The 8112 is a vibrating level switch for liquids,using a tuning fork for level detection.It is designed for industrial use in areas of process technology and can be used in liquids.Typical applications are overfill or dry run protection.The Type 8112 is available with different sensorlength using tube extension. The rightlength can be adapted thanks to a lock fitting.Due to the simple and rugged measuringsystem, the 8112 is virtually unaffected by thechemical and physical features of the liquid.It works even under unfavourable conditionssuch as turbulence, air bubbles, foam generation,buildup or varying products.

Materials

Housing / Cover / Seal ring

Wetted parts

Tuning fork and process fitting

Extension tube ø 21.3

Process seal

PBT, Stainless steel 316L (1.4435) / PC / EPDM

Stainless steel 316L (1.4435)

Stainless steel 316L (1.4435)

FKM

Weight approx. 890 g + approx. 110 g/m (tube extension)

Electrical connections 1 or 2 cable glands M20 x 1.5 (depends on output version)

Process fitting Thread G, NPT 3/4”, G, NPT 1” or Clamp 2”

Surface finishing quality Ra < 3.2 μm (thread) / Ra < 0.8 μm (Clamp)

Extension tube length 200 ... 1000 mm

Viscosity dynamic 0.1 up to 10000 mPa.s (requirement: with density 1)

Density 0.5 up to 2.5 g/cm3 (selected by DIP switch) or 0.7 up to 2.5 g/cm3

Fluid temperature -50 up to 150°C (-58 to 302°F)

Fluid pressure -1 to 64 bar (-14.51 to 928.64 PSI)

Accuracy

Hysteresis

Delay time / Frequency

Approx. 2 mm with vertical installation

Approx. 500 ms / Approx. 1200 Hz

Output Double relay output or Namur output

Environment

Ambient temperature -40 up to +70°C (-40 to 158°F) (Operating);

-40 up to +80°C (-40 to 176°F) (Storage)