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| Panel Meters and Controllers om Energy meters Power Analyzers and .c Type EM2-DIN, Energy Meter U w w ta a D . w he S t4 e * 6-dgt P-based indicator * Manual scrolling of partial and total energies: kWh, kVArh. * TRMS measurement of distorted waves (voltage/current) * All configuration functions selectable by built-in key-pad * Password protection of programming parameters * Front reset of partial energies * Degree of protection (front): IP 40 * Optional serial RS 422/485 output (provided with control relay) * MODBUS, JBUS protocol. Product Description P-based energy meter with a built-in configuration keypad. The energies are both partial and total counted. The housing is easy to mount on DIN-rail and ensures a degree of protection (front) of IP 40. Ordering Key Model Range code Measurement Power supply Output Type Selection Range code AV5: 250/433 VAC - 5 AAC (max. 300 V (L-N)/ 520 V (L-L) - 6 A) Measurement 3: One phase, three-phase system, 3 or 4 wires, balanced load; three phase system, 3 or 4 wires, unbalanced load 1) On request Input Specifications Accuracy (48 to 62 Hz) (@ 25C 5C, R.H. 60%) Additional errors Humidity Power supply Magnetic field Rated input Current w w w t a .D S a e h A: B: C: D: Power supply U t4 e .c EM2-DINAV53D XX m o Output XX: XS: No output (standard) Serial output, RS 485 multidrop bidirectional with control relay 1) 24 VAC, -15% +10%, 50/60 Hz 1) 48 VAC, -15%+10%, 50/60 Hz 1) 115 VAC, -15% +10%, 50/60 Hz 1) 230 VAC, -15% +10%, 50/60 Hz (standard) 1% rdg (hour time base): <0.3% f.s., 60% to 90% R.H. 0.5% RDG, -15 +10% p.s. < 0.1% f.s. @ 400 A/m Temperature drift Display Decimal point position 250 ppm/C Backlighted LCD, h: 13mm, 6-dgt Automatic selection according to the counted energy. Max resolution: 1 Wh/1 VArh Min. resolution: 1 KWh/1 KVArh Max. 999999 min. -199999 Max. 999999 min. 0 3 times / second Voltage Insulation 2 inputs (one/three-phase balanced load) 6 inputs (one/three-phase unbalanced load) 2 inputs (one/three-phase balanced load) 4 inputs (one/three-phase unbalanced load) among the voltage and the current inputs: 2000 Vrms; among the current inputs: 2000 Vrms Max. and min. indication Active energy Reactive energy Sampling rate Specifications are subject to change without notice (26.10.99) w w w .D a aS t ee h 4U t om .c 1 EM2-DIN Input Specifications (cont.) Measurements Total energies Partial energies Measurement method Keyboard kWh, kVArh kWh, kVArh TRMS measurement of a distorted voltage/current wave Coupling type: Direct Crest factor: 3 250 V/433 V (1 M) 5 AAC ( 0.3 VA / 0.1) 48 to 62 Hz 1.2 x rated input 2 x rated input 20 x rated input 4 keys: "": - to enter programming phase and password confirmation; - for value programming and basic measurement scrolling. "L": - for confirmation of new programmed values and going ahead to the next programming step, - total or partial energy scrolling. "R": - for the reset of the partial counted active and/or reactive energy. Ranges (impedances) Frequency range Over-load protection Continuous: voltage/current For 1 s Voltage: Current: Output Specifications Relay output (only with RS485 output) Type Contact Rating Insulation Data (bidirectional) Dynamic (reading only) Driven only by the serial communication 1 x SPST (normally open) 2 A, 250 VAC/DC, 40 W/1200 VA 130.000 cycles By means of optocouplers, 4000 Vrms output to measuring input, 4000 Vrms output to supply input. RS422/RS485; Multidrop bidirectional (static and dynamic variables) 2 or 4 wires, max. distance 1200 m, termination and/or line bias by means of DIPswitches directly on the instrument 255, selectable by key-pad MODBUS/JBUS System variables: P, Q, cos , VL-L, energies, Single phase variables: PL1, QL1, Cos L1, VL1-N, IL1, PL2, QL2, Cos L2, VL2-N, IL2, PL3, QL3, Cos L3, VL3-N, IL3 For the accuracy information refer to WM2-DIN All programming data, reset of energy: - partial kWh - partial kVArh - total kWh - total kVArh Stored energy (EEPROM) 999999 kWh 999999 kVArh 1-start bit, 8-data bit, no parity/even parity, 1 stop bit 1200, 2400, 4800 and 9600 selectable bauds By means of optocouplers, 4000 Vrms output to measuring inputs 4000 Vrms output to supply input Static (writing only) Serial output (on request) Type Connections Data format Baud-rate Insulation Adresses Protocol 2 Specifications are subject to change without notice (26.10.99) EM2-DIN Software