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EMM-R4h EMM-

μ

4h 

instruction manual 

IM441-U v0.7 

pag. 14  

VISUALIZATION PEAK AND AVERAGE VALUES

 

Pressing at the same time the 

A

 and 

B

 keys, on 

F

 display will appear the 

average and maximum stored value, that are selected using the 

B

 key while a 

luminous segment on the 

G

 display indicates the type of the maximum and/or 

average value. 
 

AVG

: the average values are calculated on a average time set The calculation 

is at fixed window and it’s sinchronized when the instrument turn on. 
 
The stored maximum values are the two types: 

MAX

: the instantaneous maximum values store the maximum value achieved 

by the parameter of measure for at least one second. 
 

MAX AVG

: the average maximum values (maximum demand) store the 

maximum value achieved in the average time as set in the setup menu. 
 
The integration for the calculating of the average values is synchronized all the 
time that the instrument turn on. 
Press 

A

 and 

B

 keys another time to come back to the measures visualization. The instrument will come back to the 

measure visualization automatically if for 10 seconds no one button is pressed. 
The average value, the maximum value and the maximum average value selectable with 

B

 key are the following: 

parameter Identifications / description 

G display 

phase voltages 

V 

L1-N max

 V 

L2-N max

 V 

L3-N max

 

max

maxD

avg

maximum instantaneous phase voltages 

phase currents 

I 

L1 max

 I 

L2 max

 I 

L3 max

 

 

max

maxD

avg

maximum instantaneous phase currents 

three-phase power 

 W 

max

 

 VAr 

max

 

 VA 

max

 

max

maxD

avg

maximum three phase powers (



phase currents 

I 

L1 max avg

 I 

L2 max avg

 I 

L3 max avg

 

 

max

maxD

avg

maximum of average phase currents (max. demand) 

three-phase power 

 W 

max avg

 

 VAr 

max avg

 

 VA 

max avg

 

max

maxD

avg

maximum of average three phase powers (maximum demand)

phase currents 

I 

L1 avg

 I 

L2 avg

 I 

L3 avg

 

 

max

maxD

avg

average phase currents 

three-phase power 

 W 

avg

 

 Var 

avg

 

 VA 

avg

 

max

maxD

avg

average three phase powers

 

NOTE relative to the measure 

The refresh time of the display is lower of a second and it depends by the time of calculating of the measure and concerning the 
methodology of measure used in the way to allow a comfortable reading of value also in presence of fast variation of the measure 
parameter. 
If the multimeters are used on single phase lines, the measures are referred at the phase L3. The other data displayed and relative to 
the three-phase system must not considered. 
If the measure indicated by the instrument are not reliable or absurd it’s necessary to verify the connection of the measure inputs of 
currents and voltages because must be respected the sequence of the phase, the corresponding of the currents and voltages of the 
same phase (the L1 voltage phase and the TA located on L1 phase must be connected on the L1 input) and the sense of the current 
(the S1 terminals of the TA must be connected at the S1 terminals of the instrument). 
In some application where the secondary is connected to other instruments apart from the EMM multimeter, some problems could 
happen concerning the typology of the amperometric inputs. 
If there are some problem call the assistance service. 

k

M

k

V

L-N

L1

L2

L3

L

Hz

electrical

multi meter

V

A

P.F.

W

VAr

VA

V

L-N

L-L

°C

V

L-L

alarm

kWh

kVArh

...h

max

avg

max

maxD

avg

B

C

D

E

F

A

G

Содержание EMM-M4H

Страница 1: ...c OPTIONS internal CT digital output in alternative to the serial port serial port in alternative to the digital output power supply different from standard version current input 1A MEASURED PARAMETERS parameters unit of measurement initial identification phase and three phase voltages V kV V L1 N V L2 N V L3 N V L N phase to phase and three phase system voltages V kV V L1 L2 V L2 L3 V L3 L1 V L L...

Страница 2: ...tage range of measurable voltage L2 L3 phase to phase power supply 400V 300 500V phase to phase 175 290V phase neutral 230V 175 290V phase to phase 130 170V phase neutral 110V 85 145V phase to phase 50 85V phase neutral L3 N phase neutral power supply 230V 300 500V phase to phase 175 290V phase neutral 110V 175 290V phase to phase 100 170V phase neutral The standard version allows to apply the ins...

Страница 3: ...TION ON THREE PHASE LINE WITH 4 WIRES AND 3 VT EMM P1 S1 P1 P1 P2 S1 S1 S2 INSERTION ON THREE PHASE LINE WITH 3 OR 4 WIRES on line with 3 wires without neutral or with neutral not supplied the N terminal must not be conneccted LOAD EMM P1 S1 P1 P1 P2 S1 S1 S2 N L1 L2 L3 N L1 L2 L3 ...

