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Model CTF Mini Tuning Fork Level Switch
Brand: Dwyer Instruments, LLCThe Model CTF Mini Tuning Fork Level Switch is an ideal choice for level control of powders.
The CTF incorporates a piezoelectric crystal that vibrates the fork at its natural frequency. When the fork comes in contact with a material, the vibration is dampened and the switch changes state. As the fork becomes free of material, the switch changes back to its normal state.
The unit is not affected by vibration from conveying systems, motors, or the movement of material. Its compact size and DIN connection allow for application in places a larger tuning fork level switch may not be suitable, providing great versatility.
The Model CTF is easy to use with no calibration required, and no mechanical moving parts mean no routine maintenance.
The CTF is not affected by the dielectric constant of the sensed material, making it superior to a comparable capacitance level switch for applications where the dielectric constant is low, more than one material is being used in the single vessel, and when material moisture content can change.
The level switch is also great for applications when the bulk density is too low for a rotating paddle level switch, making it the ideal choice for low density bulk solids and liquids. Comes standard with a user friendly PNP/NPN configurable output..
Features- DIN connection and compact size allows for application in places a larger tuning fork level switch may not be suitable, providing great versatility
- No mechanical moving parts with no routine maintenance required
- Unaffected by the dielectric constant of the sensed material, making it superior to a capacitance level switch for applications where the dielectric constant is too low, where there is more than one material being used in one vessel, and when material moisture content can change
- Ideal for applications where the bulk density is too low for a rotating paddle level switch
Specifications
Brand
Ambient Temperature Range
- -40° to 60° C (-40° to 140° F)
Consumption
- 0.5 W
- 10 mA at 12-24 Vdc
Electrical Connectors
- DIN 43650: Valve Plug (Conduit Connection)
Electrical Rating
- 350 mA at 12-55 Vdc
Enclosure, Body Material
- Aluminum Painted
Environmental Protection
- IP65
Indication
- Red LED: External
Media
- Dry Powder Compatible with Wetted Materials
NPT Connection
- 1” NPT Male
Power Requirement
- 12-55 Vdc
Process Connection Material
- 304 Stainless Steel
Process Temperature
- -40° to 100° C (-40° to 212° F)
Response Time
- 1 to 3 seconds
Sensitivity
- 4.4 lbs/ft^3 (70 G/l): Min. Bulk Solid Density
Supply Pressure
- psi: 600 (kPa: 4,000, bar: 40)
Switch Type
- NPN/PNP, 3-Wire
Wetted Materials
- 316L Stainless Steel
- Lime, styrofoam, tobacco, dry cereals, sugar, animal feed, milk powder, flour, insulation, cement, paper shavings, plastic granules, sawdust, carbon black, light fibers, detergent powders, dyes, chalk, silica, sand, wood chips
- Chemical processing
- Pulp and paper processing
- Mining
- Food and beverag