UNI-T UT15B PRO - Page 11

UT
15
B
PRO
/
UT
17
B
/
UT
18
B
PRO
User Manual UT
15
B
PRO
/
UT
17
B
/
UT
18
B
PRO
User Manual
6
.
AC / DC Current
Measurement
(
Figure
7
)
1
)
Turn the
function
selection knob
to
the
A
£
/
mA
£
/
pA
£
scale
.
2
)
When the scale is
A
£
,
insert the red
test
lead
to
the
A
£
port
.
When the scale is
mA
£
/
pA
£
,
insert the red
test
lead
to
the
mASs
/
pAsS
port
.
Insert he black
test
lead
to
the
COM
port
.
3
)
The
meter
should be
in
series
with
the load
,
the
AC
measurement
reading
is
true
RMS
value
.
4
)
Operation
of
frequency
measurement
in
current
scale
(
UT
17
B
PRO
)
:
press
Hz
%
button
to enter
frequency
measurement
mode
with
the
range
of
10
Hz
~
100
kHz
.
7
.
Frequency
and
Duty
Cycle
Measurement
(
UT
17
B
PRO /
UT
18
B
PRO
)
WT
—
|
>
—
|
r
When
measuring
AC
voltage
or
current
,
press
Hz
/
%
to enter
f
?
frequency
measurement
mode
,
press
again
to enter
duty
cycle
measurement
mode
.
U
UT
17
B
PRO
u
©
8
.
Temperature
Measurement
(
UT
17
B
PRO /
UT
18
B
PRO
)
(
Figure
8
)
1
)
Turn the
function
selection knob
to
°
C
/
°
F
scale
,
and the
LCD
displays
OL
.
2
)
Insert the
thermocouple
anode
to
the
C
port
,
and the
cathode
to
the
COM
port
,
fix
the
test
probe
on
the measured
object
to
measure
the
temperature
.
ThjeRMS
6000
Counts
li
"
Bu
>
l
IHHI ll
«
II
^
Warning
:
•
Turn
off
the
power
in
circuit
before
the
meter
being
in
series
with
the circuit
.
•
Proper input
port
and scale should be selected
in
measurement
.
High
range
should be
selected
if
the
measured
current
is unknown
.
•
Fuses
are
provided
inside the
input
jacks
of
A
£
/
mA
£
/
pA
£
.
Do
not connect
the
test
leads
in
parallel
with
any
circuit
,
which
may
cause
damage
and
injury
.
A
.
Warning
:
The
temperature
sensor
is
only
suitable
for
K
-
type
(
Ni
-
Cr
~
Ni
-
Si
)
thermocouple
,
the
configured
point
thermocouple
is
only
for
the
temperature
measurement
below
230
°
C
/
446
°
F
(
°
F
=
1.8
*
°
C
+
32
)
Figure
8
Figure
7
20
19