Application and construction
The PC-29A and PC-29B pressure transmitters are applicable to the measurement of the pressure, underpressure and absolute pressure
of gases, vapours and liquids. The active sensing element is a piezoresistant silicon sensor separated from the medium by a diaphragm and by specially selected type of manometric liquid. The electronics is placed in a casing with a degree of protection from IP 65 to IP 68, depending on the type of electrical connection applied.
Calibration: Potentiometers can be used to shift the zero position and the range by up to ±10%, without altering the settings.
Measurements under explosion hazard: ATEX Intrinsic safety version is available for taking measurements in zones under explosion hazard. The installation of the transmitter in a zone under explosion hazard requires the use of a Ex power supply. We recommend the use of the Aplisens ZS-30/1Ex power supply and separator.
Technical data
Any measuring range: 0...25 mbar ÷ 0...1000 bar (over pressure, under pressure); 400 mbar ÷ 80 bar (absolute pressure)
Hysteresis, repeatability: 0,05%
Response time: < 120 ms
Thermal compensation range: -10...80°C
Operating temperature range (ambient temp.): -40...80°C
Medium temperature range: -40...120°C
Over 120°C – measurement with use an impulse
CAUTION: the medium must not be allowed to freeze in the impulse line or close to the process connection of the transmitter
Material of wetted parts: 316Lss
Material of casing: 304ss, 316Lss
Power supply: please see datasheet
Details about power supply for Exia version available in manual
Error due to supply voltage changes: 0,005%/ V
Load resistance: R≥ 20 kΩ