Olympus nortec 600, User Manual, Page: 101 / 374

DMTA-10040-01EN, Rev. E, February 2018
Control Functions 91
FINE
A grid with 13 horizontal (centered) and 10 vertical divisions is displayed.
The grid divisions furthest to the left and right are half the normal width.
COARSE
A grid with 6.5 horizontal (centered) and 5 vertical (centered) divisions is
displayed. The grid divisions at the top and bottom are half the normal width,
and grid divisions furthest to the left and right are one-quarter the normal
width.
WEB
Provides a polar grid.
ZOOM
Adjusts the viewable portion of the NORTEC 600 screen. The null-point area of
the instrument screen is magnified by applying a horizontal and vertical digital
gain of 10.
In ZOOM mode, all display functions are disabled, with the exception of ZOOM
OFF or ON .
To enable ZOOM , press the DISP menu key ( ) twice, followed by the E key.
With ZOOM highlighted, rotate the knob to turn Zoom on or off.
4.3.5 Alarm Menu — ALARM Key
Four types of alarms are available: box, polar, sector, and sweep. The alarm menu
controls the following functions:
1. Enable ( ON ) or disable ( OFF ) the alarms.
2. Determine the polarity of the alarm (positive or negative).
3. Enable or disable DWELL time (0 s to 10 s), which is the length of time the alarm
condition continues after the alarm threshold was first detected.
To access the alarm menu, press the ALARM menu key ( ). For additional
information, see “Alarm Menus” on page 292.