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F&F DMM-5T-2 User Manual

Multifunctional network parameter indicator
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ul. Konstantynowska 79/81
95-200 Pabianice
phone/fax +48 42 215 23 83,
42 227 09 71
e-mail: biuro@fif.com.pl
Multifunctional network parameter indicator
DMM-5T-2
User manual
v. 1.0.1

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  • Page 1 Konstantynowska 79/81 95-200 Pabianice phone/fax +48 42 215 23 83, 42 227 09 71 e-mail: biuro@fif.com.pl Multifunctional network parameter indicator DMM-5T-2 User manual v. 1.0.1...
  • Page 2 A potentially dangerous situation that could endanger operating personnel or dam- age the unit. Information on the construction, operation, and maintenance of the multimeter. Important information, valuable tip. Practical advice, solution to the problem. Example of application or operation. DMM-5T-2 network parameter meter...

  • Page 3: Table Of Contents

    Communication ................................31 How to connect ..............................31 Read/write parameters via RS485 .......................... 31 List of registers with measurement results ......................31 List of registers with meter configuration ......................35 Change history ................................40 WARRANTY ................................. 41 DMM-5T-2 network parameter meter...

  • Page 4: Introduction

    Introduction The DMM-5T-2 is a multifunctional, universal board indicator designed for versatile monitoring of parameters of a single- or three-phase power line. The multimeter allows for high accuracy measurements of all relevant network parameters, such as phase voltages and currents, phase-to-phase voltages, active, reactive, apparent power, power factor.
  • Page 5 (total or individ- 0  100% ual from the second to the 63rd harmonic) Total Harmonic Distortion of the voltage (total or individ- 0  100% ual from the second to the 63rd harmonic) DMM-5T-2 network parameter meter...

  • Page 6: Installation

    Power supply voltage The DMM-5T-2 Multimeter is powered via the V1, V2, V3, N voltage terminals and does not require an auxiliary power supply. It is recommended to protect the power supply and voltage circuits of the meter with a 1 A fuse-link.
  • Page 7 After mounting the multimeter on the panel, the cabling can be connected. The diagram of the layout of the leads is shown in Fig. 2. Fig. 2) View of the multimeter from the side of the connector plates DMM-5T-2 network parameter meter...
  • Page 8 Terminating resistors with a value of 120 must RS485    tion interface be connected at the ends of the bus Up to 32 DMM-5T-2 meters can be con- nected in one branch of the RS485 bus. DMM-5T-2 network parameter meter...

  • Page 9: Installation Diagrams

    Installation diagrams Fig. 3) 1P2W system - 1-phase, 2-wire network, semi-indirect measurement Fig. 4) 3P4W system - 3-phase, 4-wire network, semi-indirect measurement DMM-5T-2 network parameter meter...
  • Page 10 Fig. 5) 3P3W system - 3-phase, 3-wire network, semi-indirect measurement Fig. 6) 3P4W system - 3-phase, 4-wire network, indirect measurement DMM-5T-2 network parameter meter...
  • Page 11 Fig. 7) 3P3W system - 3-phase, 3-wire network, indirect measurement DMM-5T-2 network parameter meter...

  • Page 12: Multimeter Support

     Current harmonics (from 1 to 63), change of  Maximum and average current consumption; the displayed harmonics using the Up or  While in configuration or value selection mode Down buttons. - the Up button (increasing the value). DMM-5T-2 network parameter meter...

  • Page 13: Description Of The Display Elements

    - the Right button. Description of the display Fig. 9) Description of the display Number Description Indicator of selected network type:  1P2W – 1-phase, 2-wire installation,  3P3W – 3-phase, 3-wire installation,  3P4W – 3-phase, 4-wire installation. DMM-5T-2 network parameter meter...

  • Page 14: Indicator Mode - Displaying The Network Parameters

    The multimeter can display a permanently selected view with measured values or automatically switch views according to a preset cycle. A quick switchover between these settings is available after a long press of the ESC button. Automatic view switching is on Automatic view switching is off DMM-5T-2 network parameter meter...
  • Page 15 Switching between successive phases and the view of active or reactive energy takes place after successive presses of the ESC button. Fig. 10 Phase voltage Fig. 11 Phase-to-phase voltage Fig. 12 Phase currents and neutral wire current Fig. 13 DMM-5T-2 network parameter meter...
  • Page 16 Fig. 15 Phase sequence indicator (measured against voltage and current terminals) Fig. 16 Selected voltage harmonic Press the button for two seconds, and then use the Up or Down buttons to select the harmonic number. Fig. 17 DMM-5T-2 network parameter meter...
  • Page 17 Total power factor and frequency Fig. 18 Power factor for each phase Fig. 19 Maximum current demand Fig. 20 Maximum power demand Fig. 21 DMM-5T-2 network parameter meter...
  • Page 18 Press the button for two seconds, and then use the Up or Down buttons to select the harmonic number. Fig. 22 Active power by phase Fig. 23 Reactive power by phase Fig. 24 Apparent power by phase Fig. 25 DMM-5T-2 network parameter meter...

  • Page 19: Configuration

    To edit the next digit, click the Left or Right button. The parameter value is con- firmed by pressing the Right button for at least two seconds. Exit the editing mode and return to the previous menu is carried out by pressing the ESC button. DMM-5T-2 network parameter meter...

  • Page 20: Entering The Pin Number

    Caution: You must enter the PIN code each time you enter the settings. WARNING: Take all precautions to avoid losing or forgetting your password. If the password is lost, access to the configuration parameters of the meter will not be possible. DMM-5T-2 network parameter meter...
  • Page 21 The DMM-5T-2 meter settings are divided into five basic groups. You can switch between the parameter groups by pressing the Up or Down keys. To enter the selected group, press the Right button for at least two seconds.

