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EM920 eXpertmeter - Socket Meter - Brochure

EM920 eXpertmeter - Socket Meter - Brochure
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EM920 eXpertmeter - Socket Meter - Brochure

Product catalog summary
Overview: The SATEC EM920 eXpertmeterTM is a high-performance energy meter designed for advanced metering infrastructure (AMI) in smart grid deployments. It offers precise energy measurement, power quality analysis, and modular expansion capabilities.
Key Features:
  • Modularity: Supports 'Add-On' modules for customization and future upgrades, enhancing versatility and cost-effectiveness.
  • Accuracy: Exceeds Class 0.2S revenue billing requirements, with a precision of 0.05% for revenue-grade accuracy.
  • Power Quality Analysis: Complies with EN 50160 and IEC standards, offering advanced waveform recording and transient detection.
  • Communication: Supports multiple protocols including MODBUS, DNP3.0, and MV90, with options for Ethernet and cellular connectivity.
  • Data Storage: Long-term memory for load profiles and trend analysis, with real-time data access for improved decision-making.
Applications: Suitable for electric utility inter-ties, substations, and monitoring primary customers. Provides essential data for planning and maintenance, enhancing service quality.
Technical Specifications:
  • Voltage and Current Inputs: Supports a wide range of voltage and current measurements with high input impedance and overload protection.
  • Transient and Fault Recording: Capable of recording short transients and fault currents with high sampling rates.
  • Communication Ports: Includes USB, RS485, and infrared ports, with optional modules for extended connectivity.
  • Standards Compliance: Meets various international standards for accuracy, power quality, and electromagnetic compatibility.
Conclusion: The EM920 is a versatile and precise energy meter ideal for modern grid applications, offering advanced features for energy management and power quality analysis.
Technical Specifications Overview:
Voltage and Current Specifications: Starting voltage of 0.1% Un, burden per phase of less than 0.5 VA, withstands overload of 4000V AC for 1 minute phase-to-ground, rated impulse voltage of 6000V peak. AC current inputs are 3 (4 optional) with galvanic isolation, reference current for the basic model is In = 5A, maximum measurable short circuit current is 10 times In, burden per phase of less than 0.2 VA.
Input and Output Specifications: Fast status input is digital and optically isolated, sampling rate of 1 ms. Relay outputs include a standard KYZ digital output and optional modules with SSR and EMR relays. Analog outputs are galvanically isolated with options for 4-20 mA, 0-20 mA, and ±1 mA, non-linearity of 0.2% and accuracy of 0.5%.
Communication Ports: Includes multiple communication ports such as COM1 with an IR port, COM2 for GSM/GPRS modules, COM3 with RS-485, and COM4 for Ethernet-TX. Protocols supported include Modbus RTU/ASCII and DNP3.0, with isolation of 2500V AC for 1 minute.
Display and Power Supply: Display unit is a 4" graphic LCD with a resolution of 320x240 dots. Power supply is internal, with options for low and high voltage inputs, and an auxiliary AC/DC power supply module. Operating temperature range is -40°C to +85°C.
Environmental and Certification Details: Operates in temperatures ranging from -40°C to 75°C, with storage temperatures up to 85°C. Includes a battery for RTC and SRAM with a minimum operation reserve of 48 hours and a service life of over 10 years. Testing and certification options include full functional tests and ISO 17025 certified calibration.
Ordering Information: The EM920 model includes various options for voltage inputs, current inputs, communication, and auxiliary power supply. Testing and certification options are also available.
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Catalog excerpts

EM920 eXpertmeter - Socket Meter - Brochure-1

Powerful Solutions HIGH PERFORMANCE REVENUE SOCKET METER CUTTING EDGE POWER QUALITY ANALYZER FAST TRANSIENT & FAULT RECORDER

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EM920 eXpertmeter - Socket Meter - Brochure-2

Advanced Metering Infrastructure (AMI) has reached new heights with SATEC's latest introduction in energy and power quality measurements for smart grid deployments. The SATEC Model EM920 eXpertmeter™ is an advanced energy analyzer in a socket meter with precise measurement and expansion capabilities. The EM920's unique "Add-On" modularity is the key to its remarkable versatility and unprecedented effort to add intelligence, control and communications to electrical metering. SATEC's "Add-On" module concept allows you to configure the meter to your changing needs, thus saving valuable time in the field...

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EM920 eXpertmeter - Socket Meter - Brochure-3

□ Modularity: Add-On module support to configure and change with your growing needs, instead of requiring complete assemblies that can only be changed at the factory □ Add on I/O slots. Add inputs to count other pulses or add outputs to generate energy pulse □ Real Time Oscillography. View quality of power (waveform) in real time □ Internal memory for long term data storage—16 MB □ Optional Remote Display Module (RDM) LED front panel display □ True Power Quality EN 50160 Standard □ Precise measurement 0.05% revenue grade accuracy □ Advanced Power Quality waveform recording (4 waveform recorders) □...

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EM920 eXpertmeter - Socket Meter - Brochure-4

The EM920 is a high precision, multi-purpose 4 quadrant meter used for active, reactive, and apparent energy / demand measurement and recording. The meter is ideal for grid applications in generation, transmission and distribution utilities. Designed for major industrial and commercial consumers as well. Accuracy class 0.2S approved according to ANSI C12.20 class 10/20 and to IEC 62053-22 class 0.2S, and designed according to even more rigorous SATEC standards. The meter delivers precision, reliability and long-term stability. An all in one meter, the EM920 is the answer to Precise metering of...

