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keithley 2303 OVERFLOW in current line

2302, 2303, 2303-PJ, 2304, 2306, 2306-PJ, 2306-VS, 2308
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maaii11
Posts: 1
Joined: June 27th, 2018, 10:00 pm
Country: Taiwan

keithley 2303 OVERFLOW in current line

Post by maaii11 » June 27th, 2018, 10:05 pm

My problem is that the current line of the digital display is reading OVERFLOW. When the instrument wasn't wired to anything I was getting a current reading that jumped between 1-2 A so I wired a 10 ohm, 5 W resistor and set the voltage to 1V. I assumed this would give me a current of .1A (.1A *10ohm = 1V) with a power drain of 0.1W (0.1A^2 * 10ohm = 0.01 *10 = 0.1W).

The current line has been reading OVERFLOW no matter what I do. The current limit is set to 5A and, though I am certain this is a display issue rather than a screwup in the circuit (since the DMM is reading correctly).

Please advise.

Thank you,
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