Vibration level switch

Mononivo® - MN 4020

Application area

The vibration rod Mononivo® MN 4020 is used in storage and process vessels as a full, demand, and empty detector in all bulk solids. A stainless steel probe extension allows the vibration rod to work in a variety of aggressive environmental conditions. Due to its high sensitivity, the probe is particularly suitable for use in very light bulk solids.

Technical Data

Measurement principleVibration (Rod)
Measuring taskPoint level measurement
VersionShort extension
MediumSolids
Mounting position
  • horizontal
  • angled (in the cone)
  • in down Pipes
Ambient temperature-40°C … +60°C (-40°F … +140°F)
Process temperature-40°C … +150°C (-40°F … +302°F)
Process pressure-1 bar … +16 bar (-14.5 psi … +232 psi)
Minimum sensitivity> 20 g/l (> 1.2 lbs/ft3)
Housing typestandard
Housing materialAluminium
Housing protection ratingIP67, NEMA Type 4X
Threaded connection
  • ≥ G 1″
  • ≥ NPT 1″
Flange connection
  • ≥ DN100
  • ≥ 2″
Hygienic fittings≥ Triclamp 2″
Wetted materials
  • Stainless steel 1.4305 (303)
  • Stainless steel 1.4404 (316L)
Mechanical loadoscillator rod: 0,4 kN
Accuracy
Min. immersion length160 mm (6.3″)
Max. immersion length160 mm (6.3″)
Power supply
  • universal voltage (22…45V DC / 21…230V AC)
  • 20…40V DC
Signal output
  • Relay DPDT
  • Transistor PNP
Approvals
  • CE
  • General purpose
  • ATEX
  • IEC-Ex
  • TR-CU
  • FM
  • FMc
Explosion protectionDust Ignitionproof (Ex t)
Hygienic / Pharma
Ship approval
Overfill protection
SIL qualification
Further approvals
User Interface
Optical indicatorLED
Adjustment possibility
  • adjutable sensitivity
  • switchable logic (Fail Safe High – Fail Safe Low)