Differential Pressure Transmitter

Sensor principle of PESCO Differential Pressure Transmitter

The differential pressure transmitter consists of two functional units, the main unit and the auxiliary unit.

The main unit comprises a sensor and process links, the working principle is as follows: the sensor module adopts the welding technology, has an integrated overload diaphragm, an absolute pressure sensor, a temperature sensor and a pressure sensor. The pressure sensor is installed on the high pressure side of the sensor box, which is the reference value of static pressure measurement and compensation. As the temperature sensor for temperature compensation of the reference value, the low pressure chamber side and negative pressure sensor diaphragm differential pressure sensor is connected to the differential pressure through the diaphragm and liquid filling, transfer to the silicon chip differential pressure sensor, the differential pressure sensor chip resistance changes, resulting in the detection system of the change of output voltage, the output voltage changes with pressure the signal is proportional to the output of the amplifier adapter unit and transformed into a standard.

The technical advantage of PESCO Differential Pressure Transmitter.

The center sensor unit of the differential pressure transmitter adopts the leading high-precision single product silicon sensor technology at home and abroad, which can reach up to ±0.05%high precision;

Micro differential pressure transmitter using the world’s leading double overload protection diaphragm patented technology, up to ＋0.075%high precision;

The transmitter pressure differential pressure were 16MPa, 25MPa and 40MPa gear, one-way overload pressure up to 40MPa;

Differential pressure transmitter optional static pressure sensor package, can be used to measure the static pressure field work and display, but also can be applied to static compensation, excellent static; performance, static optimal error less than 0.05%/10MPa;

The sensor integrated sensor with high sensitivity, excellent performance of optimal temperature transmitter, less than 0.04%/10K;

Full stainless steel 316L silicone oil filling welding sealing structure;

Micro range gauge/absolute of PESCO Differential Pressure Transmitter with no loss of pressure overload protective membrane patent technology leading, one-way overvoltage of up to 7MPa, which is the full range of 1166 times;

Stable and reliable,long-term drift of＋0.1%/3 years,5 years free maintenance;

Very wide measurement range 100Pa～40MPa(up to 60MPa);Adjustable range of maximum 100:1;

EMC comply with GB/T 18268,1-2008 standard requirements;

Main features of PESCO Differential Pressure Transmitter:

1. The advanced single crystal silicon sensor technology and capacitive sensing technology;
2. High stability, high reliability, high anti-interference;
3. A variety of debugging methods: on the spot button, hand operator,communications software;
4. the local button and the LCD header can realize the transmitter function configuration;
5. optional lightning protection (transient voltage resistance)function optional stainless steel electronic case;
6. Liquid level, remote transmitter: form, isolation diaphragm, filling fluid selection rich;
7. Measuring medium: liquid,steam and gas basic error:＋005%~＋＋0.1%,
8. Maximum range ratio: 100:1 -measuring range(no migration),
9. The pressure range of : 0-50Pa~lMPa,
10. The pressure range: 0-lkPa ～40MPa,
11. The absolute pressure range :0-10kPa～3MPa.
12. The ambient temperature: 4(TC～+85-C ( explosion-proof, lightning protection: -40 degrees C～+60 degrees C ) ( with LCD header, fluorine oil: -20 degrees C~+60 degrees )
13. The measured medium temperature: -40 degrees C~+315 degrees C temperature affect-20 C～+65. ( when ) Soil ( 003% URL+0.05% Span ) / 20C-40 DEG C~+85 DEG C, and Soil ( 01%URL+0.1% Span ) / 120°C
14. Static pressure level: 16MPa, 25MPa, 40MPa
15. Static pressure effects: +0.05%URL/10MPa*long drift: +0. 10%URL/3 years
16. Explosion proof mark:Ex DT4~T6>ExIAIICIICT4-T6 Reference output communication protocol: HART, PROFIBUS-PA,FF
17. Output function: linear, square root isoparametric electromagnetic compatibility:EN 61326-1:2006 Fast dynamic response Protection level:Ip67
18. Filling fluid:silicone oil,fluorine oil,high temperature silicone oil, etc.
19. Base type isolation diaphragm:316L,Hastelloy C,etc. ·LCD header: display engineering units, percentage, current value,etc.
20. Remote form: flat flange, tube insertion of the clip, flange mounted,screw type,clamp type,coupling type,micro-level, remote diaphragm: 316L, Hastelloy C, tantalum, PFA coating, F46 coating,plating etc.
21. TK-3051 series products are still based on the traditional metal capacitive differential pressure sensor applications. Its high performance price ratio can meet the needs of different users.

