F&F DMM-5T-3 User manual

F&F Filipowski sp. j.
ul. Konstantynowska 79/81, 95-200 Pabianice,
tel./fax [phone]
www.fif.com.pl;
e-mail: [e-mail]
DMM-5T-3
Multifunctional 3-phase multimeter
with Modbus RTU communication,
4-quadrant electricity measurement
User manual
v. 1.1 (211011)
www.fif.com.pl

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DMM-5T-3 User manual
Features.............................................................................................................................................................2
1. Connection scheme.......................................................................................................................................3
2. Selection and installation of a current transformer ......................................................................................4
3. Warnings .......................................................................................................................................................4
4. Device maintenance ......................................................................................................................................4
5. General ..........................................................................................................................................................4
6. First operation of the device .........................................................................................................................4
7. Introduction of screen...................................................................................................................................5
8. Introduction of buttons .................................................................................................................................6
9. Progress on screen information ....................................................................................................................7
10. Fast forwarding of screen information ......................................................................................................12
11. Menu structure..........................................................................................................................................13
11.1. Setting the current transformer ratio.....................................................................................................14
11.2. Changing voltage transformer ratio........................................................................................................14
11.3. RS-485 Remote communication settings................................................................................................14
11.4. Deleting energy, demand and event records..........................................................................................14
11.5. Enter password value .............................................................................................................................15
11.6. Changing the connection type................................................................................................................15
11.7. Setting the date ......................................................................................................................................15
11.8. Setting the time......................................................................................................................................15
11.9. Task assignment to relay 1 and relay 2...................................................................................................16
12. Dimensions................................................................................................................................................16
13. Menu values table .....................................................................................................................................17
14. Technical data............................................................................................................................................18
Appendix 1 ......................................................................................................................................................19
Appendix 2 ......................................................................................................................................................22
»Measures up to voltage harmonics 55th (L-N and L-L);
»Measures up to current harmonics 55th;
»
»RS-485 Modbus RTU;
»71.5×61.5 Custom design glass LCD;
»
»
»
»
»It shows the minimum, maximum and average values of the phase-to-phase and phase-neutral voltages
(V);
»
»
»
»2 relay outputs (adjustable), 1 digital input;
Table of contents
Features

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DMM-5T-3 User manual
»
ularity, THDV and THDI limits);
»
»
»It shows demands;
»You can delete energies, demand, and event logs;
»The menu is password protected.

1. Connection scheme

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DMM-5T-3 User manual
»Note that the value of current transformer is higher than the maximum current drawn from the system.
»
»
cables or give cable numbers.
»Please spread the cables which are connected to current transformer output terminal from remote high
voltage lines.
»
»
»Please protect LCD screen from sun light.
»
»
»Please not use device in the damp board.
»Voltage inputs and power supply of the meter should be protected with 0.5÷1 A slow-blow fuses.
»
»
These cables should be routed as far as possible from power lines.
»
»The feed cables should be suitable for IEC 60227 or IEC 60245 requirements.
Turn off energy of the device and disconnect from connections. Clean the device body by using slightly moist
or dry cloth. Do not use conductor or other chemical as a cleaning agent matter which is harmful to device.
Make connections after the cleaning of device and give energy to device and make sure that device works
properly.

mum values of the load and also measures demands. It records the events. This analyzer measures current
harmonics and voltage harmonics up to 55. harmonics.
Please read the warnings before powering the device. Make connections of the device according to the
connection scheme. When the device is first powered up figure-4 displayed on the screen. Firstly enter the
current transformer ratio from the settings menu and if the voltage transformer medium voltage is being
measured), enter the voltage transformer ratios.
2. Selection and installation of a current transformer
3. Warnings
4. Device maintenance
5. General
6. First operation of the device

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DMM-5T-3 User manual
Number Description
Indicates the unit of the value
Indicates which phase the value belongs to
Indicates displayed values: V – voltage, I – current, F – frequency, S – apparent power,
P – active power, PF – power factor, THD-I – total current harmonics,

Indicates battery level of clock time
Symbol Description Symbol Description
Specified that the indicated active
energies are imported
Specified that the indicated reactive
energies are inductive
Specified that the indicated active
energies are exported
Specified that the indicated reactive
power are capacitive
Specified that the indicated reactive
energies are inductive
Indicates that communication is
done
Specified that the indicated reactive
energies are capacitive
7. Introduction of screen

