testo 54 Serie Bedienungsanleitung Seite 51

6 6 . . 1 1 C C h h a a n n g g i i n n g g t t h h e e D D i i s s p p l l a a y y d d u u r r i i n n g g O O p p e e r r a a t t i i o o n n
Pressing the key once for 2 sec will
identify the function currently selected. If
within these 2 sec the
again, then the display will proceed to
Key
1 Following actuation the corresponding
value of the chosen function remains in
the display. During a PowerOff the func-
tion currently selected will be saved. At
the next PowerOn the corresponding
value of this function will be shown again
in the display.
6 6 . . 2 2 R R e e s s e e t t M M I I N N / / M M A A X X v v a a l l u u e e
Resetting is only possible if this has been
enabled in the parameter mode.
6 6 . . 3 3 D D i i s s p p l l a a y y H H o o l l d d
The Display Hold function is only available
for use with the current measured value
and for the totalizer value.
For as long as a high level signal
key is pressed
Message Display
1
Actual measured value
1
Minimum value (when activated)
1
Maximum value (when activated)
the next display function. The new identi-
fication will be displayed for 2 sec to con-
firm this. After 2 sec the corresponding
value of the selected function will be dis-
played.
Select Min/Max value display
• press the red key.
• the stored value is cleared
( > 4 V DC ) is present at the MP input,
then the display is "frozen".
The MIN/MAX capture, alarm monitoring
and totalizer functions continue in the
background.
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