Communication and User Interface
• 100BaseT Ethernet Port
• Expandable Serial Ports
• Modbus and Modbus TCP
• Over 24 Simultaneous Connections
• Nexus™ RTU Functions
• Programmable 256 Color XM L Based Display
New Generation Power Quality
• 10MHz Transient Recorder (166,000 Samples per Cycle)
• 8 Channel Waveform Recorder
• Voltage Surge, Sags and Transient Recording
• Current Fault Signatures and Analysis
• 1 Gigabyte Memory, Expandable Compact Flash
A Quantum Leap in Metering Technology
For customers from today’s utility giants, to Fortune 100
companies, to local electrical municipals, an effective energy
management and power monitoring program is critical to
success. The Nexus™ 1500 Meter, the most advanced
OBTAIN HIGH -END POWER QUALITY
& ACCURATE BILLING MEASUREMENTS
High performance usage and power quality data is always
available online in the Nexus™ power meter, providing the
needed power system assessment immediately. The Nexus™
monitoring product to date, provides the total picture of
1500 Meter provides advanced power disturbance recording,
power usage and power quality for any metered point within
EN50160 Flicker Analysis and AI-based PQ reporting and
a power distribution network, allowing users to make power
analysis. Use the Nexus™ 1500 Meter's precision accuracy
related decisions quickly and effectively. With EIG’s exclusive
for primary metering, submetering or checking on an installed
Total Web Solutions, you can monitor your Nexus™ 1500 Meter
utility meter.
anytime and from anywhere via the Internet.
TECHNOLOGY DESIGNED FOR UTILITIES
INDUSTRIAL USERS
AND
FOR ENERGY PROVIDERS
(Utilities, Municipals, ESPs, Independents, etc.)
Improve Substation Automation Solutions
Increase Power Distribution Reliability
Record Faults/Time Protective Equipment
Monitor Reliability of Breakers and Relays
Shed or Shift Loads Quickly
Identify and Manage Peak Demand
Heighten Response Time to PQ Events
EXPANDABLE OPTIONS & TRENDING CUSTOMIZE THE
NEXUS™ 1500 METER FOR EVERY APPLICATION
The Nexus™ Meter offers virtually unlimited I/O capability
Enhance Levels of Communication and
Data Transmission
in conjunction with all metering functions. Expandable
Provide Real Time Data on the Web
data-gathering applications. The meter's modular plug-in
FOR ENERGY CONSUMERS
(Industrial, Commercial, Government, etc.)
options enable the meter to be used for all metering and
design allows you to add Analog and Digital Output Modules
to specifically meet your application. With this advanced
capability, you can use the Nexus™ 1500 Meter to replace
Real Time PQ Monitoring and Analysis
Efficiently Control/Manage Energy Consumption
Improve Operational Efficiencies
Increase Productivity/Reduce Downtime
Optimize Loads/Extend Equipment Life
Identify and Respond to PQ Events Quickly
Avoid High Utility Penalties for Exceeding Usage
View Energy Usage and Power Quality
through the Web
Billing Data and System Reliability Monitoring
RTUs and PLCs for energy management and substation
automation solutions.
3
The Most Advanced Revenue Metering Technology
Nexus™ 1500 Meter
Accu-Measure™ Technology
MULTIPART APPROACH
TO PRECISION IN ACCURACY
TIME
OF
USE CAPABILITY
The Nexus™ 1500 Meter offers
comprehensive time of use capability.
The Nexus™ 1500 Meter is the first device
of its kind to utilize EIG’s patent pending
Standard features include:
Accu-measure™ technology. Accu-measure™
• Bidirectional Consumption
and Demand Quantities
technology is a technique based on a multipart
• 20 Year Calendar
approach that allows a field-mounted metering
device to achieve laboratory accuracy.
