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1k 5%.
Curious! To those advocating 10.2 at 3%, does it not worry you to be specifying three significant digits on a resistor that has 3% tolerence?
Quote from: Andy Watson on May 06, 2019, 07:05:35 pm1k 5%.That would be my guess as well if the resistor is part of the input protection. Likely a fusible 1k resistor found in many higher end multimeters.http://mrmodemhead.com/blog/fluke-87-fusible-resistor/@Captnshacky, is that resistor open in your clamp meter?
Does this look correct? Its a 1k 5%https://www.mouser.com/ProductDetail/Vishay/NFR2500001001JA500?qs=%2Fha2pyFadujwYBQf3%252BFYSuuGxPDNPv1QpIGWG5vyaRjUWSvp39XiAA%3D%3D
Quote from: Captnshacky on May 07, 2019, 11:44:33 pmDoes this look correct? Its a 1k 5%https://www.mouser.com/ProductDetail/Vishay/NFR2500001001JA500?qs=%2Fha2pyFadujwYBQf3%252BFYSuuGxPDNPv1QpIGWG5vyaRjUWSvp39XiAA%3D%3DThe one you linked is 1/3 W. Most fusible resistors in the input protection is 1W or 2W. I suggest this one as per modemhead's bloghttps://www.digikey.com/products/en?keywords=OY102KEAs a test to see if your clamp meter works, and assuming your existing resistor R2C is open (since you didn't answer me earlier), I would just put in a normal 1k resistor to test low voltage measurements like a 1.5V AA cell. If that works, then order the replacement part.
Will it matter that its 10% and not 5%? Thanks
Since RC2 is open, it's prudent and very quick, qucker for you test, than for me to write this out, PTC, SPG1, SPG2 and SPG3.The PTC should be around 1k ohm. SPG1, 2 and 3 should all measure open circuit.
all correct 1.7k ohms on PTC Thank you so much for the help.