MTF Series

Hycontrol's MTF Series are simple yet highly effective vibrating level switch devices for liquids. A piezoelectric crystal forces a blade to oscillate at its fundamental frequency (also called natural resonance). When the blades come into contact with the process medium, this dampens the oscillation of the blade; the electronics sense the change in frequency which causes the unit to switch.

The electronic output options allow the user to switch a load on/off or to interface directly with a PLC. The units can be programmed to sense high or low level and failsafe high or low, with adjustable sensitivity to eliminate false switching.

As the damping effect (resistance to vibration) of low viscosity liquids is very low, Hycontrol's MTF devices use two relatively wide blades to sense the presence of liquid levels. These blades can be short in length for minimal intrusion into the vessel, or use in pipes.

MTF Series Vibrating Probes are ruggedly-designed switch sensors that are used for detection of liquid levels throughout the process industries and can be customised for many applications, including corrosive, hazardous or hygienic environments. By using the probes as high or low failsafe switch overfilling of tanks and dry run of pumps can be prevented.

They are suitable for level detection of free-flowing liquids. The switches will control filling and emptying functions, as well as generating failsafe alarms to provide either overfill or empty tank protection. There are several probe length options up to a maximum of 3 metres (10 feet). ATEX options are also available.

The PNP/NPN transistor output versions can be connected directly to PLC systems or relay units. MTF vibrating forks can fulfil switching tasks of high-current loads with the help of Switching Isolators. The HYC-MTF-SI-E EExia Intrinsically Safe Switching Isolator is designed to serve the EExia-rated vibrating forks.

MTF Series

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  • No moving parts to wear
  • Little maintenance required
  • Low cost
  • 1” mounting suitable for pipes or tanks
  • Optional hygienic mounting for food industry use
  • Simple to install
  • Small fork size for minimal intrusion into the vessel
  • Halar® (ECTFE) coating option for chemical resistance
  • Unaffected by environmental changes
  • Specific frequency avoids false switching
  • Bi-coloured LED shows the status of the switch
  • 2-wire AC and 3-wire DC versions available
  • Magnetic test point
Standard Length :
69 mm - 3 m

Liquid Viscosity :
0.2 to 10,000 cps

Maximum Temperature :
-40ºC to +130ºC

ATEX Option :

TF & MTF Series Vibrating Level Switches for Liquids - Datasheet
MTF Series Vibrating Level Switches for Liquids - Manual v2.4

No Documents in this section

ATEX Approval - HYCMTF
ATEX Approval - HYC-PKK-312-8Ex Isolator