EMERSON 400VP-12 Control System Module

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    • Key Technical Specifications

      表格

      Item	Specification
      Manufacturer	Emerson / Rosemount Analytical
      Model	400VP-12
      Sensor type	Contacting (two-electrode) conductivity sensor
      Cell constant	0.1 /cm (code 12)
      Recommended measuring range	approx. 10 µS/cm … 2,000 µS/cm (0.1/cm cell)
      Maximum conductivity	< 20,000 µS/cm (clean, non-corrosive liquids)
      Electrodes	Concentric titanium (inner 16 Ra, outer 32 Ra)
      Insulator	Glass-filled PEEK
      Body / hex	316 stainless steel
      Process seal	Viton® O-ring
      Process connection	¾ in. MNPT
      Temperature compensation	Pt-1000 RTD, integral (standard; code -54 = Pt-100 optional)
      Electrical connection	6-pin Variopol VP6 quick-disconnect (mating VP cable ordered separately)
      Standard process temperature	0 … 105 °C (32 … 221 °F)
      High-temperature option	up to 200 °C (392 °F) with integral junction box (not on -12 base)
      Maximum pressure	250 psig (1825 kPa abs)
      Vacuum service	down to 1.6 inHg (5.2 kPa), leak rate < 0.005 SCFM
      Insertion length	Standard (extended 5.5 in / 139.7 mm = code -36, not on -12)
      Compatible transmitters	Rosemount 56, 1055, 1056, 1057, 1066-C, 4081-C, 5081-C, 6081-C, Xmt-C
      Weight	approx. 0.5 kg (1 lb)
      Calibration	Factory cell constant measured — no initial field calibration required
      Certifications	Factory-measured cell constant; optional CC/LC/EC calibration certificates

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      Advantages & Features

      • Out-of-the-box accuracy — factory-measured cell constant means no initial calibration on startup.
      • Variopol VP6 quick disconnect — sensor can be removed for cleaning or replacement without touching field cabling.
      • Titanium electrodes + PEEK insulator — robust, corrosion-resistant, cleanable; suitable for clean water service.
      • Integral Pt-1000 RTD — automatic temperature compensation (ATC) for accurate conductivity reading across process temperatures.
      • ¾ in. MNPT screw-in — direct mounting in pipes, tees or optional flow cell / retractable ball-valve assembly.
      • Three cell-constant options available in the family (0.01 / 0.1 / 1.0 /cm); the -12 covers the mid-range.
      • Wide pressure and vacuum range — up to 250 psig and vacuum down to 1.6 inHg.
      • Pairs with Rosemount transmitters — direct plug-and-play with 56/1055/1056/1057/1066-C/5081-C/6081-C.
      • Optional accessories — low-flow cell (24091-02), retractable ball-valve assembly, VP6 cables in 0.8 … 30.5 m lengths, conductivity standards.

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      Typical Applications

      • Conductivity measurement in high-purity / purified water (the 0.01/cm variant) — the 0.1/cm (400VP-12) is aimed at the mid-range
      • Clean cooling water and make-up water monitoring
      • Reverse-osmosis (RO) permeate and feed conductivity
      • Boiler condensate and blowdown monitoring
      • Pharmaceutical / food & beverage water quality
      • General industrial water treatment where contacting (non-inductive) measurement is preferred
      • Side-stream installations using the optional Rosemount flow cell