Error Messages; Maintenace And Cleaning - IKA HBR 4 digital Betriebsanleitung

Error messages

The following error messages can be displayed (fig. 17) and have the fol-
lowing causes described:
No. Error
Er 3 Internal device temperature above 76°C Allow the device to cool down.
Er 4 Motor speed deviates ±300 rpm
from the speed. Set speed greater Mains switch OFF/ON
than 350 rpm
Er 4 Stirring function turned on
Actual speed = 0 rpm
Indication after approx 30 sec
Er 20 Safety relay does not close
Er 21 Safety relay does not open
Er 22 Disturbance before the last time the RESET button
device was switched OFF or safety
temperature is lower then the tem-
perature of the medium
Er 23 Adjustable safety circuit faulty
Er 24 Safety temperature set exceeded
Er 26 System dry, no medium in the
bath container
Er 27 Calibration error
Er 28 Sensor rupture
Er 29 Short circuit in the safety sensor or
controller and safety sensor mixed up
Er 30 Short circuit in the controller sensor
Maitenance and cleaning
Remedy
The safety circuit must be checked over at least once a year by the user.
Mains switch OFF/ON
To do this, fill the temperature contol bath with 1l of water and in opera-
Reduce load.
ting mode „A" set the safety temperature to 100°C. Then set the target
temperature to 80°C and start the heating function by pressing the Temp
ON/OFF key. After the target temperature has been reached, switch the
Mains switch OFF/ON moderating bath off and back on again with the power switch and set the
Increase the speed or turn the
safety temperature to 70°C. The temperature of the medium will then be
stirring function 10°C above the safety temperature, and the safety circuit will be activa-
ted. Error message Er 22 or Er 24 must be displayed.
Safety circuit is set too low,
check mains voltage (mains
The aparate is maintenace-free. It is subject only to the natural wear
voltage must be larger than and tear of components and their statistical failure rate.
the nominal voltage - 10%).
When ordering spare parts, please give the manufacturing num-
Mains switch OFF/ON
ber shown on the type plate, the machine type and the name of
RESET key/service
the spare part.
Please send in equipment for repair only after it has been cleaned and
is free from any materials which may constitute a health hazard. Use
only cleansing agents which have been approved by IKA to clean IKA
devices. To remove use:
Dyes
Mains switch OFF/ON / service
Construction materials water containing tenside / isopropyl alcohol
Set safety temperature higher.
Cosmetics
Mains switch OFF/ON
Foodstuffs
Allow the device to cool down,
Fuels
then refill with medium.
For materials which are not listed, please request information from IKA.
Mains switch OFF/ON
Wear the proper protective gloves during cleaning of the devices.
Mains switch OFF/ON. When Electrical devices may not be placed in the cleansing agent for the pur-
switching on, a calibration is pose of cleaning.
automatically carried out. Before using another than the recommended method for cleaning or
decontamination, the user must ascertain with the manufacturer that this
Mains switch OFF/ON
method does not destroy the instrument.
Service
Service
isopropyl alcohol
water containing tenside / isopropyl alcohol
water containing tenside
water containing tenside
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