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Address：5th Floor, Baoli Building, No. 3162 Longgang Avenue, Shenzhen, P. R. China.
Tel：+86 755 28407683

Tuning Fork Level Switch

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Fork-11 Ultra-high Temperature Tuning Fork Level Switch

Fork-11 Ultra-high Temperature Tuning Fork Level Switch. It is featured with the function of water cooling (air cooling) and is able to work reliably under ultra-high temperature conditions that up to 400℃.

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Fork-11 Ultra-high Temperature Tuning Fork Level Switch. It is featured with the function of water cooling (air cooling) and is able to work reliably under ultra-high temperature conditions that up to 400℃.
Fork-11 Ultra-high Temperature Tuning Fork Level Switch works in the same principle as Fork-11 series. The difference is an innovative cooling sleeve pipe is equipped. One end of the cooling sleeve pipe is welded to the process connection (flange) with air/water intake and vent, another end is connected with the vibrating probe. The air or water flow enters the inside of the vibrating probe through the capillary copper tube to take heat away, to cool the piezoelectric ceramic and wires to the allowable working temperature. This design makes the Fork-11 Ultra-high Temperature Tuning Fork Level Switch can operate reliably at a temperature up to 400℃, and significantly expands its application field.
●　High temperature resistant design, process temperature up to 400 ℃.

●　Reasonable design of tines and precisely adjusted of fork resonant frequency. The lowest measurable density can be as low as 0.008g/cm³.

●　Particularly suits for level measurement of powdery, fine-grained bulk solids, can effectively avoid material buildup.

●　Strong self-diagnostic function helps to accurately locate the fault.

●　Simple installation and maintenance free.

●　With CE certificates, gas and dust Flameproof Enclosure and Intrinsic Safety certificates.

●　Made of strong corrosion resistant material 316L.

Applicable medium	Types of the Medium	powders or granular solids
	Density	＞0.008g/cm³
	Medium size	Max. 10mm
Fork data	Vibrating frequency	～140Hz
Fork data	Fork length	150mm
Switching Delay	When immersed	0.5s
Switching Delay	When laid bare	1s
Power supply	Relay output	20～253VAC/20～72VDC
	Two-wire	10～36V DC
	Maximum power consumption	8VA (AC)；1.5W (DC)
Output	Relay output	DPDT, 5A/253V AC/24V DC
Output	Two-wire	8/16mA, Alarm<2.3mA
Working environment	Process pressure	-1～25bar
	Process temperature	Regular: -50～150℃ High temperature: -50～250℃ Ultra high temperature: -50～400℃
	Ambient temperature	-40～80℃
	Storage and transport temperature	-40～80℃
Overvoltage protections	Relay output	Category III, class I
Overvoltage protections	Two-wire	Category III, class II
Approvals	Protection rating	IP66/IP67
	Explosion-proof types	Flameproof Enclosure: Ex d IIC T6~T1 Gb, Intrinsic Safety: Ex ia IIC T6~T1 Ga
	CE	LVD and EMC certificates
Materials	External Housing	Aluminum Alloy
	Ground terminal	316L
	Process fitting	316L
	Fork body	316L
	Process seal	Klingersil C-4400

Level measurement of powdery, fine-grained bulk solids and (ultra-low density) particles with process temperature within 400 ℃.
For more information, please Contact：sales@jiweimeter.com

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