Conductive Level Controller
61F-GPN-BT/-BC
E-15
Level
Controllers
Conductive Level Controller
61F-GPN-BT/-BC
Battery (24 VDC) allows use in locations
without AC power supply. AC sine-wave
voltage between electrodes enables stable
detection with no electric corrosion.
• Outputs can be set to self-hold at ON or OFF using special cir-
cuits.
• Adjustable sensitivity, with an operating resistance range of 0 to
100 k
Ω
, allows use for a wide variety of liquids.
• Relay contact chattering conventionally caused by waves elimi-
nated using open collector output, reducing contact wear.
• Bears CE marking and is a UL recognized component.
Features
The 61F can now run on DC power to allow energy savings, greater safety, and use in
emergency situations.
Ordering Information
Note:
A variety of Holders are available to suit different types of application. For details, refer to
61F Floatless Level Controller
(F030-E1-8)
.
Product name
Model number
Conductive Level Controller
61F-GPN-BT
61F-GPN-BC
Open collector (NPN)
Relay contact (SPST-NO)
Front Socket
PF113A-E
Electrode Holder
(See note.)
Upper limit
Mid-point
Lower limit
Valve
Short-circuit
Pump
Chattering
Load
Open Collector Output
Combines DC Power
Supply with AC Sensing
Method
AC sine-wave signals are
sent to electrodes using a
built-in DC-AC converter,
preventing electric
corrosion and ensuring
safety.
Oscillator
circuit
Detector
circuit
Supports Multi-channel
Sensing
Power supply circuits and
detection circuits are
isolated, allowing more
than one Controller to be
used in the same tank.
Control output
is possible for
upper limit,
mid-point, and
lower limit.
Signals can be used as
direct input for a PLC.
PNP output is also
possible using the
connection method.
Same Wiring for Supply
and Drainage
Supply control and
drainage control can be
performed with the same
wiring (short terminals 7
and 8 for supply control).
This makes it easy to
perform wiring and
confirm connection.
Drainage
control
Supply
control