8 INDEPENDENT 16 BIT A/D CONVERTERS
Eight 16 Bit A/D converters provide supreme
sampling accuracy and resolution - no sample
• 4 Seasons/Yr
• 12 Holidays/Yr
• 4 TOU Schedules/Seasons
Real Time Readings & Waveform Display
• Prior Month, Prior Season
Storage
skews causing accuracy errors.
• Present Month, Present Season
Storage
DUAL INTERNAL REFERENCES
• Hourly, Weekly Freeze Schedule
The unit auto adjusts to dual internal
references accurate to 1 part per million.
These references ensure that the monitoring
equipment maintains its calibration.
AUTO-CALIBRATION
COMPENSATION
WITH
TEMPERATURE
The Nexus™ 1500 Meter uses an autocalibration technique that recalibrates the
unit on the fly when the temperature changes
more than 5 degrees Centigrade, thereby
monitoring for accuracy over temperature.
PRECISION ACCURACY SPECIFICATIONS
With Accu-measure™ technology, this unit far
exceeds all ANSI C-12 and IEC 687
MAX/MIN INTEGRATION
AND
RECORDING
The unit offers time stamped max and
min values for every measured reading.
A time stamp is associated with each
max and min. KW readings are
integrated using:
• Block (Fixed) Window
• Thermal Window
• Rolling (Sliding) Window
• Predictive Window
Any integration period is allowed. The
default period is 15 minutes.
COINCIDENTAL READINGS
When logging max Watt readings,
accuracy specifications. The unit offers
the coincidental VARs at the time of
0.08% watt-hour accuracy.
the max are also recorded. You can
REVENUE METERING FEATURES
TRANSFORMER LOSS, LINE LOSS, AND
SUBSTATION LOSS COMPENSATION
4 Quadrant Energy and Demand
determine the number of capacitors
needed, peak inefficiencies and many
other issues.
The unit compensates for transformer and
line losses. Power reading compensation is
conducted for both iron and copper losses.
PULSE AGGREGATION / UNIVERSAL METERING
Using the status inputs, the Nexus™ 1500
Meter has the ability to count pulses and
aggregate different loads providing a total
picture of the load and its component parts.
The pulse inputs can be used to accumulate
and aggregate all other utility values such as
water and gas.
Historical Trends for Any Parameter
Detailed Power Quality Recording
16 BIT WAVEFORM
AND
FAULT RECORDER
The unit records up to 1024 samples per
STATUS INPUT TRIGGERS
The unit records the waveform at the
INDEPENDENT CBEMA LOG PLOTTING
The Nexus™ 1500 Meter stores
cycle for an event with 10MHz voltage
time of the status change. The input
an independent CBEMA Log for
transient sampling. Voltage and current
change and waveform recording are
magnitude and duration of voltage
are recorded with pre- and post-event
time stamped to a 1msec resolution.
events. With this log, the user can
analysis. Fault recording offers 8x full
quickly view total surges, total sags
scale capture capability. All voltage and
ADDITIONAL INPUTS
and average duration without having
current readings are recorded using a
The Nexus™ 1500 Meter offers
to retrieve waveform information.
16 bit A/D converter providing precise
inputs for Neutral to Ground Voltage
waveform resolution. Both hardware
measurements. This allows you to
and software triggers are available to
analyze rising ground potential which
activate a waveform recording, which
often damages electrical equipment.
can be used for power quality surveys,
The unit also calculates and measures
fault analysis, breaker timing, etc.
the neutral current.
PHASOR ANALYSIS
The monitor provides a phase angle
analysis between the voltage and
current channels, allowing for efficiency
and system-integrity analysis.
MEASURE AND RECORD HARMONICS
TO THE 512TH ORDER
SUBCYCLE TRANSIENT RECORDER
The Nexus™ 1500 Meter is equipped
The unit measures harmonics up to
with 4 independent 10MHz analog to
the 512th order for each voltage and
digital converters that measure transient
current channel. Real Time Harmonics
samples 10 million times per second.
are resolved to the 128th order. Percent
The unit records subcycle transients on
THD and K-Factor are also calculated.
voltage and current readings. It monitors
This high performance harmonic analysis
switching noise from capacitors, static
allows users to conduct power quality
transfer switches, SCRs and many
analysis at the high end of the harmonic
other “power quality harmful” devices.
spectrum.
