Operator’s Manual
22
RMLD-FR
Doc No. 16086 Rev A, RMLD-FR Operator Manual
© 2021 Heath Consultants Incorporated. All rights reserved.
In order for the RMLD-FR
to detect gas, three
conditions must be met.
(see visual representation on page 18)
1.
Gas plume concentration
and size must be greater
than the alarm level of the
instrument.
2.
Infrared beam must
pass through the plume.
3.
Background target
(i.e., ground, building, etc.)
must reflect the
infrared beam back.
Operator must consider
several factors which
influence gas plume size
and concentration:
·
Low-flowing leaks
may produce small to
non-measurable plumes.
·
Surface types (i.e., concrete)
spread the leak and create
spot leaks through surface
cracks and holes.
·
Weather conditions dissipate
the plume faster (i.e., high
winds, higher temperatures).
·
Weather conditions change
the venting conditions and
spread of gas (i.e., heavy rain
and moisture in the soil,
frost conditions in winter).
Scanning With The RMLD-FR Instrument
Refer to your company’s specific training and procedures for being qualified for leak surveying.
Detection Through a Window
· Do not aim straight into a window.
Keep to an angle and sweep
across the window slowly.
· The laser may not penetrate certain
window types effectively, such as,
tinted, double pane, stenciled, etc.
· If there is no gas reading indicated
do not assume there is no gas
within the structure, ie. houses
office buildings. Continue scanning
common venting points.
WARNING: The visible green
Spotter laser is a Class 2 (II)
laser product.
Do not stare into beam or
view directly with optical
instruments.
WARNING: Avoid direct eye
exposure to the laser and do not
point in the direction of others.
Visible and Invisible Lasers are
deployed by this instrument.
NOTICE: Spotter laser is about 1.25”
to the right of the IR laser beam.
WARNING
NOTICE
Dead
Vegetation
Chimney
Windows
(Across Surface
& Around Edges)
Doors
(Under/Around)
Main Line
Main and
Service Lines
Foundation
& Crawlspace
Plumbing Vent
Soffit Vents
Under Eaves
Meter
Roof Vent
The first thing you will need to learn when scanning with the
RMLD-FR is to control the aiming of the laser and rate of
sweeping. Radical or abrupt motion may cause false detec-
tions due to rapidly changing distance or background that the
laser detects. Radical or abrupt motion may cause the IR beam
to not thoroughly scan the area. Here are a few tips for scanning:
WARNING - The RMLD-FR is
capable of scanning through
windows to possibly detect
methane gas. However, scanning
through windows is not guaran-
teed. False positives and
negatives may occur.
WARNING
Common Venting Points
The RMLD-FR may be used to scan any structure or place that has gas service.
Some of the common venting points of a house are shown below.
Summary of Contents for RMLD-FR
Page 1: ...Operator s Manual RMLD FR ...
