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■ Reading Signals for the Liquid Level Only (No Control)
Only E1 and E3 are used. Output will turn ON when the liquid level reaches E1 if terminals 7 and 8 are open, and will turn OFF if terminals 7 and
8 are closed. Also, to take signals for liquid level at several points, use terminal 4 as a common for all of the Controllers and use terminal 5 of each
Controller as an electrode.
Note: If terminals 7 and 8 are shorted, operation of the 61F relay is "de-energizing" (i.e., energized normally and de-energized when liquid is
present across the electrodes). Therefore, if the power supply connected across terminals 3 and 9 is interrupted, the output from terminals
10 and 11 will turn OFF, enabling detection of power interruptions.
Dimensions
61 F -G P N -B T
49.4
Application Examples
Drainage control for semiconductor
wafer cleaning installations.
Applications
Liquid level control for solar
power generation systems.
38
Meet safety standards by
using DC power supply for
all devices in a panel.
Liquid level control for remote
regions without AC power supply.
Battery
Conductive Level Controller
70
84
Liquid level control for waste-heat
recovery boilers in co-generation
systems.
O N
O FF
Cut costs by using the 61F in situations
where ultrasonic/electrostatic capacity
level controllers were used because
only DC power supply was available.
61F-GPN-BT/-BC
61F-GPN-B_
101
PF113A-E
Number of
controllers
required:
2
1
E-17
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