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  • Millivolt Tester

    My millivolt tester got crushed in the van, I was in a hurry and threw a water heater on it.

    I have been looking everywhere, unable to find a millivolt tester. I use it to check thermocouples and PG9's, any suggestions?

    Anyone here have any ideas? Nothing Fancy, I have 2 multi tester already, I just need a millivolt tester!
    sigpic

    Robert

  • #2
    Re: Millivolt Tester

    how much are you looking to spend i checked grainger real quick and they have multimeters (I know that isnt what you are looking for) that go down to 1mV for about $45

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    • #3
      Originally posted by wrench spinner View Post
      how much are you looking to spend i checked grainger real quick and they have multimeters (I know that isnt what you are looking for) that go down to 1mV for about $45



      45 is great, Grainger was on my mind, it just slipped my mind earlier.

      I will check Grainger, thnks!
      sigpic

      Robert

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      • #4
        Re: Millivolt Tester

        Robert

        Can you please post the brand and model of the tester you've been using? I might be able to find a direct replacement for it. A DMM set on a very low Voltage range is going to pickup random electrical noise and give false readings. You need a lower input impedance for thermocouples and mili-Volt control work. This could be had using a resistor but that can become a real PITA for you to deal with all the time. About how many mili Volts do you normally need to measure? I have something in mind but am not sure if it would work. All of my HVAC work so far has used 24 VAC control circuits. If I think a thermocouple is bad it just gets replaced.

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        • #5
          Re: Millivolt Tester

          Aaron and I as well as many others here I'm sure use Flukes.

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          • #6
            Re: Millivolt Tester

            I use a fluke-115 everything from thermocouples to 230v well pumps it does everything i need watch out though alot of the cheaper multimeters out there only measure down to 50mV... a thermocouple is generally 30mV


            this runs about $130 or you can try the one I PM'd you about last night from Grainger

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            • #7
              Re: Millivolt Tester

              Originally posted by drtyhands View Post
              Aaron and I as well as many others here I'm sure use Flukes.
              I always knew you were a fluke!
              I love my plumber

              "My Hero"

              Welcome, Phoebe Jacqueline!

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              • #8
                Re: Millivolt Tester

                Originally posted by drtyhands View Post
                Aaron and I as well as many others here I'm sure use Flukes.

                Thanks
                sigpic

                Robert

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                • #9
                  Re: Millivolt Tester

                  Originally posted by wrench spinner View Post
                  how much are you looking to spend i checked grainger real quick and they have multimeters (I know that isnt what you are looking for) that go down to 1mV for about $45
                  Thanks.I will be getting this one.
                  sigpic

                  Robert

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                  • #10
                    Re: Millivolt Tester

                    Take a good look at the FLUKE model 116 which they designed for the HVAC Tech. It may be more DMM than you need but that's better than getting a lessor model and then wanting what it doesn't give you.

                    Info: http://us.fluke.com/usen/products/sp...(FlukeProducts)

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                    • #11
                      Re: Millivolt Tester

                      I bought a multimeter from Big Lots for 4 bucks. I'm sure its super high quality ;-) I just needed it to measure the resistance on a dvd lazer pot. Definitely a throw away

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                      • #12
                        Re: Millivolt Tester

                        Originally posted by Josh View Post
                        I bought a multimeter from Big Lots for 4 bucks. I'm sure its super high quality ;-) I just needed it to measure the resistance on a dvd lazer pot. Definitely a throw away


                        LOL


                        I picked one up yesterday, excellent, and it was only $105.00, multimeter, and I also picked up a $10.00 thermocouple adapter

                        thank you all who helped.
                        sigpic

                        Robert

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                        • #13
                          Re: Millivolt Tester

                          Originally posted by Josh View Post
                          I bought a multimeter from Big Lots for 4 bucks. I'm sure its super high quality ;-) I just needed it to measure the resistance on a dvd lazer pot. Definitely a throw away
                          I know you're not a professional but diagnostic tools are what I spend the most money on. If you can't trust your tool reading then all your experience is useless. I know it's too late but I use a Fluke 16 as it can also read temperature.
                          Buy cheap, buy twice.

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