Amprobe TMULD-300 ULD-300 Ultrasonic-Leak-Detectors - Manual (Page 7)

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As you get nearer to the source of the leak, the LeD’s in the vertical bar will light up. The LeD 6.
bar is a relative measurement only. when the LeD display panel reaches 10 lights, you are at
the maximum reading of the range setting. Reduce the sensitivity by turning the thumb wheel
counterclockwise or select a less sensitive range.
Repeat until you have isolated the leak source. Lowering the sensitivity level will verify
7.
that you have isolated the true source, of the leak and not a reflection of the true source.
generally, ultrasonic sound reflections are not as strong as the true sound source.
UT-300 Ultrasonic Transmitter Operation (Shipped in TMULD-300 product)
The UT-300 transmitter can supply ultrasonic signals for locations where the gas/air leak does
not have sufficient pressure to create an ultrasonic sound. This transmitter will allow the
ultrasonic detection of cracks and openings.
Move the on/off switch to on. The poweR LeD will come on. 1.
Select the output signal level with the mode switch. 2.
Switch unit off when done testing. 3.
MAINTENANCE AND REPAIR
if there appears to be a malfunction during the operation of the ULD-300, the following steps
should be performed in order to isolate the cause of the problem.
ULD-300
Check the battery. Replace the battery immediately when the red LeD is on. 1.
Review the operating instructions for possible mistakes in operating procedure. 2.
UT-300
Check the battery. Replace the battery immediately if the red LeD is not on. 1.
Review the operating instructions for possible mistakes in operating procedure. 2.
except for the replacement of the battery, repair of the meter should be performed only by a
factory Authorized Service Center or by other qualified instrument service personnel. The front
panel and case can be cleaned with a mild solution of detergent and water. Apply sparingly
with a soft cloth and allow to dry completely before using. Do not use aromatic hydrocarbons or
chlorinated solvents for cleaning.
Battery Replacement ULD-300, UT-300
Turn off the meter and unlatch the battery cover. Replace the battery with a neDA type 1604 1.
or equivalent 9V alkaline battery. Replace the cover.
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Note: the negative terminal of the battery should go to the top of the unit.
Remove battery when the instrument is not used for extended period. 2.
SPECIfICATIONS
ULD-300 Ultrasonic Leak Detector
operating Temperature: 0ºC to 38ºC (32ºf to 100ºf)
Storage Temperature:
-40ºC to 66ºC (-40ºf to 150ºf)
weight: 180 grams (6.3 ounces) with Battery
Dimensions: 185.4 x 63.5 x 25.4 mm (7.3 x 2.5 x 1 in.)
frequency Response: 35 khz to 45 khz + 6 db
power Consumption: 22 mA at 9 Volts DC
Battery Life: 33 hours with 9 Volt Alkaline Battery (neDA 1604A, ieC 6LR61)
performance: Meets the ASTM Standard: ASTM e1211-07