Microsensor Differential Pressure Sensor No O-ring Welded DifferentialPressure Sensor MDM291 for Gas Liquid

• Customization: Available
• Measuring Medium: Liquid
• Output Signal Type: Analog Output
• Model NO.: MDM291
• Production Process: SemiConductor Integrated
• Material: Metal
• Accuracy Grade: 0.5G
• Certification: RoHS
• Customized: Customized
• Fully Welded: Wet
• Output: Analog Sensor
• Usage: Processing Pressure Measurement
• Theory: Pizoresistive
• Pressure Range: 0~35kpa^2MPa
• Max Static Pressure: 20MPa
• Response Time(10% ~ 90%): < 1ms
• Wide Temperature Compensation: 0~70 Celsius
• Power Supply: <= 2.0madc
• Insulation Resistor: 100m Omega, 100VDC
• Transport Package: Standard Package for Exporting
• Specification: ISO9000, RoHS
• Trademark: Micro Sensor
• Origin: China
• Production Capacity: 1, 000, 000PCS/Year

Product Description

Microsensor Differential Pressure Sensor No O-ring Welded DifferentialPressure Sensor MDM291 for Gas Liquid

Features:    

     ·Pressure range: 0bar~0.35bar…20bar 
     ·Constant Current Power Supply
     ·No O-rings, all welding construction, possible for various media
     ·Stainless steel 316L
     ·High static pressure 200bar
     ·Wide temperature compensation: 0ºC~70ºC
     ·Different threads connection optional  

Application:·

     ·Industrial process control            
     ·Differential pressure measure            
     ·Gas, liquid pressure measure

     ·Pressure checking meter  
     ·Pressure calibrator                    
     ·Ventura and eddy-current flow meter

Introduction:

MDM291 welded differential pressure sensor 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 Performance:  

     Power supply:  ≤2.0mADC; ≤10V DC
     Electric connection: 100mm silicon rubber flexible wire
     Common Mode Voltage Output: 50% input (typ.)
     Input impedance: 2kΩ~8kΩ 
     Output impedance: 3.5kΩ~6kΩ 
     Response Time(10% ~ 90%): < 1ms
     Insulation Resistor:100MΩ,100VDC 
     Overpressure: refer to Order Guide
     Max static pressure: 20MPa 
     Zero drift/ Static pressure: ≤0.5mV/MPa  

Construction Specification:  

     Diaphragm material: stainless steel 316L 
     Housing: stainless steel 316L 
     Leading wire: silicon rubber flexible wire
     Net weight: 355g  

Environment Condition:  

     Position Effect: deviate 90°from any orientation, zero change ≤0.2%FS
     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)ºC
     Environment temperature: (35±1)ºC 

     Shock: 0.1g(1m/s/s) Max

     Humidity: (50%±10%) RH
     Local Air Pressure: (86~106) kPa
     Power supply: (1.5±0.0015) mADC 

Outline Construction:

(Unit:mm)

Order Guide:

MDM291		Piezoresistive OEM Differential Pressure Sensor
		Range Code		Pressure range		Positive Overpressure					Negative Overpressure
		0A		0~35kPa		70kPa					35kPa
		02		0~70kPa		150kPa					70kPa
		03		0~100kPa		200kPa					100kPa
		07		0~200kPa		400kPa					200kPa
		08		0~350kPa		700kPa					350kPa
		09		0~700kPa		1400kPa					700kPa
		10		0~1MPa		2.0MPa					1.0MPa
		12		0~2MPa		4.0MPa					1.0MPa
				Code		Temperature Compensation Mode
				L		Laser Trimming
				M		Outer compensated resistor (providing resistor value)
						Code		Electric Connection
						2		100mm silicon rubber flexible wires
								Code		Pressure port
								(default)		Without pressure connection and electrical installation connection
								C1		M20×1.5 male, face type seal
								C2		G1/4 male
								C3		G1/2 male
								C4		G1/4 female
MDM291        12              L           2         C1         whole spec.

 

Order Note:
1. High pressure side and Low pressure side are marked "H" and "L" respectively on the body;
2. During application, please pay attention that the pressure of high pressure side should be higher than that of low pressure side;
3. Please pay attention to protect the diaphragm, prevent it from damaging; 
4. Please do not pull the leading wires. 
 

Certificates We Have

Company Overview

Products Family

Applications:

FAQ:
1. Q: Are you a manufacturer or trading company?
    A: We are a professional manufacturer since 1971 on Pressure/ Level/ Temperature/ Flow transmitters with 4~20mA, Hart, Rs485 & Modbus protocols, pressure sensors with SDI, I²C, 4~20mA, 0.5~4.5V and etc, and wireless IOT measurement transmitters. We provide high-quality products with high competitive factory prices.
 
2. Q: What's your quality control system?
    A: As an ISO9001:2008 certificated manufacturer, we have a strict quality control system, and each product is done with fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
 
3. Q: Is there MOQ with your product?
    A: We have no MOQ limits, 1pc for testing is acceptable.
 
4. Q: Do you provide customized products?
    A: Yes, we can print your logo on our products; OEM, ODM & customization are welcomed.
 
5. Q: What is the warranty of your products? And after-sales service?
    A: Our warranty time is 12 months after shipment, and our after-sales will respond with your questions in 24hrs, remote instruction by PC network is always available.
 
6. Q: What is the lead time of your product?
    A: We are a factory, our lead time is always within 10~15 working days for products without customization, but lead-time will vary based on different products. You can check detailed lead-time with our sales.

7. Q: What international certificates do you have for your products?
    A: We have CE, RoHS, UL, ATEX as well as ship-use DNV, etc.