Pressure Switch | Ceraphant PTC31B / PTP31B

Pressure switch for measurement and monitoring of absolute and gauge pressure

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The Ceraphant is a pressure switch for the measurement of absolute and gauge pressure in gases, vapors, liquids and dust. The Ceraphant can be used universally thanks to a wide range of approvals and process connections.

Ceramic process isolating diaphragm: The ceramic switch is an oil-free sensor, i.e. the process pressure acts directly on the robust ceramic process isolating diaphragm and causes it to deflect. A pressure-dependent change in capacitance is measured at the electrodes of the ceramic substrate and the process isolating diaphragm.

Metallic process isolating diaphragm: The process pressure deflects the metal process isolating diaphragm of the switch and a fill fluid transfers the pressure to a Wheatstone bridge (semiconductor technology). The pressure-dependent change in the bridge output voltage is measured and evaluated.

Features include:

High reproducibility and long-term stability
Customized measuring ranges
Reference accuracy up to 0.3 %

Specs at a glance

Product	Gases, vapors, liquids and dust
Output	1 × PNP, 2 × PNP, 1 × PNP + 4 to 20 mA
Display	4 digit with color change
Process temperature range	–40 to +100 °C (–40 to +212 °F)
Measuring ranges	From 0 to +100 mbar (0 to +6 psi) to 0 to +400 bar (0 to +6000 psi)

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Features include:

High reproducibility and long-term stability
Customized measuring ranges
Reference accuracy up to 0.3 %

Specs at a glance

Product	Gases, vapors, liquids and dust
Output	1 × PNP, 2 × PNP, 1 × PNP + 4 to 20 mA
Display	4 digit with color change
Process temperature range	–40 to +100 °C (–40 to +212 °F)
Measuring ranges	From 0 to +100 mbar (0 to +6 psi) to 0 to +400 bar (0 to +6000 psi)