Sensor Technologies Inc. (AST) has released the AST4000
pressure sensor with special configurations for the hydraulic industry.
Through the use of a three-digit option code, the AST4000 series can be
modified to withstand a variety of mechanical, electrical and environmental
challenges in hydraulic pressure measurement applications.
AST4000 uses AST's proprietary Krystal Bond Technology, where the pressure
port is constructed from a single piece of stainless steel. Special packages of
the AST4000 are available to withstand pressure transients common to hydraulic
applications. Standard proof pressure capability is two times the rated
pressure, but the AST4000 can be specified with a four times proof pressure.
AST4000 pressure sensor features an all-stainless-steel housing welded to the
sensing element to protect against environmental conditions. Whether installed
outdoors or on equipment that experiences high-pressure wash down conditions,
the electronics of the pressure sensor are protected from water, dust or
moisture penetration with cable or connector configurations.
variety of output signals are available on the AST4000 series. For long
transmissions, the sensor can be packaged with a 4-20mA output signal. Voltage
output signals are available for applications requiring low current
consumption. The 10mV/V output signal is also commonly used in hydraulic
applications requiring fast response time. For customers looking to monitor
pressure transients, the millivolt output signal provides a bandwidth of (3dB):
dc to 5kHz, min.