EBARA Ego Serie Manual De Instrucciones página 16

mode has been set) and the current speed curve set will be according to the
colour selected before long pressing the button. Shortly pressing the setting
button will set the pump back to "proportional differential pressure" mode.
In order to change the speed curve (in "fixed speed" operation) it is therefore
necessary to select the requested curve while in "regulated mode" and after
that to switch to the "fixed speed mode" by long pressing the setting button.
NOTE: the hydraulic response in the regulated mode is proportionate to the
flow. The set head for single chosen level has an inclination angle of 50% (see
table below).
GB 10.2 PUMPS Ego ER-/40, 60, 80 – CONTROL BY ANALOG SIGNAL
The Ego ER -/40, 60, 80 are equipped with an additional module that allows
controlling the pump with an analogue signal 0 -10 V.
"Unregulated mode" (fixed speed)
• The curve is determined by the value of the controlling signal. This mode is
set by pressing and holding the button on the primary circuit for 5 seconds
(the light is on). If the value of the controlling signal is lower than 1 V, the pump
enters in a stand-by mode. See diagram at the end of this manual.
"Regolated mode" (proportional differential pressure)
• The pressure curve of the pump is determined by the value of the controlling
signal. If the value of the controlling signal is lower than 1 V, the pump enters
in a stand-by mode. See diagram at the end of this manual.
External control works only if the input resistance is < 10kΩ. In this case, the
input voltage must be considered. If the input resistance is > 50 kΩ, the pump
will operate as a standard version without external control.
11. MAINTENANCE AND REPAIR
Often control the plant trying to eliminate the disturbing causes such as sand,
lime, etc. Keep efficient the parts exposed to damages (valves, filters, detectors
and protections). For interventions always call qualified technicians.
In case of long rests provide to often start the electropump. Any replacement of
the feeding cable as well as all other maintenance operations must be performed
only by the assistance centre.
12. DEMOLITION
When demolishing the electropumps, follow strictly the regulations in force in
your country.
The user is responsible for disposing the equipment by delivering it to a collecting
point for recycling and disposal of electrical equipment.
For further information about the collecting points of equipment, contact your
local authority for waste disposal, or the shop where you purchased your product.
16