Using a mechanical meter that requires 0.7 volts for full scale, a diode in parallel, will compress the top of the ohms scale allowing less accuracy, resolution, but first digit of ohms from 1 to 100,000 and volts and milliamps also over a wider range, without changing range. Other disadvantages are serious eye strain and skill required to zero the ohmmeter. Zeroing is very critical to accuracy. Other diodes are available which will compress the upper ohms scale with mechanical meters that require as little as 0.1 volts for full scale.

A series diode can compress the low end of the scale, as evidenced by low voltage ac ranges, on analog multimeters.

you may build a simple diode tester....

two leds red and green connect opposite prongs ( parallel ) in series a resistor ( 1 k ohm ) two nails ( as test probes ) and a 12 v battery...

connect a diode on probes.....green led will be ON ...shows it is ok

if both leds are ON ...shows diode is short

if none of them is ON ...shows diode is open

You can't. You need other stuff.

Maybe you have the question wong and it should be 'how do you test a diode with an ohmmeter?'. If so,, see link.

NEVER HEARD OF HOW SUCH A DESIGN CAN BE DONE. ARE YOU SURE ABOUT THE QUESTION?

you cant