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EM920 eXpertmeter - Socket Meter - Brochure-5

High Performance Revenue Meter

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EM920 eXpertmeter - Socket Meter - Brochure-6

The EM920 is among the most advanced power quality analyzer and recorder on the market. The instrument is a product of SATEC's 20 years of experience in the creation of power quality instruments. The EM920 is designed to fully comply with the most demanding industry standard, IEC 61000-4-30 Class A. It provides power quality reports and statistics according to EN 50160, complimented by comprehensive power quality event/ data log with waveforms (3 voltage and 4 current inputs for waveform recording) available for detailed Power Quality event analysis. The individual harmonics and inter-harmonics are...

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EM920 eXpertmeter - Socket Meter - Brochure-7

Power Quality Events Via PAS Software DIREC TIO VOLTAGE TION INTERRUP

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EM920 eXpertmeter - Socket Meter - Brochure-8

The EM920 provides state-of-the-art fast transient recording capability. Transient pulses as short as 17 microseconds can be reliably recorded and analyzed. The EM920 can record such short pulses by a separate electronic channel with a sampling rate of 1024 samples/cycle. The transient amplitude is recorded relative to the ground in accordance with the strict definitions of power quality standards (EN 50160). The instrument can measure transient pulses with an amplitude of up to 2 kV (withstands up to 6 kV). Four voltage waveforms (3 phases and neutral relative to the ground) are recorded at...

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EM920 eXpertmeter - Socket Meter - Brochure-9

COMMUNICATION □ Reads 5 simultaneous independent communication ports (3 standard): □ Infrared port (Modbus RTU/ASCII and DNP3.0 protocols). Supports IEC 62056-21/61 standard—hardware and protocol specifications for local meter data exchange □ USB 2.0 full speed device port (Modbus RTU protocol, 12 Mbps) for fast local communications and data retrieval □ RS485 universal serial communications port (up to 115,200 bps, Modbus RTU/ASCII and DNP3.0 protocols) OPTIONAL ADD-ON I/O & COMMUNICATION MODULES State-of-the-art communication abilities enabled by the EM920 concept: □ Ethernet 10/100 Base-T port...

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EM920 eXpertmeter - Socket Meter - Brochure-10

ACCURACY □ ANSI C12.20: Class 10/20: 0.2S □ IEC 62053-22: Class 0.2S POWER QUALITY □ Harmonics and interharmonics measurement: IEC 61000-4-7 class I □ Flicker measurement: IEC 61000-4-15 □ Power quality measurement methods: IEC 61000-4-30 class A/ EN 50160 □ Real-time clock backup and accuracy: IEC 61038 POWER CONSUMPTION □ 5W or 20VA on each voltage input: ANSI C12.1-2008 EMC IMMUNITY □ AC Line Surge: IEEE/ANSI C62.41-2002 □ 100kHz ring wave @ 6kV/0.5kA □ 1.2/50 ps - 8/20 ps Impulse @ 6kV / 3kA □ Magnetic Field: ANSI C12.1 □ EFT/B: IEC 61000-4-4: level 4—4kV AC lines and 2kV I/O and COM lines □...

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EM920 eXpertmeter - Socket Meter - Brochure-11

* @80% to 120% of voltage FS, 2% to 200% of current FS and frequency 50/60 Hz.

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EM920 eXpertmeter - Socket Meter - Brochure-12

Reference voltage Un 57.73V up Voltage rating: to 120V L-N (standard) 57.73 up to 120 Volts (L-N), 100 to 207 Volts (L-L) Crest factor >2 [VL_N x 1.2 x 2] peak up 288V (for PQ) Maximum Line to Line voltage 500 V r.m.s Temporary over voltage between live conductors and earth 240 V r.m.s Transient over voltage between live conductors and earth 1.5 kV peak (optional, from 15 ps up to ms) Starting voltage1 0.1%Un Burden per phase < 0.2VA Overload withstand for 1 minute phase-to-ground (ANSI C12.1 4000V AC & IEC 62053-22, protective class II) Rated impulse voltage 6000V...

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EM920 eXpertmeter - Socket Meter - Brochure-13

Technical Specifications Fast Status Input Digital Input optically isolated 2DI (standard) 8DI Optional module Dry contacts, internally wetted Resistance of open contact sensing Resistance of closed contact sensing Sampling rate Insulation Dielectric withstand Terminals for wires size Digital output – SSR optically isolated Operation time Release time Insulation Dielectric withstand Terminals for wires size Blades (Socket meter standard—C12.10) Relay Output Operation time Release time Insulation Dielectric withstand Operation time Release time Insulation resistance of open contacts Insulation...

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EM920 eXpertmeter - Socket Meter - Brochure-16

MODEL EM920—Form 9S (includes 2DI, 1KYZ relay, USB, RS485 port) OPTIONS VOLTAGE INPUTS Standard - 120 up to 277 Volts AC (L-N) ± 20% (208 to 480 volts L-L) (cannot be combined with auxiliary power supply) Low Voltage 57.73 up to 120 Volts (L-N), 100 to 208 Volts (L-L) via PT CURRENT INPUTS 5 Ampere TRANSIENT CAPTURE Standard (256 samples per cycle) Transient module (transient over-voltages as short as 17 µs are detectable, up to 2 kV amplitude is measurable) COMMUNICATION (MAX. 1 PER DEVICE) Standard (USB, RS-485, IR) Ethernet TX, IRIG-B and additional RS-232/485 Ethernet TX, IRIG-B, additional...

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