K8067

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1

In the datasheet for the K8067 the accuracy says to be “2° full range” what does it mean? how wrong could the sensor tell the temperature, ±2°C?

And how long could the wires from a K8055 USB board be to the K8067 temperature sensor whitoute problems?

2

Over its complete range, it can be 2° off. If you use a smaller part of the range, accuracy will be better. As the unit is equipped with a current loop, a couple of tens of meters of wire should not be a problem.

3

How can i change the range i my VB program to gett better accuracy?

Now it look like this

degrees1 = CStr((101 * data1 / 256) - 23)

How will it look if i want to messure between +10 - +40 C to get better accurary?

So 20 meters wire between the K8055 and the temperature sensor are no problem, does it have to be shielded wire?

4

This accuracy has nothing to do with your VB software, it is a property of the K8067 hardware. As it is a current loop, you do not need to use shielded wire.