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EIG Nexus 1250 Performance Power, Power Quality Meter and Data Acquisition Node
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The Nexus 1250, themost advanced monitoring product ever designed, provides the total picture of power usage and power quality for any metered point within a power distribution network allowing users to make power related decisions quickly and effectively.
High Accuracy Power Monitoring
At its core, the Nexus 1250 is a three phase recording power meter with billing grade 0.04% accuracy. It also measures & records power quality parameters, including harmonics, triggers/alarms and sub-cycle transient events. It displays phasor diagrams and captures & records waveforms and disturbances and features automated CBEMA curve plotting.
Power Quality Monitoring
On top of all this power monitoring functionality, the Nexus 1250 offers extensive communications capabilities that not only allow it to report its own data, but also allows it to serve as a data acquisition node, drawing and distributing information from other monitoring systems and functioning as an RTU. The Nexus 1250 has four on-board ports, each of which communicates using Modbus RTU/ASCII, DNP 3.0. Ports 3 and 4 can be used as a Modbus masterfor I/O modules.
Versatile Communications
In addition, perhaps the most powerful communications capabilities of the Nexus 1250 is it's integrated Internet communications. The Ethernet interface on the 1250 offers upto 12 simultaneous Modbus/TCP sockets simultaneously.
The Nexus 1250 has a built-in web server that autmatically builds, hosts and distributes power and power quality data across the Internet to an unlimited number of users without the need for any special server-side or client-side software - which makes it great for the IT department! One meter can read the data from multiple linked meters, allowing a single point of access for an entire network or meters and can send email alarms when parameters are exceeded or events occur.
Nexus 1250 as an RTU
Electro Industries offers multiple Analog and Digital I/O modules that mount externally to the Nexus. The unit supports up to 4 I/O modules using internal power. An additional power supply extends I/O capability. The master port of the Nexus eliminates the need for RTUs in many substation applications. The Nexus can poll different I/O devices, log data, and send data to a master station via Modbus or DNP 3.0 protocol. This I/O functionality is available in the Nexus at much lower costs than traditional substation RTUs.
The Nexus power monitor provides advanced logic and control on programmable limit settings. The 7000 values that the monitor measures can have limits and logic set to trigger operations. This features allows a user to configure the Nexus to be used as a control device for many applications
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High Accuracy Power Monitoring
At its core, the Nexus 1250 is a three phase recording power meter with billing grade 0.04% accuracy. It also measures & records power quality parameters, including harmonics, triggers/alarms and sub-cycle transient events. It displays phasor diagrams and captures & records waveforms and disturbances and features automated CBEMA curve plotting. Power Quality Monitoring
On top of all this power monitoring functionality, the Nexus 1250 offers extensive communications capabilities that not only allow it to report its own data, but also allows it to serve as a data acquisition node, drawing and distributing information from other monitoring systems and functioning as an RTU. The Nexus 1250 has four on-board ports, each of which communicates using Modbus RTU/ASCII, DNP 3.0. Ports 3 and 4 can be used as a Modbus masterfor I/O modules. Versatile Communications
In addition, perhaps the most powerful communications capabilities of the Nexus 1250 is it's integrated Internet communications. The Ethernet interface on the 1250 offers upto 12 simultaneous Modbus/TCP sockets simultaneously. The Nexus 1250 has a built-in web server that autmatically builds, hosts and distributes power and power quality data across the Internet to an unlimited number of users without the need for any special server-side or client-side software - which makes it great for the IT department! One meter can read the data from multiple linked meters, allowing a single point of access for an entire network or meters and can send email alarms when parameters are exceeded or events occur.
Nexus 1250 as an RTU
Electro Industries offers multiple Analog and Digital I/O modules that mount externally to the Nexus. The unit supports up to 4 I/O modules using internal power. An additional power supply extends I/O capability. The master port of the Nexus eliminates the need for RTUs in many substation applications. The Nexus can poll different I/O devices, log data, and send data to a master station via Modbus or DNP 3.0 protocol. This I/O functionality is available in the Nexus at much lower costs than traditional substation RTUs.The Nexus power monitor provides advanced logic and control on programmable limit settings. The 7000 values that the monitor measures can have limits and logic set to trigger operations. This features allows a user to configure the Nexus to be used as a control device for many applications
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Full Review
Advanced Features Include:
High-Performance Revenue Metering
High-Performance Power Quality Monitoring
Advanced Memory, Communication, Control and RTU Functions
High-Performance Revenue Metering
- Patented Pending ACCU-MEASUREฎ Sensing Technology
- Laboratory Grade 0.04% Watt-Hour Accuracy
- Exceeds all ANSI C-12 and IEC 687 Specifications
- Auto Calibration with Temperature Compensation
- Onboard Time of Use
- Load Aggregation
- Transformer Loss Compensation
High-Performance Power Quality Monitoring
- High-Speed Transient Recording
- Record up to 512 Samples per Cycle
- Voltage Surge and Sag Recording
- Fault Recording and Analysis
- Harmonic Analysis to 255th Order
- Onboard CBEMA Logging
- GPS Clock Sync
Advanced Memory, Communication, Control and RTU Functions
- 4 Meg Non-Volatile Storage
- 4 High-Speed Com Ports
- Multiple Protocols
- Optional Onboard Ethernet
- Optional Internal 56K Modem
- Built-in RTU Functionality
- Built-in PLC Functionality
- 90msec. High-Speed Updates for Control
- MV-90 Compatible
Input Voltage Range
150 Volt PH-N, 300V PH-PH (Suffix-120)
(Used with PTs for Extended Range)
300 Volt PH-N, 600 Volt PH-PH (Suffix-G)
Voltage Input Withstand Capability
Voltage Inputs optically isolated to 2500VDC.
