060G2049 Danfoss AKS 33 Heavy Duty Pressure Transmitter

Product Overview

The 060G2049 (060G2049) is a high-precision AKS 33 pressure transmitter specifically engineered for high-demand refrigeration and air conditioning applications. Part of the elite Danfoss Sensors group, this current-output transmitter converts measured pressure into a standard 4-20 mA signal, ensuring reliable data transmission even over long cable runs with high electromagnetic interference. The AKS 33 is designed to thrive in extreme industrial climates, handling medium temperatures from -40 to 85 deg C. Its sealed gauge reference and 33 bar overload capacity make it a critical component for monitoring suction and discharge pressures in commercial refrigeration racks, process cooling systems, and heavy-duty heat pumps where accuracy and long-term stability are non-negotiable.

Technical Configuration

The 060G2049 utilizes a specialized piezo-resistive sensing element paired with advanced internal compensation electronics. Unlike standard sensors, this model is specifically tuned for a compensated temperature range of -30 to 40 deg C, making it ideal for low-temperature refrigeration environments where thermal drift must be minimized. The electrical interface complies with the EN 175301-803-A (DIN Large B) standard, utilizing an angular connector that provides an IP65 protection rating against dust and moisture ingress. The "Sealed Gauge" pressure reference ensures that the internal sensor remains protected from atmospheric humidity and corrosive ambient air, maintaining a consistent zero point regardless of external environmental changes.

Technical Specifications

Technical FAQs

How do I wire the 060G2049 for a standard PLC analog input?

The transmitter operates on a 2-wire 4-20 mA loop. Connect the positive supply (typically 9-32 VDC) to Terminal 1 and the signal return to Terminal 2 of the angular connector. Terminal 3 is generally unused or connected to the shield/ground depending on your cabinet grounding scheme.

Why is the compensated temperature range of -30 to 40 deg C important?

This specific range is optimized for suction line monitoring in refrigeration. Within this window, the transmitter applies active corrections to eliminate errors caused by temperature fluctuations, ensuring the pressure reading remains accurate even when the sensor body is subjected to extreme cold.

What is the maximum pressure this sensor can withstand without failure?

The 060G2049 can handle an overload pressure of up to 33 bar (479 psi). Exceeding this limit may cause permanent deformation of the sensing diaphragm or lead to a calibration shift, requiring the replacement of the unit.

Engineering & Installation Guide

Moisture and Condensation Management: In low-temperature applications, condensation often forms on the sensor body. To maintain the IP65 seal, ensure the angular connector is oriented downwards so that water can drip off. Use a "drip loop" in the electrical cable to prevent moisture from being funneled directly into the connector housing.

Vibration and Pulsation Damping: If the transmitter is installed near a reciprocating compressor or high-velocity valve, it may be subject to pressure spikes and mechanical vibration. To extend the service life of the 060G2049, install it on a short capillary tube or use a damping orifice (snubber) to isolate the piezo-resistive element from high-frequency hydraulic shock.

Loop Power Calculation: Ensure your DC power supply can handle the loop resistance. The minimum voltage at the transmitter terminals must be 9 VDC when the signal is at its 20 mA peak. Account for the voltage drop across the cable and the input impedance of your PLC or controller to ensure stable signal performance.