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JFUK Series

Intelligent Liquid Level Controller (Float Control Switch)

Introduction


  JFUK series liquid level controller (also known as float control switch, cable float switch, or float water level controller) is a switch that can adjust the liquid level in the liquid containers (such as pools, barrels, tanks, tanks, reservoir, water tower etc.). JFUK series float controller is composed of the controller body and control signal cables. JFUK series has the advantages of easy installation, easy operation, automatic adjustment, safety and reliability, maintenance-free, non-toxic and environmental protection, and can resist the erosion of sewage. JFUK series is widely used in households, factories, mines, etc. According to the shell material of the controller body, JFUK series can be divided into plastic type float controller (JF-UK221) and 304 stainless steel type float controllers (JF-UK304). JF-UK221 can be used in oil, weak acid and weak base environments, but not in high temperature environments. JF-UK304 can be used in high temperature, strong acid, strong alkali environment.

Parameters


JF-UK221 (Plastic)

Operation Voltage: 220VAC, 380VAC/50HZ
Rated Current: 8A(220VAC); 4A(380VAC);COS=0.9
Operation Temperature: 0℃~80℃
Mechanical life: ≥5000 times
Liquid Level Control Range: ≥0.2 meter
Cable Length: 4 meters (the cable length can be customized according to specific requirement)

JFUK Series JF-UK221 (Plastic) image

JF-UK304 (Stainless Steel)

Operation Voltage: 220VAC, 380VAC/50HZ
Rated Current: 8A(220VAC); 4A(380VAC); COS=0.9
Operation Temperature: 0℃~120℃
Mechanical life: ≥5000 times
Liquid Level Control Range: ≥0.2 meter
Cable Length: 4 meters (the cable length can be customized according to specific requirement)

JFUK Series JF-UK304 (Stainless Steel) image

Dimensions & Wiring Diagram


JFT02 (DIN Rail Mount)

1. Water supply system
If JFUK series controller is used for water supply system, black and blue cables should be used. When the float is at the lower water level, it will be connected. When the float is at the upper water level, it will be disconnected.

2. Drainage system
If JFUK series controller is used for drainage system, black and brown cables should be used. When the float is at the lower water level, it will be disconnected. When the float is at the upper water level, it will be connected.

3. Use scenarios
Due to the diversity of the actual application, JFUK series controller has many wiring methods, which we cannot list them all here. Therefore, in the following we will show the main three wiring methods through three scenes.
Scene 1: In this scene, we use JFUK series controller to control a single-phase water pump for automatic water supply (as shown in Figure 1). If the water source is abnormal, in order to prevent damage to the pump equipment, please refer to the wiring method in Scene 3.
Scene 2: In this scene, we use JFUK series controller to control a single-phase water pump for automatic drainage (as shown in Figure 2).
Scene 3: In this scene, two sets of JFUK series controllers connected in series are used to control a three-phase water pump (as shown in Figure 3). In this way, it can not only ensure the automatic water supply to the water tower, but also prevent damage to water pump equipment due to insufficient water supply in the well.

*Note: The above wiring method is for reference only. The unused cables of JFUK series controller must be absolutely insulated!

JFUK series wiring diagram1 stage1-stage2

JFT02 dimensions and wiring diagram 1

JFUK series wiring diagram1 stage3

JFT02 dimensions and wiring diagram 2

Instructions For Use (How to set)


1 Pass the cable through the plastic plumb, and remove the plastic fixing ring from the top of the plumb.

2 Place the fixing ring to the needed position on the cable.

3 Push the plumb to the position of the fixed ring, and fix its bottom by the fixing ring.

4 Copper wire or other things can be used to fix the top of the plumb to firmly fix it on the cable or on the inner wall of the container to prevent the sliding of the plumb.

JFUK series instructions for use. How to use JFUK series liquid level controller

JFUK series instructions for use