A L P H A T E C H N I C S P R E C I S I O N T E M P E R AT U R E
4 6 0 0 S E R I E S T H E R M O M E T E R
A L P H A T E C H N I C S P R E C I S I O N T E M P E R AT U R E
4 6 0 0 S E R I E S T H E R M O M E T E R
About...
ALPHA TECHNICS PRECISION
TEMPERATURE
Founded in 1968, Alpha Technics Precision
Temperature has become a recognized leader
in the precision hand-held thermometer
field. For many years we have designed and
manufactured, in high volume, precision
temperature products for specialized O.E.M.
customers who need thermometers with
high accuracy, durability, dependability, and
affordability. With this experience, we are now
able to bring high accuracy thermometers to
the commercial marketplace.
The Model 4440 and 4600 thermometers,
and other products, are the result of
technological breakthroughs, years of design
and manufacturing experience, and good
old fashion hard work. We pride ourselves
on our research and development programs.
These on-going experiments and programs
allow us to internally generate the cutting
edge technology and processes which makes
precision hand-held thermometry possible.
When you need a cost-effective source for
high-quality products, talk with us and find
out how we can assist in your success. Our
award-winning engineering and production
teams are here to help with your specialized
needs.
ACCURACY: The degree of absolute conformity to a
standard.
NIST: National Institute of Standards and Technology
PRECISION: The accuracy with which a number
can be represented; sharply defined; conforming to
a pattern; tolerance
REPEATABILITY: The ability of a probe or instrument to
give the same output or reading under repeated identical
conditions.
RESOLUTION: The least significant digits shown
on a digital display.
RS-232: A standard computer interface protocol.
SE N S OR SE L F- H E ATI N G : The i n ter nal h e at
generated in the sensor by passing a current through the
sensor to measure its resistance.
TEMPERATURE STANDARD: An instrument who’s
calibration is directly traceable to the NIST.
STABILITY: The ability of a device to maintain a
constant output with the application of a constant input.
SYSTEM ACCURACY: The total accuracy of the probe plus
the accuracy of the thermometer.
SYSTEM CALIBRATION: Calibration of a thermometer
and probe combination.
THERMISTOR: A temperature sensing element composed
of semiconductor material whose resistance varies greatly,
in a known manner, with the change of temperature. (The
4600 uses negative temperature coefficient thermistors - as
temperature increases, resistance decreases).
P/N 139225 REV. A
- G L O S S A R Y -
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Model 4600 Manual-3.5x8.5-rev.indd, Spread 2 of 16 - Pages (2, 31) 1/11/2007 2:03 PM
(64 paginas)
(4 paginas)
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