Product category:
Pressure sensors
News Release from: SensorsOne | Subject: DPS low absolute pressure transmitter
Edited by the Engineeringtalk Editorial
Team on 04 September 2006
Pressure transmitter goes low with
accuracy
Low absolute pressure transmitter is suitable for a wide range of vacuum measurement applications on autoclaves, drying systems, environmental chambers and leak testing.
The DPS low absolute pressure transmitter can cover ranges as low as 0 to 2mbar absolute and is suitable for a wide range of vacuum measurement applications on autoclaves, drying systems, environmental chambers and leak testing The absolute pressure sensing capsule includes a highly reliable and stable linear variable differential transformer (LVDT) which is a well proven technology for detecting fractional movements with frictionless precision
This article was originally published on Engineeringtalk on 24 May 2006 at 8.00am (UK)
Related stories
Digital auto-zero and span option for transmitters
Industrial and precision pressure transmitters incorporate versatile zero and span trimmer that removes the need to adjust potentiometers or use handheld terminals to set the 4 to 20mA current output.
Display plugs in for pressure readout
A novel loop-powered display simply plugs-in between the DIN plug and socket of a pressure transmitter to provide a local indication of the pressure reading.
When combined with a sensing diaphragm that can translate very low pressures linearly and with repeatability a high performance low pressure transducer is produced.
The pressure ranges start with 0-10mbar absolute which can be down ranged for use over 0-2mbar absolute and go up to a maximum range of 40bar absolute.
The DPS vacuum pressure sensor can be used with wet gases and liquids because it is made from fully welded heat treated stainless steel.
There are also options for manufacturing in stainless steel 316L and Hastelloy C276 for more corrosive media such as salt water.
The electronics can be factory set with nonlinear signal outputs, particular RC time constants and filter jump outs for rapid change events.
The user can change the range by simply touching two contacts together at the desired zero and full scale values.
This is particularly useful for applications such as measuring barometric pressure where you are only interested in a range from 800 to 1100mbar absolute.
There are six different signal outputs that can be specified for the DPS low absolute pressure transducer: 4-20mA current output in the widely used two-wire format; and 0-10mA, 0-20mA, 4-20mA, 0-5V, 0-10V and 1-5V amplified outputs all in a three-wire format.
The DPS low absolute pressure sensor bridges the gap between strain gauge diaphragm technology and ultra low vacuum sensing technology such as Pirani or ion gauges to measure pressures from 0-2 to 0-250mbar absolute.
• SensorsOne: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
