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15.05.01
YAEE0013
33
6.5 Warning and safety functions
6.5.1 Overtemperature protection and testing
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− The units are designed for operation with non-flammable and flammable liquids to EN
61010-2-010!
− Set the overtemperature switch-off point. Recommended
setting 5°C above required bath temperature.
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− Not higher than 25 °C below the firepoint of
the bath liquid (➾ Section 5.3.).
− The actual switch-off point is indicated on the display, e.g.
110°C.
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− When the switch-off point is being adjusted by more than 2°C ! display shows MAX
and actual overtemperature switch-off point with 1°C resolution for approx. 4 s.
− The position of the potentiometer is decisive for the setting. The display is just a help
for the setting.
− Setting is possible only up to a upper limit of the operating temperature range + 5 °C.
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− When the bath temperature arises above the
overtemperature switch-off point.
1. Double signal tone sounds.
2. The display shows the indication for overtemperature
(TEMP) the fault triangle is flashing
!
heating is switched off on both poles,
! pump is switched off by the electronics
− Rectify the cause of the fault.
− Wait until the bath temperature has cooled down below the
switch-off point or set the switch-off point at a higher value.
− When the display shows TEMP, reset with the key.
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− Before the unit is run is running unattended for longer periods overtemperature
protection should be tested. Therefore:
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