Bacharach Tru Pointe 2100, Руководство по эксплуатации и обслуживанию

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Tru Pointe® 2100 Instruction 0028-9003
of condensate coming into trap as well. There are times when this is bene fi cial, and times when
there is so much background noise that the Low setting may not be effective.
The sound of most bearings comes alive in the Low range probe, however, very high speeds and/
or vibration sometimes make it necessary to use the High frequency probe. Your experiences
with your equipment will determine which is the best setting for you.
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 ef
fi 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 ef
fi ciency. These are problems that can be quite costly.
NOTE: It is fairly common for large manufacturing and
processing plants to spend tens of thousands of dollars
on steam system conservation programs (equipment
and personnel) designed to locate and repair failing
steam traps. Ultrasonic detectors play an important role
in these programs.
To test steam traps you will use the touch probe sensor. Press the “MODE” button until the
display reads the desired probe mode, then press
▲ and ▼ to activate the touch probe sensor.
Making a fi rm contact, touch the end of the probe to the steam trap being tested. Apply just
enough pressure to make a good contact, but do not push too hard. You will hear a clear transla-
tion of the internally generated ultrasonic sound. If the trap sounds appear to be masked by other
system sounds, reduce the sensitivity, and touch just upstream and downstream from the trap to
verify that what you hear is only the steam trap being tested.
A properly functioning steam trap will have a distinct on and off fl ow cycle which is easy to
interpret with the Tru Pointe
®
2100. A strong rushing sound indicates that the trap is purging.
You may want to listen to the sound of a good trap before trying to make important decisions
on the condition of others. Knowing what a healthy trap sounds like will be a great advantage.
There are many different types of steam traps. A “sputtering” sound may be quite normal for one
type and not another. To detect the
fl ow of condensate in pipe, switch to “PrbS”. Switching to
“PrbS” allows you to hear sonic (audible) sounds, and is used as a mechanical stethoscope.
Thermal Expansion Valves (TXV)
The Tru Pointe ® 2100 can be used to test a TXV, check valve, ball, needle, gate… any type of
valve which may be leaking internally.
Any fl uid or gas passing from the upstream side (high pressure) to the downstream side (low
pressure) through a poorly seated valve will generate ultrasound, and clearly be heard using the
Tru Pointe
® 2100.
This test method is very similar to that of steam traps. Use the touch probe to test around the
perimeter of the valve housing. The sound will be loudest at the point of the leak (the area where
the gate, ball, needle, etc. seats into place to stop the
fl ow. Use the sensitivity or frequency