UNI-T UT15B PRO - Page 15

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
•
Overload
protection
:
1000
V
-
PTC
•
Remark
:
configured
point
K
-
type
(
Ni
-
Cr
~
Ni
-
Si
)
thermocouple
is
only
applicable
for
temperature
below
230
°
C
/
446
°
F
.
6
.
Frequency
/
Duty
Cycle
Measurement
(
UT
17
B
PRO /
UT
18
B
PRO
)
Range Accuracy
Resolution
±
(
0.1
%
+
3
)
10
Hz
—
1
MHz
0.01
Hz
—
0.001
MHz
8
.
DC Current
Measurement
±
(
1.0
%
+
4
)
1
%
-
99.9
%
0.1
%
Range Accuracy
Resolution
•
Overload
protection
:
1000
V
-
PTC
•
For
voltage
mV
scale
,
the
input
range
is
about
200
mVrms
~
30
Vrms
,
duty
ratio
is
5.0
%
-
95.0
%
,
which is
only
suitable
for
=
^
1
kHz
square
wave
measurement
.
•
For
voltage
V
scale
,
the
input
range
is
>
10
Vrms
.
For
1000
V
scale
,
the
input
range
is
^
100
V
.
Duty
ratio is
10.0
%
-
90.0
%
which is
only
suitable
for
50
Hz
or
60
Hz
.
•
For
current measurement
scale
,
the
input
range
of
frequency
/
duty
ratio
measurement
is
60
%
of
the
full
range
.
600
.
OpA
0.1
pA
pA
6000
pA
1
pA
±
(
0
.
8
%
+
3
)
60.00
mA
0.01
mA
mA
600.0
mA
0.1
mA
6.000
A
0.001
A
±
(
1.2
%
+
5
)
A
7
.
Temperature
Measurement
(
UT
17
B
PRO
/
UT
18
B
PRO
)
10.00
A
0.01
A
Range Accuracy
Resolution
•
Overload
protection
:
lOOOVrms
•
The
meter
will
alarm
if
the
input
current
is
>
10
A
,
the
LCD
will
display
OL
if
the
input
current
is
over
11.00
A
.
±
(
6.0
%
+
2
°
C
)
-
55.0
—
0
±
2
°
C
-
55
—
500
°
C
°
C
>
0
—
50.0 0.1
°
C
±
(
2
.
o
%
+
rc
)
>
50.0
—
500.0
±
(
10
%
+
2
°
F
)
-
67
°
F
—
32
°
F
±
4
°
F
-
67
—
932
°
F
>
32
—
122
°
F
°
F
1
°
F
±
(
4.0
%
+
4
°
F
)
>
122
—
932
°
F
28
27