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BASIC DESCRIPTION AND OPERATION The following chapter presents basic information about a MC784 Advanced Power Quality Analyser required to understand its purpose, applicability and basic features connected to its operation. Besides that, this chapter contains navigational tips, description of used symbols and other useful information for understandable navigation through this manual. Regarding the options of the MC784 Advanced Power Quality Analyser, different chapters should be considered since it might vary in functionality and design. More detailed description of device functions is given in chapter Main Features, supported options and functionality. The MC784 Advanced Power Quality Analyser is available in housing for panel mounting. Specifications of housing and panel cut out for housing is specified in chapter Dimensions|displayasbutton=true;topic=Dimensions Introduction Regarding the type of a Measuring centre different chapters should be considered since the types differ in functionality and design. More detailed description of device functions is given in chapter Reset|displayasbutton=true;topic=Main Features, supported options and functionality. Al types of measuring centres are available in DIN or ANSI housing. Devices in DIN housing are marked as types MXxxx, devices in ANSI housing are marked as types UMXxxx. Specifications of housing and panel cut out for both housings are specified in chapter Dimensions|displayasbutton=true;topic=Dimensions. Contents Contents and size of a packaging box can slightly vary depending on type of consignment. Single device shipment or a very small quantity of devices is shipped in a larger cardboard box, which offers better physical protection during transport. This type of contents contains:: Measuring instrument Fixation screws Pluggable terminals for connection of inputs, aux. Power supply and I/O modules CD with full version of this document, installation of setting software MiQen, required drivers for -USB (if device is equipped witd USB communication) Short installation manual When larger amount of devices is sent they are shipped in a smaller cardboard box for saving space and thus reducing shipment costs. This type of contents contains: Measuring instrument Fixation screws Pluggable terminals for connection of inputs, aux. Power supply and I/O modules Short installation manual This document and settings software MiQen can also be found on our web page http://www.iskra.eu/. CAUTION Please examine the equipment carefully for potential damages which might arise during transport! Description of The MC784 Advanced Power Quality Analyser Description of the Quality Analyser MC774 Quality Analyser is a comprehensive device intended for permanent monitoring of power quality from its production (especially renewable), transmission, distribution to final consumers, who are most affected by insufficient quality of voltage. It is mostly applicable in medium and low voltage markets. Lack of information about supplied quality of voltage can lead to unexplained production problems and malfunction or even damage to equipment used in production process. Therefore, this device can be used for utility purposes (evaluation against standards) as well as for industial purposes (e.g. for monitoring supplied power quality). Appearance 1-Graphical LCD 2-Navigation keyboard 3-A slot with a cover for memory card 4-General operation LED indicators (card/com./alarm) 5-I/O status LED indicators Graphical LCD A graphical LCD with back light is used for high resolution of displayed measuring quantities and for a display of selected functions when setting the device. Navigation keyboard The "OK" key is used for confirming the settings, selecting and exiting the display. Direction keys are used for shifting between screens and menus. A slot with a cover Memory card A Quality Analyser is provided with a slot for a full size MMC or SD card that is used for data transfer from the internal memory, device setting and software upgrading. A slot protection cover for the card prevents penetration of humidity and dust into device. LED indicators There are two types of LED indicators positioned on the front panel. General operation LED indicators and I/O status LED indicators. General operation LED indicators warns of a certain state of the device. A left (red) indicator