27
28
6
Display will show
MAX
symbol by pressing MAX/MIN key so as to display the maximum
active power, voltage and current during measurement. Please press MAX/MIN key to show
MIN
symbol on LCD and display the minimum active power during measurement. Please
press
MAX/MIN
key so that
MAX
and
MIN
symbols flicker together. It can
display current value and record the maximum value and the minimum value at the same
time during measurement. Please press the key for a long time to exit the maximum/
minimum value mode.
Note:
Please do not measure AC voltage of more than 600
r.m.s
and AC current of 1000A (r.m.s).
1
Press MENU to select gear of
Power factor (cos(
)
+ Voltage (V)+ Current (A)
;
2
Jaw shall be fixed to measured conduits in corresponding phase locations. That is, user
shall measure a certain phase of three-phase circuit so that jaw is on corresponding conduit.
3
Please refer to Figure 4, 5 & 6 of UT240 manual for wiring of three-phase four-wire system,
three-phase three-wire system or single-phase two-wire system.
4
As shown in Figure 10-1, please press SELECT key to select
the 1st phase location of
1 for load of three-phase four-wire
system. It also can display power factor (cos(
)), voltage (V)
and current (A) for phase location
1.
7.2Power factor
cos(
)
+ Voltage (V)+ Current (A)
Figure
As shown in Figure 10-2, please press SELECT key to select
the 2nd phase location when adopting three-phase four-wire
system for load so as to display active power, voltage and
current of phase location of
2.
Figure
Figure
Please press SELECT key to select the 3rd phase location
of
3 for load of three-phase four-wire system. It also can
display power factor (cos(
)), voltage (V) and current (A) for
phase location of
3.
Measurement operation of the 1st and 2nd phase locations is the same as that of three-phase
four-wire system after tripping the 3rd phase location of measurement.
5
There is no measurement function of the maximum/minimum value for this function gear.
Note:
Please do not measure AC voltage of more than 600V
r.m.s
and AC current of 1000A
r.m.s
.
UT241/242/243 OPERATING MANUAL
UT241/242/243 OPERATING MANUAL
