Pressure Transmitter 23SX

製品詳細

Product Description

In the 23SX series high-precision pressure transmitters, temperature dependencies and non-linearity are precisely compensated for by means of a mathematical model in the microcontroller. In addition to the RS485 interface with Modbus RTU protocol, there is also the option of outputting the measurement results as a scalable analogue signal via the integrated D/A converter. The fully welded construction without internal seals is suitable for dynamic applications. Only stainless steel is in contact with the media.

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series-23sx datasheet DL

Features

RS485 interface can be combined with an analog interface
Analog interface can be ranged via RS485 (turn-down)
Modbus RTU protocol for process values and configuration
Excellent long-term stability

Technology

Insulated and encapsulated piezoresistive pressure sensor chip
Fully welded construction without internal seals
High-quality pressure transducers and proven mathematical compensation
Based on technology from the well-known 33X series with the highest level of accuracy

Accuracy

± 0,1 %FS

Total error band

± 0,25 %FS @ -10…80 °C

Pressure ranges

0…0,16 to 0…1000 bar

sketch

Performance

Pressure

Accuracy @ RT (20…25 °C)	≤ ± 0,1 %FS	Non-linearity (best fitted straight line BFSL), pressure hysteresis, non-repeatability, zero point deviation and amplification deviation.
Total error band (-10…80 °C)	≤ ± 0,25 %FS	Max. deviation within the compensated pressure and temperature range. Experience shows that, outside the compensated temperature range, the total error band is expanded by 0,1 %FS within the ambient temperature range.
Compensated temperature range	-10…80 °C
Long-term stability	≤ ± 0,15 %FS	Per year under reference conditions, yearly recalibration recommended.
Position dependency	≤ ± 1,5 mbar	Calibrated in vertical installation position with pressure connection facing downwards.
Resolution	0,002 %FS	Digital
Signal stability	0,01 %FS	Digital noise-free
Internal measurement rate	≥ 1800 Hz	For version «3-wire + digital (0…10 V. 0…5 V)» > 6000 Hz.
Pressure range reserve	± 10 %	Outside the pressure range reserve, +Inf / -Inf is displayed. If there is an error in the device, NaN is displayed.
Vacuum resistance	For operating pressures ≤ 0,1 bar abs., a vacuum-optimised version is recommended.
Note	For pressure ranges < 1 bar, accuracy, total error band and long-term stability for 1 bar full-scale (FS) range apply. Higher accuracy available on request.

Temperature

Accuracy	≤ ± 2 °C	The temperature is measured on the pressure sensor chip that sits behind the metallic separating diaphragm. The specifications apply within the compensated temperature range.
Resolution	≤ 0,01 °C
Internal measurement rate	> 10 Hz