Garnet SeeLeveL Special 809-DM User Manual page 14

compared with the stored level. If the new level is lower than the
stored amount, then the new level is stored as the starting point.
If the new level is the same as the stored level, nothing further
is done. If the new level is higher than the stored level, and if
the scanned tank is one not being viewed, then the difference is
calculated to see if it exceeds 30 increments.
When the level has risen more than 30 increments, the alarm is
triggered. This turns on the HORN LED and activates the warning
alarm output which sounds the warning horn or lights the warning
light. The display will show the tank number in alarm in the upper
right hand display (e.g. "tAn3") and "rISE" in the lower left display.
If there are multiple alarms occurring, then the display will show
each alarm indication in turn. When the PTO is disengaged, the
display and HORN LED will show the alarm but the alarm output
will be off. This prevents slosh from activating the warning horn
during driving.
To acknowledge (bypass) the alarm, the tank that is alarming
must be first selected as the viewed tank using the corresponding
tank button. Then the HORN button must be pressed, this will
deactivate the warning alarm output and reset the rising level
alarm. While the HORN button is pressed the upper left display will
show "bYPS". The level that is shown when bypassed will become
the new starting point for subsequent rising level calculations. If
multiple tanks are in alarm at the same time, they all must be
bypassed before the alarm is deactivated.
The overfill warning alarm complements the rising level alarm.
It shares the same output and only operates on the tank being
viewed. The trip point of the alarm is set using the 817 Truck
Gauge Programmer as A2, with the bypass reset point as A3. This
alarm is normally used during tank filling to alert the operator that
the tank is at the full point. It will also serve as a warning that the
tank has been unintentionally filled.
When the tank level is below the trip point the alarm is off and the
warning alarm output is not active. When the tank level rises so
that it is equal to or above the trip point, the alarm is activated,
which turns on the HORN LED and activates the warning alarm
output. There is no additional indication on the display when the
alarm is triggered. When the PTO is disengaged, the HORN LED
will show the alarm but the alarm output will be off. This prevents
slosh from activating the warning horn during driving.
To bypass the alarm, press the HORN button, this will turn off
the HORN LED and the alarm output. While the HORN button is
pressed the upper left display will show "bYPS". The left decimal
Page 14 809-DM Manual