MA160
‐
en
‐
GB_V1.0
10/15
9
4.
Operation
CAUTION:
Read
and
understand
all
of
the
Safety
statements
listed
in
the
safety
section
of
this
manual
prior
to
use.
Powering
the
Meter
1.
Turn
the
rotary
function
switch
to
any
position
to
power
the
meter.
Check
the
batteries
if
the
unit
fails
to
power
ON.
Refer
to
the
Maintenance
section
for
battery
replacement.
2.
Turn
the
function
switch
to
the
OFF
position
to
power
OFF
the
meter.
3.
The
meter
has
an
Auto
Power
OFF
feature
(APO)
where
the
meter
switches
OFF
after
15
minutes
of
inactivity.
When
APO
is
enabled,
the
APO
icon
will
show
on
the
display
when
the
meter
is
powered
ON,
The
low
battery
symbol
appears
on
the
display
when
the
battery
voltage
weakens
below
the
threshold.
Display
Backlight
With
the
meter
powered
ON,
press
and
hold
the
backlight
button
to
switch
the
backlight
ON
or
OFF.
Note
that
excessive
use
of
the
backlight
will
shorten
the
battery
life.
Work
Light
With
the
meter
powered
ON,
press
the
Work
Light
button
on
the
right
side
of
the
meter.
A
momentary
press
will
switch
the
Work
Light
off.
The
Work
Light
lamp
is
located
on
the
back
of
the
unit
toward
the
bottom
of
the
clamp
jaw.
Note
that
excessive
use
of
the
backlight
will
shorten
the
battery
life.
Data
Hold
To
freeze
the
LCD
meter
reading,
press
the
Data
Hold
(
H
)
button.
While
data
hold
is
active,
the
H
display
icon
appears
on
the
LCD.
Press
the
(
H
)
button
to
return
to
normal
operation.
The
H
icon
will
switch
OFF.
Test
Lead
Considerations
Test
lead
probe
covers
can
be
removed
for
CAT
II
1000V
installations.
Use
the
test
lead
probe
covers
for
CAT
III
1000V
installations.
Do
not
measure
voltages
>
1000V
DC
or
600V
AC.
Remove
the
storage
caps
from
the
meter
end
of
test
leads
before
connecting
leads
to
the
meter.
Shop for Extech products at:
1.888.610.7664
ShopExtech
.com