material diaphragmEN/DIN 1.4548
Material connector1.4301 (M12 metal design)
Dimensions (H x W x D)F01 G1/4 with M12 x 1: 84 x 30 x 30 mm (wrench-size 19)
Weightapprox. 120 g
Functional safety
DIN EN ISO 13849-1PLdCat 2DC LowCCF 70 PointsMTTFd high > 100 years
MTBF (per. SN 29500)> 100 years
Safety function* 2Safe measurement of pressure and redundant output

Code: 1140203000800 PRESSURE SWITCH F01 G¼ M12

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