Conductive Level Controller 61F-GPN-BT / -BC

• Outputs can be set to self-hold at ON or OFF using special circuits.

• Adjustable sensitivity, with an operating resistance range of 0 to 100 kΩ, allows use for a wide variety of liquids.

• Relay contact chattering conventionally caused by waves eliminated using open collector output, reducing contact wear.

• Meets CE marking and is a UL recognized component.


Rated voltage 24 VDC
Allowable voltage range 85% to 110% of the rated voltage
Interelectrode voltage 5 VAC max.
Operation resistance *1 Variable (0 to 100 kΩ)
Error For scale of 0: +10 kΩ; For scale of 100: ±10 kΩ
Release resistance 200% max. of the operation resistance
Switching between supply and
Terminals 7 and 8 open: Automatic drainage operation
Terminals 7 and 8 shorted: Automatic supply operation
Output specifications Open collector (NPN)
30 VDC, 100 mA max.
Leak current: 100 μ A max.
Relay output, SPST-NO
5 A, 240 VAC (Resistive load)
5 A, 30 VDC
Life expectancy Electrical: 100,000 operations min.
Mechanical: 20,000,000 operations min.
Accessories Hold-down clip PFC-N8
Wiring distance *2 100 m max.



*1. The 61F may not operate at resistance settings close to zero. Adjust the sensitivity to match actual usage conditions.
*2. The figure for wiring distance above is for when 600-V 3-core cabtire cable with a cross-sectional area of 0.75 mm2
is used.




Ambient operating temperature -10 to 55°C
Ambient operating humidity 25% to 85%
Insulation resistance 100 MΩ min. (at 500 VDC)
Dielectric strength * 2,000 VAC, 50/60 Hz for 1 minute
Power consumption 2 W max.
Response time Operating: 1.5 s max.
Releasing: 3.0 s max.
Approved standards UL61010-1, CAN/CSA C22.2
EN61010-1 EN61326-1 Industrial electromagnetic environment


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