 

Product Introduction of Differential Pressure Transmitter.

3051C differential pressure, gauge pressureand absolute pressure transmitter Excellent performance:accuracy 0.05%~0.1%;

Differential pressure: the inspection range from 0.1kPa to 21MPa. Gauge pressure:the inspection range from 0.12kPa to 21MPa. Absolute pressure:the inspection range from 1.5kPa to 21MPa; Process isolation diaphragm: stainless steel, hastelloy, Monel, tantalum (only for CD, CG) and gold plated Monel, gold plated stainless steel;

Compact design, solid and light in weight, easy to install Compound range (only for CD,CG),able to measure the negative pressure;

3051T differential pressure,gauge pressureand absolute pressure transmitter Excellent performance:accuracy 0.05%~0.1%;

Absolute pressure:the inspection range from 0.12kPa to 120MPa. Gauge pressure:the inspection range from 0.12kPa to 120MPa. Stainless steel and hastelloy C process isolation diaphragm. Filling liquid: silicon oil and inertia fluid;

Optional DIN and connected to process matching pressure reaction tank;

Compound range(only for TG),able to measure negative pressure Maximum overpressure over 1000 times;

PESCO intelligent pressure / differential pressure transmitter adopts high-precision silicon sensor technology, a new type of intelligent high-precision transmitter, based on electronic components through a microprocessor, to achieve communication with field devices. Pressure/differential pressure transmitters include gauge pressure, differential pressure, absolute pressure, high static differential pressure and many other varieties. Widely used in petroleum, chemical industry, electric power, metallurgy, water affairs, brewing and other industrial fields.

The pressure sensitive core of PESCO P310 series Differential Pressure Transmitter adopts a high-performance imported silicon piezoresistive pressure oil-filled core. The internal ASIC converts the sensor millivolt signal into a standard voltage, current or frequency signal, which can be directly connected to the computer circuit. Interface cards, control instruments, smart instruments and PLCs are easily connected. Long-distance transmission can adopt the current output mode. With small size, light weight, all stainless steel sealed structure, it can work in corrosive environment. The product is easy and simple to install, and has high shock resistance and shock resistance.

 

PESCO Differential Pressure Transmitters are widely used in aerospace, electric power, sewage treatment, water supply, petrochemical and pharmaceutical industries, thermoelectric units, air conditioning units, refrigeration units, laboratory pressure calibration, industrial process pressure detection and control, internal combustion engines, engines, hydraulic and pneumatic systems, Measurement and control of liquids and gases in industries such as constant pressure water supply systems.

 

PESCO 2051 differential pressure installation gauge/absolute pressure transmitter is used to measure the liquid level, density and pressure of liquid, gas or steam, and then convert it into 4~20mADC HART current signal output. Using high-precision single crystal silicon technology, the measurement accuracy is as high as 0.075, and the unique double overload protection film design, the one-way overvoltage can reach 40MPa.

 

PESCO P400 industrial pressure transmitter adopts OEM fully welded pressure core body and micro amplifier processing circuit. The zero scale can be moved. Its installation interface form can be processed according to the user’s requirements, and specifications compatible with other brand transmitters can be provided. This series of products are widely used in industrial process control, hydraulic equipment, chemical industry and other industries. This product has obvious advantages for the harsh industrial site environment.

To get the exact quotations of the Differential Pressure Transmitter and for more details of Mechanical Properties and Chemical Composition, please contact us freely, you will have instant feedback.

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