UNI-T UT15B PRO - Page 7

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
X
.
Function
Selection
Knob
and
Buttons
VIII
.
LCD
display
(
Figure
2
)
X
.
»
)
RISTBl
MFiVIflllfll
°
F
°
C
-
W
-
%
r
LEDT
©
st
MAX
MIN
0
SMkQHz
Description
Functions
HTN
screen
V
~
,
V
-
.
mV
AC / DC
voltage
measurement
n
Resistance
measurement
Figure
2
Diode
PN
junction voltage
measurement
-
N
-
wnA
•
0
)
Circuit
continuity
measurement
(
’
ir
Auto
Manual
VFC
-
IF
Capacitance
measurement
Symbol Symbol
Frequency
measurement
Instruction Instruction
Hz
f
Duty
ratio
measurement
AC
voltage
exceeds
30
V
Resistance
measurement
unit
:
Q
,
kQ
,
MQ
%
OkOMO
l !
Temperature
measurement
Frequency
measurement
unit
:
Hz
,
kHz
,
MFIz
Hz
kHz
MHz
HOLD
Data hold
pA
^
mA
^
A
£
AC / DC
current measurement
Negative reading Duty
ratio
measurement
unit
%
Frequency
conversion
voltage
measurement
(
Variable
Frequency
Filter
)
VFC
AC
/
DC
Voltage
measurement
unit
:
mV
,
V
mV V
AC
/
DC
measurement
LED
TEST
LED
test
scale
pA
mA A
Current
measurement
unit
:
pA
,
mA
,
A
MAX MIN
Maximum and minimum
function
OFF
Power
off
nF
pF
Capacitance
measurement
unit
:
nF
,
pF
Maximum
/
minimum
measurement
MAX
/
M IN
Buttons
Operation
:
•
RANGE
button
:
press
to
switch between automatic
/
manual
ranges
,
once
every
press
will
switch
to
a
higher
gear
,
and
it
will
jump
to
the minimum
range
when
pressing
at
the maximum
range
.
To
quit
the manual
range
mode
,
users can
press
this button
for
over
2
s or
switch the
function
selection
knob
.
(
Only
suitable
for
V
~
,
V
—
,
AS
.
Q
)
Q
MAX
/
MIN
button
(
UT
17
B
PRO
/
UT
18
B
PRO
)
:
press
to
enter
manual
range
mode and
display
the
maximum
value
,
then
press
it
again
to
display
the minimum value
.
To exit the
MAX
/
MIN
measurement
mode
,
press
this button
for
over
2
seconds
or
switch the knob
.
(
Only
suitable
for
V
~
,
V
~
,
mV
£
,
Q
)
Low
battery
Centigrade
temperature
measurement
°
C
Auto
range
Fahrenheit
temperature
measurement
°
F
Auto
Manual
Manual
range
Variable
Frequency
Filter
VFC
-
N
-
Auto
backlight
Diode
measurement
BL
•
0
)
a
Circuit
continuity
measurement
Auto
power
off
A
LED
Test
Relative
measurement
LED
function
test
12
11