Test Data Storage; Read Saved Data; Rs232C Data Interface - Mastech MS2205 Operation Manual

Measuring power of 3-phase 4-line load
(for imbalanced load)
In the case of imbalanced load, the measuring process
is the same as that of 1-phase 2-line system, and the
measuring mode is set as 1-phase mode. connect the
black clip to the middle line, and then simultaneously
switch the yellow clip and clamp sensor to
corresponding wires; under this mode, power and power
factor of each line can be tested. (To test phase
sequence, connect voltage clips to the three lines one
by one, with the middle line not connected)
Yellow
Yellow
1PHASE
Red
Black
Red
Black
Measurement of power and power factor
of 3-phase 4-line circuit

Test Data Storage

When the meter is under HOLD mode, you can press
REC/SAVE button to display the serial number to be
saved and press ▲/▼ button to select serial number,
and then press SET button to confirm saving. Test
results are saved in the meter, and up to 100 groups of
data can be saved in the meter.
Before pressing SET button, if you press REC/SAVE
button to quit saving, data will not be saved, and it will
return to the previous menu.
Yellow
1PHASE
1PHASE
Black
Red
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Read Saved Data

1.When any data is saved in the meter, you can switch it
to READ SAVED DATA position for data retrieving.
2.Switch function-switching knob to SEARCH position
and press HOLD button to display HOLD.
3.Press READ button to show the saved serial number
and data on LCD.
4.If you need to check the records stored previously or
afterwards or harmonic level, press ▲/▼button to
make selections.
5.when harmonic level data is displayed , press watt
button, thenpress ▲/▼button to select record number.
6.To delete data, just press CLEAR button, and CLR will
be displayed; then, press SET button to confirm it, and
data will be deleted. Before pressing SET button, if you
press CLEAR button, data will not be deleted, and it
will return to the previous menu.

RS232C Data Interface

1.Insert RS232C interface wire into the socket on the
meter, and rotate interface wire clock-wise to lock the
wire in the power meter; connect the standard RS232C
plug on the other end of the interface wire to PC COM
port, and now real-time data transferring with PC can
be realized through the infrared communication
RS232C interface. If you wish to unplug the RS232C
interface wire from the power meter, firstly, rotate the
interface-wire plug in the meter counter-clockwise,
then, take it out after the interface wire is unlocked.
2.If you press RS232 button, the currently measured data
can be recorded in real time under WINDOWS;
3.If you press HOLD button, and then READ button, and
then RS232 button, the saved data can be uploaded
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