Over Temperature Limiter - Cole Parmer OVF-800 Series User Manual

4.6 Over temperature limiter

Over Temperature Limiter is a device to prevent fire due to overheating. If the temperature of the heater rises
abnormally above the temperature set in the Temperature Limiter, the temperature control is stopped and a
warning window is displayed with a beep.
※ If you want to use the Over Temperature Limiter as a temperature limiting function for sample
protection, set it in the following order.
(1) After setting the internal temperature of the instrument, press the Start/Stop button to operate the
device.
(2) When the target temperature is reached, the instrument should be stabilized for a certain period of
time.
(3) Turn the red knob counterclockwise using a screwdriver. Stop the knob when a warning is displayed
on the screen with a notification sound.
(4) Turn the red knob clockwise to set it at least 15% higher than the target temperature. (If you turn the
knob clockwise, you can see that the temperature limiter is operating.)
(5) Press the Start/Stop button twice.
※ During temperature control, if an alarm sound and an over temp warning window are displayed due
to overheating, check the warning window and solve the cause of the problem. When the temperature
goes down, it works again. If it is necessary to continue control with the same temperature, turn the red
knob on the temperature limiter to set the temperature at least 15% higher than the set temperature, and
press the Start button once to restart the unit.
52412Mechnicaloven_ver_1.0
[Over temperature limiter]
Knob
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