Utility Program
Purpose
This service tool is used for configuring the timer/counter,
whenever information stored in firmware about serial number
and oscillator type etc. has been lost, for example after re
-
placement of the main PCB. It is also used for defining a new
factory calibration.
Availability and System Requirements
The utility program can be obtained from the manufacturer or
your local service organization free of char ge and can be run
on any PC with Windows 2K or XP equipped with a GPIB in
-
terface from National Instruments. It is distributed as a com
-
pressed file called PM6690.zip containing all the necessary
installation and data files including a readme.txt file with ad
-
ditional information.
Installation
–
Unpack the zip file in an empty directory by using
Winzip.
–
Delete the original zip file if you want to save memory
space.
– Run the setup.exe program and follow the on-screen in-
structions.
Running the Application
After installation you can start the utility application by run-
ning the program PM6690 Utility.exe from the chosen direc-
tory. Refer to the readme.txt file for closer information on top-
ics not covered by the application user interface.
Fan Replacement
This instrument is equipped with a speed-controlled fan as
standard to sustain the specified operating temperature range.
If your instrument is operating in a 24 h/day system, you
should replace the fan every second year to maintain maxi
-
mum reliability. For part-time applications and where low am
-
bient temperatures prevail, an extended service interval is ac
-
ceptable.
Follow the instructions on page 3-3 to replace the fan.
Other Important Information
There are no batteries of any kind in this instrument, so in gen
-
eral it is only necessary to remove the cover when the fan is to
be replaced, or when a real fault calls for traditional trouble
-
shooting.
Utility Program 5-3
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