UNI-T UT15B PRO - Page 3

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
I
.
Overview
UT
15
B
PRO
/
UT
17
B
PRO
/
UT
18
B
PRO
is
highly
reliable
true
RMS
multimeter
with
auto
backlight
function
.
Equipped
with
its built
-
in
VFC
anti
-
interference
start
mode
,
it
can
filter
the
carrier
frequency
interference from
sine
wave
,
various distorted
voltage signals
,
and stabilize the
output
voltage
of
measuring
frequency
converter
.
UT
17
B
PRO
/
UT
18
B
PRO
is
equipped
with
frequency
and
duty
ratio mode
in
DC / AC function
and
temperature
measurement
function
(
resolution
:
0.1
°
C
)
.
For UT
18
B
PRO
,
the
LED
measurement
voltage
is
up
to
12
V
and
it
can
automatically
identify
positive
and
negative
pole
.
This series
of
products
also
give
full function
error
detecting
protection
of
up
to
30
kVA
energy
,
to
ensure
safer
operation
.
UT
15
B
PRO
/
UT
17
B
PRO
comes
with
CE
,
cETLus
certification
according
to
CAT
III
1000
V
/
CAT
IV
600
V
and UT
18
B
PRO
comes
with
CE
,
cETLus
certification
according
to
CAT
II
1000
V
/ CAT
III
600
V
.
Table
of
contents
1
.
Overview
2
.
Features
3
.
Accessories
4
.
Safety
Instruction
5
.
Electrical
Symbols
6
.
General
Specifications
7
.
External
Structure
8
.
LCD
Display
9
.
Function
Selection
Knob
and Buttons
10
.
Measurement
Operation
Instruction
11
.
Technical
Specifications
12
.
Maintenance
-
4
4
5
5
8
9
II
.
Features
•
True
RMS AC
voltage
and
current
,
accurate measurement
of
nonlinear
signal
.
•
Large
-
size
LCD
,
6000
-
count
analog
-
digital display
,
fast
ADC
/
analog
-
digital
convertor
.
•
Built
with
VFC
LPF
to
accurately
measure
distorted
voltage
and
variable
-
frequency
voltage
.
•
Smart
measurement
of
capacitance
.
In
REL
mode
,
the
meter
will
automatically
exit
REL
mode
at
>
6.2
pF
.
•
MAX
/
MIN
variation
can
be
captured
for
voltage
,
current
and resistance
measurement
.
•
Full
function
protection
for
false
detection
,
withstanding
maximum
overvoltage
of
1000
V
,
designed
with
over
-
range
alarm
function
.
•
Auto
backlight
function
.
•
Flashlight
function
.
•
UT
18
B
PRO
has
12
V LED
measurement
function
(
automatically
identify
positive
and
negative
pole
)
.
10
11
12
14
23
30
4
3