indicates the card activity and that it should not be pulled out. A middle (green) one is blinking when transmitting MC data via communication. A right (red) one is blinking when the condition for the alarm is fulfilled. I/O state LED indicators are in operation when additional Modules A and/or B are built in and they have functionality of Digital input or Relay output. They are indicating the state of a single I/O. Red LED is lit when: Relay output is activated Signal is present on Digital input Abbreviation/Glossary Abbreviations are explained within the text where they appear the first time. Most common abbreviations and expressions are explained in the following table: Term Explanation RMS Root Mean Square value Flash Type of a memory module that keeps its content in case of power supply failure Ethernet IEEE 802.3 data layer protocol MODBUS / DNP3 Industrial protocol for data transmission Memory card Multimedia memory card. Type MMC and SD supported. MiQen Setting Software for Iskra instruments PA total Power Angle calculated from total active and apparent power PAphase Angle between fundamental phase voltage and phase current PFphase Power factor, calculated from apparent and active power (affected by harmonics) THD (U, I) Total harmonic distortion MD Max. Demand; Measurement of average values in time interval FFT graphs Graphical display of presence of harmonics Harmonic voltage − harmonic Sine voltage with frequency equal to integer multiple of basic frequency InterHarmonic voltage − interharmonic Sine voltage with frequency NOT equal to integer multiple of basic frequency Flicker Voltage fluctuation causes changes of luminous intensity of lamps, which causes the so-called flicker RTC Real Time Clock Sample factor Defines a number of periods for measuring calculation on the basis of measured frequency Mp − Average interval Defines frequency of refreshing displayed measurements Hysteresis [%] Percentage specifies increase or decrease of a measurement from a certain limit after exceeding it. IRIG-B Serial Inter-range instrumentation group time code GPS Satellite navigation and time synchronisation system PO Pulse output module TI Tariff input module RO Relay output module BO Bistable alarm output module AO Analogue output module DI Digital input module PI Pulse input module AI Analogue input module WO Status (watchdog) module – for supervision of proper operation List of common abbreviations and expressions Description of the MC7X0 A measuring centre is used for measuring, analyzing and monitoring three phase electrical power network. Using the latest technologies and numerical methods we have reached high accuracy over a wide measuring range of voltage, current and integrated quantities. Appearance The device figure can differ from yours depending on the type. 1 - Graphical LCD 2 - Navigation keyboard 3 - A slot with a cover for memory card 4 - LED indicators Graphical LCD A graphical LCD with back light is used for high resolution of displayed measuring quantities and for a display of selected functions when setting the device. Navigation keyboard The "OK" key is used for confirming the settings, selecting and exiting the display. Direction keys are used for shifting between screens and menus. A slot with a cover for MMC or SD Memory card The device is provided with a slot for a full size MMC or SD card that is used for data transfer from the internal memory, device setting and software upgrading. A slot protection cover for the card prevents penetration of humidity and dust into device. LED indicators LED indicators warn of a certain state of the device. A left (red) indicator indicates the card activity and that it should not be pulled out. A middle (green) one is blinking when transmitting MC data via communication. A right (red) one is blinking when the condition for the alarm is fulfilled. Description of the MC3x0 A measuring centre is used for measuring, analysing and monitoring three phase electrical power network. Using the latest technologies and numerical methods we have reached high accuracy over a wide measuring range of current and integrated quantities. Appearance The meter figure can differ from yours depending on the type. 1 − Graphical LCD 2 − Navigation keyboard 3 − LED indicators Graphical LCD A graphical LCD with back light is used for high resolution of displayed measuring quantities and