Full Verification; Required Equipment For All Tests; Warmup Procedure For All Verification Tests - Fluke 5730A Calibration Manual

Full Verification

Verification is the process of evaluating the data taken during the process of
calibration and evaluating whether the data is within the published specifications
for the Product. An independent external verification is recommended every 2
years, before and after normal periodic adjustment or repair of the Product.
Verification establishes and maintains parallel external traceability paths for the
internal functions that are not adjusted or corrected during artifact calibration. An
example is the internal ac/dc transfer standard. Verification also serves as a
check that internal calibration processes are in control.
All performance limits specified in the test records apply to 90-day
specifications for the Product at a 99% level of confidence. If limits to
other specifications are desired, the test records must be modified. A
description of how to determine a guardband test limits is included in
this section.
Equivalent equipment and methods, either manual or automated,
may be substituted for the verification tests as long as the same
points are tested, and equipment and standards used are at least as
accurate as those specified. If standards are less accurate than
specified, appropriate tolerance limit and/or accuracy reductions
must be made to achieve equivalent results.

Required Equipment for All Tests

An abbreviated summary of required equipment for all the verification tests is
given in Table 3. Individual lists of required equipment are included at the
beginning of each test.

Warmup Procedure for All Verification Tests

Before verification:
1. Verify that the Product has warmed up for at least 30 minutes.
If the Product has been powered off in an environment outside of
operating environment specifications, particularly with humidity
above 70 %, allow a minimum of 2 hours warm-up. Extended
storage at high temperatures and humidity may require up to 4
days of power-on stabilization.
2. If a regularly scheduled full verification as recommended by Fluke Calibration
is being done, calibrate the Product as described in the Calibration Procedure
section before you continue with verification.
3. Ensure that each piece of external test equipment has satisfied its specified
warm-up requirements.
4. Ensure that the Product is in standby (STANDBY annunciator lit).
Notes
Note
Multifunction Calibrator
Full Verification
47