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AHM3-SMTP AHM3RC-SMTP
Multifunction Power Meter

User Manual

VER

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V18A

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Summary of Contents for AHM3-SMTP

Page 1: ...1 AHM3 SMTP AHM3RC SMTP Multifunction Power Meter User Manual VER V18A...

Page 2: ...LITY 9 DEMAND 11 MAX MIN 12 MEMORY MODULE DM1 15 ANALOGUE INPUT MODULES DM2 DM3 DM4 15 ANALOGUE OUTPUT MODULE DM5 16 COMMUNICATION 19 3 INSTALLATION 20 4 OPERATION 24 DISPLAY 24 SETUP BUTTON 25 SETUP...

Page 3: ...The input polarity of the voltage or the current is wired improperly 2 Description General This series multifunction power meters are designed to be used for the measurement and calculation of electri...

Page 4: ...y outputs DM2 2 analog inputs mA DM9 1 AC digital input DM3 2 analog inputs PT100 DM10 Profibus DP V0 DM4 2 analog inputs J K E or N DM11 Ethernet Modbus TCP Web Server DM5 2 analog outputs mA DM12 WI...

Page 5: ...n Demand sum unit V1 V2 V3 V kV V12 V23 V31 V kV I1 I2 I3 A kA F Hz P P1 P2 P3 kW MW GW Q Q1 Q2 Q3 kvar Mvar Gvar S S1 S2 S3 kVA MVA GVA PF PF1 PF2 PF3 EP EP kWh MWh GWh EQ1 EQ2 EQ3 EQ4 kvarh Mvarh Gv...

Page 6: ...er supports excellent energy metering functions as follows Bi direction energy metering Four quadrant reactive energy metering Tariff energy metering TOU Spare energy metering All the values of energy...

Page 7: ...21 369kWh EP 0kWh EQ 3647 2kvarh EQ 0kvarh Reactive Quadrant 2 2 MENU Q1 kvarh 00567 500 Q2 kvarh 00000 000 Q3 kvarh 00000 000 Q4 kvarh 01785 600 Four quadrant reactive energy 1st quadrant Q1 567 5kva...

Page 8: ...ports harmonic content of grid Detailed functions are as follows Harmonic RMS 2 63th Fundamental Bar graph Total Harmonic 3 1 MENU 2 3 THDU 1 THDI 010 5 015 5 008 5 009 5 006 5 003 5 THDV1 9 5 THDV2 6...

Page 9: ...ee phase voltage and current Harmonic Spectrum U 3 2 0 MENU 60 20 01 100 02 04 06 08 10 Bar graph of harmonic content of three phase voltage Bar graph of each harmonic shows V1 V2 and V3 from left to...

Page 10: ...nt 1 2 3 correspond to I1 I2 I3 2 Phase angle of voltage and current Phase angle of voltage and current of each phase is displayed directly Phase angle of Phase A voltage is defaulted as 0 Phase angle...

Page 11: ...4 MENU 218 8 0 001 000 4 000 2 Uunb V V V Uo Neg Seq Pos Seq Unbalance U Positive sequence value 218 8V Negative sequence value 0 4V Zero sequence value 0 2V Voltage unbalance value 0 001 Unbalance I...

Page 12: ...and value of three phase total active reactive and apparent power Max Min When the measured value is maximum or minimum value at a moment meter will record this value in non volatile memory These maxi...

Page 13: ...ve power Event Meter supports recording information of power on power off programming and energy clearance when it is equipped with DM1 module Each type of record includes total pieces and latest occu...

Page 14: ...me 14 09 22 09 52 33 MENU Left picture shows Program record including 12 times of programming and latest programming time 8 4 Clr Energy Record Num 0002 Last Time 14 09 19 08 50 00 MENU Left picture s...

Page 15: ...4 09 20 10 50 50 This module provides time information and supports data storage function Left picture shows time information Analogue Input Modules DM2 DM3 DM4 DM2 is used to measure 4 20mA signal DM...

Page 16: ...ure is 763 Analogue Output Module DM5 Instantaneous electrical parameters are change into DC current signal output through DM5 module If this module is installed onto meter relative interface will be...

Page 17: ...DM9 module 4 Tariff energy setting mode This function is valid in DM7 module Digital input is used for setting tariffs There are sixteen kinds of tariffs Meter accumulates energy of present period to...

Page 18: ...he relay acts in case of the measuring value more than the alarm value while low alarm indicates the relay acts in case of the measuring value less than that alarm value Only when all the terms spurri...

Page 19: ...s line by twisted conductor and shielded cable Up to 32 stations can be connected together in a segment The cable at the start and end of a segment is terminated with resistors One more communication...

