Carmanah M850 & M860 Self-Contained LED Lantern Instructions
v1.
1
Jan
201
6
11
Checking Day-to-Night and Night-to-Day LUX Transition Levels
It’s unlikely ATON units will ever have to change the LUX (Ambient Light Levels) on their
M800 Carmanah lanterns. Ambient light levels are used to determine when the lantern will turn
on at night or turn off during the day, depending on the amount of ambient light detected by the
lantern’s internal daylight control sensor. Carmanah’s standard factory default settings match
the USCG’s requirements. But when troubleshooting, you may be asked to report on your
lantern’s LUX level settings. So, it helps to be able to quickly confirm those settings:
To read the Day-to-Night (d2n) and Night-to-Day (n2d) settings, do the following:
Step
Action
1
Press the
Power Key
until the lantern flashes and the LED
display turns on. Ensure the lantern is in the “On” mode or you will
not be able to scroll through the menu.
2
Using
the
Down Key
, scroll through the menu display until it
shows
d2n
. It should then display the number
250L
. Press the
Down Key
again and the display will show
n2d
. It should then
display the number
320L
. d2n = 250L and n2d = 320L are the
correct USCG LUX transition level settings.
Turning Off the “Tap” Feature
For lanterns deployed in heavy weather conditions where vibrations and shocks may
inadvertently activate the Tap-to-Activate feature, it can be turned off by performing the
following steps:
Step
Action
1
Press the
Power Key
until the lantern flashes and the digital
LED display turns on. Ensure the lantern is in the “On” mode or it
will not allow you to scroll through the menu.
2
Using
the
Down Key
, scroll down through the menu display
until it shows
tAP
for the Tap Activated Feature.
3
Press
the
Set Key
to unlock the setting.
4
Use
the
Down
or
Up Arrow Keys
to toggle between the
On
and
Off
selections and stop at Off.
5
Press
the
Set Key
again to lock the
tAP
setting to Off. The
lantern will provide three quick flashes to confirm that the setting
has been accepted and locked.
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