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PQube 3 Instruction Manual
Page 68 of 103
5.8
Maintenance
5.8.1
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). Your PQube 3 will automatically initiate graceful shutdown to
prevent any write damage to flash.
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.
5.8.2
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 instrument power loss. PSL 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 PSL-supplied battery only. Use of another battery may present a
risk of fire or explosion. This part must be supplied only by PSL or PSL agents.
5.8.3
Life Expectancy of the PQube 3 and the PM1 module
The estimated life expectancy of a PQube 3 and its PM1 module is 8 years (estimation based on
operating temperature at 20-30degC).
5.8.4
UPS1 Life Expectancy and Long Term Storage Instructions
The lithium ion batteries in your UPS1 module are rated for 3 years or 500 cycles, whichever comes
first. Contact PSL 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, all you need to
do is charge your UPS1 module up to full before putting it away. Simply turn on your PQube 3 with
the UPS1 module, and let it run for at least 20 hours to ensure a full charge.
If you will be storing your PQube 3 and modules for more than 1 year, be sure to periodically
recharge your UPS1 module at least once per year to avoid full discharge.
Shop for Power Metering products online at:
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.ca