PQube User Manual 2.1
Page 65 of 113
you may need to enable FTP keep-alive on your client (your PQube will disconnect
automatically after 5 minutes of inactivity, turn on keep-alive to prevent this)
ask your system administrator if there are firewalls or other protection systems in place
that might affect your ability to connect to your PQube via FTP.
In order to access your PQubes FTP server, you will need the IP address of your PQube.
Maintenance
Upgrading Your PQube’s Firmware
Power Standards Lab offers free firmware updates to add new features to your PQube and to fix
bugs. You can check www.PQube.com from time to time to see if there is a new version of
firmware available. Every firmware upgrade comes with a guide with detailed instructions on how
to perform the update.
Turning Off Your PQube
Your PQube is designed to be a permanently installed monitor. It does not have an on/off switch
because it is designed to run continuously. If you need to turn off your PQube, turn off your
PQube’s instrument power (either the power screw terminals on your PQube, the optional PS1
Power Supply Module, or both), once your PQube is running from battery, reset your PQube by
removing and re-inserting your PQube’s SD card. This will cause your PQube to reset and power
down (as there is no power available). If your PQube resets and begins to start up again, you have
not removed all instrument power.
Replacing your PQube’s battery
The battery is PSL type “340-000080” followed by a 2-digit revision
level. This part must be supplied only by the PSL or PSL agents. It
contains built-in protection.
PSL recommends replacing your PQube’s battery after 5 years, or
1000 uses, whichever comes first. You can find the battery
installation date and the number of times the battery has been used
on your PQube’s battery status screen, in the Meters menu.
To replace the battery, use a small flat-blade screwdriver to open the battery compartment. Pull on
the tab to slide the battery out, then slide in the new battery in the correct orientation. Seat the
new battery gently, then close the battery compartment. Go to the battery status screen, and hold
down the Select button for 3 seconds – this will reset the installation date and the battery use
counter.
It is not necessary to remove power while replacing the battery. Follow local regulations when
disposing of the used battery.
Cleaning Instructions
If necessary, wipe the accessible parts of your PQube with a cloth, slightly moistened with clear
water. Do not use abrasives or chemical cleaners.
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