05
06
1. Size of the current jaw: Φ 50 mm.
2. HOLD key: data hold key; press the HOLD key, the last
reading on the screen will freeze and the “HOLD” symbol will
be displayed; press the HOLD key again and the clamp will
return to normal measurement mode.
3. Function selection wheel: selection wheel for choosing the
measurement function.
4. Function selection key: key to manage measurement
functions.
5. Input terminals:
Terminal
Fun
tio
n
V1
Input terminal to measure the first phase;
use the yellow test lead for connection
COM/V2
Input terminal to measure the second
phase; use the black test lead for
connection.
Common terminal: ground input terminal for
all measurement functions; use the black
test lead for connection
V3
Input terminal to measure the third phase;
use the green test lead for connection
6. LCD display: 4-digit digital display; 7-segment LCD to
display measurement function, result, and unit symbol.
7. Trigger: press the trigger and the clamp will open;
release it and the clamp will close.
8. RS232C interface: the specialized optical-electrical
interface cable is used for online communication with the
PC, as well as for data logging and data trend curve on
the PC.
Select wheel functions
The function selector wheel is used for switching on and for
selecting the measurement function according to the
following table:
S
y
mb
o
l
Wheel position
Func
tion
s
OFF
OFF position
To turn off the clamp
KW
(1 fase)
Active power
position
To measure active
power, etc.
Φ
(1 fase)
Single phase phase
angle check position
To measure the phase
angle, such as cos Φ
and sin Φ, etc.
KW/Φ
(3 fase)
Three-phase apparent
power position
To measure three-phase
apparent power, etc.
A~
AC current harmonics
check position
To measure harmonics
of AC current, etc.
V~
AC voltage
harmonics check
position
To measure AC
voltage harmonics,
etc.
Note:
When the caliper turns off automatically, be sure to turn the
wheel to the “OFF” position; turn on the clamp after 5
seconds.
