7kPa Low Range Piezoresistive Pressure Sensor MPM281

Product catalog summary

Overview: The MPM281 is a high-stability piezoresistive OEM pressure sensor designed for a wide range of industrial applications. It features a robust stainless steel 316L construction and offers precise compensation and isolation for accurate pressure measurement.

Features:

Pressure range from 0 to 7kPa up to 100MPa.
Available in gauge, absolute, and sealed gauge types.
Supports constant current and voltage power supply.
Isolated construction suitable for various media.
Standard Φ19mm OEM sensor with full stainless steel 316L construction.
Wide temperature compensation range from -10℃ to 80℃.
Long-term stability of ±0.1%FS/year.

Applications: The sensor is suitable for industrial process control, level measurement, gas and liquid pressure measurement, pressure checking meters, calibrators, liquid pressure systems, cooling equipment, air conditioning systems, and aviation and navigation inspection.

Electric Performance:

Power supply: ≤2.0mA DC or ≤10V DC.
Electric connection options include φ0.5mm Kovar pin or 100mm silicon rubber flexible wires.
Common mode voltage output is typically 50% of input.
Input impedance ranges from 3kΩ to 8kΩ, and output impedance from 3.5kΩ to 6kΩ.
Response time is less than 1ms.
Insulation resistance is 100MΩ at 100VDC.
Overpressure capacity is 1.5 times the full scale.

Construction Performance:

Diaphragm, housing, and pressure leading tube are made of stainless steel 316L.
Pin material is Kovar, and the O-ring is made of Viton.
Net weight is approximately 16g.

Environmental Conditions:

Shock resistance: no change at 10gRMS, 20-2000Hz.
Impact resistance: 100g for 11ms.
Media compatibility with gases or liquids compatible with stainless steel and Viton.

Basic Specifications:

Linearity: ±0.15 to ±0.20 %FS, BFSL.
Repeatability and hysteresis: ±0.05 to ±0.075 %FS.
Zero output: ±2 mV DC, FS output: 70 mV DC.
Zero and span thermal errors: ±0.75 to ±1.0 %FS at 35℃.
Compensated temperature range: -10 to 80℃.
Working and storage temperature range: -40 to 125℃.
Stability error: ±0.1 to ±0.2 %FS/year.

Installation and Usage Notes:

Recommended installation is in Suspended Mode to avoid affecting sensor stability.
Protect the diaphragm and compensated board from damage.
Standard Viton O-ring temperature range is -20℃ to 250℃; contact the manufacturer for use in critical environments.

Catalog excerpts

7kPa Low Range Piezoresistive Pressure Sensor MPM281-1

Gas, liquid pressure measurement Liquid pressure system and switch Aviation and navigation inspection MPM281 High Stable Piezoresistive OEM Pressure Sensor Features • Pressure range 0 - 7kPa.. .100MPa • Gauge, absolute, sealed gauge • Constant current / Constant Voltage power supply • Isolated construction, enable to measure various media • 019mm standard OEM pressure sensor • Full stainless steel 316L • Wide temperature compensation -10°C - 80°C • Long-term stability^ 0.1%FS/year Application • Industrial process control • Level measurement • Pressure checking meter • Pressure calibrator • Cooling equipment and air conditioning system Introduction MPM281 high stable OEM sensor is the piezoresistive pressure sensor with isolated construction and precise compensation. It uses high stable silicon die, stainless steel 316L housing with diameter 019mm. Wider temperature compensation and zero correction are calibrated by laser trimming technics. The measured pressure is transmitted onto silicon die through 316L diaphragm and inner media, to transform the pressure to electric signal. MPM281 pressure sensor is inspected and screened on automatic production line, testing and checking time after time strictly. It is widely used for various pressure measurement fields. Electric Performance Power supply: <2.0mA DC; ^ 10V DC Electric connection: 90.5mm Kovar pin or 100mm silicon rubber flexible wires Common mode voltage output: 50% input (typ.) Input impedance: 3kO - 8kO Output impedance: 3.5kO - 6kO Response (10%-90%): <1ms Insulation resistor: 100M0, 100VDC Overpressure: 1.5 times FS Construction Performance Diaphragm: stainless steel 316L Housing: stainless steel 316L Pressure leading tube : stainless steel 316L Pin: Kovar O-ring: Viton Net weight: -16g MICRO SENSOR CO.,LTD

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7kPa Low Range Piezoresistive Pressure Sensor MPM281-2

Environment Condition Shock: no change at 10gRMS, (20-2000) Hz Impact: 100g, 11ms Media compatibility: the gas or liquid which is compatible with stainless steel and Viton Basic Condition Media temperature: (35±1)0C Environment temperature: (35±1)C Shock: 0.1g(1m/s2)Max Humidity: (50%±10%)RH Local air pressure: (86 - 106)kPa Power supply: (1.5±0.0015)mADC Outline Construction (Unit: mm) The suggested installation dimension is 019!°'°2 mm MICRO SENSOR CO.,LTD

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7kPa Low Range Piezoresistive Pressure Sensor MPM281-3

Note: The actual electric connection method, please check the parameter label enclosed with products. Order Guide MPM281 High Stable Piezoresistive OEM Pressure Sensor Range code Pressure range Ref. Range code Pressure range Ref. Code Pressure connection Code Compensation M Outer compensated resistor (providing resistor value) Code Electric connection 2* 100mm silicon rubber flexible wires Code Special measurement MICRO SENSOR CO.,LTD

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7kPa Low Range Piezoresistive Pressure Sensor MPM281-4

Notes 1 .It is recommended that the sensor should be installed as Suspended Mode to avoid face type seal and avoid affecting sensor stability. 2.Please pay attention to protect the diaphragm and the compensated board to prevent any damage or bad performance. 3.Temperature resistant range of standard Viton O-ring of sensor is -20 °C - 250 °C. When workingtemperature is lower than -20 C, or sensor is applied in critical environment, please contact us. MICRO SENSOR CO.,LTD

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