Features • Pressure range: 0kPa~35kPa...2MPa • Constant Current / Constant Voltage Power Supply • No O-rings, all welding construction, possible for various fliud media • Stainless steel 316L • High static pressure 20MPa • Wide temperature compensation: 0°C~70°C • Pressure port (optional) • 1.5 times overpressure Application • Industrial process control • Differential pressure measurement • Gas, liquid pressure measure • Pressure checking meter • Pressure calibrator • Ventura and eddy-current flow meter Introduction MDM291 piezoresistive differential pressure transducer is an OEM differential pressure measuring element using stainless steel isolated diaphragm, all welding construction and having no O-rings. It has unified construction, high static pressure, good stability and reliability. The high and low pressure sides are both protected by isolated diaphragm and welded with male screw thread pressure port, therefore the two pressure sides are both possible to corrosive and conductive liquid media. The measured pressure is transmitted onto the die through isolated diaphragm and filling silicon oil. The sensor element chooses high accuracy and high stability silicon die. It achieves precise differential pressure measurement. The transducer is produced in advanced production line, through automatic computer testing and temperature compensation, so it has good temperature feature. It can be widely used in industrial process control field etc. for differential pressure measurement. Electric connection: 100mm silicon rubber flexible wire Common Mode Voltage Output: 50% input (typ.) Input impedance: 2kQ - 8kQ Output impedance: 3.5kQ - 6kQ Response (10%-90%): <1ms Insulation Resistor: 100MQ,100VDC Overpressure: refer to Order Guide Max static pressure: 20MPa Zero drift/ Static pressure: <0.5mV/MPa MICRO SENSOR CO.,LTD Construction Performance Diaphragm: stainless steel 316L Housing: stainless steel 316L http://www.microsensor.cn Add: No.18,Yingda Road Baoji,P.R.China, 721006

MPM291 Pressure Sensor (V2.0) Leading wire: silicon rubber flexible wire Net weight: ~355g Environment Condition Shock: No change at 10gRMS,(20 -2000) Hz Impact: 100g, 10ms Media Compatibility: gas or liquid that is compatible with stainless steel 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 Basic Specification Outline Construction (Unit: mm) http://www.microsensor.cn MICRO SENSOR CO.,LTD

MPM291 Pressure Sensor (V2.0) Electric Connection Note: The actual electric connection method, please check the parameter label enclosed with products. Code Compensation L Laser Trimming M Outer compensated resistor (providing resistor value) Code Electric Connection 2 100mm silicon rubber flexible wires Code Pressure Connection Null No pressure port and electric connection port C1 M20*1.5 male, face type seal 1. High pressure side and Low pressure side are marked ”H” and ”L” on the body. 2. During application, the pressure on the high side should not be lower than...