The LM35 Volt out is amplified 3 times by CA3140, but why TempAverage / 3.4 ???

[Vincent-Pang]

Hi,

As the coding comment also stated that the LM35 Volt out is amplified 3 times by CA3140,
the temperature should be
TempValue = (double) TempAverage / 3.0 * (5/10.24);
right???

Here is the current code in LCD_Keypad_Shield_with_PH_Meter.ino

 TempValue = (double) TempAverage / 3.4 * (5/10.24); // LM35 connect to CA3140 for amplify 3 time