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Q:
“What about interferences?”
A:
The only known interferences are from ammonium hydroxide, ethanol,
methanol and acetone. Samples containing these and similar chemicals should
never be used. Additionally, never use these substances as cleaning agents in or on
the Computrac
®
VAPOR PRO
®
Rx
. Use isopropyl alcohol for cleaning instead.
Q:
“Why do my tests sometimes end in less than 2 minutes?”
A:
This is usually caused by an inappropriately large rate ending criterion value or small
sample size. When using the rate-ending criterion, you entered a rate value to end the test.
If the sample moisture is very low, or the sample is too small, the peak rate may never
exceed the ending rate and the instrument concludes that the test is over. To rectify this,
use a larger sample, or a lower ending rate value. See
“Selecting How to End the Test”
beginning on page 22.
Q:
“How do I transfer stored data to a computer file?”
A:
This is not available in 21 CFR, Part 11 compliant instruments. To store archival
information from non-compliant instruments to a computer text file:
•
Set up the instrument to print to the RS-232 port. (Setup Menu, External Printer
Setup).
•
Go to Setup Menu, Report Setup, Report Control and select text output.
•
Set up the computer to receive text information into its serial port at 9600 baud, no
parity, 8 data bits and 1 stop bit (9600,N,8,1). Windows
®
Terminal or Windows
®
HyperTerminal are good choices for this purpose. Consult the documentation for
your communications program for details on how to save input data to a file.
•
Go to the menu showing the print features and select print.
Memory Start Menu - Print Memory Starts
Calibration Menu - Print Cal Reports
Diagnostic Menu - Print Exception Report
Q:
“How do I print to a printer?”
A:
To print test results or stored data:
•
Connect the printer to the parallel port on the back of the instrument. Use the
accessory printer from AZI, or a standard PC graphics printer and cable.
•
Make sure the printer is supplied with paper, the printer power is on, and the printer is
on-line.
•
Go to Setup Menu, and External Printer Setup. Select the Printer Type and LPT port.
NOTE: Use EPSON RASTER for the Epson
®
C88+ printer.
NOTE: Use SEIKO DPU for the Seiko
®
DPU-414 Mini printer (Y990-0120).
•
Go to Setup Menu, Report Setup, and Report Control. Select text output.
•
Go to the screen showing Print and select the report to be printed.
