Ask Experts Questions for FREE Help !
Ask
    xcountry292's Avatar
    xcountry292 Posts: 16, Reputation: 1
    New Member
    		  
    #1

    Oct 14, 2009, 05:28 PM
    Testing flame sensors
    For a solid steel flame rod, what type of meter do I need to test it? How is the meter hooked up? What setting should the meter be on? What should the reading be? Hope someone can help me
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Oct 14, 2009, 05:46 PM

    As much as I would love to say I have the answer to this,, I don't. As an hvac tech, this is really something I should know, but have never been taught how to do , and never really had the forsite to investigate(basically always wondered how to do it, but never asked), I truly hope hvac1000 or another pro will come along and help us both learn the correct way to check a flame senser, and what type meters will accomplish this, I believe I have the meter to check it, just not sure about the technicallitys. xcountry292, betting we will get some great answers soon.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Oct 14, 2009, 06:28 PM

    See the Application note here: http://support.fluke.com/FInd-Sales/...21_eng_b_w.pdf

    The Fluke 116 will read in DC microamps.

    Meter datasheet: http://support.fluke.com/FInd-Sales/...16_ENG_B_W.PDF
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Oct 14, 2009, 07:27 PM
    Be sure the negative side of the meter is connected to
    the wire and the positive side of the meter is to sensor
    terminal.

    4. Place the unit into a heating cycle.

    5. As soon as flame is established a micro-amp reading
    should be evident once proof of flame (micro-amp reading)
    is established, the hot surface ignitor will be deenergized.

    6. The Integrated Ignition controls will have 1 to 4 microamps.
    If the micro-amp reading is less .8uA (micro-amp
    DC). Check for high resistance wiring connections, sensor
    to burner gap, dirty flame sensor, or poor grounding.

    7. Clean flame sensor with steel wool or emery cloth before
    replacing any components. DO NOT use sandpaper. I left this in some manufactures do not want sandpaper used but it works.

    See note below.

    NOTE: Contaminated fuel or combustion air can create a
    nearly invisible coating on the flame sensor. This coating
    works as an insulator causing a loss in the flame sense
    signal. If this situation occurs the flame sensor must be
    Cleaned with steel wool or emery cloth.

    This is the way you test most flame sensors.
    Attached Images
  1. File Type: pdf Doc1.pdf (42.4 KB, 698 views)
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Fixing sensors [ 5 Answers ]

Hello I'm a college student that interesting in fixing up my Honda! To where I want it to be... I'm having problems with my sensors

FAQ's on flame sensors [ 1 Answers ]

Northernheat expert where do I find the FAQ"S that you suggest I read

All oxygen sensors are bad [ 6 Answers ]

My check engine light is on and I got my catalytic converter replaced and that wasn't the problem. I used a scanner to determine what codes I would get and it's reading Bank 1 and Bank 2. It's not specifying which sensors. I know one of the codes is PO430. Does this mean that all four of my sensors...

Vacancy Sensors [ 3 Answers ]

Hello, Has anyone wired a Vancancy (or Occupancy) Sensor as 3-Way switches? I purchased a Watt Stopper Model CW-100 Occupancy sensor for a bathroom that is on a 3-way switch. The brochure says that they are not made for 3-way switching but I think it can be done. Thanks

View more questions Search