ACR Electronics SmartReader Plus Instrukcja Użytkownika Pobierz pdf (Strona 40)

SmartReader Data Loggers

selected Byte Count data units.

2. Short the "+" and "-" terminals of the channel with a piece of wire. Observe the Realtime

value for the channel.

3. Enter a Low calibration value of 50 - R, where R = the Realtime value observed in the

previous step.

4. Change the equation number to the correct one for your thermocouple type and connect

the highest possible temperature reference to the channel. Make sure you have selected

Celsius temperature units. Observe the Realtime values for the thermocouple channel

and the internal temperature channel (Channel 0.)

5. Calculate the Mid calibration value using this formula:

100 x ( (A - C) - (B - C) ) / (A - C)

where:

A = thermocouple channel reading

B = high reference temperature

C = internal temperature channel reading

For example, if your thermocouple channel reads 502°C at a high reference of 500°C,

and the internal temperature channel reads 25°C, the Mid calibration value is equal to:

100 x ( (502 - 25) - (500 - 25) ) / (502 - 25) = 0.419

6. Enter the Mid calibration value obtained in the previous step and save the setup to the

logger.

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ACR Electronics SmartReader Plus Instrukcja Użytkownika Strona 40