KPT1000-DP Monocrystalline Silicon Intelligent Differential Pressure Transmitter

1.Introduction

The KPT1000-DP Monocrystalline Silicon Intelligent Differential Pressure Transmitter uses a single crystal silicon sensor chip made of advanced German MEMS technology, a double diaphragm structure, and exquisite production technology to achieve high precision and ultra-high stability of the product. The embedded intelligent signal processing module achieves the perfect combination of pressure and temperature compensation, providing reliable measurement accuracy and excellent long-term stability under a wide range of static pressure and temperature changes.

The KPT1000-DP single crystal silicon differential pressure transmitter can be used to measure the liquid level, density, and pressure of liquid, gas, or steam, and convert it into a 4-20mA DC (superimposed HART communication) current signal output;

Remote and local parameter setting function configuration is realized through Hart or RS485 communication and panel buttons.

2.Features

  • High precision level: German high-precision single crystal silicon sensor chip, accuracy ≤ ±05%.
  • Strong load resistance: double overload protection diaphragm design, single overpressure can reach 42MPa.
  • Excellent environmental adaptability: intelligent static pressure compensation and temperature compensation eliminate the influence of temperature, static pressure and overload on the transmitter, and minimize the comprehensive test error on site.
  • Excellent long-term stability: stability can be maintained at 0.1FS%/3 years.
  • Flexible remote assistance debugging function: remote and local parameter setting function configuration is realized through Hart or RS485 communication and panel buttons.

3.Applications

  • Petroleum/Chemical/Fossil: Matched with throttling devices, it provides accurate flow measurement of pipeline and tank pressure and liquid level.
  • Electricity/City Gas: Places that require high stability and high precision pressure, flow, and liquid level measurement.
  • Pulp/Papermaking: Used for furnace pressure, negative pressure measurement and other places that require high stability and high precision measurement.
  • Steel/Nonferrous Metals/Ceramics: Used for pressure, flow, and liquid level measurement places that require chemical resistance and corrosion resistance.
  • Mechanical Equipment/Shipbuilding: Used for places that require stable measurement under strict control of pressure, flow, liquid level and other indicators.

4.Dimensions

KPT1000-DP Monocrystalline Silicon Intelligent Differential  Pressure Transmitter dimension

ParameterSpecification
ModelKPT1000-DP high-precision differential pressure transmitter
Measurement mediumMeasures the pressure of liquid, gas or steam
Measurement typeDifferential pressure measurement, absolute pressure measurement
Output signal4~20mA+HART protocol digital signal
RS485 serial port signal
Measurement rangeRange code: 0B
Range: (0~0.6)KPa~6KPa
Recommended compression ratio: 10:1
Range code: 0C
Range: (0~2)KPa~40KPa
Recommended compression ratio: 20:1
Range code: 0E
Range: (0~2.5)KPa~250KPa
Recommended compression ratio: 100:1
Range code: 0F
Range: (0~10)KPa~1MPa
Recommended compression ratio: 100:1
Range code: 0G
Range: (0~30)KPa~3MPa
Recommended compression ratio: 100:1
Ambient temperature effectThe total impact at (-25~+65)℃ is:
±(0.15*TD+0.05)%*Span
The total impact at (-40~-25)℃ and (+65~+85)℃ is:
±(0.2*TD+0.05)%*Span
Overpressure effect±0.1%*Span
Static pressure effect±(0.05%URL+0.075%Span)/10MPa
Long-term stability±0.15%URL/10 years
Power supply effect±0.001%/10V(12~36)VDC, negligible
Range limitIt can be adjusted arbitrarily within the upper and lower limits of the range. It is recommended to select a range code with the lowest possible range ratio to optimize performance characteristics.
Zero settingCalibration range ≥ Minimum range
Installation position effectThe change of the installation position parallel to the diaphragm surface will not cause zero point influence. If the installation position is not parallel to the diaphragm surface, it can be eliminated by calibration. No influence on the range
Alarm currentOffline 3.6mA
Online 21mA
Insulation resistance100MΩ or more to ground (DC 500V)
Insulation strengthTo ground AC 500V 50/60Hz, 1 minute
The product demonstration video is under preparation and will be released shortly.

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