LLF/D: Liquid Level Control Relay LLF LLD
• Conductive or Float
Switch Inputs
• Fill or Drain Operation
• 5K to 100KΩ Sensitivity,
Adjustable
• AC Probe Voltage
• 10 Amp Contacts
• Noise Filter
• Nusance Delay
• Input Status Indicators
Operation
Fill of Drain Operation (Fill:Pump Up - Drain:Pump Down)
The LLF/D accepts inputs that are either conductivity (resistance) and/or float switches. Internal logic circuitry controls the appropriate relay latching and unlatching for Fill or Drain operations. Three diagnostic LEDs indicate the status of the two inputs and output relay state. Probe sensitivity is adjustable to control effects of liquid wiskers from the level probes.
Specifications
Electrical
Input Supply Voltage: 12, 24. 120 or 240 VAC, 10%
Frequency: 50/60Hz
Power Consumption: 2VA
Sensitivity Range: 5K to 100KΩ
Pick-Up/Drop-Out Delay: .5 Sec. Fixed
Max. Probe Voltage: 16 Volts AC
Output Rating @ 25°C:
10 Amps @ 120VAC 5 Amps @ 250VAC, 30VDC
300W (D.C.), 1600VA (A.C.) Max. switching power (resistive)
100,000 Full Load Electrical Cycles
20,000,000 Mechanical Cycles
Indicators
2 Status LEDs: Inputs closed
1 Relay LED: Relay Energized
Physical
Mounting: Plug -In
Termination: 8 Pin Octal
Packaging: Dust Cover
Weight: 9 Oz.
Ambient Temperatures
Operating: 0°C to 40°C
Storage: -40°C to 85°C