DANFOSS AKS 33 060G2048 Pressure Transmitter 4-20 mA

Product Overview

The 060G2048 (060G2048) is a high-accuracy industrial pressure transmitter from the Danfoss AKS 33 series, specifically engineered for precision monitoring in refrigeration and air conditioning systems. This sensor utilizes a piezo-resistive measuring principle to convert mechanical pressure into a standardized 4-20 mA current signal, providing excellent noise immunity and signal stability over long distances. The 060G2048 features a sealed gauge pressure reference and is built to withstand maximum overload pressures up to 33 bar. Ideal for use in commercial refrigeration, large-scale chillers, and industrial cooling loops, this transmitter ensures that PLC and DCS controllers receive accurate, real-time data to optimize compressor performance and safeguard system integrity.

Technical Configuration

The AKS 33 hardware platform is designed for long-term stability and resistance to the harsh mechanical stresses found in industrial plant rooms:

• Sensing Technology: Employs a robust stainless steel diaphragm and a piezo-resistive silicon sensor, offering high resistance to vibration and rapid pressure pulsations.

• Thermal Compensation: Factory-calibrated within a specialized temperature-compensated range of -30 to 40 deg C, specifically targeting refrigeration applications to eliminate measurement drift in cold environments.

• Electrical Interface: Equipped with an EN 175301-803-A angular connector (DIN plug), ensuring a secure, IP65-rated connection that is easy to service and maintain in the field.

• Rugged Housing: The laser-welded stainless steel body provides total protection against moisture ingress and ensures compatibility with a wide variety of common refrigerants.

• Signal Output: The 4 to 20 mA two-wire current loop allows for long cable runs (up to several hundred meters) without signal loss or interference from surrounding power equipment.

Technical Specifications

Technical FAQs

What is the benefit of the "Sealed Gauge" reference in the 060G2048?

A sealed gauge reference is calibrated against a fixed internal pressure (usually 1 bar) rather than fluctuating atmospheric pressure. This makes the 060G2048 exceptionally reliable for high-pressure systems where changes in altitude or local weather conditions must not interfere with the precision of the pressure reading.

Can this transmitter handle media temperatures up to 85 deg C?

Yes. While the compensated range for maximum accuracy is -30 to 40 deg C, the 060G2048 can safely operate with medium temperatures up to 85 deg C. If the medium is consistently at the high end of this range, ensure the ambient environment around the transmitter is well-ventilated to prevent overheating of the internal electronics.

Does the IP65 rating protect against high-pressure washdowns?

IP65 protects against dust and low-pressure water jets from any direction. For environments requiring frequent high-pressure steam cleaning or washdowns (IP67 or IP69K), it is recommended to install the transmitter in a protected enclosure or use a version of the AKS series specifically rated for such conditions.

Engineering & Installation Guide

• Piping Orientation: To prevent the accumulation of oil or refrigerant liquid in the sensor cavity, always mount the 060G2048 in a vertical position with the pressure port facing downwards. If mounting on horizontal lines, use a branch pipe that allows the sensor to sit at the top or side of the main flow.

• Electrical Grounding: Use a shielded twisted-pair cable for the current loop. The shield should be grounded only at the controller end to prevent ground loops. Ensure the EN 175301-803-A connector gasket is properly seated to maintain the IP65 seal and protect the electrical pins from corrosion.

• Pulsation Buffering: In systems where high-frequency pressure spikes are expected (e.g., near reciprocating compressors), install a damping orifice or a capillary tube (siphon) before the transmitter. This buffers the sensing diaphragm against mechanical fatigue and extends the service life of the unit.