Welch Allyn Spot Vital Signs 4400, Service Manual

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Functional verification and calibration
overview
Functional verification tests
The functional verification tests help to confirm the proper operation of the device and its options.
The tests may also be useful as a diagnostic tool to help isolate a malfunction. It is not necessary to
disassemble the device to perform these tests.
For periodic service, you can—at a minimum—perform the basic functional verification tests
described in this manual. If you have the Gold edition of the service tool, you have the additional
capabillity to perform a complete functional verification and calibration of the device, but this is not
required for minimal periodic service.
In contrast, any time you open the device case, you must use the service tool, Gold edition, to
perform a complete functional verification and calibration of the device before returning the device
to service.
NOTE
For instructions on using the Gold edition, see the service tool help files.
About the Welch Allyn Service Tool
The service tool is required to complete functional verification and calibration tests. The service tool
is available in the following editions:
•
Standard unlicensed edition
: Enables NIBP functional verification tests to satisfy the
recommended annual service. If any Standard unlicensed edition testing shows an out-of-
specification result, use the Gold edition to perform a full calibration.
•
Gold edition
: Checks the functionality and calibration of the device. As it checks the device,
the Gold edition also performs any needed calibration to bring the device within
specifications. This full suite of tests is required to complete a repair. Each time you open the
case, you must use the Gold edition to test the device before returning the device to normal
use.
For information about the service tool, see the following:
•
For instructions on installing and using the service tool, see the Welch Allyn Service Tool
Installation and Configuration Guide.
• To use the Standard unlicensed edition to test the NIBP module, follow the instructions in this
service manual.
• For instructions on using the Gold edition, see the service tool help files.
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