| Prod Model: |
MDM290 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| 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 |
Product Description
Piezoresistive Differential Pressure Sensor (MDM290)
Features
·Pressure range 0~35kPa3.5MPa
·Constant current 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 environm
Micro Sensor Co., Ltd, the leading manufacturer of piezo-resistive pressure sensors and transmitters in China, was founded by Sino-US joint venture in 1993. We are providing pressure sensing & measuring solutions to customers all over the world.
With Digital Wide-Temperature Compensation, Non-linearity Correction and Data-Collection by Bus Operation, we supply users OEM pressure sensors, pressure transmitters, level transmitters, measuring and controlling instruments, which have high quality and reliable performance in the local on-site environment.
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