Metrohm Vision – Diagnostics - Manual (Page 47)

▪▪▪▪▪▪▪ 45
Insert this diskette into the A: drive, select that drive
in the dialog box, and click on the RSS1xxxx.da file
as shown. (The serial number will be different, of
course.) Click “Open”.
The standard file is “NSAS File” format (*.da), which
refers to an older software package. This format is
used where it aids in file transfer.
Vision displays the wavelength regions for the test.
For Number of Replicates, retain the default setting
of 1, unless using the SmartProbe, in which case 4
replicates should be used, with a 90-degree rotation
of the standard between replicates.
Click on “OK”.
Vision will begin to take an instrument reference
scan, if the instrument is operating in Reference
Standardized mode. The red progress bar at the
bottom of the screen indicates status. If operating in
Reference Standardized mode, Vision requests the
99% standard from the set. If not operating in
Reference Standardized mode, Vision requests the
80% standard, which is used in place of the internal
instrument reference.
Select the requested standard from the set. Labels
on the back identify each standard. Note the
diskette that contains the “Standards File”. This file
is used only during IPV Setup.
When finished with IPV Setup, the user can now use
the Photometric Test for regular verification of
photometric response.
The System manager should establish a schedule of regular Photometric Testing based upon
instrument usage. The generally accepted interval for heavy users is 1-2 times per week, or less often
for infrequent usage.