Robinair 16455 TruTrack Ultrasonic Leak Detector - Manual (Page 6)

4
Operation of Unit
Operating the TruTrack Ultrasonic Leak Detector
1. Plug the headphones into the jack located on the right side of the
instrument.
2. Slide the sensitivity adjustment all the way forward toward the
sensor. The instrument is now set at full sensitivity.
3. Press and hold the ON/OFF button to turn on the instrument. The
button requires minimal pressure.
NOTE: You can use your left thumb to hold this button and your left
index finger to adjust the sensitivity level. Always start at full sensitivity.
Gradually reduce the sensitivity to reduce the effect of background noise,
if necessary.
4. Hold the instrument as close to the suspected area as possible.
Check around the fittings and piping using a zigzag motion. Cover
all suspected areas.
5. Watch the LED window. If a leak is detected, an increase displays
in this window. You also hear a rushing sound coming through
the headphones. The sound becomes more intense, and the meter
reading increases as the instrument is placed closer to the leak.
NOTE: If there is noise in the area and the display is at its full sensitivity,
reduce the degree of sensitivity until the lights disappear. The display
reading is only for relative measurements.
Observing two lights instead of ten can mean two things:
(1) Either you are too far from a suspected leak or (2) the leak is smaller
than the one that produces ten lights. Use the sound intensity you hear
in the headset and the varying number of lights to guide you toward the
leak point. Reduce the sensitivity as you approach to verify you are on
the right path.