4 Maintenance
4.1 Turning Off Your PQube 3
Your PQube 3 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 3, remove your PQube
3’s instrument power (either the power screw terminal block on your PQube 3, the optional PM1
Power Supply Module, or PoE).
If you have a UPS module installed, your PQube 3 will continue to run for the allotted amount of
time. To immediately power down the device while on backup power from the UPS module, go to
the Actions screen and press Reboot. With no permanent power source available, your PQube 3 will
simply turn off.
4.2 Replacing Your PQube 3’s Clock Battery
Your PQube 3 uses a user-replaceable, non-rechargeable lithium-
manganese coin cell battery to back up the system clock in the
event of the instrument’s power loss. Powerside recommends
replacing this battery every 10 years. When you order a
replacement battery, always remember to power off the device
first, disconnect mains connections, and verify disconnections.
To remove and replace the battery, insert a small flat-head
screwdriver to pry up the label near the USB port and microSD card
slot. Remove the old battery and install the new one. It is not
possible to install the battery with the wrong polarity.
Follow all applicable federal, state, and local regulations when disposing of the used battery.
Disconnect power to the device before replacing the battery.
Replace battery with a Powerside-supplied battery only. Use of another battery may
present a risk of fire or explosion. This part must be supplied only by Powerside or Powerside agents.
4.3 Life Expectancy of the PQube 3 and the PM1 module
The estimated life expectancy of a PQube 3 and its PM1 module is 10 years (estimation based on
operating temperature at 25º C).
4.4 UPS1 Life Expectancy and Long-Term Storage Instructions
The lithium-ion batteries in your UPS1 module are rated for 4 years or 500 cycles, whichever comes
first. Contact Powerside to replace the batteries. Do not attempt to replace the batteries yourself.
If you need to store your PQube 3 and modules on the shelf for 3 months or longer, remember to
fully charge the batteries in your UPS1 module before placing them in storage. To fully charge the
batteries, turn on your PQube 3 with the UPS1 module plugged in, and let it run for at least 1 day.