- 2 -
C
C
C
C
ut
ut
ut
ut
off
off
off
off
the
the
the
the
power
power
power
power
and
and
and
and
complete
complete
complete
complete
discharge
discharge
discharge
discharge
before
before
before
before
measur
measur
measur
measur
ing
ing
ing
ing
resistance,
resistance,
resistance,
resistance,
continuity,
continuity,
continuity,
continuity,
diodes,
diodes,
diodes,
diodes,
or
or
or
or
capacitance
capacitance
capacitance
capacitance
with
with
with
with
the
the
the
the
live
live
live
live
circuit
circuit
circuit
circuit
...
.
Before
Before
Before
Before
measuring
measuring
measuring
measuring
current,
current,
current,
current,
check
check
check
check
the
the
the
the
meter
meter
meter
meter
’’’
’
s
s
s
s
fuses
fuses
fuses
fuses
(see
(see
(see
(see
Chapter
Chapter
Chapter
Chapter
6
6
6
6
“
“
“
“
Testing
Testing
Testing
Testing
the
the
the
the
Fuses
Fuses
Fuses
Fuses
”
”
”
”
).
).
).
).
T
T
T
T
urn
urn
urn
urn
power
power
power
power
OFF
OFF
OFF
OFF
to
to
to
to
the
the
the
the
circuit
circuit
circuit
circuit
before
before
before
before
connecting
connecting
connecting
connecting
the
the
the
the
meter
meter
meter
meter
to
to
to
to
the
the
the
the
circuit.
circuit.
circuit.
circuit.
Remember:
Remember:
Remember:
Remember:
Plug
Plug
Plug
Plug
the
the
the
the
meter
meter
meter
meter
with
with
with
with
the
the
the
the
circuit
circuit
circuit
circuit
when
when
when
when
measuring
measuring
measuring
measuring
current
current
current
current
and
and
and
and
d
d
d
d
o
o
o
o
not
not
not
not
connect
connect
connect
connect
test
test
test
test
lead
lead
lead
lead
in
in
in
in
parallel
parallel
parallel
parallel
with
with
with
with
any
any
any
any
circuit.
circuit.
circuit.
circuit.
Symbols
Symbols
Symbols
Symbols
Symbols used on the meter and in this manual are explained in Table 1-1.
Table
Table
Table
Table
1-
1-
1-
1-
1
1
1
1
.International
.International
.International
.International
Electrical
Electrical
Electrical
Electrical
Symbols
Symbols
Symbols
Symbols
Chapter
Chapter
Chapter
Chapter
2
2
2
2
Getting
Getting
Getting
Getting
Acquainted
Acquainted
Acquainted
Acquainted
Introduction
Introduction
Introduction
Introduction
Study this chapter to be acquainted with all the features and functions of the meter.
Turning
Turning
Turning
Turning
the
the
the
the
Meter
Meter
Meter
Meter
On
On
On
On
To turn the meter on, press
to power on and press
again for more than 2 seconds to power off.
When the power is turned on, the source starts to make self-diagnosis internally and displays on full screen. After this,
appropriate operation should be carried out.
Attention
Attention
Attention
Attention
Power-
Power-
Power-
Power-
on:
on:
on:
on:
To
To
To
To
ensure
ensure
ensure
ensure
the
the
the
the
correct
correct
correct
correct
operation
operation
operation
operation
of
of
of
of
the
the
the
the
meter
meter
meter
meter
with
with
with
with
power
power
power
power
on.
on.
on.
on.
It
It
It
It
is
is
is
is
good
good
good
good
practice
practice
practice
practice
to
to
to
to
turn
turn
turn
turn
off
off
off
off
the
the
the
the
power
power
power
power
supply
supply
supply
supply
pausing
pausing
pausing
pausing
5
5
5
5
seconds,
seconds,
seconds,
seconds,
and
and
and
and
then
then
then
then
restart
restart
restart
restart
the
the
the
the
meter
meter
meter
meter
...
.
Automatic
Automatic
Automatic
Automatic
Power
Power
Power
Power
Off
Off
Off
Off
The meter will go into automatic power- off mode if you have not changed the rotary switch position or pressed a button for a set period.
The automatic power off is preset to 10 minutes. From the Setup menu (see Chapter 5” Changing the Default Settings”), users can
decide whether they want to use the function of the automatic power-off or not.
Backlight
Backlight
Backlight
Backlight
O
O
O
O
n
n
n
n
To turn the backlight on, press
to turn on and press
again to turn off.
Automatic
Automatic
Automatic
Automatic
backlight
backlight
backlight
backlight
off
off
off
off
The automatic backlight off is preset to 30s. If user doesn’t turn off backlight within 30s, the meter will turn off backlight automatically. From the
Setup menu (see Chapter 5” Changing the Default Settings”),
users can decide whether they want to use the function of the automatic
backlight off or not.
Low
Low
Low
Low
Battery
Battery
Battery
Battery
Indicat
Indicat
Indicat
Indicat
or
or
or
or
The battery indicator
in the upper right corner of the display notifies you that the batteries are low and should be replaced.
Warning
Warning
Warning
Warning
To
To
To
To
avoid
avoid
avoid
avoid
false
false
false
false
readings,
readings,
readings,
readings,
which
which
which
which
could
could
could
could
lead
lead
lead
lead
to
to
to
to
possible
possible
possible
possible
electric
electric
electric
electric
shock
shock
shock
shock
or
or
or
or
personal
personal
personal
personal
injury,
injury,
injury,
injury,
replace
replace
replace
replace
the
the
the
the
batteries
batteries
batteries
batteries
as
as
as
as
soon
soon
soon
soon
as
as
as
as
the
the
the
the
battery
battery
battery
battery
indicator
indicator
indicator
indicator
appears.
appears.
appears.
appears.
If the battery indicator
appears, it will lead to the shut-up of the storage function.
Outer
Outer
Outer
Outer
Structure
Structure
Structure
Structure
See Figure 2-1.
Input
Input
Input
Input
Jack
Jack
Jack
Jack
Figure2-2 and Table2-1 explain the input jacks.
Rotary
Rotary
Rotary
Rotary
Switch
Switch
Switch
Switch
Figure2-3 and Table2-2 explain the measuring functions of the rotary function switch positions.
Symbols
Symbols
Symbols
Symbols
Meaning
Meaning
Meaning
Meaning
Symbols
Symbols
Symbols
Symbols
Meaning
Meaning
Meaning
Meaning
Alternating
current
Earth ground
Direct current
Fuse
Alternating and
direct current
Double
insulated
Important
information
Battery
CAT
CAT
CAT
CAT
II
II
II
II
CAT11 Overvoltage(Installation) Category11,
Pollution Degree 2 per IEC61010 refers to the
level of Impulse Withstand Voltage protection
provided. Typical locations
include:
plug and
the
connecting
electric
equipments,
home
appliance, convenient tools, domestic plug,
plugs 10m distant from type 3 circuit 20m
distant from type 4 circuit.
Summary of Contents for 98A
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