DH Instruments ADCS-601-AF, Руководство по эксплуатации и обслуживанию

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ADCS-601-AF™ OPERATION AND MAINTENANCE MANUAL
© 2005 - 2007 DH Instruments, a Fluke Company Page 148
SYSTEM PROCEDURE DESCRIPTION FREQUENCY SEE
SECTION
FPG8601 Calibration of
linearity
verification mass
set
Determine and, if necessary, adjust
the mass values of the mass set Yearly until decreased frequency justified
by experience.
Recommended end of first and second
years, then every three years if no
significant changes observed.
None
FPG8601 Calibrate and/or
repair
Calibration and/or repair by DHI or an
Authorized Service Provider of the
FPG8601 instrument. Indefinite, failure of an FPG8601
component, failure of validation by
PG7601. None
7.3.2 PG7601, CALIBRATION OF PISTON-CYLINDER MODULE
7.3.2.1 PREPARING FOR CALIBRATION
Piston gauge piston-cylinder modules are often calibrated in a facility other than
that in which the ADCS-601-AF system is used.
If the calibration facility has PG7601 platform and mass set, it may only be
necessary to ship the PG7601 10 kPa/kg piston-cylinder module for calibration.
If not, the piston-cylinder module, PG7601 platform and perhaps masses have to
be shipped.
To ship the piston-cylinder module it must be removed from the PG7601
platform. See Section 6.3.2 for instructions on removing the piston-cylinder
module from the platform and packing it in its bullet case.
If the complete PG7601 system must be shipped, use the unpacking information in
Section 3.1 to pack it.
7.3.2.2 UPDATING PISTON-CYLINDER CALIBRATION
INFORMATION
Piston-cylinder module information is element specific metrological data.
Uninformed or accidental altering of this information may lead to out of
tolerance measurements. Piston-cylinder module information should only be
edited by qualified personnel as part of the ADCS-601-AF calibration or
recalibration process.
When a piston-cylinder is recalibrated, the results are given in a calibration report.
The calibration report specifies the piston-cylinder effective area and the piston
assembly mass determined by the calibration facility. These values may change
from calibration to calibration and the new values must be entered into the
ADCS-601-AF system so that they are used in its pressure calculations. The
characteristics of a piston-cylinder include many other values but these are
constant over time. For additional information on PG7601 piston-cylinder
characteristics and how they are stored in the PG7601 platform, see the PG7000
Operation and Maintenance Manual.
ADCS Tools has the capability to view or edit the value of the PG7601 10 kPa/kg
piston-cylinder’s effective area and mass. Use
[Maintenance] , [Calibration] .
(see Figure 63). The piston calibration data is displayed and edited on the
[Piston-Cylinder Module] tab. The piston-cylinder shown is always the ADCS-
601-AF PG7601’s active piston-cylinder. Check that the correct piston-cylinder
module is shown by verifying its serial number against the serial number shown
in the panel label. To change the active piston-cylinder use
[Setup] ,
[Configuration] , [PG] .