  • Page 22: Communication Parameters

    Settings: 2400, 4800, 9600, 19200, 38400 bps Default value: 9600 bps Fig. 34 Transmission parity settings in Modbus RTU net- work Settings: Parity None – no parity check Even – parity check Odd – odd number check Default value: None Fig. 35 DMM-5T-2 network parameter meter...

  • Page 23: Current Transformer Ct

    Fig. 36 Current transformer CT Setting parameters of current transformers connected to DMM-5T-2. When programming parameters of current transformers in the meter, it is neces- sary to set the value of the primary side to parameter CT1 and the secondary side to parameter CT2.
  • Page 24 Potential transformer PT Setting the parameters of potential transformers used in case of using the DMM-5T-2 meter in the system for in- direct measurement. When programming parameters of current transformers in the meter, it is neces- sary to set the value of the voltage ratio of the transformer.
  • Page 25 PULSE pulse output The DMM-5T-2 is equipped with two pulse outputs Ter- Out- Function put: P1+ Universal, programmable pulse output. Selection of a function, number, and pulse length. P2+ Signalization of the consumption of active energy. Pulse constant 3200 imp./kWh.
  • Page 26 The power demand indicates the highest value of power demand for a given period. Reducing or removing the load does not reduce the cal- culated demand. To reset the current demand, use the rest menu described below. DMM-5T-2 network parameter meter...
  • Page 27 10, 15, 20, 30, 60 min. demand Default value: 60 min. Fig. 45 Pierwszy pomiar zapotrzebowania - First measurement of the demand Drugi… - Second measurement of the demand Trzeci – Third measurement of the demand DMM-5T-2 network parameter meter...
  • Page 28 Syst menu or by the long press of the ESC button. Fig. 47 System parameters: Group of parameters related to:  selection of the measuring system,  adjustment of current transformer connection direction,  PIN change,  start of the automatic view switching mode. DMM-5T-2 network parameter meter...
  • Page 29 Available settings: 0 - 9999 Default value: 1000. WARNING: Take all precautions to avoid losing or forgetting your password. If the password is lost, access to the con- figuration parameters of the meter will not be possible. Fig. 50 DMM-5T-2 network parameter meter...
  • Page 30 Reset of the power and current demand indicators Reset of the power de- To reset the indications of the power demand, mand indi- press the OK button until the dmd symbol cators flashes. Then release and long-press the dmd button again. Fig. 53 DMM-5T-2 network parameter meter...

  • Page 31: Communication

    Data format:  Float – Floating point number, 32-bits (4-bytes)) The availability of measurement results depends on the chosen measurement system  T – measurement available for selected measurement system  - - measurement not available DMM-5T-2 network parameter meter...
  • Page 32 0x0054 Total power demand 0x0056 Maximum power demand 0x0058 Power import demand 0x005A Maximum power import demand 0x005C Power export demand 0x005E Maximum power export demand 0x0064 Total apparent power demand 0x0066 Maximum apparent power demand DMM-5T-2 network parameter meter...
  • Page 33 Phase L2 – demand for current 0x0106 Phase L3 – demand for current 0x0108 Phase L1 – Maximum demand for current 0x010A Phase L2 – Maximum demand for current 0x010C Phase L3 – Maximum demand for current DMM-5T-2 network parameter meter...
  • Page 34 Phase L2: Sum of voltage harmonics 1150 0x047E Phase L3: Sum of voltage harmonics 1152 0x0480 Phase L1: Sum of current harmonics 1154 0x0482 Phase L2: Sum of current harmonics 1156 0x0484 Phase L3: Sum of current harmonics DMM-5T-2 network parameter meter...

  • Page 35: List Of Registers With Meter Configuration

    0x0002, but the value will be 0x0006 Float updated with the step set in the register 0x0004. The value is calculated from the period set in the register 0x0002 and updated at the end of the full calculation period. DMM-5T-2 network parameter meter...
  • Page 36 2 stop bits, no parity control RS485 communication - Meter address in Modbus network 0x0014 Float Settings: 1 – 247 Pulse output OUT1 - pulse constant Settings: 0.001 pulse/kWh 0x0016 Float 0.01 pulse/kWh 0.1 pulse/kWh 1 pulse/kWh 10 pulse/kWh DMM-5T-2 network parameter meter...
  • Page 37 Rated current of the secondary side of the current transformer Settings: 0x0034 Float The change requires entering the PIN code in the 0x000E reg- istry first and unlocking access to critical settings. 0x0038 Float Adjustment of current transformer connection direction. DMM-5T-2 network parameter meter...
  • Page 38 Value 0 means that the display will be backlit all the time Pulse output OUT1 - the selection of the indicated value Selection of the parameter whose change will be signaled on the pulse output OUT1 0x0056 Float Settings: Imported active energy Total active energy DMM-5T-2 network parameter meter...
  • Page 39 Access Format Function Exported active energy Imported reactive energy Total reactive energy Exported reactive energy Reset of the meter indicators Settings: 61456 0xF010 Reset of the current and power demand indicators Reset of the energy meters DMM-5T-2 network parameter meter...

  • Page 40: Change History

    Change history 2020.02.06 Issue of the first version of the DMM-5T-2 multimeter manual DMM-5T-2 network parameter meter...

  • Page 41: Warranty

    9. The guarantee shall not limit the rights of the buyer arising from the non-conformity of the goods with the contract. DMM-5T-2 network parameter meter...

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