UMG 503 is a universal measuring device suitable for measurement, storage and supervision of electrical parameters in low and medium networks. The measurement is designed for single and three phase system with (or) without Neutral Conductor.
Possible applications are:
Supervision and control of electrical quantities in energy distribution.
Measured value transducer for PLC.
SALIENT FEATURES
High measuring accuracy
Indication of: Voltage, Current, Neutral Current, kW ,KVA, cos-phi, Hz, kWh, kvarh, THDU, THDI and Individual Harmonics from 1st Order to 20th Order etc..
Variable Supply Voltage
Up to 320.000 measured values can be stored with date and time
UMG 503 Device measures and digitizes the effective values of Voltages and Currents in a network. Two random tests are carried out in each second. From these scanned values, the inserted microprocessor calculates the electrical quantities.
STORAGE:
Maximum Values, Lowest Values and Programming Data are saved in the Battery Buffered Memory. Selected measured values and net breakdown or resumption are saved in the Ring Buffer with data and time.
MEMORY:
Up to 320.000 measured values can be stored with date and time. Ex : Mean values of U1, U2, U3, I1, I2, I3, P1, P2 and P3 are saved for every 15 minutes for about one year in the device with 512 k RAM and about 3 months in devices with 128 k RAM.
MEASURED VALUE INDICATION / ROTATION:
The well readable LCD data field in combination with the function keys informs about the selected measured values (actual- / lowest- / highest - / meanvalues). With this meter, 3 measured values are indicated in the display and create 140 data fields individually through the Software. For the measured value rotation a cycle of 1-9999 seconds can be set and measured values can be selected.
AUXILIARY INPUT:
The auxiliary input can be programmed for one of the following:
OFF = Auxiliary input not used
1= Reset of the 15 minutes power mean value
2= Tariff changeover
3= Synchronization of the internal clock.
PULSE OUTPUT:
The pulse output delivers current pulses of the assigned real or reactive energy. The minimum pulse duration is 50 ms.
RELAY OUTPUTS:
The relay outputs K1 and K2 can be used for supervision of certain thresholds. Each realy output can be linked with a measured value, and be saved with date and time and activated in case of exceedings. In order to avoid too frequent switchings, a minimum time can be programmed for each relay output.
DECENTRAL INPUT / OUTPUT SYSTEM:
UMG 503 can operate 6 external analogue outputs, 6 digital outputs and 3 digital inputs via a bus coupling and functional clamps with Modbus RTU Master – Protocol. The connection between UMG 503 and bus coupling is carried out via interface RS 232 or RS 485 by choice.
SUMMER / WINTER TIME CHANGE OVER:
Possibilities are : a) Off b) Select changeover time of summer / wintertime c)Automatic changeover according to the middle European conventions.BIMETALLIC FUNCTION : The bimetallic function is built for the three currents in the outer conductors. These values can be integrated over the times and be saved as highest mean values.
EVENT MEMORY:
Deletion of event buffer, Relay outputs ON / OFF, Breakdown & resumption of auxiliary voltage and measuring voltage can be saved within the event buffer.
SOFTWARE:
The programming and evaluation software is PSWbasic and online collection of the measured value can be visualized and evaluated through PSWprofessional.
