Start-Up And Operation; Switching-On The Certomat ® S-Ii And Adjusting The Setpoints; Selecting The Shaking Operation Mode And Setting The Shaking Frequency - Sartorius Stedim Biotech CERTOMAT S-II Mode D'emploi

3.3

Start-up and Operation

3.3.1 Switching-on the CERTOMAT ® S-II and Adjusting
the Setpoints
After transport of the CERTOMAT ® S-II or moving to
1.
another working place, wait until the device has room
temperature, before starting operation. Otherwise
humidity of the ambient air may condensate and cause
malfunctioning of the device.
Connect the CERTOMAT ® S-II to an appropriate mains
2.
supply.
3. Switching-on the mains switch (1) supplies the line
voltage to the electronics. The unit starts in the mode
selected at the time it has been switched-off, i.e.
"timer"- or "shaking frequency" mode. You can swich-
over to the other mode with any of the cursor keys,
[ ] or [ ].
1
Fig. 2: Front panel with key pad
1. mains switch
2. alphanumeric display
3. numerical keypad
4. keys for mode selection
5. START / STOP - key
6. key for confirmation of inputs
(modified setpoints)
7. deletion key
8
2 3
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3.3.2 Selecting the Shaking Operation Mode and Setting
the Shaking Frequency
1. If the shaker is in the "Timer" mode, switch-over to
"frequency" mode with key [
shaking frequency via the numerical keys. The setpoint
range is 40 ... 400 rpm.
•
Select a shaking frequency which allows to avoid
vibrations almost completely for the load applied.
However this is not possible for all combinations of
frequency and load.
For the CERTOMAT ® S-II/50 a maximum shaking
frequency of 250 rpm should be applied. For using a
tray type E/EU-2 the shaking frequency should be max.
200 rpm (at a load of max. 10 kg).
•
The shaking frequency cannot be limitted in the factory
since the full shaking frequency range should be
available for all configurations, i.e. after rebuilding to the
4
alternate amplitude.
2. Confirm inputs with the [ENTER] - key. Wrong inputs
can be easily corrected. Press deletion key [ C ] to change
the actual entry. The cursor starts with the last (right
hand) digit of the display, ready for a new entry. New
entries must be confirmed with the [ENTER] - key.
The CERTOMAT ® S-II will start operation when the
3.
[START] - key is pressed. For changing an active shaking
6 5
frequency, press the [STOP] - key, then enter the new
setpoint, confirm with the [ENTER] - key and press the
[START] - key again to restart the unit.
After (re)starting the CERTOMAT ® S-II you should wait
4.
until the set shaking frequency is achieved. Monitor the
action of the shaker, it should run evenly and noiseless.
Stop the shaker, if vibrations are transmitted to the
working place and disturb other units around and /or if
vibrations force the shaker to move over the working
place.
In case of inadmissible vibrations you can reduce the
shaking frequency. If vibrations cannot be compensated,
the shaker should only be run under visual control.
] or [ ]. Enter the