Boiler level control, CN4

• Function: controlling the water level of a boiler.
• Features:
  - Uses a 4 electrodes column.
  - Electrodes voltage: 17 Vac isolated.
  - Maximum control - electrodes distance: 50 m.
  - On/off command of the water pump contactor.
  - Supervision of water existence (enable/disable output)
• Input specifications:
  Power supply: 220 Vac - 50 Hz
  Terminals for 4 electrodes (3 level electrodes and 1 common)
  Exterior reset push button
  
• Output specifications:
  Pump - contactor command
  Output (S1, S2) - power supply for other controls
  Alarm (A1, A2) - exterior alarm power supply

Water level control in DIN rail enclosure, CN5R

• Function: activates/deactivates a relay depending on the level of the liquid.
• Features:
  - DIN rail format
  - Uses external sensors (3 electrodes or 2 float level switches)
  - Electrodes voltage: 17 Vac isolated
  - Maximum control - electrodes distance: 50 m
• Input specifications:
  Power supply: 220 Vac - 50/60 Hz
  Terminals for sensors
  
• Output specifications:
  Inverter relay, terminals: NO, C, NC
  Contacts rated: 5 A @ 220 Vac
• Applications:
  - Maintains a water tank full or empty
  - Low or high level alarm
  - Remote indication of minimum or maximum level

Water level control, CN5

• Function: activates/deactivates a relay depending on the liquid level.
• Features:
  - Uses external sensors (electrodes or floatlevel switches)
  - Electrodes voltage: 17 Vac isolated
  - Maximum control - electrodes distance: 50 m
• Input specifications:
  Power supply: 220 Vac - 50/60 Hz
  Terminals for sensors
  
• Output specifications:
  Inverter relay, terminals: NO, C, NC
  Contacts rated: 5 A @ 220 Vac
• Applications:
  - Maintains a water tank full or empty
  - Low or high level alarm
  - Remote indication of minimum or maximum level

Tanks pump control, CN6

• Function: controls the water pumping between two tanks.
• Features:
  - Actuates the relay if the high tank has no liquid and the low one has.
  - Uses external sensors (2 kits of 3 electrodes or 4 float level switches).
  - Electrodes voltage: 17 Vac isolated.
  - Maximum control - electrodes distance: 50 m
• Input specifications:
  Power supply: 220 Vac . 50/60 Hz
  Terminals for sensors
  
• Output specifications:
  Inverter relay, terminals: NO, C, NC
  Contacts rated: 5 A @ 220 Vac
• Applications:
  - Water pumping between low an high tank
  - Water pumping between low an high tank for distances greater than 100 m
  - Tank filling from a well.

Double level control (two CN5 in one box), CN7

• Description: two CN5 in a box. Reduces the costs in installations that require two operations at different levels.
• Features:
  - Uses external sensors (kit of 5 electrodes or 4 float level switches).
  - Electrodes voltages: 17 Vac isolated
  - Maximum control - electrodes distance: 50 m
  
• Input specifications:
  Power supply: 220 Vac - 50/60 Hz
  Terminals for sensors.
  
• Output specifications:
  Two inverter relays contacts: NO, C, NC
  Contacts rated: 5 A @ 220 Vac
• Applications:
  - Tank level control with a low or high level alarm.
  - Remote and discrete (lights) indication of a tank level.

Water level control DC powered, CN5CC

• Function: activates/deactivates a relay depending on the liquid level.
• Features:
  - DC current power supply (positive or negative: 12 or 24 Vdc).
  - Uses external sensors (kit of 3 electrodes or 2 float level switches).
  - Electrodes voltage: 17 Vac isolated.
  - Maximum control distance - electrodes: 50 m
• Input specifications:
  Power supply: 12 or 24 Vdc
  Terminals for sensors
  
• Output specifications:
  Inverter relay contacts: NO, C, NC
  Contacts rated: 5 A @ 220 Vac; 5 A @ 24 Vdc
• Applications:
  - Maintaining full or empty a water tank.
  - Low or high level alarm.
  - Pumps protection against lack of liquid.
  - Ships applications, auxiliary power units, etc.

Sensors for level controls

• Function: measures the liquid level for the level control series: CN5, CN6, CN7.
• Sensors for conductive liquids:
  Kit of 3 electrodes in bronze or stainless steel.
  Hanging electrodes with 5 m wire.
• Sensors for non conductive liquids:
  Kit of level switches with tank cover.
  Level switches in stainless steel.