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The EMM5 3 Phase Panel Mounted Multi Meter – 144 x 144mm
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The EMM5 power analyser has been designed to provide a great variety of information from the power distribution system it supervises. High precision values listed below are measured and displayed on the backlit LCD display.
An important feature of the EMM5 is that in addition to measuring the power system it has 6 common point switching relays (rated at 5 Amps., 250V 50/60Hz) plus two volt free switching relays each with a three position switch (N/O + N/C) for operation of volt free alarms. These volt free exits can be programmed to provide pulses of kwh or kvarh, using reed contacts or thyristor outputs.
The four keys on the front of the EMM5 provide easy to understand settings for the various functions, without having to read the manual all the time. Fast Fourier transformation is used on the input data from all channels –three voltage + four current - so that true values are read and recorded which include the harmonic frequencies on nearly all values. The power factor is read –including all harmonics as well as the power factor of the fundamental.
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With 8 x selectable threshold switching contacts
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An operating manual is supplied with each EMM5 and various add-ons are available as listed in the table below. Each EMM5 is fitted with a temperature sensor to measure the ambient air temp in a switchboard cubicle. The output from the sensor can be fed into one of the exit relays to provide an alarm.
The EMM5 allows you to plug up to 8 exit relays which can switch (maximum count 5 amps).
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Measurement Functions of the 3 phase instrument EMM5
| Measurement |
Functions |
Range |
Accuracy |
| Voltage, instantaneous +Max/Min |
L-N |
55-318V |
+/-0.5% |
| Voltage , instantaneous + Max/Min |
L-L |
95-550V |
+/-0.5% |
| Current Input 5 amps, programmed according to CT ratio |
L1/L2/L3/N Instantaneous |
0-5 amps input |
+/-0.5% |
| Current Input 5 amps, programmed according to CT ratio |
L1/L2/L3/N Max Instantaneous |
0-5 amps input |
+/-0.5% |
| Current Input 5 amps, programmed according to CT ratio |
L1/L2/L3/N Average Value
over 8-15-30 minutes |
0-5 amps input |
+/-0.5% |
| Current Input 5 amps, programmed according to CT ratio |
L1/L2/L3/N Peak Average Value (Max. Demand) over 8-15-30 minutes |
0-5 amps input |
+/-0.5% |
| Frequency |
Instantaneous/Max/Min |
45-65 Hz |
+/- 1.0% |
| Power Factor Cos phi |
L1-N/L2-N/L3-N Instantaneous and Max/Min |
all values |
+/- 1.0% |
| Power Factor l |
L1/L2/L3 instantaneous and Max/Min |
all values |
+/-1.0% |
| Power Factor l |
3 phase average instantaneous and Max/Min |
all values |
+/- 1.0% |
| kVA |
L1-N/L2-N/L3-N Instantaneous and Max |
0-25,000 MVA |
+/-1.0% |
| kVA |
3 phase total kVA Instantaneous and Max |
0-75,000 MVA |
+/-1.0% |
| kW |
L1-N/L2-N/L3-N Instantaneous and Max |
0-25,000 MW |
+/- 1.0% |
| kW |
3 phase kW Instantaneous and Max |
0-75,000 MW |
+/-1.0% |
| kW |
L1-N/L2-N/L3-N plus 3 phase kW Instantaneous and peak demand over 8-15-30 minutes |
1 ph = 0-25,000 MW
3 ph = 0-75,000 MW |
+/- 1.0% |
| kVAr |
L1-N/L2-N/L3-N plus 3 phase total instantaneous and Max kVAr |
1 ph = 0-25,000 MVAR
3ph = 0-75,000MVAR |
+/-1.0% |
| KWH |
3 Phase total |
9999 gWh |
+/-1.0% |
| KVARH |
3 Phase total |
9999 gkVArh |
+/-1.0% |
| THD Voltage |
Instantaneous and Max |
0-100% |
+/-1.0% |
| THD Current |
Instantaneous and Max |
0-100% |
+/-1.0% |
| Harmonic Voltage 2nd ... 63rd |
Instantaneous and Max |
0-100% |
+/-1.0% |
| Harmonic Current 2nd ... 63rd |
Instantaneous and Max |
0-100% |
+/-1.0% |
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Outputs and Optional Extras
| Current Path 1 Amp or 5 Amp |
please state 1A or 5A current input on order |
| Neutral current measured or calculated |
fitted as standard |
| 6 x normally open (N/O) common point contacts |
fitted as standard - can be programmed |
| 2 x three way contacts (N/O - N/C) |
fitted as standard - can be programmed |
| Temperature sensor for ambient air temp |
fitted as standard - can be programmed |
| Datalogger and Event Recorder Media Card |
available on request at extra cost |
| 2 x programmable 4-20mA outputs |
available on request at extra cost |
| RS232 or RS485 interface |
available on request at extra cost |
| Infra Red Interface |
available on request at extra cost |
| PROFIBUS & MODBUS |
available on request at extra cost |
| Various Languages for the menu |
details on request |
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Technical Data
| Supply-voltage: |
198-253V, 45-65Hz, 8VA, max. fuse gL 6A |
| Measurement-voltage: |
95 ... 550V Phase/Phase, 55 ... 318V Phase/Neutral 45-65 Hz., VT Ratio 1 ... 350 |
| Measurement-current: |
0-5 A, Burden 0.5VA, programmable ratio 1 ... 4000 (Max CTratio = 20,000/5)
Max continuous overload = 20%, or 6A |
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Alt: |
| Relay-outputs: |
0-1A, Burden 0.5 VA, programmable ratio 1 ... 4000 (Max CT ratio = 4,000/1)
Max continuous overload = 20% or 1.2A |
| Alarm contacts: |
2 change-over (N/O - N/C) volt freemax. fuse gL 6A, switching current 250V AC / 3A, 30V DC / 3A |
| Fan-control: |
Sensor for temperature-measurement integrated in EMM5, it’s possible to program a relay-output for fan-control |
| Interface: |
Standard non various optional interfaces on request |
| Ambient temperature: |
operating: 07C ... + 707C, storing: -20 ... +857C |
| Humidity: |
0% - 95%, without moisture condensation |
| Over voltage class: |
II, pollution degree 3 (DIN VDE 0110, Part 1 / IEC 60664-1) |
| Standards: |
DIN VDE 0110 Part 1 (IEC 60664-1:1992)
VDE 0411 Part 1 (DIN EN 61010-1 / iEC 61010-1:2001)
VDE 0843 Part 20 (DIN EN 61326: 1997 +A1:1998 +A2:2000) |
| Conformity and Listing: |
CE, UL Approved - CUL (Canada) Approved |
| Terminals: |
spring cage clamp, max. 2,5qmm |
| Casing: |
instrument casing |
| Protection grade: |
front IP50 (optional IP54 and lockable), backside IP20 |
| Weight: |
approx 0.65kg |
| Dimensions: |
144 x 144 x 58 mm H x B x T, cutout 138 0.5 x 138 0.50.5 |
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