060G2111 Danfoss AKS 33 High-Precision Pressure Transmitter

Product Overview

The 060G2111 (060G2111) is a specialized pressure transmitter from the Danfoss AKS 33 series, specifically engineered for high-performance monitoring within refrigeration and air conditioning systems. This sensor generates a 4 to 20 mA current output signal, ensuring high noise immunity and stable data transmission even across long distances. Designed with a sealed gauge pressure reference, the 060G2111 is inherently protected against atmospheric humidity and pressure fluctuations, making it an ideal choice for low-temperature environments where moisture ingress can compromise standard sensors. With a robust overload capacity of 33 bar (479 psi), it provides the durability required for reliable operation in demanding commercial and industrial cooling circuits.

Technical Configuration

The hardware of the AKS 33 series is built for precision under fluctuating thermal conditions. The 060G2111 maintains a wide ambient and medium temperature range from -40 to 85 deg C. For mission-critical accuracy, the transmitter features a compensated temperature range of -30 to 40 deg C, where thermal drift is electronically neutralized to ensure linear output. Electrical connection is facilitated via a standard EN 175301-803-A angular connector, which provides an IP65 enclosure rating to resist dust and water ingress. The compact, lightweight design (0.168 kg) allows for direct installation on manifolds or piping, facilitating fast response times for compressor control and system diagnostics.

Technical Specifications

Technical FAQs

How does the sealed gauge reference benefit refrigeration cycles?

Standard gauge sensors rely on atmospheric venting, which can allow humid air to enter the sensor body. In refrigeration, this often leads to internal condensation and frost. The sealed gauge reference of the 060G2111 uses a fixed 1 bar internal reference, completely isolating the sensing element from the external environment.

What is the significance of the 4-20 mA current signal for this sensor?

The 4-20 mA current loop is the industrial standard for reliability. Unlike voltage signals, it is not affected by voltage drops over long cables and is highly resistant to electromagnetic interference (EMI) from nearby motors or variable frequency drives.

What happens if the pressure exceeds the 33 bar overload limit?

The 33 bar limit is the maximum pressure the sensor can withstand without suffering mechanical damage. If this limit is exceeded, the internal diaphragm may undergo permanent deformation, resulting in a shifted zero point or total failure of the transmitter.

Engineering & Installation Guide

• Pulsation Dampening: When installing the 060G2111 near a reciprocating compressor, use a capillary tube or a pressure snubber. Direct exposure to high-frequency pressure pulsations can cause mechanical fatigue in the sensing element over time.

• Moisture Protection: To maintain the IP65 integrity, ensure the angular connector gasket is correctly seated and the central fastening screw is tightened. Always implement a "drip loop" in the wiring—directing the cable downward before it enters the connector—to prevent water from tracking along the cable and into the electronics.

• Wiring Configuration: This is a 2-wire transmitter. Connect the positive supply to Pin 1 and the signal/return to Pin 2 of the EN 175301-803-A connector. Ensure the power supply is stable 24 VDC (typically 10 to 30 VDC) to maintain a linear 4-20 mA output across the full pressure range.