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The voltage generated b y a thermocouple in a pilot flame should be?
Wiki User
∙ 11y ago
30 MV open circuit
Wiki User
∙ 11y ago
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What is the function of a striker?
A striker is usually used to light a flame or the Bunsen burner flame. This is a form of quartz that releases a spark when hit, thus called as a striker.
5 example of qualitative and quantitative observations before burning a candle.?
qualitative - smells of smoke, hot air from flame, flame is orange and blue at the bottom, flame moves around, [unscented candle - no smell], wick is burning and turning black. quantitative - sorry i don't have the answer. I'm looking for it myself :(
What composes the inner cone and outer cone of a flame?
1 verticie oxygen oxygen
How does a candle get smaller and smaller?
The flame burns the wax which melts smaller and smaller. Therefore the candle melts 'til there is nothing left.
Why is it important to pass the solution being heated back and forth at 45 degrees Celsius on a flame?
So it does not burn (if food) and so the test tube does not shatter
What is the voltage of a thermocouple in a pilot flame?
It should be around 20 millivolts while operating in a flame.
Why does your gas water heater flame go out as soon as it lights. My pilot stays lit. Is this a bad T-Stat or gas valve?
sounds like you have a bad thermocouple. The thermocouple senses the pilot flame and produces voltage to tell main flame to light. Thermocouple can be bought at any hardware store.
What if your water heater will not light on after trying once?
Sometimes it can take up to TWO MINUTES for the thermocouple to take effect ( proof of flame) If the flame does not stay on the thermocouple should be replaced by a qualified licensed plumber
What should you do if the pilot won't stay lit on a Teledyne Laars pool heater but will stay on as long as the button on the control unit is pushed down but the flame goes out when released?
This is probably due to a faulty thermocouple. The thermocouple generates a small voltage when hot that is used as a security device that keeps the gas flowing to the pilot. These are relatively inexpensive (UK about �18). You can check if this is the problem by measuring the voltage on the wires coming back from the pilot. When you have the red switch depressed, check the voltage (should be about 30mV). If there's no voltage, then change the thermocouple. The thermocouple will generate up to 50mV in a pilot flame. If it falls below 20mV it should kill the fuel source. It may take a few minutes to generate enough voltage in order to keep the pilot lit, so you may have to depress the button for a minute or more. This would be typical if your unit has been off for an extended period of time.
How does a thermocouple flame-proving functions?
Y
How does a thermocouple flame proving function?
Y
What is Thermocouple?
In terms of security, the thermocouple is an integral component of the furnace. A little flame that burns continuously is a thermocouple. It is frequently employed in gas furnaces that have standing pilots. In order to maintain a warm tip, the thermocouple's top is placed in the flame. When the pilot flame goes out, the thermocouple automatically shuts off the gas valve in the furnace. Thermocouples are used in everyday good ,electric power generator etc you can avail thermocouple for best price at partshnc website
What should you do if the pilot light won't stay lit on a Teledyne Laars pool heater and the pilot generator registers up 500 MV?
From what I have read, 500mV is not enough to keep the pilot light lit. Here is what I read on a different site: "You can check if this is the problem by measuring the voltage on the wires coming back from the pilot. When you have the red switch depressed, check the voltage (should be about 200mV). If there's no voltage, then change the thermocouple. The thermocouple will generate up to 750mV in a pilot flame. If it falls below 550mV it should kill the fuel source." Hope this helps.
How does a cooker flame safety device work?
It stops the gas supply to the burner when there is no flame sensed by the thermocouple inside the burner.
How does a thermocouple flame-proving function?
Unit 31 question 26?
Does the safety valve on a gas range opens when the thermocouple detects no pilot flame?
yes
Is thermocouple a temperature measuring device?
No, by itself a thermocouple can only measure temperature difference between two points (junctions) in a circuit. To use a thermocouple as a temperature sensor, you must know the temperature of one junction by some other means. Often an additional temperature sensor is used. However, in some applications temperature difference is enough. For example, in gas appliances a thermocouple detects presence of a flame because the flame is much hotter than room temperature-- you don't need to actually measure the flame temperature. ====================== Yes, it is. If you look up "thermocouple" in Wikipedia, you will find a very detailed explanation of how and why they work.
