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PS300 Electronic Pressure Switch

The electronic pressure switch is a pressure measurement switch with LED display. The isolation-based silicone oil-filled diaphragm is used as a sensing component. It has the advantages of high precision, small size, easy operation and simple installation. Therefore, it is widely used in pressure control and automatic process control systems in chemical, mechanical and electrical systems.

Application :

● Hydraulic pressure controller

● Industrial automation control

● Tank Liquid Level Control

● Petrochemical industry

● Water conservancy

● Automatic detection system

01It uses isolation silicone oil-filled diaphragm as the sensing component with high accuracy.
022 channels switch output, load capacity of 1.2 A.
03Pressure interface can rotate 330 °, which is convenient to use.
04Equipped with node action leds, convenient for observation.

electronic pressure switch

Technical Data



Pressure Range:

-1 Bar-1 Bar; 0-0.1 Bar.....1000 Bar / 0-2 Psi…15000 Psi Optional

Pressure Type:

Gauge pressure; Absolute pressure; Sealed gauge pressure; Negative pressure optional.

Safe Overload:

150% F.S.(standard)

Burst Pressure:

300% F.S. (standard)


(Linearity Hysteresis


≤ ±0.5%F.S

≤ ±0.25%F.S

Including non-lin., rep. and hys. Optional

Display Units Accuracy:

≤ ±0.1%F.S

Display Units Span:


Total Error Band:

0...50 °C max. ±0.5 %FS

-10...70 °C max. ±1.0 %FS

Long Stability:

Standard: 0.1%F.S±0.05%

Working/Storage Temp:


Tempe Compensation:


Medium compatible:

Compatible with 316 Stainless Steel or 1Cr18Ni9Ti stainless steel


Two switches output;

One switch with 4~20mA or RS485 as output signal;

Two switches with 4~20mA or RS485 as output signal


Power Supply:

12~36 V DC

Switch type:

PNP, NPN optional

Load Resistance:

<24Vdc 1.2A

Max power consumption:


Zero Temp. Drift:

0.03%FS/℃(≤100kPa),  0.02%FS/℃(>100kPa)

Body materials:

316 stainless steel (standard); 1Cr18Ni9Ti stainless steel optional

Material of diaphragm:

316L Stainless steel

Filling oil:

Silicon oil (standard); Fluorocarbon oil (Oxygen Services)

Electronic connection:

Plug: M12 (4-poles) Type IP65; M12*1-5P; DIN43650 optional

Mechanical vibration:



connect port:

G1/4’’male, G1/2’’male, 1/8’’NPT male, 1/4’‘NPT male, 1/2’‘NPT male and female optional. (by customized)


See below drawing

Water Proof:


Response time:



≥1 million cycles, 0…100 %FS at 25℃


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