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Industrial pressure transmitter - Model PI1U

Pressure transmitter PI1U

Product description

Featured with a state-of-the-art digital compensation and a modular design, the PI1U is our most accurate, most precise and most versatile pressure transmitter. It utilizes the latest leading-edge technologies to measure pressure and offers unequaled performance, excellent stability and proven reliability. The pressure transducer is designed for any application that requires a very high pressure measurement. The modular design can serve as the basis for a unique custom solution without sacrificing price and high performance.

The sensing element is a solid-state piezoresistive silicon die. This technology provides excellent repeatability, increased long-term stability and reliability, and virtually no hysteresis. The silicon strain gage is fitted into a 316 stainless steel package and is completely isolated from the media. There are no internal O-rings or elastomers to contain the media and to contribute to instabilities or drifts.

The sensor signal is digitized, compensated and processed by a powerful, low power 32-bit microcontroller. It is then converted back to an amplified analog signal. The digital electronics ensures precise calibration of all critical parameters and achieves very high precision, thermal stability and compensation of all repeatable errors. Each unit is fully tested, compensated and calibrated for pressure and temperature. Each transmitter is shipped with a traceable calibration card.

The electronics is packaged in a hermetically-sealed all-welded 316 stainless steel housing enabling the PI1U to be immersed in water or pressure washed without internal leakage. This design makes the PI1U ideal for pressure measurements that can involve wet, corrosive or sterile media in the most severe environments.


Physical characteristics
Pressure range 0 to 600 bar through 0 to 1000 bar
Pressure type ✔ absolute ✔ sealed gage ✔ compound
Vacuum possible, down to 1 μbar absolute
Safe overpressure 1.5 x
Burst pressure 2 x
Environmental characteristics
Storage temperature -40 to 125°C
Operating temperature extremes -40°C, 125°C
Maximum operating temperature span 160°C
Ambient temperature -40 to 80°C
Electrical characteristics (choose one circuit)
Power supply / excitation 8 - 32 VDC 13 - 32 VDC 8 - 32 VDC 8 - 32 VDC
Output signal 4 - 20 mA 0 - 10 VDC 0 - 5 VDC 0.5 - 4.5 VDC
Current draw 20 mA 5 mA 5 mA 4 mA
Response time 5 ms 5 ms 5 ms 5 ms
Mechanical characteristics
Electrical connections ✔ DIN 43650-A ✔ Amphenol C 091 A ✔ M12x1 ✔ PTIH-10-6P ✔ PE cable
Mechanical connections ✔ G 1/4" Ext ✔ G 1/4" Int ✔ G 1/2" Ext ✔ G 1/2" Ext ✔ 1/4"-18NPT Ext
Materials available 316L Stainless steel
Seal materials available FKM, EPDM, Silicone, NBR
Performance (depending on temperature compensation range)
Compensated temperature range 0 to 50°C -10 to 80°C
Linearity ±0.02%FS ±0.02%FS
Hysteresis ±0.005%FS ±0.005%FS
Repeatability ±0.005%FS ±0.005%FS
Zero offset ±2mV ±2mV
Span offset ±0 ±0
Temperature drift of Zero ±0.01%FS/K ±0.01%FS/K
Temperature drift of Sensitivity ±0.03%/K ±0.03%/K
Stability (per annum) ±0.1%FS ±0.1%FS

All values are typical values.