Bacharach Tru Pointe 1100 Owner's Manual
Tru Pointe® 1100
Instruction 0028-9002
10
2.
Reducing the sensitivity will suppress the effect background noise has on the
display, and also in the headset. This will help make the leak sound more identifi -
able.
display, and also in the headset. This will help make the leak sound more identifi -
able.
Sometimes the most interfering background sounds come from areas of high turbulence within
a pipe. This can be where high velocity fl ow changes direction, or is restricted such as within a
partially closed valve. These situations will produce a high frequency hiss which is very similar to
the sound of the leak. Use the methods above for reducing the background noise.
a pipe. This can be where high velocity fl ow changes direction, or is restricted such as within a
partially closed valve. These situations will produce a high frequency hiss which is very similar to
the sound of the leak. Use the methods above for reducing the background noise.
Recording Overall System Noise
Use the Tru Pointe
®
1100 to record sound levels of compressor noise, fan vibration, fan belts,
motors, and even noisy ducts. The overall ultrasonic sound level of a system can be recorded
and compared to previous and current readings. The Tru Pointe
and compared to previous and current readings. The Tru Pointe
®
1100 will only record the ultra-
sonic range of a noisy system. This part of the sound will increase in proportion to the sonic part
and is an indication of the problem.
and is an indication of the problem.
Taking a Baseline Reading
When taking a reading of overall noise level, begin by reducing the sensitivity until the bar graph
reads less than 1/2. This will give you room on the display for future readings.
reads less than 1/2. This will give you room on the display for future readings.
IMPORTANT: The digital circuitry of the Tru Pointe
®
1100 allows for great accuracy and consistency, but
the operator must note the settings to ensure success.
Record the sensitivity, volume, sensor type and the
numeric level reading on the display, as well as the
position from which the reading was taken. This will be
your baseline for future tests.
the operator must note the settings to ensure success.
Record the sensitivity, volume, sensor type and the
numeric level reading on the display, as well as the
position from which the reading was taken. This will be
your baseline for future tests.
Touch Probe Applications
Ultrasound not only travels through air but solid materials as well. The touch probe sensor is
used to detect abnormal system sounds which are internally generated. Such sounds include
abnormal fl ow in piping, valves, and steam traps. Other applications include the detection of
friction or increased wear in bearings, motors and gears.
used to detect abnormal system sounds which are internally generated. Such sounds include
abnormal fl ow in piping, valves, and steam traps. Other applications include the detection of
friction or increased wear in bearings, motors and gears.
Steam Traps
A steam trap is a device which works much like an automatic faucet, opening only at times when
condensed steam (water) has accumulated in the trap. The steam trap then will open to purge
the condensate, while retaining the steam for maximum effi ciency. Common problems arise
when a malfunctioning steam trap fails in either the open or closed position. When this happens
it can often go undetected. Left uncorrected in the closed position, faulty steam traps will cause
problems such as “water hammer”. If failed in the open position, the trap will constantly release
live steam, drastically reducing system effi ciency. These are problems that can be quite costly.
condensed steam (water) has accumulated in the trap. The steam trap then will open to purge
the condensate, while retaining the steam for maximum effi ciency. Common problems arise
when a malfunctioning steam trap fails in either the open or closed position. When this happens
it can often go undetected. Left uncorrected in the closed position, faulty steam traps will cause
problems such as “water hammer”. If failed in the open position, the trap will constantly release
live steam, drastically reducing system effi ciency. These are problems that can be quite costly.