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EMM-3 

instruction manual / manual de instrucciones 

IM425-UE-F v2.2 

pag. 1 

INSTRUCTION MANUAL 

IM425-UE-F v2.2

EMM-3

 MULTIFUNCTION 

VOLT/AMMETER 

GENERAL

The digital Multifunction Volt/Ammeter series EMM allow monitoring 
the main electrical parameters present on a distribution line. The local 
display of the electrical parameters is being made through 3 display 
with red LED, which grant a good and simultaneous reading of 
various measures. The intuitive selection of the measures to visualise, 
which are signalled by their corresponding LED, completes a clear 
and simple front panel, which offer a lot of useful information. 
On top of the instantaneous measuring, these instruments visualise 
the maximum peak of the main parameters (maximum peak and 
maximum demand or maximum average value). 
Multifunction Volt/Ammeter series EMM replace, in an unique device, 
all the functions of voltmeters, ammeters and frequency meters, 
permitting a great economic saving, due to reducing of dimension and 
wiring, so as optimising the instruments management, since one has 
most of all in one, for electrical boards, switch-boards and Gen-Sets. 

AVAILABLE MODELS 

Several models, with various optional functions and outputs are available, either for flush mounting on front panel and for 
DIN rail mounting. 

INTRODUCTION

The EMM-3 is only featured for visualising the electrical parameters. The power supply is taken from the measured 
voltage or self-supplied. 

ACCESSORIES and OPTIONS 

Accessories

: transparent cover for frontal protection. 

Options

: power supply and measure voltages different than standard 

 

measuring current inputs with internal CT’s 

MESURED PARAMETERS 

Parameters 

Measuring units

Identification Symbols 

Phase and three phase voltage 

[V-kV] 

L1-N

 V 

L2-N

 V 

L3-N

6

 V 

L-N

Phase to phase and three phase system voltages 

[V-kV] 

L1-L2

 V 

L2-L3

 V 

L3-L1

6

 V 

L-L

Phase and three phase currents 

[A-kA] 

L1

 I 

L2

 I 

L3

6

 I 

Frequency [Hz] 

Hz 

L1

 

 

 

 

Hour 

meter 

[hr] 

hr1 hr2 hr3  

Instantaneous Values: 

Maximum phase voltage 

[V-kV] 

L1-N max

 V 

L2-N max

 V 

L3-N max 

Minimum phase voltage 

[V-kV] 

L1-N min

 V 

L2-N min

 V 

L3-N min 

Maximum phase to phase voltage 

[V-kV] 

L1-L2 max

 V 

L2-L3 max

 V 

L3-L1 max 

Maximum phase current 

[A-kA] 

L1 max

 I 

L2 max

 I 

L3 max

Measured value in 15’ 

 

 

 

 

Average phase current (maximum demand) 

[A-kA] 

L1 max (avg)

 I 

L2 max (avg)

 I 

L3 max (avg)

www.fanox.com

[email protected]

Tel: 0034 94 471 14 09

Fax: 0034 94 471 05 92

Pag 1

Summary of Contents for EMM-3

Page 1: ...ch boards and Gen Sets AVAILABLE MODELS Several models with various optional functions and outputs are available either for flush mounting on front panel and for DIN rail mounting INTRODUCTION The EMM 3 is only featured for visualising the electrical parameters The power supply is taken from the measured voltage or self supplied ACCESSORIES and OPTIONS Accessories transparent cover for frontal pro...

Page 2: ...e to phase power supply 110V 85 145V phase to phase 50 85V phase neutral 230V 300 500V phase to phase 175 290V phase neutral L3 N phase neutral power supply 110V 175 290V phase to phase 100 170V phase neutral The standard version allows applying the instrument at all the three phase network 400V with or without neutral supplied For example for application on single phase 230V it will need the L3 N...

Page 3: ...on with internal CT s P1 P2 S2 P2 P1 P1 P1 P2 S1 S1 S1 S2 N L1 L2 L3 THREE PHASE LINE WITH 4 WIRES AND 3 VT P1 P2 S1 S2 N L SINGLE PHASE LINE If the instruments are used on single phase line the measures are referred to the L3 phase Don t consider the other data displayed regarding to the three phase value system LOAD I2 C I I1 I3 S1 S2 VL1 VL2 VL3 N measure current inputs measure voltage inputs E...

Page 4: ...E C LED s for indicating the measures visualised on display E and the eventual multiplier factor of each parameter reading k kilo x1000 D LED for indicating the visualisation of the memorised peak values E Three displays for visualising the measures subdivided by phases Should the LED 6L be glowing it indicates the three phase system value of the selected parameter A B By pressing the two keys sim...

Page 5: ...press the A button The instrument will exit from programming and it will enter in the visualisation modality Activating or cancelling the automatic scrolling This allows selecting ON for activating or OFF for cancelling the automatic scrolling of the measures visualisation MEASURES VISUALISATION The measures reading is visualised on the display E showing the three phase measures L1 L2 y L3 respect...

Page 6: ... A Cancellation of the peak values Enter in programming mode SETUP press the key B until the message ReseT appears on the display E then press the key A and the message RES ALL NO will appear on display E By pressing the key B the message will change to RES ALL yes If confirmation is made with the key A all memorised data will be cancelled The exit of the cancellation menu is made automatically NO...

Page 7: ...y supply permanent overload 20 impedance at the input 1 M Three phase wiring with 3 or 4 wires and single phase wiring MV connection through external VT with programmable transformation ratio from 1 to 400 Current inputs From 0 02 to 5A permanent overload 30 from external CT s with secondary 5A primary programmable from 5 to 10000A self consumption 0 5VA GENERAL Display and keyboard 3 display with...

Page 8: ...oducts the company reserves itself the rights of modifying the characteristics of the present product at any time The manufacturer s liability due to damages caused by defects of the product might be reduced or superseded when the damage has been caused jointly by a product s defect or and by cause of the injured party or a person under the injured party s responsibility Article 8 85 374 CEE www f...

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