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This Article is about the level of constant current sourced from the multimeters when using the ohms mode. 

Below is a table for the digital multimeters listing the level of voltage and current sourced when in the ohm's mode:

Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-110Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-113Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-114Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-115Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-116Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-117Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-233Ohms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-279FCOhms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Fluke-3000FCOhms< 2.7 V DC0 to 6.0 M ohms        < 0.7 V DC6.0 M ohms to 40.0 M ohms < 0.9 V DC< 350 uA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-77-IVOhms< 8.0 V DC0 to 600 k ohms        < 600 mV DC600 k Ohms to 50 M ohms < 4.6 V DC< 1.1 mA
Fluke-175Ohms< 8.0 V DC0 to 600 k ohms        < 600 mV DC600 k Ohms to 50 M ohms < 4.6 V DC< 1.1 mA
Fluke-177Ohms< 8.0 V DC0 to 600 k ohms        < 600 mV DC600 k Ohms to 50 M ohms < 4.6 V DC< 1.1 mA
Fluke-179Ohms< 8.0 V DC0 to 600 k ohms        < 600 mV DC600 k Ohms to 50 M ohms < 4.6 V DC< 1.1 mA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fljuke-83-5Ohms< 7.9 V DC0 to 6.0 M Ohms       < 4.1 V DC    6 M Ohms to 50 M            ohms or 60 ns           < 4.5 V DC 600 ohms / 1mA               6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA             50 M ohms/ 0.5uA
Fluke-87-5Ohms< 7.9 V DC0 to 6.0 M Ohms       < 4.1 V DC    6 M Ohms to 50 M            ohms or 60 ns           < 4.5 V DC 600 ohms / 1mA             6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA             50 M ohms/ 0.5uA
Fluke-88-5Ohms< 7.9 V DC0 to 6.0 M Ohms       < 4.1 V DC    6 M Ohms to 50 M             ohms or 60 ns           < 4.5 V DC 600 ohms / 1mA             6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA             50 M ohms/ 0.5uA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-27-IIOhms< 2.8 V DC     0 to 6 M ohms              < 850 mV DC   6 M ohms to 50 M             ohms or 60 ns          < 1.3 V DC 600 ohms / 1mA               6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA             50 M ohms/ 0.5uA
Fluke-28-IIOhms< 2.8 V DC     0 to 6 M ohms              < 850 mV DC   6 M ohms to 50 M           ohms or 60 ns        < 1.3 V DC 600 ohms / 1mA             6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA               50 M ohms/ 0.5uA
Fluke-87V-MaxOhms< 2.8 V DC      0 to 6 M ohms             < 850 mV DC   6 M ohms to 50 M           ohms or 60 ns          < 1.3 V DC 600 ohms / 1mA             6 k ohms/ 100uA           60 k ohms/ 10uA         600 k ohms/ 1uA             6 M ohms/ 1uA               50 M ohms/ 0.5uA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-283FCOhms< 2.7 V DC   0 to 6 M ohms      < 0.7 V DC6 M ohms to 50 M    ohms     < 0.9 V DC< 350 uA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-287Ohms5 V DC0 to 500 k ohms 550mV DC500 k ohms to 50 M ohms or 50 ns        < 5 V DC 500 ohms / 1mA               5 k ohms/ 100uA           50 k ohms/ 10uA           500 k ohms/ 1uA             5 M ohms/ 1uA             50 M ohms/ 0.5uA         500 M ohms/ 0.3uA
Fluke-289Ohms5 V DC0 to 500 k ohms 550mV DC500 k ohms to 50 M ohms or 50 ns        < 5 V DC 500 ohms / 1mA               5 k ohms/ 100uA           50 k ohms/ 10uA         500 k ohms/ 1uA             5 M ohms/ 1uA             50 M ohms/ 0.5uA       500 M ohms/ 0.3uA
Meter Model NumberFunctionOpen Circuit Test VoltageFull Scale VoltageFull Scale VoltageShort Circuit Current
Fluke-15B+OhmsN/AN/AN/A 400 ohms/ 150uA       4k ohms/ 150uA     40k ohms/ 50uA   400k ohms/ 5uA     4M ohms/ 500nA   40M ohms/ 50nA
Fluke-17B+OhmsN/AN/AN/A 400 ohms/ 150uA       4k ohms/ 150uA     40k ohms/ 50uA   400k ohms/ 5uA     4M ohms/ 500nA   40M ohms/ 50nA

 

 

Keywords: Ohm, Ohms, Ohms mode Source Curren, Short Circuit Current, Open Circuit Test Voltage, DMM, Digital Multimeter, 15B+. 17B+, 110, 113, 114, 115, 116, 117, 175, 177, 179, 77IV, 83V, 83-5, 87V, 87-5, 87V Max, 88V, 88-5, 233, 279FC, 283FC, 287, 289, 27-II, 28-II, 28-IIEX, 3000FC