Transients are often the cause of
intermittent and expensive periods of
downtime. Without the Nexus™ 1500
Meter, solving these problems is often
impossible.
5
Advanced Reporting and Analysis
EN50160 FLICKER AND
COMPLIANCE MONITORING
INTERHARMONIC ANALYSIS
It is important to maintain a source of high
Using Communicator EXT, the Nexus™
quality power to insure efficient operations.
1500 meter provides users stored
One particular source of disturbance that
samples that can be used to view
can have very negative effects is Flicker.
Interharmonics, the discrete harmonics
Flicker consists of low frequency (less
that lie between the fundamental
than 24Hz) to intermittent line disturbances
frequency of voltage and current.
on the power line. Aside from effects on
Interharmonics which are not an integer
equipment, disturbances of this type can
multiple of the fundamental can now be
have negative effects on people.
observed and can appear as discrete
frequencies or as a wide-band spectrum.
Nexus™ 1500 Meter
AiReports EXT - PQ Analysis
AiReports EXT provides automated
analysis and reports for abnormal events.
• Uses Artificial Intelligence
• Evaluates All Data from Nexus™ Meters
• Rates Events for Severity
• Identifies Probable Causes
• Identifies Possible Impact
• Recommends Corrective Actions or
Solutions
One particular example of this is the
flickering of light sources that can affect
The user can set a starting point
humans in different ways, depending on the
anywhere in the waveform, assuming
severity.
that there are enough sample points
The Nexus™ 1500 Meter complies fully with
the Flicker requirements of EN50160 and
are not enough points in this waveform
capture, the software will check the
includes:
- Flicker Evaluation-Instantaneous readings
suitable for online monitoring; Short Term
Readings
available after the starting point. If there
(PST - 10 Min)
- Logging and monitoring - Long Term
next waveform record(s) stored in the
database. If it is contiguous, additional
points up to 200ms will be retrieved for
analysis.
• Prepares & Formats Reports of All Power
Quality Events
• PQDIF File Format Converter allows the
Nexus™ 1500 Meter's data to be read by
standard EPRI Power Quality viewing
software
• COMTRADE File Converter changes fault
records to standard fault analysis file
formats
Measure amplitudes and timing with
millisecond resolution. See system
reliability events that lasted for several
seconds.
Readings (PLT - 4 hour) - logging and
monitoring
- Polling - Pinst, Pst, Pst Max, Pst Min,
Plt, Plt Max, Plt Min values
- Log Viewer (View graphed values Pst
and Plt for Va, Vb and Vc or displayed
values including Max and Min.)
Cutting-Edge Technology Monitors Your Power Quality
Total Web Solutions
Total Web Solutions—
Providing Advanced Metering Data
Integration with the Web
WebMod
Total Web Solutions is an advanced Ethernet
(Open Architecture 3rd Party Integration)
communication architecture allowing you to
The 10/100BaseT design allows the unit
display metering data and host your meter power
to speak with 12 simultaneous sockets
information web page directly on a Nexus™ meter.
of Modbus TCP. The standard 100BaseT
The Nexus™ meter directly hosts the web data
Ethernet port allows multiple users to
without any need for dedicated server software,
access meter data without any interface.
ActiveX Controls or Java Applets. The meter does
the data collection, the formatting and the page
hosting. Additionally, this solution is very Information
Technology Department friendly because it creates
almost no network traffic and provides all formatted
data through an HTTP interface without resident
• 12 Simultaneous Sockets Of Modbus Over
Ethernet Communication
• Multiple Sockets Means Multiple Users Or
Software Systems Can Reach Meter
Simultaneously
client software.
