3.5MPa Low Range OEM Customized Stainless Steel Piezoresistive Differential Pressure Sensor (MDM290)

• Measuring Medium: Liquid
• Output Signal Type: Analog Output
• Production Process: Integration
• Material: Stainless Steel
• Accuracy Grade: 0.5G
• IP Rating: IP65
• Model NO.: MDM290
• Certification: ISO
• Customized: Customized
• Size: 19mm Diameter
• Usage: Pressure Sensitive Sensor
• Diaphragm Material: Stainless Steel 316L
• Housing: Stainless Steel 316L
• Pin: Silicon Rubber Flexible Wire
• O-Ring: Viton
• Net Weight: ~36g
• Shock: No Change at 10grms, (20~2000)Hz
• Media Compatibility: The Gas, Liquid Which Is Compatible with Stainless
• Pressure Range: 0~35kpa...3.5MPa
• Transport Package: Standard Package for Exporting
• Specification: CE ROSH
• Trademark: Micro Sensor
• Origin: Baoji China
• Production Capacity: 400, 000PCS/Year

Product Description

3.5MPa Low Range OEM Customized Piezoresistive Differential Pressure Sensor (MDM290)

Features
·Pressure range 0~35kPa 3.5MPa
·Constant current/ constant voltage power supply
·Isolated construction, possible to various media
·OEM differential pressure sensor
·316L stainless steel 
·High static pressure 20MPa

Application 
·Industrial process control    ·differential pressure measure   ·gas, liquid pressure measure
·Pressure checking meter    ·Pressure calibrator            ·Ventura and eddy-current flow meter

Introduction
MDM290 piezoresistive differential pressure sensor is OEM differential pressure sensor with stainless steel isolated diaphragm. It has integrated construction, high static pressure, high stability and good reliability. The high and low pressure sides are protected by isolated diaphragm. It can be used for measuring corrosive and conductive flow media. The measured differential pressure is transmitted onto the die through the diaphragm and filling silicon oil, so that the sensor could measure differential pressure precisely. The sensor is tested on the advanced production line, with the popular dimension, MDM290 differential pressure sensors are widely used for industrial process control and differential pressure measure fields, etc.

Electric Performance
1. Power supply: ≤2.0mADC; ≤10V DC
2. Electric connection: 100mm silicon rubber flexible wires
3. Common mode voltage input: 50% of input (typ.)
4. Input impedance: 3kΩ~8kΩ
5. Output impedance: 3.5kΩ~6kΩ
6. Response Time (10%~90%): <1ms
7. Insulation resistor: 100MΩ, 100VDC
8. Overpressure: refer to Order Guide
9. Max. static pressure: 20MPa
10. Zero drift/static pressure: ≤0.5mV/MPa
 
Construction Specification
1. Diaphragm material: stainless steel 316L
2. Housing: stainless steel 316L
3. Pin: silicon rubber flexible wire
4. O-ring: Viton
5. Net weight: ~36g
6. Environment Condition
7. Position effect: deviate 90° from any orientation, zero change ≤0.2%FS
8. Shock: no change at 10gRMS,(20~2000)Hz
9. Impact: 100g, 11ms
10. Media compatibility: the gas, liquid which is compatible with stainless steel and Viton

Basic Condition
1. Media temperature: (25±1)ºC
2. Environment temperature: (25±1)ºC
3. Shock:  0.1g (1m/s/s) Max.
4. Humidity: (50%±10%)RH
5. Local air pressure: (86~106)kPa
6. Power supply: (1.5±0.0015)mADC

Basic Specification

Specification*	Min.	Typ.	Max.	Units
Non-Linearity		±0.15	±0.25	%FS,BFSL
Repeatability		±0.05	±0.075	%FS
Hysteresis		±0.05	±0.075	%FS
Zero output			±3	mVDC
FS output	60			mVDC
Zero thermal error		±1.0	±1.2	%FS, @25ºC
Span thermal error		±1.0	±1.2	%FS, @25ºC
Compensated temp. range	0~50			ºC
Working temp. range	-40~125			ºC
Storage temp. range	-40~125			ºC
Long-term stability		±0.3	±0.5	%FS/year
*testing at basic condition

Outline Construction
(Units: mm)
 
The suggested installation dimension is Φmm

Electric Connection
 
 
 1. The resistance bridge on the left of the dashed is sensor's bridge circuit;
2. MDM290 sensor has no laser trimming board, it compensates zero and temperature drift by outer compensated resistors, the connection to see the above chart; connect zero trimming resistor R3(R4), the other R4(R3) is short circuit as negative power supply; R1 or R2 is zero temperature drift compensated resistor, only one of them is used, the other is open circuit, please select the right resistor according to the specification label enclosed with sensor; R5 is sensitivity temperature compensated resistor. We suggest that please connect the outer resistor and differential pressure sensor as close as possible.
 
Order Guide

MDM290		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
		13		0~3.5MPa		7.0MPa			1.0MPa
				Code		Temperature compensation range
				M		Outer compensated resistor (providing resistor value)
						Code		Electric connection
						2		5-color 100mm silicon rubber flexible wires
MDM290          12              M            2                   the whole spec

Order Note
1. Please notice that one side of the leading wire is High Pressure Side, the other is Low Pressure Side. Or identify High Pressure Side by mark "+", and identify Low Pressure Side by mark "-" carefully. During application, please pay attention that the pressure of high pressure side should be higher than that of low pressure side;
2. Please pay attention to protect the diaphragm, prevent it from damaging;
3. Please do not pull the 6 leading wires.
4. Temperature resistant range of standard Viton O-ring of sensor is -20ºC ~ 250ºC. When working temperature is lower than -20ºC, or sensor is applied in critical environment.


Certificates We Have

Company Overview

Products Family

Applications:

FAQ:
1. Q: Are you a manufacturer or trading company?
    A: We are a 48-year professional manufacturer of 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.