Page 20: ...ions 96 96 90 11 50 5 86 5 55 Mounting 1 Cut a hole in the panel measuring 91 91 mm2 2 Take out the power meter and loosen the clips 3 Insert the meter into the cutout from outside 4 Insert the clips...

Page 21: ...5 COM 20 21 1 3 4 6 7 9 S1 S2 S1 S2 S1 S2 P1 P2 P1 P2 P1 P2 LOAD L3 L2 L1 Rogowski coil Wiring Diagrams AHM3RC SMTP LOAD L3 L2 L1 I 1 3 I 2 I 5 11 8 38 2 18 17 16 15 40 39 2A 3xFUS L1 L3 L2 N LOAD RL2...

Page 22: ...for detailed setting method b Meter measures AC voltage and current signals Please do not connect DC signals to input terminals of meter c Voltage input The external PT should be applied when the inpu...

Page 23: ...o connected to a same CT please connect them in serial Before removing the current input wires the primary circuit loop of CT should be cut off or the secondary circuit loop should be shorted For easy...

Page 24: ...ITCH V12 379 63 V23 379 76 V31 379 86 F 50 000 V V V Hz B C A A measured information indication B display different data and graph information C function button Up left part of each display interface...

Page 25: ...fication Not effective Method of changing numbers Press button to select a bit and then press button to increase the number at selected bit in cyclic order Enter and exit programming status Enter prog...

Page 26: ...e Analog Output Digital Input Clear Signal Inputs Date Energy Demand Max Min Event Pluse Counters Records Mode Relevant Parameter Item Mode Zero Full Mode Time Address BaudRate Parity Mode Relevant Pa...

Page 27: ...s interface can be set as U I P E THD Waveform Demand and Max Min Signal Input Setup Signal Inputs CT Secondary ESC PT Secondary PT Primary EDIT CT Primary 380 V 000380 V 000005 A 3P4W 5 A Wiring Wrin...

Page 28: ...de Pulse Energy pulse width 0 9999 100ms Item EP kwh EP kwh EQ kvarh EQ kvarh Value Secondary energy value corresponding to one energy pulse No 01 Alarm ESC Item EDIT Vn 0000 100ms Pulse Lock LowDelay...

Page 29: ...ng the period of time divided by the length of the period Current demand is calculated using arithmetical integration of the current r m s values during a period of time divided by the length of perio...

Page 30: ...e value of latest T minutes is calculated and then the value is judged and record Demand of one month is record automatically at a fixed time Synchronous mode means that the demand measurement is cont...

Page 31: ...e of energy clearance SOE is made Memory Module Setup Module X1 DM1 ESC Time EDIT Interval 01 min 14 09 28 11 20 00 Interval Data record Interval0 99min Time Setup real time clock Thermocouple Module...

Page 32: ...e should not be larger than two times of rated value 4 12 20mA analog output mode is only valid for active power reactive power apparent power and power factor Item Format Instruction OFF Off V1 xxx x...

Page 33: ...33 PF1 x xxx Power Factor PF2 PF3 PF F xx xx Hz Frequency...

Page 34: ...En DM7 module is used for setting tariffs from its first digital input There are four digital inputs available Tariff is judged by meter according to digital input status Status 0000 corresponds to T1...

Page 35: ...35 1 0 1 0 T11 1 0 1 1 T12 1 1 0 0 T13 1 1 0 1 T14 1 1 1 0 T15 1 1 1 1 T16...

Page 36: ...l Inputs Demand Relay Outputs Module X2 Module X1 ENTER Basic Setup MENU Enter Password Admin ENTER Setup COM1 Port ESC Demand Relay Outputs Module X2 Module X1 ENTER Basic Setup t ENTER ENTER ENTER E...

Page 37: ...n of signal wiring is appropriate for example the homonymous ends of current signal and phase sequence of each phase should be correct The meter can display the value of active power signal of which i...

Page 38: ...The voltage of auxiliary power supply can be measured by multimeter If it turns out to be correct and the meter displays nothing please try electrifying the meter once again 7 Technical specification...

Page 39: ...ge IEC 61000 4 2 Level III Immunity to radio frequency field IEC 61000 4 3 Level III Immunity to electrical fast transients bursts IEC 61000 4 4 Level Immunity to impulse waves IEC 61000 4 5 Level Imm...

Page 40: ...l Characteristics IP index IP65 front panel and IP20 meter body Dimensions 96 96 55mm Environmental Characteristics Operating temperature 10 60 Storage temperature 25 70 Relative humidity 5 95 no gel...

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