Danfoss AKS 32R, AKS 2050 Data sheet

Data Sheet

Pressure transmitter

Type AKS 32R and 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

Features

• Highly developed sensor technology means great regulation accuracy

• Selective temperature compensation

• Compatible with all refrigerants incl. ammonia and CO2

• Robust construction gives protection against mechanical influences such as shock, vibration, and pressure surge

• Polarity protected inlets

• Sealed gauge measuring principle (pressure reference = 1013 mbar)

• For use in zone 2 explosive atmospheres

AI309145930291en-000301

Pressure transmitter, AKS 32R and AKS 2050

Product speci€cation

Technical data

Table 1: Performance (EN 60770)

	Features	Description
	Accuracy (incl. Linearity, Hysteresis and repeatability)	± 0.3% FS (typ.)
		± 0.8% FS (max.)
	Non-linearity (best fit straight line)	< ± 0.2% FS
	Hysteresis and repeatability	≤ ± 0.1% FS
	Thermal zero point operation	≤ ± 0.1% FS/10K (typ.)
		≤ ± 0.2% FS/10K (max.)
	Thermal sensitivity operation	≤ ± 0.1% FS/10K (typ.)
		≤ ± 0.2% FS/10K (max.)
	Response time	< 4 ms
	Max. working pressure	See Dimensions and weight
	Burst pressure	> 6 × FS
	Power-up time	< 50 ms

Table 2: Electrical speci€cations

Features	Description
Nominal output signal (short-circuit protection)	10 – 90% of [UB]
Supply voltage [UB] (polarity protected)	4.5 – 5.5 V DC at 5 V DC (nom.)
Power consumption	< 5 mA at 5 V DC
Ratiometricity	< 0.05% FS / 4.5 – 5.5 V
Sink / source	< 1 mA
Load [RL] (load connected to ground)	RL ≥ 10 kΩ at 5 V DC

Table 3: Environmental conditions

	Sensor operating	Normal			-40 – 125 °C
	temperature range	ATEX Zone 2			-10 – 85 °C
	Media temperature range				-40 – 125 °C
	Compensated temperature range				See ordering
	Transport / storage temperature range				-50 – 85 °C
	EMC – Emission				EN 61000-6-3
	EMC – Immunity	Electrostatic discharge	Air	8 kV	EN 61000-6-2
			Contact	4 kV	EN 61000-6-2
		RF	field	10 V/m, 26 MHz – 1 GHz	EN 61000-6-2
			conducted	3 Vrms, 150 kHz – 30 MHz	EN 61000-6-2
		Transient	Burst	4 kV (CM)	EN 61000-6-2
			Surge	1 kV (CM, DM)	EN 61000-6-2
	Insulation resistance				> 100 MΩ at 100 V DC
	Vibration stability	Sinusoidal	20 g, 25 Hz – 2 kHz		IEC 60068-2-6
		Random	7.5 grms , 5 Hz – 1 kHz		IEC 60068-2-64
	Shock resistance	Shock	500 g / 1 ms		IEC 60068-2-27
		Free fall	1 m		IEC 60068-2-32
	Enclosure (IP protection ful•lled together with mating connector)				IP65-IEC 60529

© Danfoss | Climate Solutions | 2021.02

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