Address: No. 91-93, Lane 5, An Phu Ward, District 2, HCM City
Telephone: (+84) 24 6663 2426
Hotline: (+84) 961 739 336
Operation Time: all weekdays (except Sunday and National Holidays)

Endress+Hauser Absolute and Gauge Pressure Ceraphant PTC31B

Cost-effective pressure switch with oil-free ceramic sensor for measurement in gases or liquids.

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The Ceraphant PTC31B is a price-attractive pressure switch with ceramic, vacuum tight measuring cell for safe measurement and monitoring of absolute and gauge pressure. The pressure switch with compact design is extremely stable and high vacuum resistant up to 0bar abs.


  • Integrated switching electronics for decentral and economic process monitoring and control

  • Easy function check and information on site thanks to LEDs and digital display

  • Dry capacitance ceramic sensor (Ceraphire) and minimum span of up to 0 to 20mbar provide reliable insight to the process

  • High process availability for vacuum applications and applications with abrasive media


Pressure switch with ceramic sensor diaphragm for monitoring absolute and gauge pressures in gases, vapors, liquids and dusts.

  • Process connections: Threads

  • Process temperature: -25 to +100°C (-13 to +212°F)

  • Pressure: -1/0 up to +40bar (-15/0 up to +600psi)

  • Accuracy: ±0.3%


Measuring PrinciplePressure switch
CharacteristicIntelligent pressure switch with capacitive sensor, long term stable and abrasion resistant
Supply voltage10...30 VDC
Reference Accuracy0.5 %,
Platinum: 0.3 %
Long term stability0.2 % of URL/year
Process temperature-25 °C....+100 °C
(-13 °F....+212 °F)
Ambient temperature-20 °C...+70 °C
(-4 °C...+158 °F)
Measuring cell+100 mbar....+40 bar
(+1.5 psi....600 psi)
Max. overpressure limit60 bar (900 psi)
Process connectionThreads:
G1/4, G1/2,
MNPT1/4, MNPT1/2,
JIS R1/2

Communication1x PNP switch
2x PNP switch
1x PNP switch +
4...20mA analogue
Design approvalsEN 10204-3.1 Final inspection report
Cleaned from oil and grease
Cleaned for oxygen applications
Set min alarm

SpecialitiesDigital display