Meets ANSI C37.90.1 (Surge Withstand Capability)
Input Current Range
5 amp Inputs 2x continuous programmable to any CT range
Fault Current recording to 60 amps peak secondary based on 5 amp full scale
Note: 1 amp and 0.25 amp current inputs available as special order
Current Input Withstand Capability
100 amps for 10 Seconds
300 amps for 1 Second
Burden
Voltage Inputs: 0.05VA Max
Current Inputs: 0.005VA Max
Compliance
ANSI C12.20 Class 0.2 and IEC687 (Accuracy)
ANSI C37.90.1 (Surge Withstand)
ANSI C62.41 (Surge)
Isolation
All inputs and outputs are isolated to 2500 Volts. All Com Ports are additionally isolated from each other.
Temperature Rating
Operating Temperature: -40 to +80ฐC Humidity: Up to 95% Non-Condensing
Sensing Method
Up to 512 Samples per Cycle (Programmable)
16 Bit A/D Resolution Dual Converters
Utilizes patent pending Accu-measureฎ Technology
True RMS
Accuracy Rating
This unit complies with and exceeds
ANSI C12.20 and IEC687 accuracy requirements.
Industry Canada Revenue Metering Approval:#AE-1069
Update Time
50 msec. High Speed Readings
1 Second Revenue Accurate Reading
Control Power Requirements
90276 Volts AC/DC (Suffix -D2)
1860 Volts DC (Suffix -D)
Frequency Range
20400Hz
Communication Format
Programmable parity and stop bits
Communication Protocols: Modbus TCP/IP ASCII/RTU and DNP 3.0
4 Communication ports, 2 slave ports, 2 selectable master/slave ports.
All ports use 2-wire RS-485 communication; Port 1 is RS-232 or RS-485 Selectable
INP2 - 56k Modem with Dial-Out Capability
INP10 - WebMod Running Modbus TCP Only - 10 Base-T
INP100 - Total Web Solutions - 10/100 Base-T
Construction
Constructed in a metal case. All hardware is stainless steel.
Shipping
Total shipping weight: approx. 12 lbs (5.4 kgs)
Shipping container dimensions: 16" x13" x11"
(40.64cm x 33.02cm x 27.94cm)
150 Volt PH-N, 300V PH-PH (Suffix-120)
(Used with PTs for Extended Range)
300 Volt PH-N, 600 Volt PH-PH (Suffix-G)
Voltage Input Withstand Capability
Voltage Inputs optically isolated to 2500VDC.
Meets ANSI C37.90.1 (Surge Withstand Capability)
Input Current Range
5 amp Inputs 2x continuous programmable to any CT range
Fault Current recording to 60 amps peak secondary based on 5 amp full scale
Note: 1 amp and 0.25 amp current inputs available as special order
Current Input Withstand Capability
100 amps for 10 Seconds
300 amps for 1 Second
Burden
Voltage Inputs: 0.05VA Max
Current Inputs: 0.005VA Max
Compliance
ANSI C12.20 Class 0.2 and IEC687 (Accuracy)
ANSI C37.90.1 (Surge Withstand)
ANSI C62.41 (Surge)
Isolation
All inputs and outputs are isolated to 2500 Volts. All Com Ports are additionally isolated from each other.
Temperature Rating
Operating Temperature: -40 to +80ฐC Humidity: Up to 95% Non-Condensing
Sensing Method
Up to 512 Samples per Cycle (Programmable)
16 Bit A/D Resolution Dual Converters
Utilizes patent pending Accu-measureฎ Technology
True RMS
Accuracy Rating
This unit complies with and exceeds
ANSI C12.20 and IEC687 accuracy requirements.
Industry Canada Revenue Metering Approval:#AE-1069
Update Time
50 msec. High Speed Readings
1 Second Revenue Accurate Reading
Control Power Requirements
90276 Volts AC/DC (Suffix -D2)
1860 Volts DC (Suffix -D)
Frequency Range
20400Hz
Communication Format
Programmable parity and stop bits
Communication Protocols: Modbus TCP/IP ASCII/RTU and DNP 3.0
4 Communication ports, 2 slave ports, 2 selectable master/slave ports.
All ports use 2-wire RS-485 communication; Port 1 is RS-232 or RS-485 Selectable
INP2 - 56k Modem with Dial-Out Capability
INP10 - WebMod Running Modbus TCP Only - 10 Base-T
INP100 - Total Web Solutions - 10/100 Base-T
Construction
Constructed in a metal case. All hardware is stainless steel.
Shipping
Total shipping weight: approx. 12 lbs (5.4 kgs)
Shipping container dimensions: 16" x13" x11"
(40.64cm x 33.02cm x 27.94cm)
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