Functions Password 1st level 2nd level Measurement scrolling Numeric code of max. 3 digits; 2 protection levels of the programming data Password "0", no protection Password from 1 to 255, all data are protected total and partial active energy (kWh), total and partial reactive energy (kVArh) For CT up to 5000 A Programmable ratio Digital Filter Filter operating range Filtering coefficient Filter action 0.1 to 999.9 0 to 100% of the input electrical scale 1 to 64 Only on the variable being transmitted by the serial communication port Transformer ratio Supply Specifications AC voltage 230 VAC (standard), -15%+10% 50/60 Hz 24 VAC, 48 VAC, 115 VAC (on request), -15%+10% 50/60 Hz Power consumption 7 VA General Specifications Operating temperature Storage temperature Insulation reference voltage Insulation Dielectric strength Noise rejection CMRR EMC 0 to +50C (32 to 122F) (R.H. < 90% non-condensing) -10 to +60C (14 to 140F) (R.H. < 90% non-condensing) 300 Vrms to ground 4000 Vrms between all inputs/ outputs to ground 4000 Vrms for 1 minute 100 dB, 48 to 62 Hz EN 50 081-2, EN 50 082-2 Safety standards Connector Housing Dimensions Material Degree of protection Weight IEC 1010-1, EN 61010-1 Screw-type, max. 2.5 mm2 wires 6 DIN modules, 58.5 x 89 x 107 mm ABS, self-extinguishing: UL 94 V-0 Front: IP40 Approx. 500 g (packing included) Specifications are subject to change without notice (26.10.99) 3 EM2-DIN Mode of Operation Waveform of the signals that can be measured Figure G Sine wave, undistorted Fundamental content 100% Harmonic content 0% 1.1107 I A | Arms = Figure H Sine wave, indented Fundamental content 10...100% Harmonic content 0...90% Frequency spectrum 3rd to 16th harmonic Required result: additional error < 1% Figure I Sine wave, distorted Fundamental content 70...90% Harmonic content 10...30% Frequency spectrum 3rd to 15th harmonic Required result: additional error < 0.5% Wiring Diagrams Single phase input connections Fig. 2 Fig. 1 1 3 56 8 9 10 11 1 3 56 8 9 10 11 12 13 15 16 17 18 20 22 24 26 12 13 15 16 17 18 20 22 24 26 L N L N Direct connection CT connection Three phase/3-wire input connections - Balanced loads Fig. 3 Fig. 4 1 3 56 8 9 10 11 1 3 56 8 9 10 11 12 13 15 16 17 18 20 22 24 26 12 13 15 16 17 18 20 22 24 26 L1 L2 L3 L1 L2 L3 Direct connection (3-wire system) CT connection (3-wire system) 4 Specifications are subject to change without notice (26.10.99) EM2-DIN Wiring Diagrams (cont.) Three phase, 4-wire input connections - Balanced loads Fig. 5 Fig. 6 1 1 3 56 8 9 10 11 3 56 8 9 10 11 12 13 12 13 15 16 17 18 20 22 24 26 15 16 17 18 20 22 24 26 L1 L2 L3 N L1 L2 L3 N Direct connection (4-wire system) CT connection (4-wire system) Three-phase, 3-wire input ARON connections - Unbalanced load Fig. 7 Fig. 8 1 3 56 8 9 10 11 1 3 56 8 9 10 11 12 13 15 16 17 18 20 22 24 26 12 13 15 16 17 18 20 22 24 26 L1 L2 L3 L1 L2 L3 CT connection (3-wire system) Direct connection (3-wire system) Three phase, 4-wire input connections - Unbalanced load Fig. 9 Fig. 10 1 1 3 56 8 9 10 11 3 56 8 9 10 11 12 13 12 13 15 16 17 18 20 22 24 26 15 16 17 18 20 22 24 26 L1 L2 L3 N L1 L2 L3 N Direct connection (4-wire system) CT connection (4-wire system) Specifications are subject to change without notice (26.10.99) 5 EM2-DIN Front Panel Description 4 - To increase or decrease programming values - To enter into the programming procedure and select programming functions together with the "L" key "L": To select the partial or total counted energy "R": To reset the partial counted energies (kWh, kVArh). 2. Display - 6-digit (maximum read-out 999999). Alphanumeric indication by means of LCD display for: - Displaying the configuration parameters - All the measured variables. 3. Connection terminal blocks 1. Key-pad Set-up and programming procedures are easily controlled by the 4 pushbuttons. " " and " " - To scroll all the basic measurements (system variables) 4. Dip-switch - For the selection of 2/4 wire connection, line biasing and/or line termination (only in case of RS 485 option) CARLO GAVAZZI 1 L3 KWh TOT KVArh R L 2 L1 L2 EM 2 -D I N EN ERGY M ETER 3 Sequence of the variables on the display kWh total L L kWh partial kVARh total L L kVARh partial Terminal boards Upper terminal board Lower terminal board Dimensions 89 mm 108 mm 45 mm R L 107 mm 49.5 mm 58.5 mm 6 Specifications are subject to change without notice (26.10.99) 90 mm |
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