Amprobe RLD-1 Refrigerant-Leak-Detector - Manual (Page 11)

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Automatic Ambient Reset Feature
This Refrigerant leak detector features an Automatic
Ambient Reset function that sets the unit to ignore
ambient concentrations of refrigerant.
• Automatic Ambient Setup - Upon initial power
on, the unit automatically sets itself to ignore the
level of refrigerant present at the tip. Only a level,
or concentration, greater than this will cause an
alarm.
� CAUTION!
Be aware that this feature will cause the unit to
ignore any refrigerant present at turn on. In other
words, with the unit off if you place the tip up to
a known leak and switch the unit on, no leak will
be indicated!
• Ambient Reset Feature - Resetting the unit during
operation performs a similar function it programs
the circuit to ignore the level of refrigerant
present at the tip. This allows the user to ‘home-in’
on the source of the leak (higher concentration).
Similarly, the unit can be moved to fresh air and
reset for maximum sensitivity. Resetting the unit
with no refrigerant present (fresh air) causes any
level above zero to be detected.• After the unit
is warmed up, the default sensitivity level is set at
“Medium” and Auto Reset function is “ON”
• Auto Reset function is best used initially when
user is moving around trying to identify leakage
source. Once the leak source is determined, cancel
the Auto Detect function to proceed with leakage
measurement.
• Auto Reset function should be turned OFF when
use in fixed position leakage detection