48
5. Operation
5.1.
Basic Operation
5.1.5. Maximum/Minimum Value Display
On the Max/Min value screen, a maximum value, present value, and minimum value are displayed in one
screen by measuring item.
However, for harmonics, the following maximum value only is displayed.
・
Harmonic current: The total RMS value of the phase where a value was the largest in every phase.
・
Harmonic voltage: The total distortion ratio of the phase where a value was the largest in every phase.
■
Display examples
5.1.6. How to Display Maximum/Minimum values
When you press
, the screen switches to the Max/Min value display.
By pressing
again, the screen returns to the present value display.
On the Max/Min value screen, the following display switching is available as the present value screen.
Button operation
Function
Press
Measuring items are switched in the following order.
However, measuring items that are not included
in the phase wire system,
display pattern, and additional screen are not displayed.
Press
For 3-phase 4-wire system, phases are switched in the following order:
・
A, DA:
・
V:
・
W, var, VA, PF:
・
A
N
, DA
N,
and Hz do not have phase switching.
For 3-phase 3-wire/1-phase 3-wire system, the phases of A, DA and V are
switched.
For 1-phase 2-wire system, no phase is switched.
Press
for
2 seconds
Enter the cyclic display mode of measurement screen.
Press
for
2 seconds
Enter the cyclic display mode of phase.
5.1.7. How to Clear the Maximum/Minimum Values
On the Max/Min value screen, pressing for 2 seconds clears the maximum and minimum values of the
displayed measuring item and turns to the present values.
In addition, pressing and simultaneously for 2 seconds on the screen clears all maximum and
minimum values and turns to the present values.
When password protection is enabled, the
maximum and minimum values are cleared after you enter the
password.
Communication function also enables to clear all maximum and minimum values. In this case, password
input is not necessary.
MAX/MIN
MAX/MIN
RESET
＋
RESET
Average
→1 Phase→2 Phase→3 Phase
V
AVG
(L-N)
→V
1N
→V
2N
→V
3N
→V
AVG
(L-L)
→V
12
→V
23
→V
31
Total
→1 Phase→2 Phase→3 Phase
DISPLAY
PHASE
DISPLAY
PHASE
First line:
Maximum value
Second line: Present value
Third line:
Minimum value
Fourth line: -
<Example of Current>
<Example of Harmonic current
>
Maximum value
Harmonic degree
Example for display switching between the present value and Max/Min value
Presentt value display
Max/Min value display
MAX/MIN
A→A
N
→DA→DA
N
→V→W→var
HV←HI
N
←HI←Hz←PF←VA
Содержание ME96SSEB-MB
Страница 64: ...63 7 Installation Dimensions ME96SSEB MB mm ...