for a display of selected functions when setting the device. Navigation keyboard The "OK" key is used for confirming the settings, selecting and exiting the display. Direction keys are used for shifting between screens and menus. LED indicators LED indicators warn of a certain state of the instrument. A left (red) one is blinking as pulse output. A right (red) one is blinking when the condition for the alarm is fulfilled. Description of the MT440 Measuring transducer is intended for measuring, analyzing and monitoring single-phase or three-phase electrical power network. It measures RMS value by means of fast sampling of voltage and current signals, which makes instrument suitable for acquisition of transient events. A built-in microcontroller calculates measurements (voltage, current, frequency, energy, power, power factor, THD phase angles, etc.) from the measured signals. Appearance Measuring transducer can differ from yours depending on the type and functionality. 1 – Communication ports 2 – I/O modules 3 – Auxiliary supply 4 – Voltage inputs 5 – Current inputs 6 – Power ON LED Communication ports and LED indicators Serial communication can be connected by using screw-in connector (RS232 or RS485). USB can be connected through USB-mini type connector at the bottom of transducer. LED indicator is intended for POWER ON signaling (red LED). WARNING! USB communication port is provided with only BASIC insulation and can ONLY be used unconnected to aux. supply AND power inputs! I/O modules Four I/O module slots are intended for various I/O modules, which should be chosen at placing the order. Analog outputs, fast analog outputs, relay outputs (alarm, pulse, general-purpose digital outputs) and solidstate relay outputs (alarm, pulse, general-purpose digital outputs). Universal auxiliary supply Auxiliary supply is connected by two screw-in connectors. For safety purposes it is important that all wires are firmly fastened. Auxiliary supply is wide range (24 VDC – 300 VDC; 40 VAC – 276 VAC). Voltage inputs . Maximum value of input voltage is 600 VL-N (1000 VL-L). Current inputs allowed thermal value of input current is 15A (cont.). Description of the MT5X0 Measuring transducer is intended for measuring, analyzing and monitoring single-phase or three-phase electrical power network. It measures RMS value by means of fast sampling of voltage and current signals, which makes instrument suitable for acquisition of transient events. A built-in microcontroller calculates measurements (voltage, current, frequency, energy, power, power factor, THD phase angles, etc.) from the measured signals. Appearance Measuring transducer can differ from yours depending on the type and functionality. 1 – Communication ports and LED indicators 2 – I/O modules 3 – Auxiliary supply 4 – Voltage inputs 5 – Current inputs Communication ports and LED indicators Under the sliding, semitransparent cover are connectors for various communication types, which should be chosen at placing the order. Serial communication can be connected through DB9 connector (RS232 or RS485) or screw-in connector (RS485 only). Ethernet communication can be connected through standard RJ-45 type connector. USB can be connected through USB-B type connector. There is also additional communication port (RS485), which is intended for Remote display connection (RJ-11 type connector). Two LED indicators are intended for POWER ON signaling (red LED) and COMMUNICATION IN PROGRESS signaling (green LED blinking). I/O modules Four I/O module slots are intended for various I/O modules, which should be chosen at placing the order. Tariff inputs, digital inputs, digital outputs, analogue inputs, analogue outputs, pulse inputs, pulse outputs alarm outputs, and additional (COM2) communication port. Auxiliary supply Auxiliary supply is connected through three screw-in connectors. For safety purposes it is important that all three wires (Line, Neutral and Earth) are firmly connected. Auxiliary supply can be either LOW (19 VDC – 70 VDC; 48 VAC – 77 VAC) or HIGH (70 VDC – 300 VDC; 80 VAC – 276 VAC), which should be chosen at placing the order. Voltage inputs Each voltage input is connected to measuring circuit through in value of input voltage is 600 VL-N (1000 VL-L). Current inputs allowed thermal value of input current is 15A (cont.). Purpose and use of the device MC784 Advanced Power Quality Analyser