8 Startup/shutdown of a mzr-pump
Operating manual mzr-7240
Last update: March 2019
Technical data subject to change without prior notice!
51
Liquids
So
lu
bil
it
y in
w
at
er
Com
pa
ti
bi
lit
y
w
it
h
the
d
el
iver
ed
li
q
ui
d
D
u
ra
ti
o
n o
f
sto
ra
g
e
B
reakaw
ay
tor
que
Tox
ic
ol
ogy
V
isc
o
si
ty
D
es
cr
ipt
ion
isopropanol
+
+
o
o
o
+
solvent for organic compounds, cosmetics, essential oils
waxes, and esters, antifreezers, antiseptic agents
acetone
+
+
o
o
o
+
solvent for a number of organic compounds, unlimited
solubility in water, dissolves natural and synthetic resins, fats,
oils and commonly used plastifiers
ethanol
+
+
o
o
o
+
solvent for organic compounds, fats, oils and resins
DI-water
+
+
-
-
+
+
solvent for many organic and mineral liquids
fine mechanics
oil
-
-
+
+
+
+
cleansing and protective action (dissolves fats, tar, rubber or
adhesive substances, protects against corrosion).
hydraulic oil
-
-
+
+
+
-
lubricating and preserving properties (
Warning
: may resinate
or deteriorate with time)
nitrogen
-
+
+
+
o
+
is not a solvent, may leave deposits after drying out
air /
compressed air
+
+
+
+
+
is not a solvent, may leave deposits after drying out
Legend: + ... good/suitable o ... satisfactory; - ... bad/inadequate
table 30
Selection of the conservation agent
In order to prevent dust particles and foreign bodies from penetrating into the
pump or the conservation agent from leaking out, please secure the liquid
input and output openings with the delivered protective plugs or screws.
Warning
Water or DI-water should not be used as conservative liquids. They germinate
already after a few days and build a biofilm which can later block the pump.
8.5.1
Dismantling of the system
−
Put the drive out of operation by turning down speed to 0 rpm and by
switching off the voltage supply. Make sure that the procedure described in
the chapter 8.3 has been completed.
−
Now that the pump has been stopped you may remove it from the system.
−
Protect the inlet and outlet openings of the pump with adapted protective
plugs or screws.
8.6
Trouble shooting
If the pump stops operating abruptly or has difficulties with starting operation,
please undertake the following steps:
Try to liberate the micro annular gear pump:
−
by turning the potentiometer knob back and forth or by connecting an
analog voltage
−
via the control software
−
by pressing with a syringe a suitable flushing liquid (see table 28 and
table 29) through the micro annular gear pump