060G2109 Danfoss AKS 33 Refrigeration Pressure Transmitter

Product Overview

The 060G2109 (060G2109) is a high-precision pressure transmitter from the Danfoss AKS 33 series, specifically engineered for commercial and industrial refrigeration applications. This robust sensor converts measured pressure into a standard 4 to 20 mA current signal, facilitating seamless integration with PLC systems and electronic controllers. Designed to perform in the harshest environments, the 060G2109 features a sealed gauge reference and is highly resistant to moisture, temperature fluctuations, and vibration. Whether utilized in air conditioning units, cold storage facilities, or chiller plants, this transmitter ensures precise suction or discharge pressure monitoring, which is critical for optimizing compressor performance and preventing system-wide failures due to refrigerant leaks or mechanical overpressure.

Technical Configuration

The AKS 33 series is built to provide reliable data in demanding HVAC-R circuits where signal stability is paramount.

• Signal Integrity: The 4 to 20 mA output signal is highly resistant to electromagnetic interference, ensuring accurate data transmission even over long cable runs in industrial machine rooms.

• Environmental Resilience: With an IP65 enclosure rating and a wide medium temperature range of -40 to 85 deg C, the sensor handles extreme cold and heat without compromising structural integrity.

• Electrical Interface: Features an angular connector compliant with EN 175301-803-A, providing a secure, standardized connection that simplifies field replacement and maintenance.

• Pressure Safety: The unit is rated for a maximum overload pressure of 40 bar (580 psi), offering a significant safety margin against pressure spikes within the refrigerant loop.

• Advanced Compensation: Includes internal temperature compensation between -30 and 40 deg C to ensure that thermal drift does not affect the accuracy of the pressure readings.

Technical Specifications

Technical FAQs

Is the 060G2109 compatible with all common refrigerants?

Yes, the AKS 33 series is designed to be compatible with most CFC, HCFC, and HFC refrigerants. However, for specialized or highly corrosive media, engineers should verify the compatibility of the internal sensing element and O-ring materials with the specific chemical composition.

What is the benefit of the "Sealed Gauge" reference in this model?

The sealed gauge reference means the sensor is not affected by variations in atmospheric pressure. This is particularly useful in refrigeration systems located at high altitudes or in environments where the sensor is exposed to significant ambient pressure changes, ensuring the pressure reading remains consistent.

How does the IP65 rating protect the sensor in cold storage?

The IP65 rating ensures the transmitter is dust-tight and protected against water jets. In cold storage environments, this prevents moisture ingress caused by condensation or wash-down cycles from damaging the internal electronics, thereby preventing signal drift or short circuits.

Engineering & Installation Guide

• Moisture Prevention (Drip Loop): When installing the 060G2109, always ensure the electrical cable forms a "drip loop" before entering the angular connector. This prevents condensed moisture on the cable from running directly into the connection point, preserving the IP65 seal and preventing terminal corrosion.

• Vibration Mitigation: While the AKS 33 is designed for industrial use, mounting it directly onto a high-vibration compressor housing should be avoided if possible. Instead, mount the sensor on a rigid bracket and use a capillary tube or flexible hose for the pressure connection to decouple the sensor from high-frequency mechanical vibration.

• Wiring Precision: Use the standard EN 175301-803-A pinout for current loop wiring. Ensure the shield of the signal cable is grounded only at the controller side to avoid ground loops, which can introduce noise into the 4 to 20 mA signal and cause erratic pressure readings in the PLC interface.