Turn On And Set Rotary Speed - Heidolph LABOROTA 4000eco Mode D'emploi

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reference for setting nominal temperature.
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.
Damage to the guard hood! Set a maximum setpoint of 120 °C for operation with
a guard hood.
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.
The temperature limiter having dropped, is an indication to have the hot bath
inspected by a service engineer authorized by Heidolph.
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Turn on and set rotary speed

First turn rotary evaporator's power switch (1b) to ON.
Before turning power switch to ON, make sure temperature control knob (1c)
is in extreme left position to avoid accidential rotation of the evaporator flask.
Adjust rotational speed with knob 1c. Refer to scale for speed setting. In extreme left
position of this knob, speed is zero.
fig. 22
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fig. 23