Specifications

23
Warning
To avoid possibility of electric shock, do not use Hold
mode to determine if circuits are without power. The
Hold mode will not capture unstable or noisy readings.
The Hold mode is applicable to all measurement functions.
• Press HOLD to enter Hold mode; the Meter beeps.
• Press HOLD again or turn the rotary switch to exit Hold 
mode; the Meter beeps.
• In Hold mode,
is displayed.
Operation of Hold Mode
The REL mode applies to all measurement functions except
frequency/duty cycle, diode and continuity measurement. It
subtracts a stored value from the present measurement value
and displays the result.
For instance, if the stored value is 20.0V and the present
measurement value is 22.0V, the reading would be 2.0V. If
a new measurement value is equal to the stored value then
display 0.0V.
To enter or exit REL mode:
• Use rotary switch to select the measurement function 
before selecting REL ∆ . If measurement function changes
manually after REL ∆ is selected, the Meter exits the REL 
mode.
• Press REL ∆ to enter REL mode, auto ranging turns off 
except under capacitance testing mode, and the present 
measurement range is locked and display ‘0’ as the 
stored value.
• Press REL ∆ again or turn the rotary switch to reset the 
stored value and exit REL mode.
Pressing HOLD in REL mode makes the Meter stop updating.
Pressing HOLD again to resume updating.
The Use of Relative Value Mode
Model UT205/UT206: OPERATING MANUAL