Adjust Hot Bath Temperature - Heidolph HB 4000 digit Mode D'emploi

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E
Hazard of burns when running hot bath (2) at temperatures of more than 60° C.
Beware of metal edge of hot bath, fluid and evaporator flask.

4. Adjust hot bath temperature

Turn hot bath ON with power switch (2a); button lighted green.
-
Select heating bath temperature with rotary knob
-
(2b). During setting with rotary knob (2b), display
is going to show nominal temperature. Nominal
temperature display is flashing to easily be
distinguised from actual temperature. This feature
allows setting accuracy of 1°C. Setting job
complete (do not touch rotary knob for 5
seconds), display is going to change to actual
temperature.
As a reminder that at nominal
temperatures exceeding 100°C oil must
be used as heating fluid, display is going
to show "OIL" for one second during
nominal temperature setting.
Temperature marks arranged around rotating knob (2b) just are a rough reference
for setting nominal temperature. Beginning with the 100°C mark, this scale is
printed red, which means that oil will be the only medium used above 100°C.
A yellow pilot light (2e) on top of the switch lights when item is heating.
-
For reasons of safety, hot bath temperature is monitored by a temperature limiter. If
temperature control fails and actual temperature exceeds max. temperature by
about 10 %, the temperature limiter permanently disconnects heater.
This temperature limiter is located on the underside. Disconnect status is displayed by a red
-
button (2f) protruding over the base panel by about 2 mm. To reset temperature limiter just
depress red button (2f) after some time for chilling off.
2c
2d
2b
max
min
2e
2a
16
2d
fig. 1
2
display
2b
2e
2a
fig. 2

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