Maintenance - Inova NH 20/40 Betriebsanleitung

English
point for setting the pump setpoint. This setting corresponds to
the similar delivery head for every switching stage on a Speck N
pump, with the same zero-delivery head, at a volume flow of
1 m³/h.
Setting the delivery head
When the knob is turned, the LED display changes to the set
pump setpoint. The "m" symbol lights up. If the knob is turned
from the middle position to the left or to the right, the set set-
point for the respective control mode is increased. If the knob is
turned back again to the middle position, the set setpoint is
reduced. The setting can be carried out in 0.1 m steps.
If the knob has not been turned for a duration of 2 seconds, the
display changes back to the current power consumption after
flashing five times. The "m" symbol no longer lights up.
Factory setting:
NOTE: All settings and displays are retained if the mains supply
is interrupted.

9 Maintenance

DANGER! Danger of death!
A fatal shock may occur when working on electrical equip-
ment.
• The pump should be electrically isolated and secured against
unauthorised switch-on during any maintenance or repair
work.
• Any damage to the connecting cable should always be recti-
fied by a qualified electrician only.
WARNING! Danger due to strong magnetic field!
Inside the machine there is always a strong magnetic field
that can cause injury and damage to property in the event of
incorrect dismantling.
30
Δp-v, ½Hmax
Speck 07/2012