Proper Use; Unpacking; Function Stirring - IKA RH basic 1 Betriebsanleitung

3478700_RHb1_012005:3478700_RHb1_012005 20.09.10 09:40 Seite 8

Proper use

The IKA RH basic 1 is a stirring instrument with heating func-
tion. It is used in e.g. laboratories of the chemical industry, in
schools as well as in pharmacies. The instrument is suitable for
tempering substaces which are placed on the heating plate in
vessels. By means of a built-in stirring drive and with the help
of a magnetic bar within the vessel, the substances can be stir-
red at the same time. The mixing intensity is dependent on the
motor speed and on the size of the magnetic bar.

Unpacking

Please unpack the equipment carefully and check for any
damages. It is important that any damages which may have arisen
during transport are ascertained when unpacking. If applicable a
fact report must be set immediately (post, rail or forwarder).
The delivery scope covers: an RH basic 1 and operating instruc-
tions.
Commissioning
Check whether the voltage specified on the type plate matches
the mains voltage available. The power socket used must be ear-
thed (protective earth conductor contact). Before tuning on the
machine, adjust the turn dial for controlling the spped so that it is
against the left stop. If these conditions are met, the device is
ready to operate after plugging in the mains plug. If these proce-
dures are not followed, safe operation cannot be guaranteed
and/or the equipment may be damaged.
Observe the ambient conditions (temperature, humidity, etc.)
listed under "Technical Data".
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Starting
The heating stirring features can be turned on and off by pressing
the unit switch A).
The ready for operation and turned on states of the device are
indicated by the green lamp in the unit switch lighting up.

Function Stirring

The stirring rod in the glass beaker with a maximum lenght of
50 mm is driven by a permanent magnet located directly under the
placing and heating surface. It allows magnetic field lines to pass
trough it. The permanent magnet is fastened directly onto the
drive shaft of the motor.
The actual speed depends on the load and voltage. Note that fluc-
tuations in the in the mains power voltage within the allowable
tolerance and changes in viscosity of the materials to be stirred
resulting from processes they undergo may also cause fluctuati-
ons in the speed.
The speed of the motor can be adjusted on the "Mot" dial (B) with
a scale from 0 to 6 (C). The scale values from 0 to 6 on this dial cor-
respond roughly to speeds ranging from 0 to 1500 rpms. The maxi-
mum speed is reached when the dial switch is turned all the way to
the right.
RHb1 012005