performs measurements in compliance with regulatory requested standard EN 61000-4-30 and evaluates recorded parameters for analysis according to parameters defined in European supply quality standard EN 50160:2011. Moreover device stores measurements and quality reports in internal memory for further analysis over recorded measurements. From multiple devices installed on different locations, user can gain the overall picture of system behaviour. This can be achieved with regard to its accurate internal real time clock and wide range of synchronization sources support, which assure accurate, time-stamped measurements from dislocated units. All required measurements, weekly PQ reports and alarms can also be stored locally in an internal memory. Stored data can be then transferred to a memory card or accessed through communication for post analysis. The internal memory capacity enables storing of more than 170,000 variations of the measurements from the standard values, which enables finding eventual reasons for the problems in network. Limits and required quality in a monitored period can be defined for each monitored characteristic. The following characteristics are measured and recorded: Power Quality indices as defined by EN 50160 Phenomena PQ Parameters Frequency variations Frequency distortion Voltage variations Voltage fluctuation Voltage unbalance Voltage changes Rapid voltage changes Flicker Voltage events Voltage dips Voltage interruptions Voltage swells Harmonics & THD THD Harmonics Inter-harmonics Signalling voltage Purpose and use of measuring transducer The instrument is used for monitoring and measuring electric quantities of three-phase electrical power distribution system. The meter is provided with 32 program adjustable alarms, up to four different modules and communication. With the RS232/RS485 and USB communication, the meter can be set and measurements can be checked. The meter also functions as an energy counter (up to four energy counters), with the additional function of cost management by tariffs. Supported measurements Basic measurements Voltage U1, U2, U3 and U~ Current I1, I2, I3, In, It and Ia Active power P1, P2, P3, and Pt Reactive power Q1, Q2, Q3, and Qt Phase Apparent power S1, S2, S3, and St Power factor PF1, PF2, PF3 and PF~ Power angle φ1, φ2, φ3 and φ~ THD of phase voltage Uf1, Uf2 and Uf3 THD of power angle I1, I2 and I3 Phase-to-phase voltage U12, U23, U31 Phase-to-phase Average phase-to-phase voltage Uff Phase-to-phase angle φ12, φ23, φ31 THD of phase−to−phase voltage Counter 1 Counter 2 Energy Counter 3 Counter 4 Active tariff Other measurements Phase current I1, I2, I3 Active power P (Positive) MD values Active power P (Negative) Reactive power Q − L Reactive power Q − C Apparent power S Other measurements Measurements Frequency Internal temperature Purpose and use of different types of MC7X0 Multifunction meter MC740 / UMC740 The device is used for monitoring and measuring electric quantities of three-phase electrical power distribution system. It is provided with 32 programmable alarms, up to four input or output modules and communication. With the RS232/RS485 or Ethernet/USB communication, the device can be set and measurements can be checked. The device also functions as an energy counter, with the additional function of cost management by tariffs. A tariff input or a tariff clock can be set. At tariff clock setting, four seasons and four day groups as well as energy cost for each period and a day group (16 different cost periods) are available. Additionally, 20 places are available for setting holidays. As an energy counter it can record energy in all four quadrants in four tariffs. Network recorder MC750 / UMC750 The device is used for monitoring, measuring and recording measurements of electric quantities of electrical power distribution system. Up to 64 measurements and up to 32 alarms are recorded in the internal memory. The memory is separated into four sections for measurements (A, B, C and D) and one section for recording alarms. The memory division is defined by the user via communication or a memory card. Network analyzer MC760 / UMC760 The device is used for permanent analysis of electricity supply quality in compliance with the EN 50160 standard. A partition in the internal memory is reserved for storing reports for a period of the last seven years. The internal