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New Fluke 113

Techbox last edited by

Hi = )

I have had several multimeters before but finally broke down and bought a Fluke 113. I have been messing with it trying to get used to it and understand it and there is something that is bothering me about it. I took a 3.2v coin cell battery out of a PC motherboard to measure it. I put the positive lead on the positive ( + ) battery side and the negative lead on the negative side and I get absolutely no read except open line. However, if I switch the positive lead and the negative lead around it reads correctly, anywhere from 2.6v to 3.2 volts depending on the age of the battery. Why is this??? ( and yes my negative lead is plugged into "com" and my positive lead is plugged into " +"

TIA
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@wrendral said in "Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design": I will go with a Li-Po Battery type: 304048 3.7V 1200mAh Might work, but maybe the internal protection will trigger with the high current peaks. I'd suggest you plan a 0 Ohm, (2512/THT) resistor as R2 and then replace it with a 100Ohm/1Watt if the protection triggers.
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