EBARA Press-o-Matic Manuel D'instructions page 23

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DESCRIPTION
Press•o•Matic is an electronic device, employing in verter-based technology, which controls motor pump
stopping and starting functions.
Thanks to the particular type of technology used, it can modulate the frequency (Hz) of the motor's input
current to alter the speed (rpm) according to the water delivery rate required from the system.
This way, the value of the pressure reaching the user appliances is maintained constant all the time and
the motor's absorption is al ways proportional to the actual system requirements, resulting in notable
energy savings o ver time. All other uses are strictly prohibited.
SPECIFICATIONS
Power mains supply:.......................... single-phase, 230Vac ±10% - 50/60Hz
Motor power supply: ........................... three-phase 220V~
Maximum po wer absorption:..................2200W – 3Hp
Maximum motor phase current:...............9.7Arms
Max. line absorption :............................16 A @ 230 V~
Max. al lowable pressure:.........................800 kPa (8 bar)
Max. liquid temperature :....................... 50°C
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Max. theoretical flow rate:.....................150 l/min – 9m /h – 9000 l/h
Set-point adjustment range:....................1.5÷7 bar
Start pressure adjustment range:...............1÷ 6.7 b ar
Hydraulic connection ...........................1"¼ male-male
Frequency modulation range:...................25÷50 Hz (30-60Hz optional)
Degree of protection :.............................IP 65
Weight.............................................1.6 kg
Dimensions........................................254x147x143 mm
Type of action.....................................1 (according to EN 60730-1)
FEATURES
√ Constant pressure due to motor pump speed regulation
√ Energy savings due to less pump absorption
√ Gradual pump start and stop reduces hammering
√ Protection against dry running in the event of water shortage during intake
√ Automat ic reset in the event of dry running, with autonomous error condition recovery
√ Efficient leakage monitoring to protect pump in the event of repeated restarts
√ Digital pressure display
√ Operation/error status signalling via LEDs and on-screen alerts
√ Auxiliary contact for remote control, pair connection or double set-point
√ Rotation direction in version via soft ware (does not require wiring alterations)
√ Extractable terminals to facili tate wiring
√ Possibility of interfacing two devices as p art of the pressurisation units
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