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YK-A6012. Gauge / Absolute Pressure Transmitter

The YK-A6012 electronic circuit adopts both analog and intelligent modular design, providing 4–20 mA analog output and digital communication (HART protocol) output options. The intelligent YK-A6012 features temperature and pressure self-compensation, self-configuration, self-calibration, and self-diagnosis functions. All factory parameters are backed up and will not be lost under any conditions.

The intelligent YK-A6012 communicates via the HART protocol and is compatible with any host system or handheld communicator supporting HART communication.

The device can be equipped with an LCD display, with selectable engineering units including kPa, MPa, %, mA, m, and mm.

008615821551277

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8615821551277

YK-A6012. Gauge / Absolute Pressure Transmitter

description1

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Product Parameters

Specification	Details
Structure Type	Integrated
Connection Type	Thread, Bracket
Housing Material	SCS14A, Cast Aluminum Alloy
Connector Material	SCM435, SUS630, SUH660
Diaphragm Material	Alloy C, Hastelloy C-276, Hastelloy
Ambient Temperature	-30 ~ 70°C
Process Temperature	-20 ~ 100°C
Applicable Pressure	-0.1 ~ 14 MPa (Negotiable)
Accuracy	±0.1 / ±0.2% / ±0.075%
Electrical Interface	M20×1.5 (Negotiable)
Output Mode	4~20mA, HART Protocol, RS485
Protection Class	IP65, IP66
Certification	Intrinsic Safety, Explosion-proof
Power Supply Voltage	24VDC

Product Principle

In the absolute pressure transmitter, one side of the delta chamber receives the measured absolute pressure signal, while the other side is sealed as a high-vacuum reference chamber, and the pressure is then converted into a 4–20 mA DC signal output. Its core operating principle is that external pressure acts on the isolating diaphragm, causing the diaphragm to deform, which in turn changes the capacitance value between the diaphragm and the fixed electrode. The internal circuitry detects this capacitance change and converts it into a 4–20 mA DC standard signal proportional to the absolute pressure.