Pressure transmitters

Pressure transmitters are used to measure system pressure and convert it into a standard output signal for monitoring, control, and protection.
In the cooling portfolio, they are positioned for air conditioning, refrigeration, food retail, transport refrigeration, heat pumps, variable refrigerant flow systems, and industrial cooling applications. In the cold room portfolio, pressure transmitters are also relevant, with AKS 2050 included as part of the wider cold room component set

Features and benefits

Precise and consistent pressure measurement for reliable system control
High reliability through hermetically sealed or welded transmitter design in key ranges
Long lifetime and strong resistance to shock, vibration, and over-pressure in the broader transmitter portfolio
Wide choice of pressure ranges, output signals, pressure connections, and electrical connections
Compatibility with Danfoss controllers in key HVACR ranges such as AKS and DST P110
Compact design options are available for demanding HVAC and industrial cooling applications
Diagnostic and scalable performance features are available in selected families such as DST P110 and DST P140
The range supports both refrigeration-focused use cases and broader industrial measuring tasks

Product types shown: 6

AKS 3000 / AKS 3050
AKS 3000 and AKS 3050 is a series of absolute transmitters with high-level signal conditioned current output, developed to meet demands in A/C and refrigeration applications.

AKS 3000 and AKS 3050 utilizes the proved piezoresistive measuring principle, which has been used for decades in Danfoss pressure transmitters.The pressure reference is a sealed gauge. This means that atmospheric pressure variations have no influence on regulating accuracy. A must in accurate low pressure regulation.

AKS 3050 with integrated pulse-snubber is designed for use in hydraulic applications with severe medium influenes like cavitation, liquid hammer or pressure peaks and offer a reliable pressure measurement, even under harsh environmental conditions.

All materials in contact with the refrigerant and materials for the housing are AISI 316L stainless steel. No soft gaskets, all environmental sealings are made through laser weldings only.

AKS 3000 and AKS 3050 has a 4 – 20 mA output, and is available with spade terminals for EN 175301-803 plug.
AKS 32 / AKS 33
AKS 32 and AKS 33 are pressure transmitters that measure a pressure and convert the measured value to a standard signal:
• 1 – 5 V DC or 0 – 10 V DC for AKS 32
• 4 – 20 mA for AKS 33

A robust design makes the AKS very suitable for application within a number of fields e.g.
• Air conditioning systems
• Refrigeration plant
• Process control
• Laboratories
AKS 32R / AKS 2050
AKS 32R is a ratiometric pressure transmitter that converts the measured pressure to a linear output signal. The output signal is relative to the supply voltage meaning that the min. pressure output will be 10% of the actual supply voltage and the max. pressure output will be 90% of the actual supply voltage.

At a supply voltage of 5 V, the output signal is:
- 0.5 V at min pressure range
- 4.5 V at max. pressure range
The robust design and the ratiometric output signal makes the transmitter suitable for systems together with ratiometric A/D converters within a number of fields:
- A/C systems
- Refrigeration plant
- CO₂ plant
- Process control
- Laboratories
DST P070
The Danfoss DST P070 series pressure transmitter is designed for demanding air conditioning and heat pump applications.
Drawn from over 30 years of experience with MEMS pressure sensing, the DST P070 offers reliable performance in a compact design.
DST P110
The Danfoss Sensor Technology (DST) P110 is a compact & cost effective pressure transmitter that uses MEMS‑based pressure sensing in a welded stainless‑steel interface compatible with all refrigerants. The integrated electronics provide diagnostic capability and stable measurement for OEM installation.
DST P310
The DST P310 pressure sensor is equipped with a powerful ARM processor enabling enhanced calibration accuracy and self diagnostic features. This hermetically sealed sensor is suitable for use with all refrigerants and can be applied to the most demanding of applications, such as :
- Chillers
- Transport refrigeration
- Commercial refrigeration
- Variable speed HVAC
- Heat pumps
- Food Retail
This flexible pressure transmitter program covers different output signals, absolute or gauge (relative) versions, measuring ranges and a wide range of pressure and electrical connections.

A robust design with an excellent vibration stability and a high degree of EMC / EMI protection equip the pressure transmitter to meet the most demanding refrigeration requirements.

Cold Rooms

Pressure transmitters help cooling and industrial systems measure and communicate pressure accurately so that controllers and safety functions can respond correctly. In refrigeration and air conditioning systems, they support precise pressure monitoring for safe and energy-efficient operation. In cold room work, they are relevant because pressure transmitters are part of the wider sensing and control layer that supports stable refrigeration performance. Beyond cold rooms, the pressure transmitters are also used across industrial applications where pressure must be measured reliably under demanding conditions.