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DMM-5T-3 User manual
Symbol Description Symbol Description
Indicates that the values shown are
minimum Din1: There is voltage (1)
Indicates that the values shown are
maximum Din1: There is no voltage (0)
Indicates that the values shown are
average
Out1: Relay 1 is pulled
(short circuit)
Indicates that the values shown are
demand
Out1: Relay 1 is released
(open circuit)
Indicates that the values shown are
below 10%
Out2: Relay 2 is pulled
(short circuit)
Indicates that the values shown are
over 10%
Out2: Relay 2 is released
(open circuit)
Indicates that the values shown are
below 40% Total active energy
Indicates that the values shown are
over 80% in current and over 20% in
harmonics
Total inductive reactive energy
Total capacitive reactive energy
Button Description
ESC Works only in the setting mode (SET). After pressing the button, the edited parameter is
abandoned and the device returns to the higher setting level or exits the setting mode.
SET Works only in the setting mode (SET). Pressing the button moves to the edition of the selec-
ted parameter or confirms the value of the edited parameter.
DOWN
In the setting mode (SET), pressing the button changes the value of the parameter being
edited. Outside the setting mode, pressing the button changes the measurement parameters
indicated on the screen.
RIGHT
In the setting mode (SET), pressing the button switches between the parameters of the
meter. Outside the setting mode, pressing the button shows detailed information about the
displayed measurements (such as minimum, maximum or average value ...).
8. Introduction of buttons

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DMM-5T-3 User manual
No. Screen Description
Fig. 4. Indicates phase-neutral voltage.
When you press right button, the Figure-5 appears on the screen.
Fig. 5. Indicates minimum (Min) voltage values of phase-neutral voltage.
When you press right button, the Figure-6 appears on the screen.
Fig. 6. Indicates maximum (Max) voltage values of phase-neutral voltage.
When you press right button, the Figure-7 appears on the screen.
Fig. 7. Indicates average(Ave) voltage values of phase-neutral voltage.
When you press right button, the Figure-8 appears on the screen.
Fig. 8.
Illustrates the date and time, in which phase-neutral voltage goes under 90%
(<Vtr×230×0.9) of the nominal voltage values (lowest). When you press the
right button, values belong to L2 and L3 phases appear on the screen respecti-
vely. When you press right button, the Figure-9 appears on the screen.
Fig. 9.
Illustrates the date and time, in which phase-neutral voltage goes above 110%
(<Vtr×230×1.1) of the nominal voltage values (swl). When you press the right
button, values belong to L2 and L3 phases appear on the screen respectively.
When you press right button, the Figure-10 appears on the screen.
Fig. 10.
Illustrates the recorded date and time, in which phase-neutral voltage goes
under 40% (<Vtr×230×0.4) of the nominal voltage values (cut), and a blackout
occurs. When you press the right button, values belong to L2 and L3 phases
appear on the screen respectively.
When you press right button, the Figure-11 appears on the screen.
Fig. 11. Shows the phase-phase voltage values.
When you press right button, the Figure-12 appears on the screen.
Fig. 12. Shows the minimum (Min) values of the phase-phase voltage.
When you press right button, the Figure-13 appears on the screen.
Fig. 13. Shows the maximum (Max) values of the phase-phase voltage.
When you press right button, the Figure-14 appears on the screen.
9. Progress on screen information

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DMM-5T-3 User manual
No. Screen Description
Fig. 14. Shows the average (Ave) values of the phase-phase voltage.
When you press right button, the Figure-15 appears on the screen.
Fig. 15.
Illustrates the date and time, in which phase-phase voltage goes under 90%
(<Vtr×230×0.9) of the nominal voltage values (lowest). When you press the ri-
ght button, values belong to L23 and L31 phases appear on the screen respecti-
vely. When you press right button, the Figure-16 appears on the screen.
Fig. 16.
Illustrates the date and time, in which phase-phase voltage goes above 110%
(<Vtr×230×1.1) of the nominal voltage values (swl). When you press the right
button, values belong to L23 and L31 phases appear on the screen respectively.
When you press right button, the Figure-17 appears on the screen.
Fig. 17.
Illustrates the recorded date and time, in which phase-phase voltage goes un-
der 40% (as a default) (<Vtr×230×0.4) of the nominal voltage values (cut), and
a blackout occurs. When you press the right button, values belong to L23 and
L31 phases appear on the screen respectively.
When you press right button, the Figure-18 appears on the screen.
Fig. 18. It shows current values of each phase.
When you press the right key, the Figure-19 comes to the screen.
Fig. 19. It shows the minimum (Min) current values of each phase.
When you press the right key, the Figure-20 comes to the screen.
Fig. 20. It shows the maximum (Max) current values of each phase.
When you press the right key, the Figure-21 comes to the screen.
Fig. 21. It shows the average (Ave) current values of each phase.
When you press the right key, the Figure-22 comes to the screen.
Fig. 22. It shows current demand (Dmd) values for each fuse.
When you press the right key, the Figure-23 comes to the screen.
Fig. 23.
It shows the time and date of demands which belongs to each phase.
When you press the right key ,values which belongs to the L2 and L3 comes to
the screen subsequently.
When you press the right key, the Figure-24 comes to the screen.
Fig. 24.
It shows the time and date which current limit (>Ctr×0.80) of each phase is
exceeded. When you press the right key ,values which belongs to the L2 and L3
comes to the screen subsequently.
When you press the right key, the Figure-25 comes to the screen.

