HTM50 Self-diagnostic 316L Relay Output Vibrating Fork Level Switch

HTM50 vibrating fork level switch is specially designed for powdery and fine-grained bulk solids, such as sands, fine raw materials in chemical industry, flours, salts etc., successfully handles lightweight media applications that are difficult to measure or detect like fine low density media with density of 0.008g/cm³

Economic and practical, cost-effective
Free from foam, bubbles, viscosity, vibration and liquid properties
The design based on the change of detection frequency has high reliability
Simple operation, safe and reliable, strong versatility

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Model:
HTM50
Brand:
ZYZL
Code:
ZYZL-HTM50

Powdery Fine-grained bulk solids Level Detectors Relay Output Level Detectors Relay Output Level Switch level transmitter Low bulk densities Powdery fine-grained bulk solids Avoid buildup Two-wire Level Switch

Description

Specifications

Dimensions

Ordering Code

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Working Principle

The HTM50 vibrating fork level switch is based on the design principle of detecting the change of vibration frequency when the tuning fork body is immersed in the medium. That is, when the fork is in contact with the measured liquid, the resonant frequency of the fork is significantly reduced, and the change of vibration frequency is directly reflected in the output signal of the piezoelectric detection device. The detection circuit determines the change of the required rate and outputs a switching signal.

Characteristics

(1) Reasonable design of tines and precisely adjusted of fork resonant frequency. HTM50 can be used in light powders and flakes with bulk densities as low as 0.008g/cm³.

(2) Particularly suits for level measurement of powdery, fine-grained bulk solids, can effectively avoid buildup.

(3) Industry-leading performance for high temperature industrial environments, can tolerate process temperature up to 250℃.

(4) Strong self-diagnostic function helps to accurately locate the fault.

(5) Easy installation and maintenance free.

(6) Made of strong corrosion resistant material 316L.

Application

(1) EPP and EPS processes in foam molding machines and plastic forming machines.

(2) Zircon sand and petroleum coke.

(3) Ultra-low density particles and powders.

(4) After spraying PTFE on the fork, it is especially suitable for fumed silica level measurement. The density of fumed silica is as low as 0.01g/cm³, and the lowest detectable density of LTM50 is 0.008g/cm³,which fully meets the measurement requirements of fumed silica working conditions.

Housing	- Aluminum die-casting housing	ADC-12
Housing	- Ground terminal	316L
Seal	Seal between housing and housing cover	silicone
Process fitting	- Thread	316L
Process fitting	- Flange	316L
Probe	- Tuning fork	316L
	- Extension tube	316L
	- Temperature extension tube	316L
Instrument weight	0.8 ～ 4KG
Measuring frequency	approx. 140 Hz
Ambient conditions	Ambient temperature on the housing	-40～80℃
Ambient conditions	Storage and transport temperature	-40～80℃
Process conditions	- Process pressure	-1～25bar
	- Process temperature(Normal temperature)	-50～150℃
	- Process temperature(High temperature)	-50～250℃
Sensitivity switch (The lowest density)	- High density	≥0.02g/cm³
Sensitivity switch (The lowest density)	- Low density	≥0.008 g/cm³
Switch Mode	- High	overfill protection
Switch Mode	- Low	dry run protection
Switching delay	- When immersed	0.5S
Switching delay	- When laid bare	1S
Output	- Electronics Relay (DPDT), Two-wire
Operating voltage	- Relay	20～253VAC/20 ～ 72VDC
Switch power	- Min	50mW
	- Max	750VAAC, 54W DC
	- Two-wire	10～36VDC
Cable entry/plug	- Cable entry	M20×1.5，1/2NPT
Cable entry/plug	- Plug	M20×1.5，1/2NPT
Electrical protective measures	- Protection rating	IP66/67
Protection class	- Overvoltage category	III
	- Relay	I
	- Two-wire	II

Attestation	P	Non-explosion-proof type
	A	Native safety type (Ex ia IIC T6 Ga)
	G	Buromproof type (Ex db IIC T6 Gb)
Process temperature	C	（-50～150℃）
Process temperature	H	（-50～250℃)
Procedure linkage	TA	TG thread G 1 ½ '' A
	TB	TN Thread 1 ½ '' NPT
	TC	Thread, R 1, ½"
	FA	The Flange DN50 PN40
	FB	The Flange DN80 PN40
	FC	The Flange DN50 PN16
	FD	The Flange DN80 PN16
	XX	Customer custom
Power supply and output	4	Second-line system 8 / 16 mA (10-36 VDC)
Power supply and output	6	Relay (20~72V DC / 20~253V AC)
Enclosure / protection grade	A	Aluminum alloy / IP66/IP67(0.2bar)
Cable inlet	M	M20×1.5
	N	NPT 1/2
	Y	Customer custom
Depth of penetration	S	Standard type (220mm)
	L	Extended form (240mm L 2000mm) with optional insertion depth
	K	Extended form (2000mm L 6000mm) with optional insertion depth
	Y	User Custom
Special option	XXX	Software release