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Specifications
Magnetic flap and magnetic column type are available;Various mounting forms;
Wide applications.
UHZ-517 magnetic level gauge is a kind of float type metallic tube field indication level gauge. It is of good sealing, leakage proof and reliable measurement in high temperature, high pressure, high viscosity and strong corrosion applications. No blind area. Striking in display, clear in reading and wide in range; with alarm and control switch, the liquid level or interface can be controlled at upper or lower limit. LB transmitter converts the signal of liquid or interface level into 4~20mA DC standard signal, and achieves remote measurement, indication, record and control. The products are widely used in electric power, petroleum, chemical, metallurgy, environmental protection, marine ship, architecture and foodstuff industries.
Technique parameter
Measure range: 300~15000mm
Accuracy: ±10mm
Medium density: ≥350kg/m3
Density difference: ≥150kg/m3
Ambient vibration: ≤0.08m/s
Medium viscosity: ≤0.4PaS
For the high viscosity and easy –crystallization at low temperature, heating jacket level gauge can be used.
Material:
304, 316, 316L, 316Ti, 321, 1.4301, 1.4435,
1.4401, 1.4571, 1.4783, 0Cr18Ni9, 1Cr18Ni9Ti,
00Cr17Ni14Mo2, 0Cr17Ni12Mo2, 0Cr18Ni2Mo2Ti,
PP, PVC, PTFE, Ti, Zr, Ta, Hastelloy C-276, Monel
Process flange:
Factory standard: HG20592~20635-97 DN25 PN1.0~PN32
Or according to ANSI B16.5;1/2"~10" DN10-DN250 GB/T 9112-2000;
JB/T 79.1-94 SH3406-1996 DIN 2635;
DN10-DN250; DIN 2527; DN10-DN250
10A~250A JIS 20K FF RF; 1/2"~10" JPI
Pressure:
PN1.0,PN1.6,PN2.5,PN4.0,PN6.4,
PN11.0,PN16.0,PN25,PN32.0
Class 150LB,300LB,600LB,900LB,
1500LB,2500LB,ANSI
Working temperature: -196~520°C, 77.15~793.15K
Enclosure: IP66
Safety mark: ExiaIICT1-T6; ExdIIBT1-T6
Structure Principle
The magnetic liquid level gauge operates on principle of Buoyancy and Magnetic Coupling. As the liquid level rise or fall in the vessel, the float in chamber will rise or fall correspondingly (See fig.1). The permanent magnet in the float actuates the white and red rollers to reverse 180°due to magnetic coupling. As liquid level increases, rollers reverse from white to red; while liquid level decreases, rollers reverse from red to white. The red/white interface of indicator shows the actual level of medium in vessel. The rollers material of common level gauge for atmospheric temperature is plastic resin; and for high temperature applications(up to520°C), alumina ceramic rollers with permanent magnet steel armored should be used.
UHZ517T series magnetic level gauge are top mounted--the chamber is on the top of vessel and connected with float and connecting rod, the magnet field of permanent magnet make the level in vessel to the top chamber and conveys to level indicator, transmitter and switch due to magnetic coupling effect.
Options
LB transmitter imposes the level signals from magnetic system coupling on every dry reed of resistance chain in sensor. It will change output resistance continuously. The measure voltage will change accordingly proportional to the levels in vessel. With transmission transducer, output a two wire 4~20mA analog signal; HART communication protocol is optional.
Tri-magnet (Quadra-magnet) driven level switch
BK-1/EX Tri-Magnet Level Switch, as the most reliable and practical level switch in the world, has bistable memory function. Mounted on the indicator, in the same magnetic coupling system with level gauge, not contact with the process medium, this level switch is high-temperature resistant, explosion proof and shockproof. It utilizes three magnetic coupling burst switches. When the magnetic float (the first magnet steel) in the chamber close to the switch, the second magnetic component will rotate, meanwhile the third magnet steel in the switch will rotate reversely and the push bar will actuate the switch. BK-1H/Ex Quadra-magnet driven level switch is suitable for high temperature applications. The fourth magnetic coupling is used to keep the terminal box far from the high temperature heat source, and working temperature of BK-1H/Ex Quadra-magnet level switch can be up to 420°C.
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