Hi there. I'm having a problem with my fluke 8060A DMM.
The resistance readings are incorrect. Actually the reading value is higher. For example with 1.000k the DMM reads 1.01 and with 150k00 - about 250k. Tested with my fluke 187 these values are Ok. With a higher R value the readings becomes more incorrect.
I tested all DMM voltages. All of them are correct. R1, R2, RT1, Z1 has also correct values. Q3 and Q4 seems to be not leaky. In a Mohm range the meter shows OL and in conductance test the display shows 0.00
I checked Z5 resistor network and it seems to be Ok.
Only in diode test with 1k resistance, the voltage drop across this resistor is 0.92-0.93V (it must be about 1V). I was replacing the existing CR1 with an external current source and with fixed 1mA current the value is accurate but the resistance measurement not.
All of the voltages from table 5.8 are correct too.
I'm using this user manual as a reference:
http://assets.fluke.com/manuals/8060a_3vimeng0200.pdfMy multimeter hasn't extra RMS PCB. The RMS chip is placed on mainboard.
So I'm asking you for some ideas how to fix this issue.
Thanks!
Niki