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54
HD22.2
L
ABORATORY ELECTRODE HOLDER WITH IN
-
BUILT MAGNETIC STIRRER
HD22.3
L
ABORATORY ELECTRODE HOLDER
HD22.2
The HD22.2 is a laboratory electrode holder with an ultra slim magnetic stirrer. The height adjust-
able electrode holder supports two standard
∅
12 mm electrodes. The stirring is performed by a
small magnetic bar immersed in the liquid: The motion is generated by a rotary magnetic field
controlled by microprocessor. There are no mechanically moving parts, therefore no maintenance
is required.
The rotational speed can constantly be adjusted from 15 to 1500 rpm.
The HD22.2 has a modern and functional design. It is made of materials that resist to most chemi-
cal products.
Operation
Insert the magnetic bar in the liquid container to be stirred.
Power the stirrer by connecting the SWD10 power supply 12Vdc output (optional) or connect-
ing it to the instrument’s auxiliary supply output (series HD22xx.2) using the HD22.2.1 cable.
Turn the instrument on with the
key.
Set the rotational speed to the minimum by holding the
key, until the LED located between
the
and
keys stops blinking.
Now put the liquid container, at the center of the base.
Set the desired rotational speed by pressing the
and
keys; during adjustment the LED
located between the two keys is blinking.
The
key allows to invert the magnetic bar rotation. The lit LED between the
and
keys, indicates that the inversion function is on; the rotation direction is automatically inverted
every 30 seconds.
The set speed and rotation direction remain in the memory also when the instrument is off.
Upon power on, the rotation will progressively go back to the previously set speed.
Note: If a non circular rotational motion begins, due to irregularities in the bottom of the container
or the magnetic bar, use the
and
keys to restore a circular motion.
The electrode holder height can be adjusted. To set the desired height, press the button and slide
the electrode holder along the staff.
HD22.3
The HD22.3 is a laboratory staff and electrode holder. Its height and depth can be adjusted. It can
hold up to 5 standard
∅
12 mm electrodes. The solid, fire-coated metal base, ensures stability even
with 5 electrodes. The staff is fitted with hooks for cables and electrodes.
Summary of Contents for HD2205.2
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