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Capacitance Type Level Switch ALN/ST Series

The capacitance type level switch detects level of any kind of materials (powder, granule, lump, liquid, paste, bubble, etc.) More than 1,000 types of electrode shapes and special circuits are available to cover many different applications.

Features

Highly sensitive and stable
Excellent mechanical strength and durability
Stable detection even with contamination or deposits on electrode
Applicable to highly conductive materials
Easily detects highly corrosive materials

Operating Principles

It detects the variations of capacitance between main electrode and tank wall or grounding electrode. As the level in the tank rises, the capacitance value increases, which makes an output contact when it exceeds the preset value.

Specifications

Power Source	105 / 210VAC ±10% 50/60Hz
Power Consumption	4.5VA
Contact Capacity	250VAC 10A, 30VDC 10A
Allowable Temperature	-25℃～+60℃
Stable Detection Range	1：High Sensitivity　　　0.5～20pF 　　2：Standard Sensitivity　 2～50pF 　　3：Low Sensitivity　　　20～1000pF 　　4：Ultra Low Sensitivity　 5～35Ω
ON Delay	Max.10 seconds, variable
Color	Gold
Enclosure Rating	IP-67