Electrostatic capacitance level switch

1、 How it works

The electrostatic capacitance level switch uses the probe (inductive electrode) and the barrel wall (grounding electrode) of the level switch as the two plates of the capacitor. When the medium between the two plates of the capacitor changes, the capacitance value will also change. The level switch analysis and processing unit detects the change. When the change value reaches the set value of the switch, the capacitance value will change, It is converted into switch signal output for control, so as to reflect the height of the measured medium or liquid interface.

2、 Product features:

1. The action is stable when the adhesive medium is measured

2. Both conductive and non-conductive media can be used

3. It is convenient to detect strong corrosive liquid

4. No moving parts, good mechanical strength

5. It is easy to install and debug

3、 Technical parameters

1. Power supply voltage: 220 VAC / 105 VAC, 24 VAC / 24 VDC

2. Contact capacity: 250VAC / 10A, dc30v / 10A, SPDT

3. Power: 4.5va

4. Time delay: 0-10s adjustable

5. Ambient temperature: - 25 ℃ - 70 ℃

6. Protection grade: IP65

7. Medium temperature: standard type - 25 ℃ - 80 ℃, high temperature type up to 200 ℃ (ultra high temperature up to 500 ℃)

4、 Structure diagram:

(1) Inductor: SUS304 or SUS316L

(2) Insulator: material UPE or PTFE

(3) Grounding electrode: SUS304 or SUS316L (standard 1 ′ PT)

(4) Connecting thread: SUS304 or SUS316L (standard: 1 ′ PT)

aluminium

(6) Outlet port: G 3 / 4 ′

(7) Circuit board

(8) Terminal box cover: aluminum alloy baking paint

5、 Application:

Liquid: various solvents, fuels, water, pure water, etc

Mixed liquid: factory wastewater, waste liquid, domestic sewage, rainwater, etc

Interface: oil-water interface, water and sediment in water, bubble and laundry water, etc

Powder: dust, sand, flour, sugar, lime powder, cement, etc

Granular: feed, medicine, plastic particles, etc

Massive: coal, stone, ore, etc