MDM490 Differential Pressure Transmitter
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Catalog excerpts

MDM490 Differential Pressure Transmitter - 1

Introduction MPM4780 Intelligent Transmitter is a highly integrated measurement product with high stability.It uses intelligent processing circuit, the most advanced design and manufacturer technology of piezoresistive pressure transmitter, and is available for pressure signal and temperature signal output that in accordance with standard MODBUS-RTU protocol. Featuring integrated design, standard digital output, great compatibility, small size, high accuracy, light weight and wide pressure range, it can be applied in many fields which involve high accuracy required measurement of fluids. It also can take replace of pressure and level transmitters in the form of MODBUS protocol output by providing pressure type and level type measurement for users. Features • RS485 communication interface, Standard MODBUS-RTU Protocol output; • Netting available; • Short protection and reverse polarity protection; • Full stainless steel construction, compact size, light weight • Good output consistency and replaceability. • Available for calibration and parameter change on site through matched soft of upper computer. Specification Range: -100kPa...0kPa~10kPa...100Mpa (Pressure); 0m~3.5m...200mH2O (Level) Pressure type: Gauge / Absolute Over pressure: 1.5 times FS / 110MPa (min. value is valid) Accuracy: ±0.5%FS Stability: ±0.3%FS/YEAR Zero thermal drift: ±0.04%FS/°C(<100kPa); ±0.03%FS/°C(>100kPa) Span thermal drift: ±0.04%FS/°C(<100kPa); ±0.03%FS/°C(>100kPa) Output: RS485 Interface (MODBUS-RTU protocol) Application Temp.: -10°C~60°C Measurement Error: ±2°C Storage Temp.: - 40°C~85°C MICRO SENSOR CO.,LTD http: //www. microsensor.cn Add: No.18,Yingda Road Baoji.P.R.China, 721006 Tel: +86 917 3600739/3600832 Fax: 3609977

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MDM490 Differential Pressure Transmitter - 2

Power Supply: 9V~28V DC, 15V DC (recommended) Insulation: 100V, 100M Shock: 20g, 25Hz~2000Hz Impact: 100g, 11ms Protection: IP65(B1,B2); IP63(B3); IP68(Level) Electric Connection: Cable or Junction Box Weight: about 160g Housing: S.S. 316L Diaphragm: S.S. 316L O- Ring: Viton ① Shrinking range is 1/5 basic range, no range extension. ② For special temperature requirement, please feel free to contact our company. Outline Construction Unit:mm Electric Connection Transmitter connecting the outside by plug or cable: Function +V -V RS485B RS485A Inner Plug Pin 4 Plug Pin 1 2 Color 1 (Black) 2...

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MDM490 Differential Pressure Transmitter - 3

Assistant Software MPM4780 Transmitter Software RS232/485 Conversion module is used to communicate with RS485 interface transmitter, available for real time pressure/temperature display and calibration on site. Some parameters calibration was done before being transported at factory, so users do not have to modify them. When mistaken operations happen,users can push “Back to Factory Setting”to turn it to factory setting. Besides, the software keeps Data Record section, which allow users to set the record interval freely for recording and saving data, and the data can be saved in the forms...

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MDM490 Differential Pressure Transmitter - 4

MPM4780 Intelligent Level Transmitter Range Measure Range 0m~3.5m..,200m H2O [0—XmH2O]L X=actual range, L= cable length, suggested L-X= (1—2) m Code Output Signal R8 RS485 Communication Interface, MODBUS protocol Construction Material Diaphragm Pressure Port Housing S.S.316L S.S. S.S. Code Others C1 M20*1.5 male, end face seal C5 M20*1.5 male, waterline seal Order Note: 1. Please note transmitter type (Pressure/level) in the order. 2. Please note in the order if the user needs zero pressure as negative pressure; 3. Please note the type of junction box if wiring box needed;...

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