Enter the measured output voltage (volts), the module gain (V/V), and the full scale range (volts) into the calculator to determine the Thermocouple Input Voltage.

## Thermocouple Input Voltage Formula

The following formula is used to calculate the Thermocouple Input Voltage.

**Vt = Vo / G + FSR**

- Where Vt is the Thermocouple Input Voltage (volts)
- Vo is the measured output voltage (volts)
- G is the module gain (V/V)
- GSR is the full scale range (volts)

## How to Calculate Thermocouple Input Voltage?

The following example problems outline how to calculate Thermocouple Input Voltage.

**Example Problem #1**

- First, determine the measured output voltage (volts). In this example, the measured output voltage (volts) is determined to be 120 .
- Next, determine the module gain (V/V). For this problem, the module gain (V/V) is measured to be 52 .
- Next, determine the full scale range (volts). In this case, the full scale range (volts) is found to be .003.
- Finally, calculate the Thermocouple Input Voltage using the formula above:

Vt = Vo / G + FSR

Inserting the values from above and solving yields:

Vt = 120 / 52 + .003 = 2.31 (volts)

**Example Problem #2**

Using the same method as above, determine the variables required by the formula. For this example problem, these are:

measured output voltage (volts) = 152

module gain (V/V) = 23

full scale range (volts) = -.01235

Enter these given values into the calculator or above yields:

Vt = 152 / 23 – .01235 = 6.5963** **(volts)