FAQ No. FAQ00761
Question
Is it possible to connect more than one
61F Floatless Level Controller to the same electrodes and share the
electrodes?
Answer
Electrodes cannot be shared. Do not connect more than one 61F to the same
electrode.
If the voltage phases of the electrode circuits' 8-VAC power supplies are
opposite, as shown in Figure 1, a closed loop circuit can pass through to
two internal circuits (in the direction of the arrows) and the 61F can
operate improperly when the power supply is turned ON, regardless of the
water level.
Figure 2 shows how the power supplies' phases can be synchronized to
prevent a loop circuit, but the 61F internal impedance will drop to
approximately 1⁄2 of the correct impedance from the standpoint of the
electrodes.
When using two or more 61F, separate the electrodes to prevent mutual
interference. Sharing of the common electrode is acceptable.
Figure 1: Example of a Loop Circuit
Figure 2: Synchronizing the Phases
Other Level Controller
FAQs
 When voltage is applied to the 61F Controller, it operates regardless of the actual liquid level. What is the cause of the problem and how can it be corrected?
Is it acceptable to wire the 61F Controller’s electrode cable and power cable in the same duct?
With a 61F-G1, the water level of a water supply is above the E2’ height, but the pump does not operate. What is the cause of the problem and how can it be corrected?
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