|Internet Enabled Energy Meter Specifications:
Our Web Enabled Meter is a
revenue grade C12.20 compliant meter (0.2% higher accuracy) that integrates
highly accurate electric metering and measurement and a sophisticated network
module which enables an Internet based advanced metering solution. Our IP
enabled electric meter uses the latest technology to deliver unrivaled
benefits. Our meters are calibrated using the RFL 5800 which is certified to
NIST standards and is calibrated periodically to ensure the highest accuracy of
our meters. Our web enabled meter is also UL Listed for both USA and Canada.
The WEM-MX (-5A and -333mV) comply with US FCC regulations and has also passed the European EMC
testing and certification and is ROHS compliant.
TÜV Rheinland of North America, a world leader in compliance testing and
certification has independently validated that the WEM-MX meter complies with
the advanced requirements of ANSI C12.20 Class 0.2 (0.2% accuracy) and Watt Hour
This smart electric meter has been designed to work over any Internet, LAN or
WAN connection. Using any Internet browser, users have instant access to the
advanced features of this IP electric meter through its built-in web server.
Any ethernet connection will work with the electric meter. Network firewall
restrictions that too often limit Internet devices are easily overcome using
the email, FTP, or Web Service built into
the electric meter's software. Sometimes providing a dedicated external IP
address is not possible. This may prevent access to its web server from outside
the local network. In such a case, the IP electric meter can be setup to
periodically send email reports and/or update load profile data to any FTP
server or via Web Services. Communicating with multiple IP electric meters is
as simple as connecting them to a TCP/IP network.
Download meter specification (pdf) WEM-MX
|Revenue grade energy meter is accurate to within 0.2%
|Our goal at Energy Tracking is to facilitate open access to meter data without
the need for proprietary protocols.
|Ready for Future Enhancements
|This advanced electric meter’s firmware can be upgraded to implement new
advanced electric meter incorporates all of the power measurements one would
expect in an advanced solid state energy meter.
This versatile four quadrant electric meter measures phase voltage, amps,
frequency, true power, reactive power, apparent power and power factor. In
addition, peak demand and summation data supports typical time-of-use tariff.
The WEM-MX 5A meter model accepts external CT's with a 5 Amp secondary. The WEM-MX-333mV meter model
accepts 333mV secondary CT's. Note: Voltage ratings are
|120 to 600VAC
|47Hz to 63Hz
|0-5A / (333mV option)
|±0.2% at unity power factor
|±0.5% at 0.5 power factor
|-25 °C to 60 ° C
|(Consult factory for -40° C to 85° C.)
|(Delivered & Received)
|Email SMTP Client
|Ethernet 10/100 Base T
|Day Time Client
|Load profile intervals can be setup to record energy consumption
from every 1 minute to 60 minutes. This feature can be disabled if not
|Emails can be dispatched at the end of every load profile interval
or periodically over hours. In addition, the meter can be setup to send a
report monthly, weekly or daily on energy consumption and demand data. Each
mail includes a report of the current demand, voltage, amps and power factor by
|The FTP module operates similar to the email module and is
designed to provide load profile data with a summary of current consumption and
demand data. Each FTP file includes a report of the current demand, voltage,
amps and power factor by phase.
|Energy consumption, demand and load profile data can be accessed
directly using the on board web server. The web server also allows you to
configure mail, FTP, CT / PT ratios, Meter ID details, etc.
|The meter can be setup to automatically acquire a leased IP address
from a DHCP server or be set to a fixed IP address.
|The meter will automatically acquire the latest time from any SNTP
server. Default SNTP severs are provided but the user has the option to change
them. This setup is done via the web server. The SNTP server can be an Internet
or local SNTP server.
|The meter has a FTP server which is used to update new firmware
released by Energy Tracking.
|The meter has the ability to report data directly using
Web Service over HTTP.
|You can poll the meter directly using the ModBus protocol over HTTP.
External Power Supply. Input 100 to 240 VAC. Output 9VDC. Supply current 300
Backup Power Supply
Rechargeable Lithium ion. Charging circuit built-in.
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