TFLS-W11SR1-018

TFLS-W11SR1-018 is a series TFLS tuning fork level switch with 18" probe extension. It is ideal for level control of powders and fine grained solids, especially those with a low bulk density. The TFLS incorporates a piezoelectric crystal that vibrates the fork at its natural frequency, when contact material is present it dampens the vibrations and the switch changes state. The TFLS tuning fork level switch is not affected 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. Vibrating fork design is ideal for low bulk density and low dielectric constant products, detecting products down to 1.8lb/ft3 (30g/l). Typical applications include pulp and paper processing and food and beverage.

• External LED switch indicator and internal indicators for normal and alarm status
• No calibration required for quick and easy installation
• No mechanical moving parts with no routine maintenance required
• Ideal for applications where the bulk density is too low for a rotating paddle level switch
• Adjustable sensitivity can be set to ignore lighter bulk density and only detect heavier products
• Unit is not affected by vibration from conveying systems, motors, or the movement of material
• Available with factory built extensions for mounting on the top of the storage vessel
• Failsafe setting with output switch that can be set for NO or NC condition on loss of power
• Time delay prevents false alarms from material surges
• Universal power supply works with 90-265VAC and 24VDC