Advanced Features Include:
• Direct Web Page Hosting With
Live Readings
• Read Direct From Meters (No Server
Software Needed)
• Low-Cost / High Functionality
WebExplorer
(Directly Host Metering Data)
EIG’s WebExplorer provides you with direct access
to all power data through Internet Explorer without
needing to download ActiveX Controls or Java
Applets.
• Easily Incorporated Into Any Existing
Web Applications
Simultaneous
Communications
over TCP/IP
TCP/IP
Connection
7
1 Gigabyte Extensive Onboard Mass Memory Securely Records All Data
Nexus™ 1500 Meter
Multiple Programmable Memory Logs
I/O HISTORICAL LOGS
The Nexus™ 1500 Meter is equipped
with vast amounts of memory. A user
can partition this memory for log storage
by setting up both the number of logs
and the number of parameters per log.
Up to 8 historical logs can be created
with up to 128 parameters per log.
OUT OF LIMIT LOG
The unit offers an independent out of
limit log. This allows a user to download
out of limit information to obtain a
sequence of events for any occurrence.
Utilizing the 1msec clock resolution, the
logs can be combined with different
metered points throughout a distribution
system to provide an accurate systemwide depiction of a power disturbance.
The unit records the waveform when
RELAY OUTPUT LOG
a value goes out of limit and when the
The unit records when a relay output from
value returns to normal. All information
the external Output Module is activated,
is timestamped to the nearest 1msec.
timestamps the event and provides a
The 8 onboard high-speed inputs can
reason for why the relay changed status.
be tied to the waveform recording. You
can record when a breaker tripped as
compared to when the relay activated.
This is very useful for fault and breaker
integrity analysis.
The unit can be programmed to take
more than one recording every time an
event occurs. Thousands of cycles can
be recorded per event.
CBEMA LOG
The Nexus™ 1500 Meter stores a
separate CBEMA log that records
magnitude and duration of voltage
and current surges and sags for every
power quality event. This allows the
user to conduct real time CBEMA
analysis without downloading all stored
waveforms. The separate CBEMA log
EVENT-TRIGGERED WAVEFORM
RECORDING LOG
The Nexus™ 1500 Meter records
waveforms with a resolution of up to
512 samples per cycle. The amount of
waveform recording is based on the
amount of memory installed.
also allows the unit to provide a more
comprehensive picture of power quality
over time.
INPUT STATUS LOG
This log is similar to the Relay Output
Log. It allows the user to record when the
internal inputs change status.
UPLOADABLE FLASH MEMORY
The Nexus™ 1500 Meter utilizes
uploadable flash memory technology on all
processors and DSPs located in the unit.
This insures that the unit can be upgraded
without removing it from service.
SET LIMIT CONTROL
The Nexus™ 1500 power monitor provides
programmable setpoints for user settings.
This feature allows a user to configure the
meter to be used as a control device for
many applications such as:
• Capacitor Control
• Load Shedding
• Automatic Transfer Schemes
• Transformer Monitoring & Control
• Redundant Protection
(Not designed for Primary OverCurrent Protection)
• Many Other Control Functions
Onboard Communication for Every Application
ROBUST COMMUNICATION
CAPABILITIES
AND
I/O
The Nexus™ 1500 Meter has many
additional capabilities that allow it
to communicate with almost any
infrastructure. Basic communication is
standard with the following:
• Front Read ANSI Optical Port
• Front Read USB Port
• 10/100BaseT Ethernet with
Total Web Solutions RJ-45
SYNC. CHECK-AUX. VOLT INPUT
The unit has a high-speed Vaux input. This
input can be used for multiple purposes
• Neutral to Ground
• Voltage Readings
• Synchronizing Schemes
The Vaux channel can be used to get the
frequency, magnitude and phase angle
on both sides of a switch or between
generator and bus voltage.
