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61F-GPN-BT / -BC

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.


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

* The dielectric strength is measured between power terminals and electrode terminals, power terminals and output
   terminals, and between electrode terminals and output terminals.