Conductive Level Controller
61F-GPN-BT/-BC
E-17
Level
Controllers
■
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
Application Examples
49.4
38
70
84
101
61F-GPN-BT
61F-GPN-B_
PF113A-E
ON
OFF
Battery
Applications
Liquid level control for solar
power generation systems.
Drainage control for semiconductor
wafer cleaning installations.
Liquid level control for remote
regions without AC power supply.
Meet safety standards by
using DC power supply for
all devices in a panel.
Liquid level control for waste-heat
recovery boilers in co-generation
systems.
Cut costs by using the 61F in situations
where ultrasonic/electrostatic capacity
level controllers were used because
only DC power supply was available.
1
2
Number of
controllers
required: