P40 single crystal silicon differential pressure transmitter

Overview

The P40 series intelligent single-crystal silicon differential pressure transmitter is made with the advanced MEMS technology from Germany, featuring a unique single-crystal silicon dual-beam suspended design. It achieves world-leading high accuracy, ultra-high overpressure performance and excellent stability. With an embedded German signal processing module, it perfectly combines static pressure and temperature compensation, providing extremely high measurement accuracy and long-term stability under a wide range of static pressure and temperature variations. It is widely used in the oil, petrochemical, chemical industries and with throttling devices, offering precise flow measurement and control, as well as accurate measurement of pressure and liquid level in pipelines and storage tanks.

The P4O intelligent single-crystal silicon differential pressure (flow) transmitter can accurately measure differential pressure and convert it into a 4..2OmA DC output signal. This transmitter can be locally operated via three buttons, or configured and displayed using a universal HART hand-held communicator or configuration software, without affecting the 4.20mA output signal.

Product features

• Outstanding overvoltage performance;

• The working static pressure can reach up to 40 MPa.

• High stability: 0.1%/ 60 months;

• Excellent static pressure performance: 土0.05% of range/10 MPa;

• High accuracy: 0.05% Comprehensive accuracy: 0.075%

• Strong anti-interference performance;

• Range compression ratio: 50:1;

• Output: 4~2OmA HART/RS485;

• Excellent environmental adaptability, with intelligent static pressure compensation and temperature compensation, ensures that the transmitter is not affected by temperature, static pressure or overpressure, minimizing the comprehensive measurement error on site.

Technical parameters

Functional Specifications

Measurement range table

Performance parameters

Performance testing standards and benchmark conditions

Test standards: In accordance with GB/T28474 and IEC60770;

Reference conditions: zero-range, silicone oil-filled, 316L stainless steel isolation diaphragm,analog signal output, end-base fine-tuning to the set value. This process complies with theverification procedure of pressure transmitters and can provide the corresponding technical standardcertificates.

Performance indicators

Overall performance includes but is not limited to the combined errors of [reference accuracy],[environmental temperature influence], and other factors.

Typical accuracy: 0.075% of full scale

Annual stability: 0.2% of full scale per 5 years

Reference accuracy

Calibration is based on standard and benchmark test conditions, includinglinearity, hysteresis and repeatability.

Calibration temperature: 20C 5C

TD≤10; ±0.075% of full scale10<TD10(0.001 Xupper

10<TD ≤10 ±(0.001 × upper limit of TD range)%

(TD refers to the range ratio)

Material indicators

Liquid contact parts:316L stainless steel

Non-contacting part:

Shell: 316L stainless steel

Hermes connector: PA

O-ring: Nitrile rubber

Flat gasket: Special-shaped fluororubber

Internal pressure transmission medium: Silicone oi

Electrical performance indicators