2/3
B 51
GB 03063 - Edition 04 - Oct 13
Checking the direction of rotation at initial
pump start-up (for A603P pump only)
Check the direction
of rotation at initial
pump start-up
Remove the blank-off flange on the inlet and exhaust port.
Fit a pressure gauge at the pump inlet.
Set the main switch to position «
1
».
Press on the
ROOTS
key until the word
ROOTS
disappears from the
display.
Start-up the pump by pressing «
START
» and stop it after few seconds:
if the pressure indicated is less than 5.10
-1
hPa, the direction of
rotation is correct.
if the pressure increases,
invert two phases at the power supply plug,
or from main switch terminal
(for electrical hard wire connection)
B 50
.
When the main switch is set to «0», the part supply between the power and
the main electrical switch, is energized.
Risk of electrical shock in case of contact.
Disconnect main electrical cable before any intervention.
Hazardous voltage enclosed.
Voltage or current hazard sufficient to cause shock.
Disconnect and lockout power before servicing.
Any intervention must be done by trained personnel only.
When the pump is switched off, internal parts (monitoring, frequency
converter) contain capacitors charged with over 60 VDC and remain
energized.
Electrical shock may result in severe injury.
Wait 1 minute after switching off before opening the pump.
When inspecting the direction of rotation of the Roots at the initial start-up,
provide protection against the risk of compression related to the rotating
parts in the inlet.
Caution ! A non-powered Roots can be driven by another pump in rotation
(risk of compression).
In order to prevent foreign bodies from entering the pump, while waiting to
be installed, replace blank-off flanges on inlet and exhaust ports again.
adixen Vacuum Products - Operating instructions - A3P Series
