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A thermopile generates electricity from the heat of a pilot light. It generates about 750 mV that turns on the main gas valve to the fireplace.
A thermocouple is heated by the pilot light but it uses pressure to hold the pilot light gas supply valve open. When the thermocouple is heated, pressure increases holding open the main gas valve. If it cools down, the pressure goes down and closes the gas valve.
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∙ 14y ago
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Is thermocouple voltage used for battery charging?
No, as the voltage of a single thermocouple is very low , you need a thermopile (thermocouples connected together) and a circuit to get a readable voltage at the other end.
What is the millivolt range of a gas valve?
The millivolt range of a gas valve is typically around 250 to 750 millivolts. This low voltage is generated by a thermocouple or a thermopile and is used to open and close the gas valve to control the flow of gas.
How millivolt switch works?
I am assuming that you mean switching a millivolt gas value. The switch applies a voltage to the gas valve thus allowing gas to flow. The voltage is provided by a thermopile. This device transforms the heat from the pilot into a voltage that can be used to control the valve. This system does not require an external voltage source. It does require the pilot to continuously operate. A thermopile consists of a number of thermocouples that are wired in series. This allows an increase in the voltage that would be provided by a single thermocouple.
Is thermocouple output linear?
The output of the thermocouple is linear.
How does a thermopile work?
A thermopile is a device that generates electrical voltage when exposed to a temperature gradient. It consists of multiple thermocouples connected in series, which produce a cumulative voltage output. When one end of the thermopile is heated and the other end is cooled, a voltage difference is generated due to the temperature difference across the thermocouples.
How does a gas hot water heater generate electricity?
thermopile
What instrument makes a continuous automatic temperature record?
thermopile
Is thermocouple used in fridges?
Yes, thermocouple is used in fridges !
Which materials could you use to create a thermocouple?
To create a thermocouple one needs thermocouple wire, a means of spot welding the wire, and wire strippers. A thermocouple is used to measure temperature.
How do you install a thermocouple for a gas water heater?
Most thermocouples are held in place at the pilot light by pushing them into a clip that grabs it on both sides. The control end is held in place by a nut that the shaft of the thermocouple goes through.
What is the purpose of the thermocouple?
The thermocouple keeps a gas pilot light burning.
Is a thermocouple an active or passive transducer-why?
is a thermocouple an active or passive transducer?-why?
