Graphical Displays
1919-R User Manual
57
To simulate an analog needle:
1.
In
Power
,
Energy
, or
Pulsed Power
mode, press
Menu
and enter
Display
.
2.
Go to
Graph Type
and select
Needle
. Return to the main display screen.
3.
To expand the needle graph ±5x of the present reading, press
Zoom
. Press
Zoom
again to
return the needle range to full scale.
4.
To subtract the background and set the current reading to zero, press
Offset
. Press
Offset
again to cancel. For further details, see
5.
Press
Persist
to keep older measurements on the screen and to display numerically the
Min
and
Max
values measured. Press
Persist
again to cancel.
8.3.1
Modes
The
Modes
that Needle displays can be used with include:
Power
Energy
Pulsed Power
8.3.2
Persist
The persistence feature enables you to identify what the full range of measurements actually is,
including the maximum and minimum readings of the present set of measurements.
Press the
Persist
key to continue to display previous readings as well as to show the minimum and
maximum measurements.
Figure
8-16 Pyroelectric Energy Needle with Persistence
