Hey there,
for an experiment I am using the heating plate. I want to heat a glycerol bath to 120°C. The magneting stirring is off. Temp set at 120°C. Now, as the temperature nears 120°C (e.g. at 110°C) an error ALL6 appears. I tried it with two different devices, the same happened to both.
In the manual it says, the error stands for when no heat increase is detected by the thermometer. Does anyone have a clue, why this happened? The temperature is still to increase after 110°C.
Thanks for a suggestion!
Regards, Vera
Hello Vera,
That is very puzzling.
The empiricist in me suggests setting the target to 130 °C, if your actual goal is 120°C: and then to forget about it.
This is with the plug-in 'wand' thermometer or the built-in sensor?
Hello! It is with the 'wand' thermometer. A colleague suggested to do the same: to go much higher in temperature, and it worked.
Yet the heating plates are sometimes not adding any heat to the bath (I see no increase for quite a period of time, e.g. no change from 99 to 100°C for 20 minutes although the set temp was at 120°C ). I wonder if this is a normal thing with the technology or if something is off with the device.
'Afternoon Vera,
To be fair, the typical 'nice' thermocouple or Pt100 thermometer has an intrinsic accuracy of +- 0.5 to 1.0 K.
So if the display shows 99°C, there really isn't a physical difference if it were to show 100°C.
As to why there is such a large discrepancy (20°C!) between the target and actual temperatures, that is a puzzle.
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