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Installation Page Changes - Firmware 4.0 and newer
Firmware versions 4.0 and newer introduce changes to the Installation page (under Settings -> Installation). These changes directly impact the meter configuration process. This change is in preparation for adding other sensor types which will interface wit...
Voltage registers
Voltage registers are configured in much the same way as power registers (the default register type on the eGauge). To add a voltage register: Firmware 4.0 and newer Navigate to Settings -> Installation Under Registers, click the "Add Register" button Na...
Amperage Registers
The eGauge can be set to record individual CT amperages as separate registers. Unlike power registers, amperage registers are absolute values (they do not change polarity to reflect the directional flow of current). Firmware 4.0 and newer To add amperage reg...
Why does the UI look garbled after a firmware upgrade?
This is typically an issue with web browser caching. Please clear the browser's cache or use the browser's Reload/Refresh button to fix the problem. More information on clearing browser cache is available here. Keep in mind the instructions for your specific b...
I can't connect to my device anymore, what should I do?
Changing the "Hostname" in Settings -> Network Settings will cause remote access to the proxy server to be unavailable (e.g., the meter will no longer be accessible at http://DEVNAME.egaug.es , http://DEVNAME.d.egauge.net or https://DEVNAME.egauge.io) First, ...
How do I clear browser cache and/or stored credentials?
In some instances (including upgrading from a firmware version older than 2.15) the eGauge interface may not load correctly. Should this happen, the first troubleshooting step is clearing browser cache. Browser cache is data stored by the web browser to increa...
What does the message "Error: Failed to save epoch." mean?
When attempting to save settings, the following error message may appear: Rebooting the meter first is recommended, as this usually resolves the issue. The eGauge should also be on the latest firmware, so a firmware upgrade may be necessary. This error mes...
(EG4xxx) How do I change what registers display on my LCD?
The EG4xxx model eGauges have a built-in LCD display. One of the features is that it will "scroll though" and display instantaneous and cumulative values for existing registers. By default, instantaneous and cumulative values for all configured and newly added...
Meter Comparison Chart (difference between Core and Pro meters)
eGauge has 4 current models of meters: Core (EG4015), Core WiFi (EG4215), Pro (EG4030) and Pro WiFi (EG4230). All EG4xxx models have the same integral features. They only differ by the number of CT inputs and communication methods. Comparison Chart ...
Ambient Temp Sensor (ETLW)
Visit the online store page Model: ETLW Requires the eGauge Sensor Hub and eGauge model EG4xxx (Pro or Core), not compatible with older model units. Only use straight-through RJ-11 cables to connect powered sensors to the Sensor Hub. Telephone systems gene...
Temperature Probe Sensor (ETN100)
Visit the online store page Model: ETN100 Requires the eGauge Sensor Hub and eGauge model EG4xxx (Pro or Core), not compatible with older model units. When monitoring input/output temperatures, it is best to purchase multiple probes in the same order for h...
Pulse Sensor (EPS)
Visit the online store page Model: EPS Requires the eGauge Sensor Hub and eGauge model EG4xxx (Pro or Core), not compatible with older model units. Only use straight-through RJ-11 cables to connect powered sensors to the Sensor Hub. Telephone systems gener...
How is power factor calculated?
We calculate power factor off of real power (P) and apparent power (S). Where pf = P/S. Real power is calculated from the product of the Instantaneous Voltage and Current. Apparent power is calculated from the product of the RMS values for Voltage and Current.
AC (RMS) / DC (Mean) / Frequency values
The Channel Checker shows 4 values for each channel input: AC+DC (RMS) Geometric sum of the AC and DC values. May not match the numerical sum of the AC and DC values. AC (RMS) AC-only RMS value of the signal input. DC (Mean) DC-only value of t...
AIC or short-circuit rating
AIC (ampere interrupting capacity) is the maximum short-circuit current that a circuit breaker can safely interrupt. The eGauge is not a circuit so it does not have an AIC rating. Socket-meters (or any type of in-line meter) will have a maximum current t...
Power Factor
Although the eGauge uses power factor to calculate real power, the power factor values are not stored in the database by default. However, it is possible to create a register to track the power factor of either a single CT/phase pairing or aggregate registers ...
Power Register Subtypes
By default, the eGauge will record Power registers as the "Net" (=) subtype. This means the register will record power flow in both directions. Positive readings will be graphed as a green line, and negative readings as a red line. However, it is possible to ...
THD Registers
THD is a measurement of the harmonic distortion of a signal given it's fundamental frequency, and thus may be larger than 100%. If there is insufficient amperage on a CT or the circuit is not active, the noise may calculate to high percentages. THD is typical...
Connection Quality
The eGauge can record network connection quality as a percentage value (0..100). This information is displayed on the Status page (http://DEVNAME.egaug.es/status.html where DEVNAME is the device name of your eGauge meter) under "Connection Quality" by default,...
Net import/export registers on line side tap system
On a backfed PV installation (that is, an installation where excess solar production is fed back through a breaker on the main distribution panel to the utility) it is relatively easy to see the net import and export of power. The CTs installed on the main uti...