memory capacity enables storing of more than 170,000 variations of the measurements from the standard values, which enables finding eventual reasons for the problems in network. Limits and required quality in a monitored period can be defined for each monitored characteristic. The following characteristics are measured and recorded: -Frequency variations -Voltage variations -Voltage unbalances -Voltage dips -Voltage interruptions -Rapid voltage changes -Flickers Pst & Plt -Temporary over voltages -THD's -Harmonics Purpose and use of different types of MC3X0 Energy meter MC320 The instrument is used for monitoring and measuring electric quantities of electrical power system. As the energy counter, instrument records energy in all four quadrants in four tariffs. Two different modules that are optionally built in two module places in the meter are available for controlling measurements. Available is one input and one output module. Multifunction meter MC330 The instrument is used for monitoring and measuring electric quantities of three-phase electrical power distribution system. The meter is provided with 16 program adjustable alarms, Configuration can have one input, one output modules and communication module (RS232 or RS485 or USB). With the communication meter can be set and measurements can be checked. The meter also functions as an energy counter with tariffs. As an energy counter it can record energy in all four quadrants in four tariffs. Different modules that are optionally built in two module places in the meter are available for controlling measurements. Available is one input and one output module. Recorder MC350 The instrument is used for monitoring and measuring electric quantities of electrical power system. It includes all functionality of MC330 and as addition it has 8Mb of flash memory built in. So it's additional functionality is that it measures and stores selected measured quantities and alarms in to recorder, where they are available for further analysis. At tariff clock setting, four seasons and four day groups are available. Additionally, 20 places are available for setting holidays. As an energy counter it can record energy in all four quadrants in four tariffs. Purpose and use of different types of measuring transducer Multifunction transducer MT540 / UMT540 The instrument is used for monitoring and measuring electric quantities of three-phase electrical power distribution system. The meter is provided with 32 program adjustable alarms, up to four input or output modules and communication. With the RS232/RS485, Ethernet or USB communication, the meter can be set and measurements can be checked. The meter also functions as an energy counter, with the additional function of cost management by tariffs. A tariff input or a tariff clock can be set. At tariff clock setting, four seasons and four day groups as well as energy cost for each period and a day group (16 different cost periods) are available. Additionally, the instrument can store up to 20 holidays. As an energy counter it can record energy in four tariffs in all four quadrants of the load power diagram. Network recorder MT550 / UMT550 The instrument is used for monitoring, measuring and recording measurements of electric quantities of electrical power distribution system. The (U)MT550 measure all parameters like (U)MT540 and up to 32 measurements and up to 32 alarms could be recorded in the internal memory. The memory is separated into two sections for measurements (A and B) and one section for recording alarms. The memory division is defined by the user via communication. Network analyzer MT560 / UMT560 The instrument measure all parameters like (U)MT550 and is used also for permanent analysis of electricity supply quality in compliance with the SIST EN 50160 standard. A partition in the internal memory is reserved for storing reports for a period of the last seven years. The internal memory capacity enables storing of more than 170,000 variations of the measurements from the standard values, which enables finding eventual reasons for the problems in network. Limits and required quality in a monitored period can be defined for each monitored characteristic. The following characteristics are measured and recorded: -Frequency variations -Voltage variations -Voltage unbalances -Voltage dips -Voltage interruptions -Rapid voltage changes -Flickers Pst & Plt -Temporary overvoltages -THD's -Harmonics Remote display RD500 Remote display is very useful for a quick look-up to all measured parameters or to set up the (U)MT5xx measuring transducers without the PC. A graphical display with the resolution of 128x64 enables graphical representation of signals and parameters. With five select buttons it is possible to browse through the userfriendly menu. Main Features, supported options and functionality MC784 Advanced Power Quality Analyser is a perfect tool for monitoring and analysing medium or low voltage systems in power distribution and industrial segments. It can be used as a standalone PQ monitoring device for detection of local PQ deviations. For this purpose it is normally positioned at the point-of-common-coupling (PCC) of small and medium industrial and commercial energy consumers to monitor quality of delivered electric energy or at medium or low voltage feeders to monitor, detect and record possible disturbances caused by (unauthorized) operation of consumers. User can select different hardware modules that can be implemented in device. Wide range of variants can cover practically every user’s requirements. MC784 Advanced Power Quality Analyser is a compact, user friendly and cost effective device that offers various features to suit most of the requirements for a demanding power system management: PQ analysis in compliance with EN 50160 with automatic report generation High accuracy in compliance with Class A (0.1%) EN61000-4-30 Measurements of instantaneous values of more than 140 quantities including harmonics, flicker, power line signalling voltage, unbalance… Four quadrant energy measurement with class 0.2S for active energy, 8 programmable counters, up to four tariffs, tariff clock… Recording all measured parameters including all voltage and current harmonics up to 65 th, 32 adjustable alarms, anomalies and quality reports in the internal memory Automatic range selection of 4 current and 4 voltage channels (max. 12.5 A and 1000 Vrms) with 32 kHz sampling rate MODBUS and DNP3 communication protocols Support for effective sub metering applications (comprehensive counters settings, tariff and cost management) Support for GPS, IRIG-B (modulated and digital) and NTP real time synchronisation Up to 20 inputs and outputs Multilingual support User-friendly setting and evaluation software, MiQen CE certification General hardware Features Default / Optional General Class A measuring accuracy according to EN 61000-4-30 Voltage auto range up to 1000Vp-pRMS Current auto range up to 12.5 A 4 voltage and 4 current channels with 32 us sampling time Universal power supply type High or type Low Two independent communication ports (see data below) Support for GPS, IRIG-B and NTP real time synchronisation Up to 20 additional inputs and outputs (see data below) Internal flash memory (8MB) Real time clock (RTC) standard 144 mm DIN square panel mounting Front panel Graphical LCD display with back light LED indicator (card/com./alarm) I/O status LED indicator SD memory card slot for data transfer Control keys on front panel (5 keys) Communication COM1: Ethernet +USB / USB / Serial (RS232/485) COM2: Serial (RS232/ RS485 on slot C if other synchronisation modes are in use) ● ○ − Function is supported (default) − Optional (to be specified with an order) General hardware Features Default / Optional Input and output modules Input / output module 1 2×AO / 2×AI / 2×RO / 2×PO / 2×PI / 2×TI / 1×BO / 2×DI / WO+RO Input / output module 2 2×AO / 2×AI / 2×RO / 2×PO / 2×PI / 2×TI / 1×BO / 2×DI / WO+RO Auxiliary input / output module A I/O A (1-8) DI / RO Auxiliary input / output module B I/O B (1-8) DI / RO Synchronisation module C ○/○/○/○/○/○/○/○/○ ○/○/○/○/○/○/○/○/○ ○/○ ○/○ I/O C GPS + 1pps / IRIG-B / COM2 ● ○ Function is supported (default) Optional (to be specified with an order) PO TI RO BO AO DI PI AI WO Pulse output module Tariff input module Relay output module Bistable relay output module Analogue output module Digital input module Pulse input module Analogue input module – U, I or R (PT100/1000) Status (watchdog) module – for supervision of proper operation General software Features Setup wizard Wrong connection warning Custom screen settings (3 user defined screens on LCD) ●/●/● Default / optional ● ● ● ● ● ● ● ●/○ ○ ●/●/○ ○ ● ● ● ● ● ● ● ● ●/○/○ ● Demonstration screen cycling Programmable