Why is there a knob on the ML309 Thermistor Pod?

The knob on the ML309 Thermistor Pod is only active during delta temperature readings and has no effect on the signal coming from the pod when set to absolute temperature readings. When the pod is set to record ?T, the knob can be used to set the baseline from which the delta is taken.

If you require further assistance this or any other issue, please contact your local ADInstruments Technical Support.