13
Operation
Mode button functions
The function of the mode button is dependent on the test function selected:
Test selected Function Options Comments
V/º C Volts / mV Temperature requires suitable transducer
Continuity
RLO
Buzzer
ENABLE/DISABLE
Buzzer ON
Buzzer OFF
Buzzes on <2 Ω
May be changed in SETUP.
Refer to “Setup options” on page 26.
Insulation
RSIO
Buzzer
ENABLE/DISABLE
Buzzer ON
Buzzer OFF
Buzzes on <1 MΩ
May be changed in SETUP.
Refer to “Setup options” on page 26.
GFCI
0º / 180º
selection
0º
180º
(Press and release)
GFCI Type
AC
A
AC(s)
A(s)
B
(Press and HOLD)
Ground (RE) Touch voltage limit 50 V / 25 V Press and release
SETUP
Refer to instrument
setup “Setup options”
on page 26.
Test inhibit
Each test mode has conditions under which testing will be inhibited, as below:
Insulation
Detection of a circuit voltage above 50 V (a warning is displayed at 25 V).
Continuity
Detection of a circuit voltage above that used by the instrument will inhibit testing.
GFCI testing
Touch voltage detected or predicted to exceed 50 V (or 25 V depending on instrument configuration).
Supply voltage over range or under range.
Supply Frequency out of specification.
Ground testing
External voltage greater than 25 V present.
Leads not connected as per the test requirements.
Potential stake not within range (Rp).
Current stake not within range (Rc).
Other conditions that will inhibit testing include:
Battery exhausted
All testing will be inhibited in the event of a flat battery, refer to “Battery and fuse location, fitting and
replacement” on page 10.
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