Using The Uld-400-T Ultrasonic Leak Detector Transmitter - Amprobe ULD-400 Serie Manual De Usuario

4. MAIN APPLICATIONS

4.2 Using the ULD-400-T Ultrasonic Leak Detector Transmitter

The Transmitter allows for ultrasonic detection of openings in locations where there is no gas or
air pressure, or the pressure is not sufficient to detect the leak with the Receiver alone.
Typical applications include verifying tightness or pinpointing places of air, water or gas
leaks in:
• Fluid or gas tanks
• Building windows, doors or roofs
• Car windows and windshields
• HVAC vents
• Refrigerant pipelines
The process involves placing the Transmitter inside an object (such as tank, house or a car),
sealing the entryways and scanning the object from the outside with the Receiver to verify
tightness and pinpoint potential leaks.
1. Turn on the Transmitter.
2. Select the output signal level using the "+" or "-" signal level adjustment buttons.
Note: High setting is the default setting. For most applications and specifically for large
objects this setting is particularly useful. The High signal may cause the Receiver to read
maximum value away from the place of the leak even when lowest sensitivity was
selected. Press "-" once to get to Medium signal and press "-" again to get to Low signal
strength. Adjust signal level to allow for more precise pinpointing of the leaks.
3. Place the Transmitter inside the object to be verified and make sure entryways are sealed.
4. Preform leak detecting with the Receiver as described in section 4.1.
Figure 4.2: Using the Transmitter and Receiver to find a leak
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