9
10
IX. Rotary Switch (Fig. 3)
OFF
A
HARM
Phase
Detect
Wh
W
W
3P
Description
Turn off the internal power supply of the product
AC current/voltage measurement
Single-phase power measurement
Three-phase power measurement
Harmonic measurement
Electric energy/electric energy accumulation mode setting
Phase sequence detection
Position
OFF
A/V
W/VA/var
3PW
HARM
Wh/Setting
Phase Detect
X. Button Descriptions
1. SELECT
(1) A~/V~ position: Short press this button to cyclically select ACA
→
ACV on main display,
the default position is ACA.
(2) W/VA/var position: Short press this button to cyclically select active power → apparent
power → reactive power → power factor → phase angel on main display, the default position
is active power.
(3) 3PW position: Under 3-phase 3-wire (3P3W, balanced) or 3-phase 4-wire (3P4W) mode,
short press this button to cyclically select active power → apparent power → reactive power
→ power factor → phase angel on main display, the default position is active power. Under
3-phase 3-wire (3P3W) mode, short press this button to cyclically select phase-combined
active power → P1 active power → P2 active power on main display, the default display is
phase-combined active power. Under 3-phase 4-wire (3P4W) mode, short press this button
to cyclically select phase-combined active power → phase-combined apparent power →
phase-combined reactive power → phase-combined phase angle → P1 active power → P2
active power → PC active power on main display, the default display is phase-combined
active power.
(4) HARM position: Short press this button to cyclically select voltage harmonic analysis →
current harmonic analysis, the default position is current harmonic analysis.
(5) Wh/Setting position: Short press this button to cyclically select single-phases electric
energy → electric energy accumulation mode setting, the default position is single-phase
electric energy.
(6) Long press this button to turn on/off Bluetooth.
UT219P User Manual
UT219P User Manual
Fig. 3
2. MAX/MIN
Short press this button to cyclically select real-time value
→
maximum value
→
minimum
value
→
average value on the main display, and to record the time of capturing maximum
and minimum values. Long press this button to exit maximum/minimum value measurement.
The measurement is valid only under such modes including AC voltage, AC current, single-
phase power, balanced three-phase power, etc.
3. RANGE
When this button is short pressed in auto range mode, the product enters manual mode, the
LCD shows “RANGE: MANUAL”, and the display is in current range. Press this button
continuously to select AC current ranges cyclically. When this button is long pressed, the
product exits manual range and enters auto range, “RANGE: MANUAL” does not appear on
the LCD.
4. HOLD/
Under measurement interface (except unbalanced three phase, electric energy and phase
sequence), short press this button to enter or exit data hold. When entering data hold mode,
the LCD shows “HOLD”; when exiting data hold mode, the LCD does not show “HOLD”.
Under the interface of switching wire connection, three-phase power enters its corresponding
wire-connection measurement interface when this button is short pressed.
Under electric energy mode, short press this button to start or stop accumulative counting.
Long press this button to turn on/off backlight. The backlight turns off automatically after it is
turned on for one minute.
5. /3P3W
For 3PW position, short press this button to select measurement mode of 3P3W balanced
load and unbalanced load.
Under harmonic measurement mode, short press to adjust down the order of harmonic.
6. /3P4W
For 3PW position, short press this button to select measurement mode of 3P4W balanced
load and unbalanced load.
Under harmonic measurement mode, short press to adjust up the order of harmonic.
Note: For the operating instructions of button of setting electric energy accumulation mode,
please refer to the operating instructions of measurement in electric energy position.
XI. Operating Instructions
Please check the three pieces of AAA batteries before measurement, if the battery voltage is
low, the symbol “ ” will appears on the LCD, then please replace the battery in time. Note
the symbol “ ” around the terminal, this symbol warns that the measured voltage cannot
exceed the specified voltage.
