Detailed product view
Part number: 880446

CUBE 444 DES for the conductivity-controlled blowdown

Field of application:
Conductivity-controlled blowdown in cooling towers and air washers
Equipment configuration:
Electrical connection: 220-240VAC, 50-60 Hz Own electrical power consumption: < 15 VA (with external sensors) Power switch: 2-pole Protection class: IP 65 Ambient temperature: 0-40 °C Dimensions W x H x D: approx. 199 x 179 x 106 mm Weight: approx. 1 kg Storage temperature: -10-50 °C Rel. humidity: 15 80%, non-condensing Main output: non isolated change-over contact, max.: 4A (switches the supply voltage) Universal outputs: potential free change-over contact; AC: max. 250 V/4A, DC: max. 40 V/1A Switching/digital inputs: for external potential free contacts; at least. Maximum stress 25 V/15 mA Pulse inputs: for external potential free contacts and open collector outputs; Minimum permissible load: 25 V/15 mA Analogue input: 0/4 20 mA, internal burden approx. 270 Ω (optionally 0-10 V), adjusted to measuring range of the conductivity probe Analogue output: 0/4 20 mA, max. burden 500 Ω; adjusted to measuring range of the conductivity probe. Conductivity probes: LMK-03-1.0 (LMZ 03-1.0), LMZ 03-0.1; other types upon request Measuring range conductivity: final value selectable within the range of 0-5000 µS/cm and/or 0-300 mS/cm Temperature measurement: 0-50 °C with semiconductor sensor KTY81 Temperature compensation: automatically or fixed reference temperature 25 °C Calibration during operation and dry at 25 °C

Product description (CUBE 444 DES for the conductivity-controlled blowdown):

CUBE 444 DES microcontrolled device for the conductivity-controlled blowdown in cooling towers and air washers

CUBE 444 universal controller with software for reverse osmosis plants, blowdown or dosing

  • Unified hardware
  • Compact design and simple operation
  • Visualization and simulation PC software
  • Equipment parameterization via software
  • Software for reverse osmosis plants, blowdown or dosing

CUBE 444 DES

Microcontrolled device for the conductivity-controlled blowdown in cooling towers and air washers

Performance profile:

  • Conductivity control for controlled thickening in cooling circuits/air washers
  • Blowdown valve opens, when conductivity exceeds the limit value
  • Blowdown valve closes when the lower limit value is not achieved.
  •  Blowdown locking during and after biocide dosing
  • PC software for parameter setup and visualization

Technical specification:

Conductivity measurement: 0-500 µS/cm (measuring cells c=0,1) 0-5000 µS/cm (measuring cells c=1,0)

Temperature compensation: automatical, reference temperature 25 °C

Calibration during operation and dry at 25 °C

Connections:

  • Switching input: locking
  • Output for blowdown valve: changeover contact, 250 V, max. 4 A total
  • 3 relay outputs: valve status, lock status, alarm
  • Analogue output: 0/4… 20 mA, adjusted to the measuring range of the conductivity probe
  • 2 analogue inputs: conductivity probe and temperature sensor KTY81 (optional PT100)
  • Optional: inductive conductivity measurement

Technical specification

Electrical connection: 220-240VAC, 50-60 Hz

Power consumption: max. 15 VA (with external sensors)

Dimensions W x H x D: approx. 199 x 179 x 106 mm

Weight: approx. 1 kg



 
 
 
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