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EN
Error Cause Solution
Inlet water pressure too low. The diameter of the inlet pipe is too small risp. too
many users are connected to a small pipe >>> Check
if water pressure is at least 1 bar (ask your plumber).
-
creased by a domestic water work (electric pump and
pressure tank).
Water sprays out of the
grinding opening.
Too much water. Reduce the water volume at the
trimmer (chap. 3.2).
Water drainage impeded. Check/properly lay out drain tube
>>> downward slope (chap. 2.2.2).
No rinse water. Water connection not properly
established.
Check the water connection (chap. 2.2.1).
Spray tube clogged up / blocked by
limescale.
Clean / descale spray tube (section hose clamp 4.3).
Water is dripping out
between the front door
and the housing.
Gipsum powder order plaster grains
on the sealing surface.
Clean the sealing surface and the sealing ring.
Red LED is on. Appliance is working in its limit
range
Reduce load as soon as possible.
Replace trimmer disc.
Appliance turns off an
&'*$
1 Hz.
The electronical temperature control
has been activate.
Wait until the appliance can be turned on again (about
10 min.)
+&'*$;
Hz (1x per sec.).
The electronic temperature monitor
has been activated.
Leave appliance switched on and wait until red LED
goes out (approx. 10 minutes).
+&'*$<
Hz (4x per sec.).
The thermal protection of the motor
has been activated.
Switch trimmer off and allow to cool for approx.
60 min.
Checks may be made in the meantime to see whether
the thermal protector has cooled down again.
+&'*$
Hz (2x per sec.).
Motor has been immobilised and
switched off.
Switch appliance off.
It can then be switched back on and work can be
resumed.
%
red LED not described
here.
Applinace or parts are defective Send appliance in for repair.
Information for the purchaser
The following information is intended to help purchasers ensure safe operation of this appliance in their laboratory.
Instruct operators on the application, possible hazards during use and operation of this appliance based on
the user information.
Ensure that this user information is available to operators.
A. Application
A.1 Correct use of the unit
This plaster trimmer MT3 / MT3 pro is designed solely for wet grinding plaster models.
A.2 Unapproved use
Using the appliance for dry grinding is not allowed.
This appliance may not be used for gringing investment material. Cancer causing dusts are released.
No accessories may be used on this appliance other than those supplied by Renfert. The use of other components is
not approved and carries the risk of serious injury.
EN
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