CRITERIA
|
THE
VALVEALYZER SYSTEM ® |
INFRARED
SPOT THERMOMETERS |
COLOR-ENHANCED
INFRARED CAMERAS |
SIMPLE ULTRASONICS |
Identifies Leaking Valves |
YES |
YES |
YES |
YES |
Ranks repairs based on system e impact
(in order of heat rate/ output impact)
|
YES |
NO |
NO |
NO |
Maintains unlimited on-board history |
YES |
NO |
NO |
NO |
Maintains unlimited on-board history |
YES |
NO |
NO |
NO |
Identifies trap operating status
(Leaking/stuck open/stuck closed/opening too often) |
YES |
NO |
NO |
NO |
Functions at 40 khz or less |
YES |
N/A |
N/A |
NO |
Functions at greater than 40 khz
|
YES |
N/A |
N/A |
NO |
Accounts for changes in ambient background noise
(may mask noises at <40khz?) |
YES |
N/A |
N/A |
NO |
Detects and measures leak signals
Even in the presence of strong background noise?
|
YES |
N/A |
N/A |
NO |
Requires a well-tuned ear? |
NO |
N/A |
N/A |
YES |
Assumes all hot valves are leaking? |
NO |
YES |
YES |
NO |
Requires full field of view? |
N/A |
NO |
YES |
N/A |
Subject to inaccuracies
Due to self-heating?
|
N/A |
YES |
YES |
N/A |
Comparison to Other Methods