100% Employee Owned, Founded 1954

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Protos 3400

Product Overview

The Protos 3400 from M4Knick is a modular 4-wire, multi-parameter transmitter universal measuring system. The unit is safe in hazardous areas and features 3 user-selectable module slots for measuring, extension, and communication making it a flexible solution for any application.

Key Features

  • 4-wire FM/CSA approved, intrinsically safe, a non-incendive system with active outputs; suited for Class 1 Div 2 Groups ABCD
  • Stainless steel enclosure, either with a hygienic surface or corrosion-proof powder coating
  • Measurement with analog or Memosens sensors
  • Memory card for storage and transfer of configurations, software updates, and measurement data
  • 2 current outputs and 4 relay contacts as standard
  • NAMUR-compliant user interface
  • 2-channel measurement recorder
  • HOLD function
  • Sensocheck sensor monitoring
  • Sensor network diagram
  • Adaptive calibration timer
  • Wear diagram
  • Logbook
  • Data recording and backup according to FDA 21
  • CFR Part 11
  • Profibus PA / FOUNDATION Fieldbus

Technical Resources

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In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.