User Manual
GMC-I Messtechnik GmbH  19
11 Resistance Measurement
• Verify that the device under test is electrically dead. 
External voltages would falsify the measured result! 
• Set the function selector switch (6) at „Ω“
.
• Connect the device under test as shown.
Zero adjustment on the 660 Ω measuring range
When measuring small resistance values on the 660 Ω range, 
you can eliminate the resistance of the leads and contact resis-
tance by means of the REL function.
• Connect the test leads with the multimeter and join the free 
ends.
• Press and hold the PEAK (2) key and press the AUTO/MAN 
(4) pushbutton. The multimeter enters into the „REL“ mode. 
The „REL“ symbol is displayed on the LCD.
• The value „00.00“ (+1 digit) is shown on the main display 
while the resistance value measured at the time of pressing 
the pushbuttons is indicated on the sub-display and used 
as reference value.
• This value is automatically deducted from the values mea-
sured subsequently.
The REL function can be cleared
• by pressing and holding the PEAK pushbutton and then 
pressing the AUTO/MAN key. This is acknowledged by 
acoustic signals.
• by switching the multimeter off.










