What is a capacitive liquid level sensor?
The capacitive liquid level sensor is a liquid level sensor based on the principle of capacitive sensing.
When the height of the measuring electrode changes by the measured medium, it causes its capacitance to change.
The Capacitive liquid level sensor can convert the changes of various levels, liquid level, and medium height into standard current signals, which are remotely transmitted to the operation control room for secondary instruments or computer devices for centralized display, alarm, or automatic control.
Capacitive liquid level sensor with good structure and installation method can be applied to high temperature, high pressure, strong corrosion, easy to crystallize, anti-clogging, anti-freezing, and solid powder and granular materials.
How to connect the wires?
How to cut and re-assembly a capacitive liquid level sensor?
| a | mark the cutting point | |||||
| b | removal of bottom plug | |||||
| c | cutting to the reduced-length needed please note: tube should be protected by cushion to prevent from tube deformation | |||||
| d | to de-burr, and finishing on appearance | |||||
| e | re-assembly of bottom plug | |||||
How to calibrate a capacitive liquid level sensor after cutting length?
| a | Calibration for "EMPTY" | put sensor at open air (after cut) | ||||||
| b | power-on 24VDC | |||||||
| c | to short Yellow & Black for at least 5 sec. (all the above should be in air) | |||||||
| d | will see 0Vdc at output | |||||||
| e | Calibration for "FULL" | put the sensor into the agent please note: sensor should be dipped to the agent | ||||||
| f | to short Yellow & Red for at least 5 sec. | |||||||
| g | will see 5Vdc at output (Step 6 & 7 should be in liquid, same as agent in tank) | |||||||
