Barloworld Scientific stuart SB2 Instrucciones De Funcionamiento página 4

Safety Advice Before Use
❖ The unit should be carried using both hands
with fingers under each side frame.
❖ Do not stop rotation by hand.
❖ In the case of mains interruption, a fault or
mechanical failure, the unit will continue to
operate on removal of fault.
❖ Never move or carry the unit when in use or
connected to the mains electricity supply.
❖ Ensure that the rotator disc is evenly balanced
with tubes.
❖ Mechanical energy can lead to breakage of
glass vessels. Use with care.
❖ Ensure that there is sufficient free space
around the rotator so that it does not come
into contact with anything during use.
Operation
(see fig 1 & 2)
Unpack the rotator and the accessory tube
holder(s). Assemble the apparatus on a firm level
surface ensuring there is sufficient room for the
disc to rotate.
N.B. Keep these instructions in a safe place.
Figure 3
Using the angle adjust (SB2 &SB3)
Loosen the right hand side adjustment wheel by
turning it anticlockwise. Using the edge of the
main body of the rotator as a guide, position the
holder by lining up the desired angle marker
parallel to the edge (see fig 3). Tighten the
adjustment wheel clockwise to set the required
angle.
2
SB2 Fixed speed version
Load the tube holder ensuring it is evenly
balanced.
Switch the unit ON using the mains On/Off
switch (see fig 1). The unit will rotate at a fixed
speed of 20rpm. Once mixing is complete switch
the unit OFF using the same switch and unload
the tubes.
SB3 Variable speed version
Load the tube holder ensuring it is evenly
balanced.
Switch the unit ON by pressing the control knob
in (see fig 2). The red display will show present
set speed (red dot in the display shows RPM is
selected). This can be adjusted by turning the
control knob. Once the correct speed is displayed
press the start / stop button to begin rotating.
Rotation can be halted at any time by pressing
the start / stop button.
Using the timer (SB3 only)
In order to use the timer, halt rotation and press
the mode button. The red dot on the display
moves over to TIME. Select the desired count
down time using the control knob. When the
display shows the correct time in minutes, press
the start / stop button to begin rotation.
During operation, rotation can be paused at any
time by pressing the start / stop button. If this
button is pressed again, rotation will start again
and the timer will continue to count down.
When the timer reaches zero, rotation will be
automatically halted and an audible alert will
sound. The display settings will revert back to the
last values saved in the memory (see saving speed
/ time values section below).
To disable the timer and revert to continuous
rotation, select - - - in the display in timer
mode.
To switch the Rotator OFF completely, press the
control knob in.
Saving speed / time values
In order to save a commonly used speed / time
value, switch the unit ON by pressing the control
knob in (see fig 2) and select both a speed value
(2 to 40rpm) and a time value (either 1 to 999
minutes, 1 second to 90 minutes or 1 minute to