T
ARGETING
Page
46
Electronic Copy of LTI’s Impulse User’s Manual 8
th
Edition © October 1998
Clearing Gate Values
If you want to clear out a gate value instead of
setting it, access the value as described above and
long-press Back or edit in zero.
Using the Filter Option
When you are working in an area that is crowded
with potential targets, you need to make certain the
instrument is detecting the right target. The best
way is to use a reflector as a target and to filter out
all others. To help accomplish that, the Impulse
offers a FILTER option to lock onto only highly
reflective targets.
Here’s how you turn FILTER on:
1. Press Forward/Back as necessary to show the
SYS option.
2. Press Fire to select the SYS option. The
FILTER indicator begins to blink, and the
current state of the FILTER option is shown in
the middle of the screen.
3. Press Fire to toggle FILTER between On and
OFF.
4. Press Back to save the desired setting and
back out to the main display. The FILTER
indicator displays in distance measurement
modes to show you when the option is on.
If you have FILTER turned on, always use a
reflector as a target because the instrument will
reject light returned from non-reflective targets.
