Relative pressure transmitter CS-PT300G
absolutesiliconceramic

Relative pressure transmitter - CS-PT300G - Xi'an Chinastar M&C Limited - absolute / silicon / ceramic
Relative pressure transmitter - CS-PT300G - Xi'an Chinastar M&C Limited - absolute / silicon / ceramic
Relative pressure transmitter - CS-PT300G - Xi'an Chinastar M&C Limited - absolute / silicon / ceramic - image - 2
Relative pressure transmitter - CS-PT300G - Xi'an Chinastar M&C Limited - absolute / silicon / ceramic - image - 3
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Characteristics

Pressure type
relative, absolute
Technology
silicon, ceramic, capacitive
Output
4-20 mA, ratiometric 0,5-4,5 V
Electrical connection
M12 connector, bare wires
Supply voltage
12VDC, 5VDC
Mounting
threaded, O-ring, DIN rail
Process connection
G 1/2, NPT 1/4, G 1/4, M20 x 1,5, NPT 1/8, G 2
Fluid
for oil, for water, for aggressive media, for fuel, for air
Material
stainless steel, steel, titanium, brass
Protection level
EMC, IP67, chemical-resistant, vibration-resistant, weather-resistant
Applications
for the petrochemical industry, for OEM, for water treatment, for HVAC systems, for refrigeration circuits
Other characteristics
high-accuracy, CE, custom-made, OEM, fully-welded, silicone oil-filled
Pressure range

Max.: 50 bar
(725.19 psi)

Min.: -1 bar
(-14.5 psi)

Precision

0.5 %

Long-term stability

0.5 %

Max.: 0.75 %

Min.: 0.25 %

Process temperature

Max.: 105 °C
(221 °F)

Min.: -35 °C
(-31 °F)

Description

Product overview
The CS-PT300G is a fully welded pressure transmitter designed for refrigerant pressure measurement and control in refrigeration, air conditioning and heat pump systems. It provides industry-standard outputs and anti-condensation features for reliable operation.

Features
  • Silicon oil sensing element
  • Sealed gage (sealed reference)
  • All-welded construction (no O-rings, no leakage risk)
  • Anti-condensation design
  • Forward and reverse overvoltage protection
  • High accuracy


Applications
  • Energy storage units
  • Cold water screw units
  • Water-source heat pump units
  • Ground-source heat pump units
  • Industrial refrigeration units
  • Multi-split air conditioning systems
  • Precision computer-room air conditioning
  • Inter-row refrigeration air conditioning
  • Air-source heat pumps


Performance specifications
  • Test temperature (typical condition): 25 °C
  • Power supply: 12 VDC (for 4–20 mA) or 5 VDC (for 0.5–4.5 V ratio output)
  • Relative humidity: 45%–75%
  • Ambient atmospheric pressure: 86 kPa–106 kPa
  • Industry-standard outputs: 4–20 mA or 0.5–4.5 V (ratio)


Structure and Dimension
  • Fully welded construction with international electrical connectors and pressure ports
  • Structure and dimension drawings available on the product page


Accessories & documentation
Product page includes downloadable datasheet and manual (see product documents).

Technical specifications
  • Model: CS-PT300G
  • Brand: Xi'an Chinastar M&C Ltd
  • Sensor type: Silicon oil sensing element
  • Pressure reference: Sealed gage
  • Construction: All-welded, no O-rings
  • Outputs: 4–20 mA or 0.5–4.5 V (ratio)
  • Power supply options: 12 VDC (4–20 mA) or 5 VDC (0.5–4.5 V)
  • Anti-condensation performance
  • Intended use: Refrigerant pressure measurement for AC, refrigeration and heat pump systems
  • Note: 0 barG = 101.325 kPaA (1 atm defined as 0 bar)

VIDEO

Catalogs

CS-PT300G
CS-PT300G
1 Pages
CS-PT300G
CS-PT300G
7 Pages

Exhibitions

Meet this supplier at the following exhibition(s):

CHILLVENTA
CHILLVENTA

13-15 Oct 2026 Nuremberg (Germany)

  • More information

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    Pressure Sensor

    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.