Страница 4: ... P2 S1 S2 N L1 L2 L3 AMPEROMETRIC INSERTION ON THREE PHASE LINE WITH 2CT AARON insertion VOLTAGE INSERTION ON THREE PHASE LINE WITH 3 WIRES AND 2 VT This voltage insertion is possible only with the version with internal CT t suffix LOAD EMM L1 L2 L3 S2 S2 S1 S1 P2 P2 P1 P1 ...

Страница 5: ...INSERTION ON BALANCED THREE PHASE LINE WITH 3 OR 4 WIRES on line with 3 wires without neutral or with neutral not supplied the N terminal must not be connected L1 L2 L3 LOAD EMM P1 P2 S1 S2 INSERTION ON SINGLE PHASE Only for models with power supply phase neutral Vaux L3 N N L ...

Страница 6: ...D E energy counters excluded The voltage values are referred to the three phase system The k LED displays the reading in kilo x1000 Using the C key the display indicates the type of the energy displayed Using the A and B keys the display indicates the type of average or maximum value A C when pressing simultaneously the instrument pass to the following menu instrument programming SETUP energy coun...

Страница 7: ...0 kW kVAr pulse version with digital output 01 0 kW kVAr pulse 0 10 kW kVAr pulse 0 01 kW kVAr pulse seT TPL Increase from 100 to 500 mS in step by 100 mS Decrease version with digital output seT ID ADR Increase Set address of network from 001 to 127 Decrease version with serial output seT SER BDR Set baud rate 19200 baud 19 2 serial interface 9600 baud 9 60 version with serial output 4800 baud 4 ...

Страница 8: ... energy visualization type after the visualization of the temperature With TOT PAR will have the visualization of the partial and total energy counters With NORMAL there will be only the visualization of total counters that it s possible to reset from RESET menu Programming insertion mode 3PH In a unbalance three phase system it s necessary to set UN_BAL unbalance while in a balance system only on...

Страница 9: ...um values and all energy hours counters Entry to menu seT UP seT Up RESET SET DO1 SET DO2 SET HR_ OFF OFF the visualization depends on the settings and the I O status RESET PEA NO YES Confirm Reset Deleting maximum values max RESET AVG NO YES Confirm Reset Deleting average values avg and maximum demand maxD RESET EN NO YES Confirm Reset Deleting energy counters RESET ALL NO YES Confirm Reset Delet...

Страница 10: ...ress A key to confirm CHOOSE THE PARAMETER TO LINK TO THE DIGITAL OUTPUT With an alarm modality set it s necessary to select the parameters associated to the alarm output by pressing the B and C keys until the parameter choice appears on the third part L3 of F display and the glowing the corresponding led on the D bar Press A key to confirm the set SET THE HIGH AND THE LOW THRESHOLDS On F display ...

Страница 11: ...eresis value With only the LO threshold set the alarm condition is activated when the parameter set in alarm drop below the threshold The digital output is enabled only if the alarm condition remain activated for all delay time set From the activation of the digital output the restore is automatic when the parameter grow above the hysteresis value With both LO and HI threshold set the alarm condit...

Страница 12: ...ore time the B key to select the parameter and the A key to confirm it SET THE THRESHOLD Subsequently it s necessary to set the threshold using the B to increase and C to decrease keys Confirm with A key I O INFO PAGE After the hour counter set the I O info page appears in F displays on the second part L2 the status of the first digital output DO1 on the third part L3 the status of the second digi...

Страница 13: ...same way of the section 1 press the C button to select the parameter that can be displayed and indicated from E LED The voltage values are of the three phase system the frequency is of the L3 channel Visualization energy and hours counters With the C key it s possible to visualize on F display the active reactive and apparent energy counters One segment of the right digit of the G display in corre...

Страница 14: ...hase currents I L1 max avg I L2 max avg I L3 max avg max maxD avg maximum of average phase currents max demand three phase power W max avg VAr max avg VA max avg max maxD avg maximum of average three phase powers maximum demand phase currents I L1 avg I L2 avg I L3 avg max maxD avg average phase currents three phase power W avg Var avg VA avg max maxD avg average three phase powers NOTE relative t...

Страница 15: ...verter and the end of the network last instrument connected Use always twisted cables with minimum section of 0 36mm2 22AWG and lower capacity of 60 pF m i e BELDEN cable type EIA RS485 Ref 3105A Shielded connection Should it be the case of long distance networks ambiences where there have been placed energy transporting cables or ambiences subject to be electrically disturbed it is suggested to u...

Страница 16: ...ires 4 wires and single phase insertion in MT with external TV and transforming rate programmable from 0 1 to 400 0 current inputs from 0 02 to 5A permanent overload 30 from external TA with secondary 5A primary programmable from 5 to 10000A auto consumption 0 5VA INPUTS OUTPUTS digital outputs Two outputs with common optomos 12 230Vac dc max 150mA Insulation 3kV for 60 second Pulse Function Weigh...

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