OPTIONAL ON-BOARD COMMUNICATION
CAPABILITIES
• 2 RS485 Ports
STANDARD ON-BOARD I/O
• 4 KYZ Pulses
• 8 Status Inputs
• IRIG-B GPS Clock
Superior Construction and Isolation
This unit is a rugged, durable
CURRENT INPUTS
COMMUNICATION PORTS
OUTPUT MODULES
device. It provides considerable
All current inputs utilize EIG's
All communication ports are
Each output module is isolated
protection and isolation from
dual input technology. They
isolated from the main unit and
from the main unit and from
damaging outside forces.
can be terminated at the meter
additionally isolated from each
other output modules. No
POWER SUPPLY
or available as a CT wire pass
other. This avoids dangerous
signal entering an output
The power supply offers both
through.
ground loops.
module can damage any other
part of the Meter.
MOV protection and active line
filtering to reduce any damage to
the supply.
VOLTAGE INPUTS
The voltage inputs are
galvanically isolated to 5000 Volts
from I/O. Issues such as noisy
2 Expandable
RS485 Ports
8 High-Speed
Status Inputs
IRIG-B Input
Onboard
Ethernet TCP/IP
Connection
ANSI
Optical
Port
grounds, switching noise, SWC
Revenue Lock
or any other such problems
pose no threat to the meter.
Nema 12
Rated Color
LCD
4 Voltage
Inputs
High Speed
USB Port
2 Infrared Test
Pulses
Rugged 4
Current Inputs
9
Programmable Color LCD Display
USER DEFINED PROGRAMMABLE DISPLAY
Nexus™ 1500 Meter
PROGRAMMABLE HMI
The Nexus™ 1500 Meter uses unique XML
based technology to allow users to define
custom screens and screen functions.
FULL METER LOG FUNCTIONALITY
Real-time historical logs, waveform events
and much more can be displayed by
the meter. You can use the unit to view
real-time trending, faults immediately
after occurrence, and other time-critical
information.
Mounting and Installation
Mounting Brackets
Panel Mounted
The Nexus™ 1500 meter is designed to mount in a panel.
1. Slide the meter into the panel.
2. From the back of the panel, slide 4 Mounting Brackets into the
grooves on the top and bottom of the meter housing.
3. Snap the Mounting Brackets into place.
4. Secure the meter to the panel with lock washer and a #8 screw in
each of the 4 mounting brackets.
Nexus™ 1500 Meter Mounting Hole
Dimensional Drawings
Wiring Diagrams
11
Specifications
Nexus™ 1500 Meter
INPUT VOLTAGE RANGE
• Voltage Transient: 10MHz
SHIPPING
• 720 Volts AC
• 16 Bit A/D Resolution – Multiple Converters
Total shipping weight:
VOLTAGE INPUT WITHSTAND CAPABILITY
• Utilizes patented Accu-measure™
approx. 5 lbs (2.3 kgs)
• Voltage Inputs optically isolated to 2500V DC.
Meets ANSI C37.90.1 (Surge Withstand Capability)
INPUT CURRENT RANGE
• 5 amp Inputs 4x continuous programmable
to any CT range
Technology
Shipping container dimensions: 16" x13" x11"
(40.64cm x 33.02cm x 27.94cm)
• True RMS
ACCURACY RATING
COMPLIANCE
• This unit complies with and exceeds
• ANSI C12.20 Class 0.2 and IEC687 (Accuracy)
ANSI C12.20 and IEC687 accuracy requirements.
