Features
to Consider
Choosing
the right tool is dependent on need and budget.
Never compromise quality for price and be sure
to do your homework with the following suggestions:
schedule a live demonstration with a manufacturer's
representative, visit trade-shows, call references,
rent or borrow equipment for trial, purchase with a
risk-free refund clause. Finally, choose the tool with the features that are right for
your applications, and with the ability to expand. Companies at the forefront of the technology revolution are
producing single platform hardware.
You purchase that platform and have access to
all the features and functionality without having to
pay for them until you need them.
For instance, you can purchase a simple basic
system that can be upgraded at any time to a premium
system simply by purchase a software key that unlocks
additional applications. At
the same time, any system enhancements that are made
after your purchase can be added over the Internet
with a simple program (usually covered by warranty). Avoid
suppliers with 5 or 6 models that do the same thing.
In the end, you are stuck with what you bought
with no chance to upgrade without doubling your
initial capital expense.
In
the world of ultrasound detectors look for equipment
that provides a digital readout on a known measurement
reference scale.
The input signal should be processed digitally
and the use of True RMS Averaging is a must to ensure
stable linearization.
An internal memory of no fewer than 1000 points
is standard. Premium
models offer multiple route storage and software that
allows for individual route customization and two way
uploading of data.
The
unit must be lightweight and feature one-hand
operation. All
the buttons should be accessible by the fingers that
hold the unit (the other hand must be free to hold
accessory sensors such as the flexible airborne
sensor, contact probe, and parabolic dish).
The plant environment is a rugged one and
requires a robust detector that will withstand abuse.
Aluminum is an excellent housing material that
is strong and lightweight.
Look for rubberized covers to add extra shock
protection.
Sensors
must connect with rigidity to avoid damage.
The airborne sensor is normally internal to the
unit and hardwired.
It should also be protected with aluminum to
avoid shock. Avoid
interchangeable modules.
It is common for the pins to snap off inside
the detector leaving an expensive repair bill.
Your
vendor is as important as the equipment he sells.
Look for equipment that can be serviced locally
(without having to deal with international customs).
How long has he been in business and how good
is his warranty? This may be the time to call on some
references.
For
more information about specialized diagnostic
technologies, contact:
Mr.
Allan
Rienstra
SDT
North America
Toll Free (800) 667-5325
Click
here for more ultrasonic resources
|
