Cooling Tower Controller AS3050/1

Cooling Tower Controller – AS3050/1

• Menu driven programming utilising “two line” LCD-display
• Choice of languages (English, French, German or Dutch)
• Adaptable to user specific requirements by built-in programmable options
• Simple control utilising easy to follow symbols
• Universally applicable for various sizes of installation
• Programming a service telephone number possible
• Substantial status information employing INFO key:
• actual input and output conditions
• service telephone number
• software version
• programming situation of the annunciation and malfunction relays
• instrument probe cell constants
• Large green LCD-display showing water conductivity
• 7 Inputs : low level 1, tank full, tank empty, flush blocking 1, fluch blocking 2, low level 2, water meter
• 3 relay outputs (powered) : flush valve 1, flush valve 2, inlet valve
• 3 relay outputs (dry contact) : dosing output 1, dosing output 2, alarm

• Integrated conductivity meter with automatic range switching
• Conductivity range according to the instrument probe cell constants from 0,1 to 1 00 000 µS/cm
• The instrument probe cell constants programmable from 0,01 to 10,00 cm-1
• Manual or automatic temperature compensation
• Duplicate conductivity meter and temperature reading as an available option
• Second cooling tower plant possible when card with two conductivity meters is installed.
• Status of second cooling tower control only in LCD display (not with LEDs)
• Security of program information against supply failure, as all program information is stored without accu
• Large capacity microprocessor with “Watchdog”, illegal “Operation code” and frequency monitoring
• Manufactured in accordance with EMC codes of practice;
  • by means of galvanic isolation between the micro-processor and the in- and output circuits, plus extra built-in filter
• Available for wall mounting (AS3050) and panel-mounting (AS3051)
• Available (input /output) : 24/24V, 115/115V, 230/230V