Heath Consultants HPN105354, Руководство оператора

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Doc No. 105408 Rev C, RMLD-CS Operator Manual
RMLD-CS Operator’s Manual
Manual
© 2021 Heath Consultants Incorporated. All rights
reserved.
57
contact with the ground creating dark zones (shadow).
When scanning the meter, keep the following considerations in mind:
•
Maintain at least 10 feet from the meter so the beam width is not too small.
•
Thoroughly scan the ground around the meter.
•
Use the best angle to the meter that provides a good background behind the meter.
•
If the meter is out in the open, or the angle is limited such that there is no background right
behind the meter; scan the meter in a horizontal
“Z” pattern maintaining a constant distance
as you sweep across.
If a leak is located near or on the meter, these tips help to determine if the leak is underground or on the
meter:
•
Try to keep the wind to your back.
•
Stand about 5 to 10 feet from the meter. Use the Real Time (Geiger) audio mode to help pick
out the strongest return.
•
Start out aiming low on the ground.
•
Work the beam up and around the piping (Note: The spotter laser is about 1.25” to the right
of the IR laser beam).
If in doubt and if the leak is underground, bar hole the area.
Scanning during inclement weather, these types of conditions reduce the venting of the gas through the
soil and the atmosphere. It is crucial to understand how inclement weather can affect a leak survey,
corrective actions and/or postponement options. Scanning must be methodical and at a slower rate.
•
This instrument can be a backup tool for the First Responder to assist with leaks that are difficult to
locate and/or isolate.
•
When raining, do not point instrument straight up into the air. Water entering the Laser port can
damage the instrument. The RMLD instrument is water resistant not waterproof.
•
The technician can inspect roof top vents, the sewer vent, through most windows, around the
foundation, door frames, and building vents.
•
Standing water are poor backgrounds and often give low light indications. You could pick up gas
indications by raising the laser above the water and scanning the atmosphere with a better
background.
Use of the RMLD in inclement weather should be addressed in your company’s O&M Manual .