ATWL Automatic Test Weight Lifter
for Cable Suspension Scale
 More and more weigh feeders are being used in conjunction
with statistical process control where performance records
are routinely generated and delivered with the product as
required by a customer's quality assurance program. Such a
record should contain a "validation of scale calibration step
to be truly meaningful as a quality assurance tool. Thayer's
automatic test weight mechanism provides a means for automatically
applying a known test weight and going through
a calibration sequence on computer or push-button demand
to check scale calibration. A "foolproof self-checking software
algorithm in the feeder control instrumentation prevents
erroneous calibration.
CALIBRATION is fast, accurate and reliable
The Thayer Scale test weight calibration method has proven accurate and reliable over decades of in-plant use. Unlike
material sampling, it is always clean, fast and safe. Unlike electronic signal stimulation scale loading, it actually tests the
performance of critical electro-mechanical components. The Thayer Automated Test Weight Placement Assembly now
makes calibration even easier and more exact:
Thayer ATWL Features
- Auto Zero Calibration.
- Auto span calibration with test load.
- Auto calibration and zero and span.
- Auto adjustment of zero and span errors.
- History of past calibration results stored in instrument for trending and determination of required calibration interval.
Thayer ATWL Benefits
- Minimal downtime for calibration checks.
- When automatic calibration check is carried out via a remote computer or PC, human intervention is not required.
- Eliminates operator error and institutionalizes calibration checks at regular time intervals for compliance with QA
programs.
- Eliminates risk of operator injury from lifting and placing test weights.
- Mechanically exercises scale. Actually verifies load cell operation, unlike an electronic shunt calibration.
THAYER CABLE SCALE ATWL
THAYER AUTOMATIC TEST WEIGHT LIFTER CALCULATIONS
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