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DMM-5T-3 User manual
No. Screen Description
Fig. 25. It shows the active power (P) values for each zone.
When you press the right button, the screen will show Figure-26.
Fig. 26. It shows the maximum active power (P) values for each zone.
When you press the right key, the Figure-27 comes to the screen.
Fig. 27. It shows average(Ave) active power (P) value of each phase.
When you press the right key, the Figure-28 comes to the screen.
Fig. 28. It shows the active power (P) demand (Dmd) values for each zone.
When you press the right key, the Figure-29 comes to the screen.
Fig. 29.
It shows the time and date of active power (P) demands of each phase.
When you press the right key ,values which belongs to the L2 and L3 comes
to the screen subsequently.
When you press the right key, the Figure-30 comes to the screen.
Fig. 30. 
When the right button is pressed, the Figure-31 comes to the screen.
Fig. 31. It shows the maximum reactive power value (Max) which belongs to each
phase. When the right button is pressed, the Figure-32 comes to the screen.
Fig. 32. 
When the right button is pressed, the Figure-33 comes to the screen.
Fig. 33. 
phase. When the right button is pressed, the Figure-34 comes to the screen.
Fig. 34.

When the right botton is pressed values of L2 and L3 phases comes to the
screen subsequently. When the right button is pressed, the Figure-35 comes
to the screen.
Fig. 35. It shows apparent power (S) which belongs to each phase.
When the right button is pressed, the Figure-36 comes to the screen.

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DMM-5T-3 User manual
No. Screen Description
Fig. 36. It shows maximum (Max) apparent power (S) value which belongs to each
phase. When the right button is pressed, the Figure-37 comes to the screen.
Fig. 37. It shows average (Ave) apparent power (S) which belongs to each phase.
When the right button is pressed, the Figure-38 comes to the screen.
Fig. 38. It shows the demand (Dmd) of apparent power (S) which belongs to each
phase. When the right button is pressed, the Figure-39 comes to the screen.
Fig. 39. 
When the right button is pressed, the Figure-40 comes to the screen.
Fig. 40. It shows the power factor value (PF) which belong to each phase.
When the right button is pressed, the Figure-41 comes to the screen.
Fig. 41.
It shows time and dates of each phase when the power factor limit (<0.80)
of each phase is lowered (Lmt). When the right button is pressed values of L2
and L3 phases comes to the screen subsequently.
When the right button is pressed, the Figure-42 comes to the screen.
Fig. 42. It shows the frequency value of each phase.
When the right button is pressed, the Figure-43 comes to the screen.
Fig. 43.
It shows total harmonic distortion value (THD-V) which belongs to voltage
of the phase.
When the right button is pressed, the Figure-44 comes to the screen.
Fig. 44.
It shows total harmonic distortion value (THD-I) which belongs to current
of the phase.
When the right button is pressed, the Figure-45 comes to the screen.
Fig. 45.
It shows the date and time of each phase exceeding (>%20) THD-V limit. When
you press the right button, the values of the L2 and L3 phases are displayed on
the screen respectively.
When the right button is pressed, the Figure-46 comes to the screen.
Fig. 46.
It shows the date and time of each phase exceeding (>%20) THD-I limit. When
you press the right button, the values of the L2 and L3 phases are displayed on
the screen respectively.
When the right button is pressed, the Figure-47 comes to the screen.