• ANSI C37.90.1 (Surge Withstand)
• Fault Current recording to 80 amps peak
secondary based on 5 amp full scale
Note: 1 amp and 0.25 amp current inputs
available as special order
UPDATE TIME
• ANSI C62.41 (Surge)
• 1 Second — Revenue Accurate Readings
• ANSI/IEEE C37.90.1 – Surge Withstand
CURRENT INPUT WITHSTAND CAPABILITY
• 200 msec — High Speed Readings
• IEC 1000-4-2 – ESD
• 100 amps for 10 Seconds
CONTROL POWER REQUIREMENTS
• IEC 1000-4-3 – Radiated Immunity
• 300 amps for 1 Second
• 90–264 Volts AC/DC (Suffix -D2)
BURDEN
• Burden: 40 VA Max
• Voltage Inputs: 0.098VA Max
FREQUENCY RANGE
• Current Inputs: 0.008VA Max
• 45Hz–75Hz
ISOLATION
COMMUNICATION FORMAT
All inputs and outputs are isolated to 2500 Volts. All
Com Ports are additionally isolated from each other.
• Programmable parity and stop bits
• IEC 1000-4-4 – Fast Transient
• IEC 1000-4-5 – Surge Immunity
• IEC 868 – Flicker Meter
• IEC 61000-4-15 – Flicker Meter
• CE Marked - Pending
• UL and cUL Listed - Pending
• Communication Protocols: Modbus TCP/IP,
ASCII/RTU
Covered by one or more of the following US patents:
TEMPERATURE RATING
• Operating Temperature: (0 to +60)°C
• Optical Port
6,751,563 - Total Web Solutions
• Humidity: Up to 95% Noncondensing
• USB Virtual COM Port
7,155,350 - Virtual Switching
SENSING METHOD
• RJ-45 Ethernet Port – 100BaseT
6,735,535 - Auto-calibration
• Up to 1024 Samples per Cycle
(Programmable)
• 2 RS485 Ports (optional)
D 526920 - Design
6,636,030 - Transients
Other Patents Pending
Measurement Accuracy (% of Reading)
PARAMETER
High Speed
1 SECOND
DISPLAY
RESOLUTION
Voltage (L-N)
Voltage (L-L)
Current
Frequency
KW @ Unity PF
KW @ .5 PF
KVA
VAR
PF
Harmonics
KW/Hours
KVA/Hours
KVAR/Hours
0.1%
0.01%
0.01%
0.025%
0.001 Hz
0.08%
0.1%
0.08%
0.08%
0.06%
0.1%
0.06%
0.08%
0.08%
5 Digit
5 Digit
5 Digit
00.001 Hz
5 Digit
5 Digit
5 Digit
5 Digit
3 Digit
3 Digit
9 Digit
9 Digit
9 Digit
0.1%
0.1%
0.01 Hz
0.1%
0.1%
0.1%
0.1%
0.1%
N/A
N/A
N/A
N/A
Ordering Information
Nexus™ 1500 Meter
Ordering Specifications
To order a Nexus™ 1500 Meter:
1. Fill out the options you want in the
order chart shown on the right.
List accessories separately.
2. Specify Communicator EXT 3.0.
3. If you provide CT and PT
ratios and wiring, EIG will program
the units at the factory.
Control
Power
Nexus™
Base Meter
Option
Numbers:
Example:
Nexus™1500
Nexus™
1500 Meter
-
Frequency
Range
D2
D2
90-264 Volts
AC/DC Power
Supply
-
Communication
Expansion
60 Hz
60 Hz
50 Hz
-
485P
X
No Option
485P
2 RS485
4 KYZ Pulses
Accessory Options
SOFTWARE
COMEXT3.1C
Communicator EXT 3.0 for Windows®
Single-Computer License (One Site)
COMEXT3.MC
Communicator EXT 3.0 for Windows®
Multiple-Computer License (One Site)
AIEXT.1C
AiReports EXT Power Analysis Software for
Windows ® Single-Computer License (One Site)
AIEXT.MC
Multiple-Computer License (One Site)
Electro Industries/GaugeTech
The Leader in Web Accessed Power Monitoring
1800 Shames Drive • Westbury, NY 11590
1- 877-EIMETER (1- 877-346-3837) • Email: sales@electroind.com
Tel: 516-334-0870 • Web Site: www.electroind.com • Fax: 516-338-4741
E154705 110507 A