EIG Nexus 1252 Performance Power Quality and Revenue Meter

Perfect for Industrial, Commercial and Utility Applications, the "Performance Enhanced" Nexus 1252 is the newest power meter in the industry-leading Nexus series. The 1252 includes all the attributes of the Nexus 1250 as well as a host of new features that arm users with the highest level of PQ analysis and communication on the market today including:

• EN 50160 Flicker and Compliance Monitoring
• Interharmonic Analysis
• DNP 3.0 Level 2 Plus Protocol
• Enhanced Log Downloading
• Customized Modbus Mappings
  

Compliant with EN 50160 international standards, the 1252 enables users to perform flicker analysis that can be damaging to both equipment and humans. The unit provides you with logging and monitoring for instantaneous Short Term (PST-10 Min) and Long Term (PLT-4 hour) evaluation.

The Nexus 1252 Log Viewer program provides users with the ability to do more comprehensive analysis by viewing Interharmonics, the further frequencies between the harmonics of the power frequency voltage and current which are not integers between the fundamental.

Incorporating the Industry leading, most advanced DNP 3.0 Implementation Protocol (DNP 3.0 Level 2 Plus), the Nexus 1252 complies with all DNP Level 1 and Level 2 certification requirements and additional key features including:

• Mapping of up to 136 measurements to DNP Static points
• Up to 16 Relays and 8 resets controlled through DNP
• Flexible combinations of 4 events (Binary Input Change, Frozen Counter, Counter Change, Analog Change) for up to 250 Events
• Freeze Commands
  

Full Review

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 2500V DC.
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

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 +80)ฐC   Humidity: Up to 95% Noncondensing

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
90–276 Volts AC/DC (Suffix -D2)
18–60 Volts DC (Suffix -D)
Burden: 20 VA Max

Frequency Range
20–400Hz

Communication Format
Programmable parity and stop bits
Communication Protocols: Modbus TCP/IP ASCII/RTU and DNP 3.0 Level 2 Plus
 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
INP100 - Total Web Solutions - 10/100BaseT

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)

Compliance
ANSI C12.20 Class 0.2 and IEC687 (Accuracy)
ANSI C37.90.1 (Surge Withstand)
ANSI C62.41 (Surge)
ANSI/IEEE C37.90.1 – Surge Withstand
IEC 1000-4-2 – ESD
IEC 1000-4-3 – Radiated Immunity
IEC 1000-4-4 – Fast Transient
IEC 1000-4-5 – Surge Immunity
IEC 868 – Flicker Meter
IEC 61000-4-15 – Flicker Meter
CE Marked
UL and cUL Listed

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