Conventional type connecting rod ball float liquid level switch

• 
• 
• 

Ordinary connecting rod ball float liquid level switch is for the automatic alarm and control of all…

Products overview:

ZW - UQK seriesConventional type connecting rod ball float liquid level switchIn airtight metal, dry reed pipe set one or more points, and then through one or more of the hollow pipe and internal floating ball with ring magnet, using fixed ring will float fixed within the scope of the associated with the magnetic reed switch, when floating ball movement, its internal magnets attract magnetic reed switch contact action, as a liquid level control or instructions.The product by the isolation of a floating ball and micro switch group 2.

Second, the working principle:

ZW - UQK series type connecting rod ball float liquid level switch is based on the working principle of buoyancy, the liquid level down float float inside the magnet, float along with the change of liquid level fluctuation, through magnetic shaft drive, drive the micro switch contact action, realize the liquid level alarm or control.Reed switch with each intended to measure or alarm level is fixed, guide bar and float guiding role, move up and down float with the guide bar, reed switch is in a magnetic field on, in the outside magnetic field when a disconnected state.Detection of the dry reed pipe in the pipe under the influence of magnetic field and divide or close.Drive micro switch element action accordingly.

Three, the application occasion.

ZW - UQK series type connecting rod ball float liquid level switch is for the automatic alarm and control of all kinds of container level.It is widely used in petroleum, chemical, electric power, metallurgy, food, pharmaceutical, paper making industries.With self-monitoring ball float liquid level switch can be easily at any time to switch and the system self test, to ensure that the switch and the safe operation of the system.

Four, the main features:

1, advanced design and strict manufacturing technology to provide a reliable guarantee of product quality.

Case 2, ABS, PP, PVC plastic, high strength, good corrosion resistance.

3, cable with special materials, they can withstand oil, acid, alkali, corrosion resistance is superior.

4, simple structure, reliable in performance.Output is stable and reliable "tong" and "off" switch signal, without any wrong operation, high reliability.

5, easy installation, convenient debugging, move up and down positioning block, can adjust at liquid level control.

Five, the technical parameters:

1, the working temperature: standard: - 40 ~ 150 ℃;

Medium temperature type: - 40 ~ 250 ℃;

High temperature type: - 40 ~ 350 ℃;

2, environmental temperature: - 40 ~ 70 ℃;

3, working pressure: 0.1 ~ 6.3 MPa.

4, medium density: acuity 0.45 g/cm3.

5, the output signal: SPDT relay (single pole double throw);

6, contact capacity: 250 vac 7 a.

7, switch life: 5 x l04 times;

8, electrical interface: M20 thread in x 1.5;

9, explosion-proof grade: flameproof Exd Ⅱ BT4;

The Ann model Exia Ⅱ CT1 ~ T6.

10, protection level: IP65;

11, process connection: HG20592 ~ 20635-97 (above, other flange standards when ordering user, please indicate;

12, liquid material: stainless steel;

13, junction box material: aluminum alloy.

Six, installation instructions:

1, the installation position should be far away from the water inlet, otherwise will switch the misoperation caused by fluctuations in water inlet.

2, if the switch device in the vessel wall, L type Angle bracket can be mounted to the system.

3, if the switchgear in mixing zone, can be installed or wave wave tube platens.

4, choose pipe diameter greater than the float of the diameter of the flange connecting pipe.

More than 5, wiring advice use core cable.

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

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

8, the action point floating ball is already in the factory according to customer orders to adjust, please don't adjust floating ball position.

Seven, contact protection circuit:

1, when the float switch used in motor, relay, solenoid coil of inductive load circuit, such as advice on both ends of the load in parallel circuit protection such as RC (buffer), resistor, diode, etc.

Note: do not use the float switch connected directly to the electromagnetic valve, the motor or electromagnetic switch

2, when the float switch used in capacitor, incandescent light bulbs, there is a long cable capacitive load, such as between switch contact will produce a surge current;Advice on both ends of float switch protection circuit in parallel, such as a current limiting resistor or surge absorber, etc.

Eight, wiring and contact details:

1, open the box, the cable from the line wear into the mouth, and lock into the line cable fixed head, according to the nameplate and patch panel terminals on the logo will be on contact wire connected to the corresponding terminal.

2, patch panel terminal stage identification Numbers from small to large from top to bottom corresponds to the floating ball contact.

3, the floating ball contacts are divided into three types:

1 1 A: said level higher than the float A - C contact through

(2) 1 B: it means the level below the float B - C contact through

(3) 1 ab: it means the level below the float A - C contact disconnect, B - C connected;Liquid level is higher than the float is A - C contact through, B - C disconnect

4, after the completion of the connection will be lifted the lid, please tighten and wiring fixed, in order to ensure waterproof connector.

Nine, common faults and eliminate:

1, the failure phenomenon, cause analysis and elimination method

Floating ball is not action

(1) the proportion of liquid is less than the proportion of floating ball - that the proportion of floating ball

(2) the floating ball is leaking and contact with the company change the floating ball

(3) foreign body removal stuck float -

2, floating ball movement, but no signal output

Floating ball position offset to adjust the floating ball position.

Ten, selection of code:

Note: please specify your connection mode, the process of the size and action point location.

Eleven, design selection and ordering information:

1, liquid level control device specifications;

2, measurement range;

3, working pressure, and temperature;

4, control device for material;

5, special requirements;

6, whether level device matching supply vessel flange, bolts, nuts, valves and fittings such as sealing washer, so that the correct selection.

After-sales service commitment:

Liquid level switch 1, I companies sell products within twelve months appear quality problem, is responsible for free maintenance.

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

3, the warranty period, such as user improper use, damaged products, my company is responsible for the maintenance, charge damage parts cost.

4, after the warranty period appear quality problem, my company is responsible for the maintenance, charge damage parts cost.

5, such as user need to my company site services, to users in the province I company service personnel to reach the site within 12 hours, fujian association of foreign languages and user reach the site within 48 hours.