FAQ No. FAQ00701
Question
Which Controller model is best for simple
liquid-level detection without pump control?
Answer
61F-GP-N Floatless Level Controller is suitable.
Prepare the same number of 61F-GP-N Controllers as the number of
liquid-level detection points.
Note: The common electrode (longest
electrode), terminal 4, can be shared by matching the power supply phases
(between terminals 3 and 9).
Principles of Operation:
If the water level reaches E3, the
lower-limit 61F-GP-N Controller’s LED indicator goes ON, terminals 6 and 7
close, and terminals 10 and 11 close.
If the water level reaches E2, the midpoint
61F-GP-N Controller’s LED indicator goes ON, terminals 6 and 7 close, and
terminals 10 and 11 close.
If the water level reaches E1, the
upper-limit 61F-GP-N Controller’s LED indicator goes ON, terminals 6 and 7
close, and terminals 10 and 11 close.
Other Level Controller
FAQs
 It seems that the 61F’s electrodes are dirty and sensitivity has dropped. How can I clean them?
Can the K7L be used as a substitute for the 61F-GPN-V50 Water Leak Detector?
What is the two-wire operating principle of the 61F-[]R Controllers?
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