Controlling The Temperature Via Contact Thermometer; Maintenance And Cleaning - IKA DRY BLOCK HEATER 1 Mode D'emploi

Timer / Counter
After the device has been switched on, the "Timer/ Counter" but-
ton (I) can be used to toggle between timer mode and counter
mode.
Timer
Pressing the buttons "+" (G) and "-" (H) allows selection of a
time period of up to 99 hours and 59 minutes. Once the heating
function (F) is activated, the preset time starts to run. When the
total time has run down to 00 hours and 00 minutes, a warning
buzzer sounds for 30 seconds and in addition the display flashes.
The heating function is then deactivated.

Controlling the temperature via contact thermometer

The preferable method for controlling the average temperature
is with the contact thermometer. After the set point temperature
has been adjusted, this results in a short heating-up time, practi-
cally no temperature drift and only minor fluctuation in tempe-
rature.
A 6-pin jack is located on the rear side of the instrument for
connecting the contact thermometer or the contact plug. The
electronics of the instruments returns a test current that must
flow via connector pins 3 and 5 for the heating plate to heat up.
Settings
For the detailed instructions for settings and limit values, refer to
the operating instructions for the instrument you are connecting.
The target temperature of the medium is set at the contact
thermometer. The heater buttons +/- (J) and (K) on the de-
vice can be used to preselect the required surface tempera-
ture of the heating plate.
The device is maintenance-free. It is only subject to the natural
wear and tear of components and their statistical failure rate.
Cleaning
- For cleaning disconnect the mains plug!
- Use only cleaning agents which have been approved by IKA to
clean IKA devices.
These are water (with tenside) and isopropanol.
- Wear protective gloves during cleaning the devices.
- Electrical devices may not be placed in the cleansing agent for
the purpose of cleaning.
- Do not allow moisture to get into the device when cleaning.
- Before using another than the recommended method for
cleaning or decontamination, the user must ascertain with IKA
that this method does not destroy the device.
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Counter
When the heating function is stated by pressing the button (F)
the counter is activated. In counter mode the time is counted
upwards from 00 hours 00 minutes until the heating function is
stopped. The counter always starts from 00:00 hh:mm.
Selection of Timer / Counter
Pressing the button (I) toggles between timer mode and counter
mode. The mode can be activated only when the heating func-
tion is off.
Safety contact thermometers
acc. to DIN 12 878 class 2 or acc. Gerstel are connected with
a three-wire cable, the test current flows through the contact
thermometer.
Safety function
If the test current is interrupted because of e.g. breakage of
contact thermometer or falling out of the cable plug, the hea-
ting cuts off. The required plug allocation is indicated on a refe-
rence plate above the diode bushing.
Contact thermometer without safety circuit
acc. to DIN 12 878 class 0. The instrument only heats if the test
current circuit is closed by an electrical connection of the plug
pins 3 and 5.

Maintenance and cleaning

Spare parts order
When ordering spare parts, please give:
- device type.
- serial number, see type plate.
- position number and description of spare part,
see www.ika.com.
- software version
Repair
Please only send devices in for repair that have been clea-
ned and are free of materials which might present health
hazards.
For repair, please request the "Safety Declaration (Deconta-
mination Certificate)" from IKA or use the download printout
of it from IKA website at www.ika.com.
If your appliance requires repair, return it in its original packaging.
Storage packaging is not sufficient when sending the device -
also use appropriate transport packaging.