Intelligent Digital Display NPN PNP Pressure Switch
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Intelligent Digital Display NPN PNP Pressure Switch

Used in hydropower, chemical industry, city water supply, accurate pressure
measurement and control of fluid.
Pressure range: 0~40MPa (0~5800 psi) 
2-way switch quantity, NPN and PNP compatible + 4~20mA
4-digit OLED display 
Button operation, shortcut button for one-click zero calibration,fast unit switching
OLED shows the current pressure
LED for node action, easy to observe
  • PTS71

  • ORR

  • ORR-PTS71-40MPa

Applications of Pressure Switch

·Metallurgy industry

·Automatic control fields 

·Automatic testing system

·Test Equipment

·Pneumatic system

Introduction of Pressure Switch

PTS71 pressure switch made by ORR’s own pressure sensor core as sensor sensitive element. Pressure transducer can be transferred liquid or gas pressure into the standard electrical output signal 4~20mA and 1 or 2 switching output, it also used for actual pressure measurement and OLED display at real time. 

Special features of Pressure Switch

·Wetted parts apply stainless steel ensure excellent corrosion resitance

·4 -digit digital OLED display

·24VDC excitation 

·Output 4~20mA, two setting points of switching output

Pressure Switch electric specification

Power supply: 24VDC(12~30VDC)

Type of switching output: 2-way switch quantity, NPN and PNP compatible + 4~20mA

Load capacity: ≤24V 1.2A.

Consumption current: ≤15mA

Electric connection: M12 

Insulation resistance: 100MΩ/250VDC

Pressure Switch construction 

Diaphragm: stainless steel 316L

Housing: stainless steel 

SpecificationsTechnical data

Measuring range

0~10kPa…   10MPa       20Mpa        40MPa
Overload pressure200%F.S.                      150%F.S.       150%F.S.
Burst pressure500%F.S.                      300%F.S.       200%F.S.
Operational modeGauge, Absolute
Measuring mediagas, liquid compatible with stainless steel
Output signal2-way switch quantity, NPN and PNP compatible + 4~20mA
Operation voltage24VDC(12~30VDC)
DisplayOLED display of 4 digits
Load capacityLoad capacity
Response time≤20ms
Operating temperature range (type)-25~+80                                                                 ℃
Storage temperature range (type)-40~+100                                                               ℃
Insulation resistance100MΩ/250VDC
Mechanical connectionG1/2 A, G1/4 A, M20×1.5, NPT1/4
IP protectionIP 67

Pressure Switch dimensions:

Pressure Switch PTS71-dimension

Pressure Switch order guide:

Pressure switch PTS71-order




Product Inquire
ORR Sensor Co., Ltd. 
Total Sensor Solution




  Add : 6# Building, No. 285 Rongxing Road, Shanghai, 201613
   Phone : +86-18917497750
   E-mail :
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