Labfors 5 – Version for Microorganisms
Cleaning and Maintenance
Page
176
of
205
22 January 2019
ATTENTION
Inappropriate decalcifying of the equipment may lead to loss of
property.
Only decalcify the equipment
AFTER CONSULTATION
of the
manufacturer or licensed dealer!
INFORMATION
A turbid or milky coloured appearance of the glass of the vessel
jacket may be a sign of lime scale in the equipment with water
temperature control system. A first possibly already sufficient
procedure may be to decalcify the equipment via the vessel
jacket. Refer to chapter “Decalcifying the Equipment via Water
Jacket” for details in this case.
Use phosphoric or citric acid (max. 5 %) as decalcifying agent.
Be sure to respect the in chapter “Technical Data” specified
inlet pressure.
To warm up the decalcifier and pump it into the basic unit, use
a chiller or a water bath and an external pump.
During decalcification, the decalcifier flows in a circuit between
the basic unit and the chiller/water bath.
Proceed as follows:
Procedure
1.
If applicable, mount the exit gas cooler into the port of the ves-
sel top plate and connect to the basic unit.
2.
If applicable, mount the cold finger.
3.
Connect the culture vessel to the basic unit.
4.
Let the water drain off from the water outlet on the basic unit.
5.
Fill the chiller/water bath with decalcifier.
6.
Connect the chiller or water bath to the water inlet and outlet
on the basic unit.
7.
To open the corresponding valves in the basic unit, set the
temperature on the operating panel to 5 °C (cool).
8.
Set the chiller/water bath to 20 °C to 40 °C.
9.
Switch on the pump at the chiller/water bath.
10.
Let the decalcifier flow through the equipment for an hour.
11.
Connect the water inlet hose on the equipment to tap water.
12.
Hang the water outlet hose of the equipment at the spout.
13.
Rinse the equipment for an hour.
Summary of Contents for Labfors 5
Page 208: ......
