PQube 3 Installation Manual
Manual#: 851-000135
Version 3.4 – 08/11/2022 Page 26 of 47
2.2.7 Connect Mains AC Voltage Wires
The large high-voltage terminal block on the back of your PQube 3 is removable. Refer to the wiring
diagrams and use the appropriate wiring scheme for your power configuration.
IMPORTANT: Don’t forget to install the Earth conductor. Your PQube 3 relies on the Earth conductor
for safety, reliability, and accuracy.
You must apply at least 30 Vac to these terminals before your PQube 3 will begin recording.
2.2.8 Protect antenna terminals from lightning
If you install an antenna in an outdoor location where it may be exposed to lightning, you must
include a properly installed UL-497C-listed lightning protection device on the antenna cable and the
antenna must be reliably earthed. Follow all local installation safety requirements and regulations.
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