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SC38 Series Tuning Fork Level Switch
Brand: FineTek
The piezoelectric component is used to drive the tuning fork and feedback signal, which produces the resonation on the fork.
When the fork comes into contact with a material, the fork will release some frequency signal as feedback.
It will be converted into the output of the contact signal when the circuit detects the frequency decrease of the signal.
The product relies on the damping effect by covering the testing material on the tuning fork which reduces the vibration frequency of the tuning fork and outputs a switch signal.
Therefore, there is no signal amplification circuit inside, which can eliminate the trouble of frequent sensitivity adjustment due to the material change.
Specifications
Brand
Ambient Temperature Range
- -40° to 85° C (-40° to 185° F)
Approvals & Certifications
- ATEX Ex ia IIC T3~T6 Ga
- CE
- NEPSI Proof No. GYB14.1796X
BSP Connection
- 1” BSP Male (25 A)
- 1-1/2” BSP Male (40 A)
- 1-1/4” BSP Male (32 A)
- 2” BSP Male (50 A)
- 2-1/2” BSP Male (65 A)
- 3” BSP Male (80 A)
- 3/4” BSP Male (20 A)
- 4” BSP Male (100 A)
- 5” BSP Male (125 A)
- 6” BSP Male (150 A)
Conduit Connection
- 1/2” NPT
- 1/2” PF
Consumption
- < 600 mW - SC380 Series
- < 830 mW - SC381 Series
- 13 W, Max.
Density Range
- Applicable Density Liquid: ≥ 0.5 g/cm³
- Applicable Density Liquid: ≥ 0.7 g/cm³
Diameter
- External Diameter of Cable Applicable to Conduit: 0.23 to 0.39” (6 to 10 mm)
Electrical Protection
- Input Protection: Reversed Power Supply Protection for SC380 / SC381 Series
- Overvoltage Protection: Overvoltage Category III
Electrical Rating
- NPN/PNP/Transistor: 350 mA at 55 Vdc
- Relay: 6 A at 250 Vac
- Relay: 6 A at 28 Vdc
Enclosure Finish
- ECTFE
- PFA
- PTFE-Coated
Environmental Protection
- Explosion-proof
- Intrinsically Safe
- IP66
- IP67
Hysteresis
- Hysteresis Band: Approximately 2 mm (0.08”)
Materials of Construction
- 304 Stainless Steel
- 316 Stainless Steel
- 316L Stainless Steel
Measuring Error
- ± 1 mm, Max.
NPT Connection
- 1” NPT Male (25 A)
- 1-1/2” NPT Male (40 A)
- 1-1/4” NPT Male (32 A)
- 2” NPT Male (50 A)
- 2-1/2” NPT Male (65 A)
- 3” NPT Male (80 A)
- 3/4” NPT Male (20 A)
- 4” NPT Male (100 A)
- 5” NPT Male (125 A)
- 6” NPT Male (150 A)
Operating Voltages
- 19-253 Vac/dc, 50/60 Hz
- Intrinsically Safe Signal 8/16 mA: 11-36 Vdc
- NPN/PNP: 10-55 Vdc
Output
- 8/16 mA for SC380 Series
Pressure Range
- psi: 580 (kPa: 4,000, bar: 40) - Max.
Process Temperature
- -40° to 150° C (-40° to 302° F)
PT/PF/PS (JIS) Connection
- 1” PF Male (25 A)
- 1” PT Male (25 A)
- 1-1/2” PF Male (40 A)
- 1-1/2” PT Male (40 A)
- 1-1/4” PF Male (32 A)
- 1-1/4” PT Male (32 A)
- 2” PF Male (50 A)
- 2” PT Male (50 A)
- 2-1/2” PF Male (65 A)
- 2-1/2” PT Male (65 A)
- 3” PF Male (80 A)
- 3” PT Male (80 A)
- 3/4” PF Male (20 A)
- 3/4” PT Male (20 A)
- 4” PF Male (100 A)
- 4” PT Male (100 A)
- 5” PF Male (125 A)
- 5” PT Male (125 A)
- 6” PF Male (150 A)
- 6” PT Male (150 A)
Repeatability
- 0.5 mm
Sensor, Probe Length
- 0 to 9.8 feet (0 to 3 metres)
Sensor, Probe Style
- Tuning Fork
Storage Temperature
- -40° to 85° C (-40° to 185° F)
Switch Type
- 2 Sets of SPDT Relay Output
- 3-Wire NPN/PNP Transistor Output
Viscosity
- 10,000 mm²/S (10,000 cSt) - Max.
- Chemical Fiber Industry
- Food Industry
- Pharmaceutical Industry
- Rubber Industry