Mid-West Instrument
Tel: (586) 254-6500 · Fax: (586) 254-6509
6500 Dobry Dr., Sterling Heights, Michigan 48314
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Differential Pressure Transmitter  Series 700
Model 700 Model 700
Literature Links

Product Bulletin Bulletin_700_11.pdf

Installation/Operation

iom_bul700_A.pdf

Models 700, 710, 715
Mid-West Instrument Model 700 Wet/Wet Differential Pressure Transmitter utilizes a piezoresistive differential pressure sensor sensing element with stainless steel isolated diaphragm. Silicon oil is filled in between die and two diaphragms. The measured differential pressure is transmitted onto the die through the diaphragm and silicon oil. The signal output generated by the piezoresistive bridge sensor is amplified into a useable voltage or 4-20 mA output as specified by customer. 1 Year Limited Warranty
Common Applications Monitor Differential Pressure Across:
  • Filters
  • Local Flow Indication
  • Factory Pneumatic Air
  • Heat Exchangers
  • Strainers, Pumps
  • Pitot Tubes
  • Level Applications
Product Features
  • Available Ranges:
    0-5 PSID (0.35 bar) to 0-300 PSID (0-20.0 bar)
  • Use with Liquid or Gas media compatible with material of construction
  • Full stainless steel construction, compact size, easy installation
  • Laser welded, fully-sealed construction: NEMA 4X (IP65)
  • Utilizes Piezoresistive Differential Pressure Sensor Isolated Diaphragm
  • Zero Adjust / Potentiometer ±5%
  • Span Adjustable / Potentiometer ±5%
  • CE Certified to EMI / EMC Directive
  • LCD or LED display available upon request
  • Maximum Overpressure:
    (+) Hi-Side equals 2 times specified DP range
  • Maximum Overpressure:
    (-) Low-Side is equal to specified DP range
  • Maximum Static Pressure 2,900 PSI
  • Operating temperature limits 14 F to 175 F.
  • Storage temperature is -40 F to 200 F
  • Sensor is temperature compensated from 32 F to 122 F
  • Model 700 is Manufactured in China
It is recommended to install a 3 valve manifold between point of measurement and the transmitter.
Materials Construction
  • Pressure Port & Housing: 321 Stainless Steel
  • Diaphragm: 316L Stainless Steel
  • O-Ring: Viton
  • Standard Process Connections: ¼ Female BSPP
    (¼ BSPP x ¼ FNPT & ¼ BSPP x ½ FNPT S.S. Adapters Available)
  • Fill liquid: Silicon Oil

Available Electrical Specifications:

  • Power Supply: 2-Wire 15~28 VDC
  • 3-Wire 15~28 VDC
  • Output Signals: 2-Wire 4~20mADC,
  • 3-Wire, 0~5VDC, 1~5VDC, 0~5VDC
  • 0~10VDC, 0-10mADC and 0-20m ADC
  • Electrical Connections: Din Plug 43650 or 1.5m 4-pin cable
  • Response Time: (10%~90%) <=1ms
  • Insulation Resistance 100MΩ, 50VDC
  • CE Marked in Accordance With EMC Directive