Power Quality Monitoring Device UMG 510
Technical Data
| Overvoltage category: | CATIII |
| Pollution degree: | 2 |
| Operating ambient temperature: | -10°C .. +50°C |
| Storage temperature: | -20°C .. +60°C |
| Dimensions: | B 144 x H 144 x T 90 mm |
| Protection class: | 1=Device with protective wire |
| Auxiliary voltage: | 95 .. 265V AC; 100 .. 370 V DC; 15VA |
| Current measurement: | 5A (1A); 0,2 VA |
| Minimum operating current: | 5mA |
| Voltage measurement: | L-N 5 .. 500V AC; 0,2VA; 15-440Hz |
| L-L 8 .. 870V AC; 0,2VA; 15-440Hz | |
| Protection class front: | IP 50 acc. to IEC60529 |
| Front with sealing: | IP 54 acc. to IEC60529 |
| Back side: | IP 20 acc. to IEC60529 |
| Scan frequency: | 28,8 kHz |
Main measurement
The UMG 510 has 4 measurement channels for current and voltage. The first three channels (main measurement) are intended for use in a three-phase sy.
Auxiliary measurement
The auxiliary measurement can be used for measurement in a single-phase or symmetrical three-phase system. Alternatively, the current input can be allocated to the three-phase system of the main measurement for measuring the neutral-conductor current. For example, the voltage input could then be used for recording the voltage between the neutral conductor and PE. The auxiliary measurement provides all measurement parameters like in the main measurement (current, voltage, power, harmonics, transients, events and flicker).
Interfaces
- Profibus DP, RS485 (Modbus/RTU, Modbus-Gateway), Fast Ethernet 10/100Base-TX
- Protocols: HTTP, NTP, Modbus TCP, Modbus over TCP, DHCP
The measurement values and recorded data can be called up using the Ethernet (TCP/IP). Parameterisation of the instrument and analysis of the data is undertaken using PAS 510 software included in the delivery. The actual measurement values can be read out using the various field bus protocols (Modbus/RTU, Modbus/TCP, Profibus) and the digital inputs and outputs can be controlled.
Digital inputs and outputs
The 8 digital inputs of the instrument can either be used for tariff switchover for synchronisation, to start the recording or as other meter inputs for pulses. There are 8 programmable comparators available which can be allocated up to 4 measurement parameters as a limit value comparator. The digital outputs can also be programmed as a signal output for transients, events or as a pulse output.
Data collection and recording
The UMG 510 has an internal 128 MB flash memory for continuous recording of all measured data. The measurement value memory is freely configurable with reference to the measurement values which are to be recorded and the recording intervals. The recording interval is also the average time of the respective measure ment value. In addition, the highest and lowest current values (200ms average time) can also be recorded within the interval if you want to save the data as a graph y(t).
Obviously it is also possible to store the measurement data in form of histogramms (distribution curve). The recording of transients and events is initiated by triggers. Transients are recorded from a period larger than 70µs. Events such as excess currents or under/overvoltage can be safely recorded from half a period. Events are recorded over 512 half cycles as an effective value recorder.
