Self floating ball liquid level controller

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ZW-UQK series Self floating ball liquid level controller Applicable to ships, for both control and a…

Productoverview:

ZW-UQK series Self floating ball liquid level controller Applicable to ships, for both control and alarm to the liquid level in the tank and other equipment in chemical industry. Self checking device is based on the UQK increase the self detection function, it can be in the running state of the equipment, moving the handle, to detect the controller and system, in order to ensure the safe operation of the system and controller.

Second, working principle:

ZW-UQK series of <strong> self floating ball liquid level controller</strong> is composed of a floating ball assembly and transformation of two parts. When the measured level changes, the floating ball will move up and down, to the end of the connecting rod magnet do the opposite direction. Reach level two control points, through the magnetic repulsion of the marine float level controller is the conversion mechanism of the magnetic steel quickly rejected to the other side, the micro switch is turned on or off, the switch signal output, to achieve the alarm or automatic control for marine float level controller.

Three, application:

ZW-UQK series <strong> self type float level controller</strong> is suitable for copper, aluminum, stainless steel and other materials that do not corrode the container control night. When the liquid level reaches high, lower limit position, the controller output electric shock switch signal, realize the liquid level alarm or pump power. It can be widely used in petroleum, chemical industry etc..

Four, main features:

1, advanced design and strict manufacturing process provides a reliable guarantee for product quality.

2, the shell is made of ABS, PP, PVC plastic, high strength, good corrosion resistance.

3, cable with special materials, oil resistant, acid, alkali, corrosion resistance is superior.

4, simple structure, reliable performance. Stable and reliable output on and off switch signal, no misoperation, high reliability.

5, simple installation, convenient debugging, on the mobile positioning block, can freely adjust the liquid level control range.

Five, technical parameters:

1, rated current: 16A-120VAC; 10A-300VAC; 0.6A-150VDC;

2, contact output: two independent SPDT contacts;

3, contact material: silver (Ag);

4, the body material: precision alumina ceramics;

5: die casting magnesium alloy shell, switch surface polishing of polyurethane coating;

6, rated temperature: Standard Type: -40~250 ~ C;

7, high temperature: less than or equal to 370 DEG C;

8, pressure rating: ANSI Class150 and 300, 600, 900LB, PN1.0;

9, process connection: flange connection, 80 DN50, 100 2'~4 ANSI; ";

10, medium density: 0.40g/cm3;

11, electrical interface: M20 * 1.5, 1/2'NPT female;

12, flameproof explosion-proof grade: Exd II BT4 II CT6 Exia intrinsically safe;

13, protection grade: IP65.

Six, installation instructions:

External installation:

1, the installation location should be away from the water inlet, otherwise the switch will malfunction caused by the fluctuation of water inlet.

2, if the float level switch device in the vessel wall, can be installed L type steel bracket.

3, if the switching device can be installed in the stirring area, wave tube or wave baffle.

4, the selection of pipe flange diameter greater than the diameter of the connecting pipe of the floating ball.

Recommend the use of multiple core cable wiring, 5.

6, control line load must match the float switch contact capacity.

7, the measured liquid proportion must be greater than the proportion of floating ball.

8, the floating ball movement has orders in the factory is adjusted according to the customer, please do not arbitrarily adjust the float position.

Internal wiring installation:

1, when the float switch used in motor, relay, solenoid coil circuit has an inductive load, in parallel across the load protection circuit such as: RC (buffer), rheostat, diode etc..

Note: please do not float switches are directly connected to the electromagnetic valve, motor or solenoid switch.

2, when the floating ball switch is used in capacitors, hot bulb, long cable and capacitive load, will produce a surge current in the switch contacts; in the float switch is connected in parallel with the protection circuit, such as current limiting resistors or surge absorber etc..

Seven, wiring and contact instructions:

1, open the box, the cable from the inlet through, and lock line inlet cable fixed head, according to the nameplate and wiring board terminal station logo on the terminal of the contact line on the corresponding access.

From the 2 wiring board, digital identification terminal table corresponding to a contact from top to bottom of the floating ball.

3, float ball joint is divided into three forms:

1A said: when the liquid level is higher than the floating ball contact A-C;

The 1B said: when the level is below the floating ball contact B-C;

The 1AB said: when the A-C level is below the floating ball contact open, B-C connected; the liquid level is higher than the floating ball when the A-C contact is connected, disconnect the B-C.

4, please tighten the lid after the completion of the wiring and wiring port is fixed, in order to ensure the waterproof junction box.

Eight, matters needing attention:

1, regular cleaning of debris and dirt rod and the floating ball (depending on the water quality and cycle);

2, regular inspection of all parts are firmly;

3, should consider the proportion of liquid, in order to ensure the smooth float to float;

4, the control circuit load does not overload use (less than the capacity of contact use);

5, electrical wiring box interface must be down;

Please choose anti-corrosion type 6, alkali liquid;

7, the floating ball and the connecting rod is connected with the container tube shall not touch the process.

Nine, common faults and exclusion:

1, failure analysis and troubleshooting of floating ball movement

The liquid proportion is less than the proportion of floating ball to re confirm the proportion of floating ball;

The floating ball, and the Water Leakage company to replace the floating ball;

The floating ball to remove foreign bodies stuck in foreign body.

2, the floating ball moves, but no signal output

The float position offset, adjust the float position;

The magnetic reed switch is damaged, replace the magnetic reed switch.

3, the output signal is not normal, to eliminate the magnetic field near the magnetic field interference;

4, maintain the signal, unable to recover, the floating ball can not return, a foreign body stuck to remove foreign bodies;

5, there will be a two signal output, ring position, adjusting ring buckle position.

Ten, specification data sheet: 

Eleven, the selection of encoding:

Note: Please specify the specific process of connection, the size and position of action point.

12, design selection and ordering information:

1, the liquid level switch device specifications;

2, measuring range;

3, working pressure and temperature;

4, material control device;

5, the special requirements of negotiation;

6, whether the liquid level device supporting the supply vessel flange, bolts, nuts, washers and valve sealing parts, so that the correct selection.

Customer service service commitment:

1, our level switch series products quality problems within twelve months, responsible for free maintenance.

2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.