A20 Digital Energy Meter

A20 Energy meter

AMPTRON

Auto ranging Total onload hour True RMS measurement Slim & tropicalize designed 4 digital password Protection Interface (Modbus RTU Protocal) Energy Amount still even power failure State of Art Microcontroller Based Design Total hamonic distortion Voltage and Current Site programmable CT ratio (Primary & Secondary) Site programmable PT ratio (Primary & Secondary) 1 Line 8 Digital ultra bright LED display for Energy 1 Line 4 Digital ultra LED display for other parameters

AI A20

DESCRIPTION

FEATURES

A20 as in telligent digital energy meter for monitoring, consumption in alter nating current systems. its compact, rugged design allows for universal imple mentation in industrial systems, at construction sites, in the office, at leisure facilities and in the household acquisition of energy data, as a well as targeted billing of energy costs A20 can used as data gathering device for an interiligent power distribution automation system or a plant automation system that integrates process, instrument and electrical values over RS-485 communication ports

METERING ELECTRICAL : : : : : : : : : : :

Voltage Current Active Power Reactive Power Apparent Power Frequency Power Factor Active Energy Harmonics THD Harmonics THD Load Hour

Vn-1, Vn-2, Vn-3, V12, V23, V31 I1, I2, I3 P1, P2, P3 Q1, Q2, Q3 S1, S2, S3 System PF1, PF2, PF3 kWh Volts – THD U1, THD U2, THD U3 Amps – THD I1, THD I2, THD I3 Hour

• • • • • • • • • • • • •

State of Art Microcontroller Based Design 1 Line 8 Digital ultra bright LED display for Energy 1 Line 4 Digital ultra LED display for other parametes Site programmable CT ratio (Primary & Secondary) Site programmable PT ratio (Primary & Secondary) True RMS measurement 4 digital password Protection Slim & tropicalize designed RS485 Computer Interface (Modbus RTU Protocal) Energy Amount still even power failure Total hamonic distortion Voltage and Current Auto ranging Total onload hour

SPECIFICATIONS Input Volts Amps Burden Aux.Supply Display

PRECISION LEVEL : : : : : : : :

Accuracy

Voltage Current Active Power Reactive Power Apparent Power Power Factor Frequency Active Energy

0.5 % of F.S. + 2 Digit 0.5 % of F.S. + 2 Digit 0.5 % of F.S. + 2 Digit 0.5 % of F.S. + 2 Digit 0.5 % of F.S. + 2 Digit 0.5 % of F.S. + 2 Digit 0.1% for Hz Class1.0 IEC 61036

WIRING DIAGRAM - BEZEL

Display update Resolution Frequency Ambient Storage Humidity Weight Dimensions Panel Cutout Mounting Protecttion Insulation Standard Comply

20 19 18 17 16 15 14 13 12 11 A B G P N Aux Supply 60-270 Vac/dc

RS485

60x60 mm

: 3 Phase 4 wire /1 phase 2 wire : Range 10- 550VAC L - L 8 digits programmable PT Primary and Secondary : 0.015 - 6.0 Amps, 8 digitals Programmable CT/5A and CT/1A : 0.2 VA max. per input for Voltage & Current Singnals 60-270 V AC/DC 3VA max. on Aux. Supply : 1 Line x 8 digits 0.39 Lnches 7 Segment LED Display 1 Line x 4 digits 0.39 Lnches 7 Segment LED Display : 1 Sec : 0.1 kWh for Energy , Auto ranging for all other parameters : 45 ... 62Hz. : -10 ... 55°C : -20 ... 75°C : < 95 % Non-comdensing : < 250 grams without packing : < 96 x 96 x 60 mm : ( 90+1)mm x (90+1)mm : Flush Mounting with side clamps : IP54 front panel, IP20 : 2500V AC input - output, 500M I/O and case : IEC870, ANSIC12.16, IEC61036, IEC1268 : IEC61557-2 : CAT III, for distribution systems up to 277 V Ph-N / 480 VAC Ph-Ph

Aux Supply 60-270 Vac/dc

COMMUNICATION

90x90 mm 1 2 3 4 5 6 7 8 9 10 S2 S1 S2 S1 S2 S1 R Y B N

L1 L2 L3 N

RS 485 Industrial standard Modbus™ protocal photo isolated 2500V rms, 250msec response time recommendation max 4000ft. between host and meters with speed 9600 baud rate

ORDERING INFO A20, Digital KWH Meter I/P 500V CT5A Modbus™ RS485 Size 96x96 mm Aux supply 60-270V AC/DC

Panel Cutout 90x90 AMPTRON INSTRUMENTS (THAILAND) CO.,LTD. AMPTRON

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66-2809-5588

66-2809-5599

[email protected]

www.amptronth.com