refresh time MODBUS and DNP3 communication protocols Tariff clock MD calculation (TF, FW, SW) Wide frequency measurement range 16 – 400 Hz Programmable alarms (32 alarms) Alarms recording Measurements recording (128 quantities) Measurements graphs (time / FFT) Evaluation of voltage quality in compliance with EN 50160 Real time clock synchronisation (GPS/IRIG-B/NTP) ● ● ● ● ● ● ● ● ● ● ● ● Type differences MC7X0 Different types differ on functionality and equipment as shown in the following table. User can select different hardware modules that can be implemented in device. By selection of right device and module combination practically every user’s demand can be cowered. Differences in hardware MC740 MC750 MC760 UMC740 UMC750 UMC760 Graphical LCD display Back light of LCD display LED indicator (card/com./alarm) // // // Slot for card Control keys on front panel (5) Internal flash memory 8Mb 8Mb Real time clock (RTC) / / / Feature Communication interface RS232 and RS485 or Ethernet/USB I/O 1 AO/AI/AL/PO/PI/TI/DO/DI/WD I/O 2 AO/AI/AL//PO/PI/TI/DO/DI/- I/O 3 AO/AI/AL/COM2/COMEX/PO/PI/TI/DO/DI/WD I/O 4 AO/AI/AL/COM2/COMEX/PO/PI/TI/DO/DI/- Automatic current range AC or universal supply / / / - serial - option - not supported Software functions Basic Functions MC750 MC760 UMC740 UMC750 UMC760 Setup wizard Wrong connection warning Custom screens (3) Demonstration screen cycling Programmable refresh time // // // Programmable alarms (32) Alarms recording Measurements recording / / / MODBUS and DNP3 protocols Tariff clock MD calculation (TF, FW, SW) Additional MC740 Measurements graphs (time/FFT) Evaluation of voltage quality in compliance with EN 50160 - serial - not supported Supported measurements Energy Phase-to-phase Phase Basic measurements MC740 MC750 MC760 UMC740 UMC750 UMC760 Voltage U1, U2, U3 and U~ Current I1, I2, I3, In, It and Ia Active power P1, P2, P3, and Pt Reactive power Q1, Q2, Q3, and Qt Apparent power S1, S2, S3, and St Power factor PF1, PF2, PF3 and PF~ Power angle φ1, φ2, φ3 and φ~ THD of phase voltage Uf1, Uf2 and Uf3 THD of power angle I1, I2 and I3 Phase-to-phase voltage U12, U23, U31 Average phase-to-phase voltage Uff Phase-to-phase angle φ12, φ23, φ31 Voltage unbalance Uu THD of phase-to-phase voltage Counter 1 Counter 2 Counter 3 Counter 4 Total Active tariff Cost by counters Total cost - serial - not supported Supported measurements MD values Min / Max Other measurements MC740 MC750 MC760 UMC740 UMC750 UMC760 Voltage U1, U2, U3 Phase-to-phase voltage U12, U23, U31 Phase current I1, I2, I3 Active power P1, P2, P3, P Apparent power S1, S2, S3, S Frequency f Internal temperature Phase current I1, I2, I3 Active power P (Positive) Active power P (Negative) Reactive power Q − L Measurement Reactive power Q − C Apparent power S Frequency Internal temperature Date & Time Time graphs (I1, I2, I3,U1, U2, U3, U12, U23 and U31) FFT graphs (I1, I2, I3,U1, U2, U3, U12, U23 and U31) Phase voltage harmonics Phase-to-phase voltage harmonics Current harmonics Flicker (Pst, Plt, Pi, Pim) Analysis in compliance with EN 50160 - serial Harmonics up to - not supported 63rd Flicker Pi and Pim on display only. Type differences MC3X0 Different types differ on functionality and equipment as shown in the following table. Differences in hardware Feature MC320 MC330 MC350 Graphical LCD display ● ● ● Back light of LCD display ● ● ● ●/× ●/● ●/● ● ● ● LED indicator (pulse/alarm) Control keys on front panel (5) Communication interface RS232 or RS485 or USB ○ ● ○ Module 1 (2S0/2RO) ○/× ○/○ ●/○ Module 2 (2TI/2DI) ○/× ○/○ ●/○ Automatic voltage range ○ ○ ● Automatic current range ● ● ● ●/○ ●/○ ○/● Real time clock (RTC) with tariff clock × × ● 8MB flash memory for recorder and alarm × × ● AC or universal supply ● – serial ○ – option × − not supported Software functions Basi c Functions Setup wizard MC320 MC330 MC350 ● ● ● Additional Wrong connection warning ● ● ● Custom screens (3) × ● ● Demonstration screen cycling ● ● ● Programmable refresh time ● ● ● MODBUS and DNP3 protocol MD calculation (TF) Programmable alarms (16) ● × ● ● ● ● × ● ● ● – serial × − not supported Supported measurements Energy Phase-to-phase Phase Basic measurements MC320 MC330 MC350 Voltage U1, U2, U3 and U~ × ● ● Current I1, I2, I3, In, It and I~ × ● ● Active power P1, P2, P3, and Pt × ● ● Reactive power Q1, Q2, Q3, and Qt × ● ● Apparent power S1, S2, S3, and St × ● ● Power factor PF1, PF2, PF3 and PF × ● ● Power angle φ1, φ2, φ3 and φ × ● ● THD of phase voltage U1, U2 and U3 × ● ● THD of power angle I1, I2 and I3 × ● ● Phase-to-phase voltage U12, U23, U31 × ● ● Average phase-to-phase voltage Uff × ● ● Phase-to-phase angle φ12, φ23, φ31 × ● ● THD of phase−to−phase voltage × ● ● Counter 1 ● ● ● Counter 2 ● ● ● Counter 3 ● ● ● Counter 4 ● ● ● Total ● ● ● Active tariff ● ● ● ● – serial MD values Other measurements × − not supporte MC320 MC330 MC350 Phase current I1, I2, I3 × ● ● Active power P (Positive) × ● ● Active power P (Negative) × ● ● Reactive power Q − L × ● ● Reactive power Q − C × ● ● Apparent power S × ● ● ● – serial (thermal function) × − not supported Other measurements MC320 MC330 MC350 Frequency × ● ● Internal temperature ● ● ● ● – serial × − not supported Type differences MT5X0 Different types differ on functionality and equipment as shown in the following table. Differences in hardware Feature MT540 UMT540 MT550 UMT550 MT560 UMT560 RD500 Internal flash memory × 8Mb 8Mb × Real time clock (RTC) with battery ● ● ● × ●/○/○ ●/○/○ ●/○/○ RS485 Communication interface RS232 and RS485 / Ethernet / USB I/O 1 AO/AI/AL/COM2/PO/PI/TI/DO/DI ○/○/○/×/○/○/○/○/○ ○/○/○/×/○/○/○/○/○ ○/○/○/×/○/○/○/○/○ × I/O 2 AO/AI/AL/COM2/PO/PI/TI/DO/DI ○/○/○/×/○/○/○/○/○ ○/○/○/×/○/○/○/○/○ ○/○/○/×/○/○/○/○/○ × I/O 3 AO/AI/AL/COM2/PO/PI/TI/DO/DI ○/○/○/×/○/○/×/○/○ ○/○/○/×/○/○/×/○/○ ○/○/○/×/○/○/×/○/○ × I/O 4 AO/AI/AL/COM2/PO/PI/TI/DO/DI ○/○/○/○/○/○/×/○/○ ○/○/○/○/○/○/×/○/○ ○/○/○/○/○/○/×/○/○ × Automatic voltage / current range ●/● ●/● ●/● ×/× Universal power supply LO / HI ○/○ ○/○ ○/○ × Universal power supply × × × ● Graphical LCD display × × × ● LED indicator: Power/Comm./Alarm ●/●/× ●/●/× ●/●/× ×/●/● Control keys on front panel (5) × × × ● ● – serial ○ – option × − not supported AO-analogue out, AI-analogue in, AL-alarm/digital out, PO -pulse out, PI-pulse in, TI-tariff in, DOdigital out, DI-digital in, COM2-additional communication port Software functions Basic Functions MT540 MT550 MT560 UMT540 UMT550 UMT560 RD500 MODBUS and DNP3 protocols ● ● ● × Tariff clock ● ● ● × MD calculation (TF, FW, SW) ●/●/● ●/●/● ●/●/● ×/×/× Programmable alarms (32) ● ● ● × Alarms recording × ● ● × Remote Measurements recording × ● ● × Measurements graphs (time/FFT) ●/●* ●/●* ●/● ×/× Evaluation of voltage quality in compliance with EN 50160 × × ● × Setup wizard × × × ● Wrong connection warning × × × ● Custom screens (3) × × × ● Demonstration screen cycling × × × ● Programmable refresh time × × × ● ● – serial × − not supported * (U)MT540 & (U)MT550 support harmonic analysis up to 31st harmonic, (U)MT560 up to 63rd Supported measurements Energy Phase-to-phase Phase Basic measurements MT540 MT550 MT560 UMT540 UMT550 UMT560 Voltage U1, U2, U3 and U~ ● ● ● Current I1, I2, I3, In, It and Ia ● ● ● Active power P1, P2, P3, and Pt ● ● ● Reactive power Q1, Q2, Q3, and Qt ● ● ● Apparent power S1, S2, S3, and St ● ● ● Power factor PF1, PF2, PF3 and PF~ ● ● ● Power angle φ1, φ2, φ3 and φ~ ● ● ● THD of phase voltage Uf1, Uf2 and Uf3 ● ● ● THD of power angle I1, I2 and I3 ● ● ● Phase-to-phase voltage U12, U23, U31 ● ● ● Average phase-to-phase voltage Uff ● ● ● Phase-to-phase angle φ12, φ23, φ31 ● ● ● Voltage unbalance Uu ● ● ● THD of phase−to−phase voltage ● ● ● Counter 1 ● ● ● Counter 2 ● ● ● Counter 3 ● ● ● Counter 4 ● ● ● Total ● ● ● Active tariff ● ● ● Cost by counters ● ● ● Total cost ● ● ● ● – serial × − not supported MD values Min / Max Other measurements MT540 MT550 MT560 UMT540 UMT550 UMT560 Voltage U1, U2, U3 ● ● ● Phase-to-phase voltage U12, U23, U31 ● ● ● Phase current I1, I2, I3 ● ● ● Active power P1, P2, P3, P ● ● ● Apparent power S1, S2, S3, S ● ● ● Frequency f ● ● ● Internal temperature ● ● ● Phase current I1, I2, I3 ● ● ● Active power P (Positive) ● ● ● Active power P (Negative) ● ● ● Reactive power Q − L ● ● ● Reactive power Q − C ● ● ● Apparent power S ● ● ● ● – serial × − not supported Measurement Other measurements MT540 MT550 MT560 UMT540 UMT550 UMT560 Frequency ● ● ● Internal temperature ● ● ● Date & Time ● ● ● Time graphs (I1, I2, I3,U1, U2, U3, U12, U23 and U31) ● ● ● FFT graphs (I1, I2, I3,U1, U2, U3, U12, U23 and U31) ● ● ● Phase voltage harmonics ●* ●* ● Phase−to−phase voltage harmonics ●* ●* ● Current harmonics ●* ●* ● Analysis in compliance with SIST EN 50160 × × ● ● – serial × − not supported *Harmonics up to 63 r d