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TFLS-W11SR1 - Tuning fork level switch.

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Availability: In stock

Lead Time: Same Day

Model Number: TFLS-W11SR1

$496.86
Series TFLS tuning fork level switch 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 the fork comes in contact with 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. Featured in the TFLS is user-selectable fail-safe operation of the contacts. Unit is not affected by vibration from conveying systems, motors, or the movement of material. It can be mounted in any position and is available with factory built extensions for mounting on the top of the storage vessel.

TFLS-W11SR1 - Tuning fork level switch.

Details

PRODUCT INFORMATION

Series TFLS tuning fork level switch 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 the fork comes in contact with 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. Featured in the TFLS is user-selectable fail-safe operation of the contacts. Unit is not affected by vibration from conveying systems, motors, or the movement of material. It can be mounted in any position and is available with factory built extensions for mounting on the top of the storage vessel.

Series TFLS is easy to use with no calibration required and with no mechanical moving parts there is no routine maintenance required. The TFLS is 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. The level switch is also good for applications when the bulk density is too low for a rotating paddle level switch. It can also detect granular material submerged in liquids of low viscosity, for example sand, gravel, or polyester chips in water.


PRODUCT SPECIFICATIONS

Service: Dry powder or bulk materials compatible with wetted materials. Can detect bulk materials submerged in liquid
Sensitivity: Minimum bulk density of 1.8 lb/ft³ (30 g/l), maximum particle size 0.4" (10 mm)
Wetted Materials: 316 SS
Pressure Limits: 145 psig (10 bar)
Temperature Limits: Ambient: -4 to 140°F (-20 to 60°C)
Power Requirements: 90 to 265 VAC, 50/60 Hz; 24 VDC
Power Consumption: 4 VA
Enclosure: Aluminum, powder coated
Enclosure Rating: Weatherproof, NEMA 4X
Switch Type: SPDT
Electrical Rating: 5A @ 230 VAC
Electrical Connection: Screw terminals
Conduit Connection: 3/4" female NPT
Process Connection: 1-1/2" male NPT
Weight: 5.5. lbs (2.5kg)
Indication Lights: External: red LED; Internal: green and red LED's
Sensing Delay: (Maximum) covered probe: 2 seconds; uncovered probe: 3 to 7 seconds
Time Delay: Separate settings for covering and uncovering the probe. Adjustable from 2 to 20 seconds


PRODUCT FEATURES

- No Calibration Required
- Vibrating Fork Design: Great for low bulk density and low dielectric constant products. Will detect products down to 1.8 lb/ft3 (30 g/l)
- Universal Power Supply: One model works with 90 to 265 VAC and 24 VDC
- Adjustable Sensitivity: Can be set to ignore lighter bulk density products and only detect heavier products, such as sand in water
- Status Indication: External LED switch indicator, and internal indicators for normal and alarm status
- Failsafe Setting: Output switch can be set for Normally Open or Normally Closed condition on loss of power
- Time Delay: Prevent false alarms from material surges.



PRODUCT APPLICATIONS

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.



EXAMPLE TFLS W 1 1 ES 1 012 M20 Series TFLS-W11ES1-012-M20 Tuning Fork Level Switch, weatherproof enclosure, SPDT, 24 VDC, 12" 316SS extension probe, 1-1/2" male NPT, with M20 conduit connection.
SERIES TFLS               Tuning Fork Level Switch
ENCLOSURE
  W             Weatherproof
SWITCH     1           SPDT
POWER SUPPLY       1         24 VDC, 90-265 VAC
PROBE TYPE         SR
ES
      Standard Rod, 316SS
Extension, 316SS
PROCESS
CONNECTION
          1     1-1/2" Male NPT
PROBE EXTENSION
LENGTH
             
006
012
018
024
036
048
  None
6 Inch
12 Inch
18 Inch
24 Inch
36 Inch
48 Inch
OPTIONS               M20 M20 Conduit Connection

Additional Information

Lead Time Same Day

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