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Micro Sensor Co.,Ltd
Catalog excerpts
MICROSGNSOR MDM490 Piezoresistive Differential Pressure Transmitter(V2.0) MICROSGNSOR MDM490 Piezoresistive Differential Pressure Transmitter(V2.0) MDM490 Piezoresistive Differential Pressure Transmitter Features . Full stainless steel construction, compact size, easy installation; • Laser welding, full-sealed construction; protection IP65; * Using piezoresistive differential pressure sensor, 316L isolated diaphragm; • Temperature compensation and aging, stable performance; • Zero and span adjustable outside; • Ex-proof version MDM490 conforms to GB3836.4 Exia II CT6 Ga standard; ex-proof certificate is approved; • Ship-use product conforms to CCS Rules of Classification of Sea-going Steel Ships (2006) ; ship-use certificate is approved; • CE and ROHS certificates Introduction MDM490 uses piezoresistive differential pressure sensor as sensing element. Silicon oil is filled in between die and two diaphragms, when measured differential pressure is added on two diaphragm, the pressure could be transferred onto die through silicon oil. Sensor die connects with amplifier circuit through wires, using semi-conductor's piezoresistive effect, transforming differential pressure signal into electric signal. The whole product is used for differential pressure measurement of petroleum, chemi-industry, power station and hydrology, etc. Specification MICRO SENSOR CO.,LTD
Open the catalog to page 1
MDM490 Piezoresistive Differential Pressure Transmitter(V2.0) Compensation temp. Operation temp. Storage temp. Electric Characteristic Power supply: 2-wire 15～28VDC 3-wire 15～28VDC Output signal: 2-wire 4～20mADC 3-wire 0/1～5VDC，0～10/20mADC Electric connection: plug connection or Φ7.2mm 7-pin cable Response time（10%～90%）: ≤1ms Insulation resistor: 100MΩ，50VDC Construction Material Housing: stainless steel 1Cr18Ni9Ti Diaphragm: stainless steel 316L O-ring: Viton Filled liquid: silicon oil Pressure port: G1/4 female Environment Condition Shock effect: ≤1% at 3gRMS, 30～2000Hz Impact: ≤1% at...
Open the catalog to page 2
MICROSGNSOR MDM490 Piezoresistive Differential Pressure Transmitter(V2.0) MDM490 Piezoresistive Differential Pressure Transmitter C4B2 the whole spec Notes 1. We suggest to install tri-valve between the measured point and transmitter to protect the media adding on transmitter’s positive and negative cavities slowly; 2. We suggest to make two pressure ports horizontally to reduce installation direction effect; 3. Please pay attention that the static pressure should be less than 20Mpa, transmitter positive and negative cavity should be in the rating pressure range; 4. Please note ex-proof,...
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