MK138 temp 40°C to 60 °C

Kits Mini Kits Range
1

I want to use this kit for temperatures from 45 to 60 Celsius. Hysteresis should be minimum approx. 5°C
Where to change resistors?
Thank You
PS:I make my first steps in Electronics

2

Please check the board, the resistor to change are indicated.
Sorry, no values, please experiment.

3

[quote=“dremans”]I want to use this kit for temperatures from 45 to 60 Celsius. Hysteresis should be minimum approx. 5°C
Where to change resistors?
Thank You
PS:I make my first steps in Electronics[/quote]

The resistor R7 should be lowered to R 5M5 to lower Hysteresis, but I think you need to change the thermistor to get higher temps!!

I have asked the same question, and I think the thermistor needs to be changed but I don’t know what ohmic value to buy!!

Windy

4

No need to change the thermistor.

5

Change the NTC Thermistor to a value of 15k Ohms this will get you up into the realms of 40 Deg C

6

Hello,

Wouldn’t be easier to change the resistors as these are easier to find?

The resistors that need to be changed are printed on the PCB.