Extech
Instruments
11 GX900-EU-EN V1.6 4/14
KEYPAD
DESCRIPTION
The
meter’s
12
push
‐
button
keypad
activates
features,
augments
functions
selected
by
the
rotary
switch,
and
allows
the
navigation
of
the
displayed
menu
structure
F1
‐
F2
‐
F3
‐
F4
keys
Selects
sub
‐
functions
related
to
the
currently
selected
primary
mode
set
by
the
rotary
switch
Cursor
buttons
Use
the
cursor
buttons
to
selected
items
in
a
menu
tree,
adjust
display
contrast,
scroll
information,
and
perform
data
entry
HOLD
button
Freezes
the
displayed
reading
and,
if
desired,
saves
the
screen
shot.
The
HOLD
button
also
accesses
the
AUTO
HOLD
feature
which
is
detailed
in
this
Instruction
Manual
MAX/MIN
button
Starts
and
stops
the
Maximum
(MAX)
and
Minimum
(MIN)
reading
memory
OK
button
Confirms
data
entry
Rotary
Switch
Selects
the
primary
measurement
function;
for
each,
the
meter
presents
a
standard
display
for
that
function
(range,
measurement
units,
and
modifiers).
See
table
below:
V~
AC
voltage
measurements
V–
DC
and
AC+DC
voltage
measurements
mV
DC(AC)
millivolts,
ac
+
dc
millivolt,
Temperature,
Clamp
Current
measurements
Resistance,
Diode
test,
capacitance,
continuity
measurements
Hz
%
Frequency
and
duty
cycle
measurements
RPM
Counter
RPM,
Counter
measurements
A
AC,
dc
and
ac
+
dc
amps
measurements
mA
AC,
dc
and
ac
+
dc
milliamps
measurements
uA
AC,
dc
and
ac
+
dc
microampere
measurements
up
to
5,000
μ
A
INFO
button
Opens
the
information
window
Backlight
button
Selects
backlight
intensity
from
low
to
high.
Also
used
to
return
from
an
auto
‐
power
off
condition
