How do you adjust the zero ohms control on the back off ohmmeter?

To adjust the zero ohms control on the back of an ohmmeter, first ensure the meter is powered off and the probes are not touching anything. Then, turn the zero ohms adjustment knob or screw until the display reads zero when the probes are shorted together. This calibration ensures accurate resistance measurements. Finally, test the adjustment by measuring a known resistor to confirm the reading is correct.