Magnetic Float Level Switch Is Used for Liquid Level Alarm

• Customization: Available
• Type: Float
• Contact: Contactless
• Model NO.: Magnetic Float Level Switch
• Output Signal Type: Switching Type
• Production Process: Normal Wirewound
• Feature: SemiConductor
• Material: Stainless Steel
• IP Rating: IP65
• Certification: CE
• Customized: Customized
• Transport Package: Carton Packaging
• Specification: 50.00cm * 50.00cm * 30cm
• Trademark: Vacorda
• Origin: China
• HS Code: 9026100000
• Production Capacity: 400 Pieces Per Week
• Package Size: 50.00cm * 50.00cm * 30.00cm
• Package Gross Weight: 3.000kg

Product Description

Working principle
The UHK magnetic float level switch consists of a reed switch and a magnetic float. It is based on the buoyancy principle, using a floating ball with a magnetic component to drive the reed switch to open or close at each corresponding position in the measuring tube with the liquid level lifting, thereby realizing the detection and control of the position of the liquid level.

The UHK magnetic float switch can be configured with up to 8 switches for 8-point detection. The magnetic float level switch operates without direct contact with the measured medium, the contacts are not mechanically worn, and can operate without an external power supply.

Features
1. No external power supply, passive output contact;
2. Long life span, stable and reliable operation, easy installation, almost no maintenance
3. Independent of mediums' physical and chemical status.
4. Applicable for all kinds of bad medium environment with density ≥0.5g/cm³.
5. Available for interface detection of mediums with two different densities. 
6. Wide application range. Pressure 0~PN160 (max. up to PN320), temperature -40~+150 ° c;                                   
7. At most 8 detecting points, delivering signal independently.
8. Anti-explosion design.
9. OEM Customization.

Application
UHK magnetic float level switch and pontoon level switch are made of different materials, and can be used in almost all strong and weak corrosion-resistant mediums and none corrosive mediums.

The magnetic float switch condition
Switch condition in magnetic float level switch is normal open type, normal closed type, and transform type, which is defined as follows:
Normally open type(SPST)---From the normal level,float rises or falls and when it passes the switch, the connection will close.
Normally close type(SPST)---From the normal level,float rises or falls and when it passes the switch, the connection will switch off
Conversion type(SPDT)---When float passes the location of switch, the condition will convert.(Tubular type's standard configuration is conversion type)

Measure for protecting contactor of magnetic level switch
In order to protect magnetic switch well, avoiding damage of contactor. User should take protecting measure as the following sketch.


Technical Parameter

Switch point type:	AO -- Normally open (250VAC 0.5A 20W ) SPST
	AC -- Normally closed (250VAC 0.5A 20W ) SPST
	C -- Conversion type (250VAC 1.0A 60W) SPDT
Note: Voltage, current, power parameters are the maximum value. The switching voltage, switching current should not surpass switch wattage restriction.
Maximum switch frequency	<=1*10^9
Switch error	<=±8^±2mm
Min space between switches	50mm(customize while space is less than 50mm)
Transmitting distance	>2000m
Working power supply	No need of external power supply
Medium density	>=0.5g/cm^3
Working pressure	PN2.5~ PN160(Special for PN320)
Working temperature	-40~80 ºC, -40~120 ºC, -40~150 ºC (others for customize )
Float diameter	Ф30~Ф120(depending on pressure and density)
Installation type	Flange: DN50~DN150 HG/T20592~2009
	1-1/2'', 2'' external thread (downward install type)
	1/2'' external thread (upward install type)
	3/8'' external thread (upward install type)
Installation angle	<=±25°
Electric interface	M20×1.5 female thread
IP grade	IP65\IP67
Explosion-proof grade	Exia II CT6Ga or Exd II CT6Gb

Wiring box of switch
                                                              

Float ball material	Float code	Di (mm)	Do (mm)	H (mm)	Max O.P Press (PN)	O.P.Temp (ºC)	Standard Density	Critical Density(g/cm^3)
1Cr18Ni9Ti 316L	V24	9	24	24	10-16	150	1.0	0.8
	V28	9	24	28	10-16	150	1.0	0.78
	V38	9	38	27	10-16	150	1.0	0.55
	V45	16	45	50	10-16	150	1.0	0.6
	V51	16	51	60	10-16	150	1.0	0.5
	V75	16	75	75	25	150	1.0	0.55
	V125	22	125	125	25	150	1.0	0.55
	V110	16	110	110-180	10-16	150	1.0	0.8
Titanium	T95	16-22	95	110-180	40-160	150	1.0	0.5
	T110	16-22	110	110-180	40-160	150	1.0	0.5
PTFE	F48	22	48	70-100	6-16	150	1.0	0.7
PP	P48	24.5	48	60-120	6-20	≤80	1.0	0.8
	P58	24.5	58	60-120	6-20	150	1.0	0.6
	P76	24.5	76	70-120	6-16	150	1.0	0.55

Note:

1. Float ball can be customized. Acceptable when density of medium is less than 0.5g/cm3.
2. Titanium,PTFE,and PP material should be column float, the other is column or ball float.
3. The form is for indication only. Manufacturer can change the size and structure of the float ball depending on operating differential pressure and density.