DIFFERENTIAL PRESSURE/ PULSE TIMER

ECO 12, planned for the management of medium systems of filtration, is able to drive up to a maximum of 12 remote modules with built-in differential pressure measuring device, to control the filter obstruction. The device will command only the outputs connected to a load and the sequence will be automatically regulated. The differential pressure measuring device gives the starting of the cycle- generator only when necessary. The pressure at the washing start and its end, post-cleaning pressure, alarm pressure and pause-times, operation time and post-cleaning time are adjustable through 3 keys and 3-digit display. Moreover other programmable functions are available. Technical Specifications Enclosure: Transparent polycarbonate Protection rating: IP 56 Power supply: 24 Vac +/- 10%, 45-60Hz or 115 Vac +/- 10%, 45-60Hz or 230 Vac +/- 10%, 45-60Hz 24 Vdc power supply available on request Absorbed power: 30VA Fuse: F1 e F2¹ = 2A 5×20 quick acting Operating temperature: -10/+50 °C Connection: Screw type terminal boards PAUSE time Duration: 1 – 999 sec Precision: 0,01 sec OPERATION time Duration: 0.03 – 9.99 sec Precision: 0,01 sec POST-CLEANING Time Duration: 0 – 999 sec Precision: 0,01 sec Outputs Triac with zero-crossing activation/deactivation 24, 115 or 230 Vac with max. current 2A. Transistor type for versions designed to control 24 Vdc solenoid valves (optional). Alarm relay outputs: 1A resistance load 115 Vac Hour counter range: 0 €“ 99999 hours Cycle counter range: 0 €“ 99999 cycles Nominal measurement range: From -99 to 999 mmH2O Accuracy: ± 1% F.S. , ± 1 digit Max applicable pressure: 0,5 bar

Key to Diagram

  1. F1 Main fuses F2 Load protection fuse
  2. Power supply terminal board
  3. Post-cleaning input from remote connector (on = post-cleaning; off = stop)
  4. Alarm output (relay changeover contact)
  5. Power On LED
  6. Pause LED
  7. Pilot connection terminal board
  8. Output active LED
  9. Decrease key ( †“ )
  10. 3-digit display
  11. Increase key ( †‘ )
  12. Enter Key ( E )
  13. Fixing bracket
  14. Pneumatic union
  15. 4-20mA output (optional)