2
INSTALLATION
EG4xxx Owner’s Manual
The backup is designed only to cover relatively short power outages. The Super
Capacitor takes about 5 minutes to fully charge, and will keep correct time for
approximately 8 hours without power.
When power is restored after such an event, the eGauge will attempt to restore
proper time via the NTP server. If unavailable, and the Super Capacitor is de-
pleted, the device will fall back to using the time that was in effect when the last
data item was recorded prior to the power failure. The proper time must then be
restored later on, either manually via the device’s
Settings
→
Date & Time
page
or by provisioning an NTP server that is accessible.
2.8
Wiring Diagram
2.8.1
Typical Residential (Split-Phase) Installation
Figure 8 is a schematic wiring diagram showing a typical split-phase installation
where the eGauge is used to measure the amount of power being supplied by the
power utility (CTs 1–2) and the power supplied by a single-phase solar inverter
(CT 3). For simplicity, circuit-breakers are not shown.
Figure 8: Wiring Diagram for a Typical Split-Phase Installation
11
April 6, 2022