Technical Data — EEM-MA771-R
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General data |
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Measuring principle |
True RMS value measurement (TRMS) up to 63rd harmonic |
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Measurement value |
AC sine |
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Nominal frequency |
50/60 Hz |
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Frequency range |
45 Hz ... 65 Hz |
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Sampling rate |
256 times the signal frequency: 12800 Hz @ FSignal = 50 Hz 15360 Hz @ FSignal = 60 Hz |
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Operating mode |
Continuous and simultaneous across all 6 channels |
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Linearization method |
internal |
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Degree of protection |
IP54 (display with seal) IP20 (housing) |
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Dimensions |
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Housing |
96 mm (width) x 96 mm (height) x 73.25 mm (depth) |
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Installation depth |
61.6 mm |
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Plugs that are plugged in from behind are not considered in these specifications |
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Voltage measurement |
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Input measuring range, direct |
18 V AC ... 690 V AC (Ph/Ph) 11 V AC ... 400 V AC (Ph/N) |
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Input type |
Voltage measurement against N (neutral) |
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Input measuring range using transformer Primary Secondary |
60 V AC ... 2,000,000 V AC 60 V AC ... 400 V AC |
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Power consumption |
<0.5 VA |
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In- /Output impedance |
L1, L2, L3, N = 5 MOhm |
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Overvoltage (permanent) |
760 V AC Ph/Ph 440 V AC Ph/N |
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Accuracy |
0.2% |
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Current measurement, Rogowski coil direct connection |
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Input type |
combined measurement against B |
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Input measuring range using Rogowski coil Primary
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(the meter has 2 different measuring steps integrated) 0 A AC … 400 A AC (measuring step 1) 0 A AC … 4000 A AC (measuring step 2) 0 mV AC … 48 mV AC (measuring step 1) 0 mV AC … 480 mV AC (measuring step 2) |
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Overload capacity |
1.2 x In = 1.2 x 400 mV AC = 480 mV AC |
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Short-term overload |
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In- /Output impedance |
≥150 kOhm |
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Discrimination threshold |
0.1% In |
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Accuracy |
0.5% (10% ... 120% In) |
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Protection |
— (no protection) |
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Power measurement |
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Accuracy, active power: Rogowski coil direct connection: |
1% (in acc. with DIN EN 61557-12) |
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Precision, reactive power: Rogowski coil direct connection: |
2% (in acc. with DIN EN 61557-12) |
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Accuracy, apparent power: Rogowski coil direct connection: |
1% (in acc. with DIN EN 61557-12) |
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Active energy in accordance with 62053-21 Rogowski coil direct connection: |
Class 1 |
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Reactive energy in accordance with EN 62053-23 Rogowski coil direct connection: |
Class 2 |
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Pulse value, LED test output Rogowski coil direct connection: |
100 Wh/Imp |
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Supply (AC variants) |
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Supply voltage range |
80 V AC ... 480 V AC 120 V AC ... 300 V DC |
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Nominal supply voltage |
100 V AC ... 400 V AC +/-20% 150 V DC ... 250 V DC +/-20% |
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Frequency |
50/60 Hz (AC sine) +/- 5 Hz |
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Power consumption |
<4 W |
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Digital input in accordance with 61131-2 (type 3) |
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Nominal voltage |
24 V DC |
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Nominal current |
- |
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Input voltage range |
0 V DC ... 30 V DC |
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Signal ON time |
≥30 ms |
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Signal OFF time |
≥30 ms |
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Digital output in accordance with 61131-2 (type 3) |
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Number of outputs |
1 (configurable semiconductor output) |
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Nominal voltage |
24 V DC |
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Rated output current I_e |
0.1 A |
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Output voltage range |
19.2 V DC ... 30 V DC |
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Output current range |
0 mA ...100 mA |
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Behaviour in case of voltage interruptions |
If the 24 V DC supply is interrupted, the output is not active (status = 0) |
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Total delay time |
500 ms including transient period and overshoot when changing over full range |
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Communication interface |
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Ethernet X1 |
RJ45/LAN - 100Base-TX |
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Protocol |
ModbusTCP, REST API |
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Serial interface |
2.4 kBit/s ... 115.2 kBit/s |
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RS-485 |
ModbusRTU |
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Display |
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Type |
LCD display, two-color, backlit |
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Refresh |
adjustable: 500 ms, 1 s, 2 s |
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Electrical isolation |
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Reinforced insulation: housing against all potentials Overvoltage category III at 300 V AC Overvoltage category II at 600 V AC |
IEC 61010-1 |
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Reinforced insulation: supply against all other potentials Measurement category III at 300 V AC Measurement category II at 600 V AC |
IEC 61010-1 |
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Reinforced insulation: voltage measurement input against all other potentials Measurement category III at 300 V AC Measurement category II at 600 V AC |
IEC 61010-2-30 |
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Test voltage (reinforced insulation) |
4 kV AC (50 Hz, 1 min.) |
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Functional insulation: current measurement input against all other potentials |
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Functional insulation: digital I/Os |
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Functional insulation: communication interface |
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Pollution degree |
2 |
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Ambient conditions |
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Ambient temperature (operation) |
-25°C ... +70°C |
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Ambient temperature (storage/transport) |
-30°C … +80°C |
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Permissible humidity (operation |
≤95% non-condensing |
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Altitude |
≤2,000 m |
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Mechanical requirements |
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Vibration |
Test according to DIN EN 50470-1:2007-05 Acceleration 1gn (10 m/s²) |
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Frequency range |
10 Hz … 150 Hz |
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Shock |
IEC 60068-2-27 30g/11 ms |
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Connection data |
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Conductor cross section, current (rigid/flexible) |
0.2 mm² ... 4 mm² / 0.2 mm² ... 6 mm² |
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Conductor cross section, voltage (rigid/flexible) |
0.5 mm² ... 2.5 mm² / 0.5 mm² ... 4 mm² |
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Conductor cross section, supply (rigid/flexible) |
0.14 mm² ... 2.5 mm² |
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Conductor cross section, digital I/O (rigid/flexible) |
0.14 mm² ... 1.5 mm² / 0.14 mm² ... 2.5 mm² |
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Conductor cross section, communication (rigid/flexible) |
0.14 mm² ... 2.5 mm² |
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Connection method |
Screw connection |
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Tightening torque |
0.5 Nm |
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Date and time |
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Precision of clock time during normal operation |
±50 ppm |
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Precision of clock time during power reserve |
±150 ppm |
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Duration of power reserve |
<24 h |
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Time constant T |
<1 h |
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Fuses |
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DI/DO |
≤250 mA |
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Supply |
≤16 A |
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Conformance/approvals |
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CE-compliant |
RoHS, EMC, LVD |
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RoHS |
EN 50581 |
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EMC |
EN 61000-6-2, EN 61000-6-3 |
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LVD |
EN 61010-1 |
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UL, cULus-listed |
UL 61010-1 |
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UKCA-compliant |
Yes |