4 Commissioning
20
Checking the metering accuracy
Ascertaining the density of the process agents
The density and filling level with the associated weight is directly indicated on the label of the MEtherm process agents.
As an alternative the density of the cleaning agent, neutraliser and rinse aid (not for ophthalmology) can be ascertained.
The following scheme shows the ascertainment of the density of the cleaning agent. The ascertainment of the density of
the other process agents is done the same fashion.
Filling quantity / weight
indicated on the label
Place an empty measuring
cylinder on the scales and set
the scales to zero.
1.
Fill the measuring cylinder with
min. 200 ml cleaning agent and
read off the actual quantity.
2.
Read off the weight from the
scales.
3.
Calculate the density:
Density (p) =
m
V
p =
5500 g
5000 ml
p = 1.10 g/ml
1.
no
yes
Calculate the density:
Density (p) =
m
V
p =
220 g
200 ml
p = 1.10 g/ml
4.
Example: V = 200 ml 220 g
≙
Ascertaining the metering quantities of the process agents
After ascertaining the density, ascertain the metering quantity in gramme. Ascertain the metering quantity for the
cleaning agent, neutraliser and rinse aid during a running program.
PLEASE NOTE
In order to reduce the program run time, the program can be aborted as soon as the drying
temperature has been reached.
1. Either place the cleaning agent container on the scales and read off the total weight or reset the scales to zero by
pressing the tare key if possible.
2. Start the device with basis basket in the program preferred by the practice (PLEASE NOTE: In the ophthalmology
the Ophthalmo-Program).
3. Check all connections, chamber conduits for leaks during the program run.
Ê As soon as the display shows “Cleaning” and the metering temperature has been reached, the cleaning agent
metering pump will start metering the cleaning agent audibly. The metering has stopped once the pump sound
has stopped.
4. Note the weight change in grammes after metering the cleaning agent.
5. Remove the cleaning agent container from the scales.
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