Thermocouple NPM

Thermocouple Voltage Conversion

This library converts between voltage and temperature and vice versa for the 8 most common thermocouple types.

View a simple demo of it in action.

import Thermocouple from 'thermocouple';

let tempC = Thermocouple.millivoltsToTemp('e', 68.787);
let mVolts = Thermocouple.tempToMillivolts('k', 983.45);

millivoltsToTemp

static millivoltsToTemp(tcType: string, mVolts: number): number

Argument	Type	Description
tcType	string	Thermocouple type. Valid types: `'b'\|'e'\|'j'\|'k'\|'n'\|'r'\|'s'\|'t'`
mVolts	number	Voltage value in millivolts. Valid range depends on thermocouple type
returns	number	Temperature in °C. Returns `NaN` if input is outside thermocouple range

tempToMillivolts

static tempToMillivolts(tcType: string, temp: number): number

Argument	Type	Description
tcType	string	Thermocouple type. Valid types: `'b'\|'e'\|'j'\|'k'\|'n'\|'r'\|'s'\|'t'`
temp	number	Temperature value in °C. valid range depends on thermocouple type
returns	number	Voltage in millivolts. Returns `NaN` if input is outside thermocouple range

Thermocouple specific classes

In addition, there are thermocouple specific classes which have similar methods plus access to the valid input ranges.

import { TypeKThermocouple } from 'thermocouple';

let typeK = new TypeKThermocouple();

let tempC = typeK.millivoltsToTemp(28.484);   // 684.62...
let mVolts = typeK.tempToMillivolts(983.45);  // 40.629...

let [minV, maxV] = typeK.voltageRange;        // [-6.458, 54.886]
let [minT, maxT] = typeK.tempRange;           // [-270, 1372]
let name = typek.name                         // 'k'