On this schematic from the datasheet there is a low pass filter of the first order rather than an integrator. The summary gain is equal to the op-amp feedback resistance divided by the equivalent resistor on the negative input. Get a scope and measure what is going on in this circuit. If you remove the thermistor the equivalent gain resistor will increase so it will increase the overall gain. But when a gain resistors lost parameters or one is open or half open then the gain of this op-amp i very high and such circuit behaves as pure integrator and may be very sensitive. Also capacitors may loose its capacitance. The role of capacitors is to additionally decrease the gain on high frequency signals. The same with thermistor, when its is hotter the gain decreases.
I would like to have such board for experiments
A working one of course Posted after 9 minutes 21 second:
Crimfell писал(а):
It helped to read the datasheets for shimka, thanks to the google translator.
Hehe its time to learn English
Electronics is based on English and translator will not give you proper technical context. I use translator from Russian to English but I am not a native English speaker. I use English because my own language is internationally dead and useless.Tell me please what languages do learn at school in Russia and how is it going? I had English almost from the beginning of the elementary school.