Memmert PM 500 Self Drying Vacuumpump (Generation 2003) - Manual (Page 6)

and insert screws
ቪ with disk
springs ቫ, and tighten them until
the screw heads are just fully
seated (do not completely tighten
them!).
̈The concave side of the
first three disc springs must point
away from the screw head, the
next three towards it (see fig. 2,
detail X).
´ Gently tighten the screws ቦ,
evenly and diagonally.
² Turn the fan to check that the
pump rotates freely.
¶ Now tighten screws ቦ hand-tight.
º Tighten each of the screws ቪ a
half-turn more.
Repeat operations b), c), d), and e) for
the second pump head.
f) Final steps
³ Refit the the pneumatic head
connection:
Place tube onto the connecting
part of the angle fitting, turn angle
fitting to a straight position and
tighten the nut.
· Refit the fan cover.
» Reconnect the pump to the electri-
city supply.
Ī If you have any questions about
servicing call our technical adviser
(see last page for contact tele-
phone number).
6. Troubleshooting
̈ Sufficient vacuum is not reached
Possible reasons:
ᕡ Tube connections are not tight
ᕢ Condensate in the pump head
̈ Switch the drying system on
or reduce the interval bet-
ween pump head ventilation
operations.
ᕣ Diaphragms and/or valve plates/
sealings are worn out
̈ Changing diaphragms and
valve plates/sealings:
see section 5.
ᕤ If this problem occurs after chan-
ging of diaphragms and valve pla-
tes/ sealings:
̈ See information in section 5.
̈ Pump is switched on, but does not
run, the on/off-switch on the pump
is not lit
Possible reasons:
ᕡ Pump is not connected with the
power source.
ᕢ No voltage in the power source.
ᕣ Fuse in the pump is defective (only
authorized/qualified personnel
should investigate this problem):
̈ Disconnect the pump from
the power source by pulling
out plug.
Placement of fuse:
̈ Fuse accessible after opening
the connecting box of the
pump (see fig. 1 for the posi-
tion of the connecting box).
Dimension of the fuse:
see section 8.
̈ Pump is switched on, but does not
run, the on/off-switch on the pump
is lit
Possible reason:
ᕡ The thermal switch has opened
due to overheating
̈ Disconnect the pump from
the power source, let the
pump cool down, investigate
the reason for the overhea-
ting and irradicate it.
7. Ordering Information
Service Set
A Service Set contains all
replacement parts needed for one
complete service of the pump.
Service Set contains
2 diaphragms, 4 valve plates/sea-
lings
Order No.
047499
8. Specifications
Capacity: max. 60 l/min
Ultimate vacuum: 4 mbar abs.
Permissible operating pressure:
max. 1 barg
Permissible ambient
temperature: + 5... + 40 °C
Hose connection for tube ID 10 mm
Voltage pump: 230 V
Frequency: 50 Hz
Power consum-
ption pump: 220 W
Fuse pump
(2 x):
3.15 T [A]
IP 54
Voltage solenoid
valve 24 V DC
̈ CE - Safety Demands
½ The pumps correspond to the
safety regulations of the EU low
voltage directive 73/23 EWG and of
the EU directive concerning elec-
tromagnetical compatibility 89/336
EWG. The requirements of the fol-
lowing harmonised standards are
fulfilled:
EN 55014
EN 61000-6-1
EN 61000-6-3
EN 61000-3-2/3
EN 61010-1
½ The pumps correspond to IEC 664:
½ the overvoltage category II
½ the pollution degree 2.
PM 16527-860.3-2.00 e 11/05
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