Universal analyser PLA33RX
multifunction network analyser for accurate measurement of three and single phase parameter of LV and HV grids in useful panel 96 x 96 mm mounting design. High sampling rate assures high preciseness of measurement. Together with wide number of I/O, logging memory and RS485 communication interface gives PLA33RX numerous usage.
- supply 85 ... 250 VAC/DC or 24 ... 60 VAC/DC
- sampling 25.6 kHz (50Hz) / 30.72 kHz (60Hz)
- communication interface RS485, Profibus
- 1 x analogue output 4 - 20 mA
- external temperature sensor
- 3 x relay O, 4 x digital I/O
- measurement according IEC 61000-4-30 ed 3.
- measuring range of voltage 10 ... 1000 V L-L
- harmonics of U-LN, U-LL and I up to 40th order
- Max, Min, AVG values
- energy counter with 4 tariffs
- supply voltage power cuts logging
- graphic configuration of alarm outputs on PC
- built-in light PLC feature
- on board logging Flash memory 1 GB
- panel 96 x 96 mm design
- SW for configuration and monitoring
Function
PLA33RX is an universal measuring instrument with high accuracy class, great sampling rate 25.6 kHz (50 Hz), various input / output combinations and other features. Instrument is designed for measuring of electrical parameters in low voltage and high voltage grids for 2, 3, 4 line and TN, TT grids. PLA33RX can be as optionally equipped by 1 GB Flash on-board memory to behave as a measured data logger with possibility of logged data download via RS485 interface. Communication interface use Modbus RTU protocol and as an optional variant it is possible to have PLA33RX with Profibus communication interface.
Flash memory
Variant M of an instrument has 1 GB on board flash memory for recording measured parameters that can be processed by software PMS or any other SW or SCADA SW. Data stored in on board flash memory can be read by standard Modbus RTU functions for easy implementation.
Inputs / Outputs
Instrument can be, according to the variant, equipped by 4 x digital fully programmable inputs / outputs, 3 x relay outputs 3A/250VAC. PLA33RX can also have analogue output 4 – 20 mA.
Inputs / Outputs
Instrument can be, according to the variant, equipped by 4 x digital fully programmable inputs / outputs, 3 x relay outputs 3A/250VAC. PLA33RX can also have analogue output 4 – 20 mA.
Outputs can be configured in followings states:
- Digi-Out - output controlled by command via RS485 or Profibus
- Pulse-Out - impulse output of device energy counter
- Alarm-Out - output controller by alarm events
Inputs can be configured in following states:
- Digi-In - digital input
- Pulse-In - pulse counter input with pulse weight configuration
- Tarrif-In - input controlling the device ounter tariff
Profibus
Multifunction meter PLA33RX can be equipped by an interface Profibus DP-V0, that allows fast regular data exchange. In order to provide fresh and actual data, analyser computes some parameters not only in 200ms interval but also in interval of 20ms. PLA33RX offers data exchanve up to 744B sorted in 6 pages with max communication speed 12Mbit.
Software
Measured parameters
| Parameter | L1 | L2 | L3 | L1-2 | L2-3 | L3-1 | ∑L1-L3 | Max | Min | Avg | Range | Display | Accuracy |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| phase voltage |  |
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10...600 V | 0…1 MV | 0.2% | ||||
| line voltage | |
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18...1000 V | 0...1 MV | 0.2% | ||||
| system frequency | |
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40...70 Hz | 40...70 Hz | 10 mHz | ||||||
| current | |
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0.001...8.5 A | 0...1 MA | 0.2% | |||
| cosΦ | |
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0.01L...0.01C | 0.01L...0.01C | 1% | |||
| power factor | |
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0.01L...0.01C | 0.01L...0.01C | 1% | |||
| THDU L-N | |
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0...999% | 0...999% | 5% | ||||
| THDU L-L | |
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0...999% | 0...999% | 5% | ||||
| THDI | |
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0...999% | 0...999% | 5% | ||||
| TDD | |
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0...999% | 0...999% | 5% | ||||
| U harmonics | |
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0...999% | 0...999% | class 1 | ||
| I harmonics | |
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0...999% | 0...999% | class 1 | |||||
| U asymmetry | |
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0...100% | 0...100% | 0.3% | ||||||
| K-factor | |
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| I asymmetry | |
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0.5% | ||||||||
| active power | |
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0...15.3 kW | 0...9999 GW | 0.4% | |||
| reactive power | |
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0...15.3 kvar | 0...9999 Gvar | 0.4% | |||
| apparent power | |
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0...15.3 kVA | 0...9999 GVA | 0.4% | |||
| distortion power | |
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0.5% | |||||
| active energy +/- | |
0...9999 GWh | 0...9999 GWh | class 1 | |||||||||
| reactive L energy +/- | |
0...9999 Gvarh | 0...9999 Gvarh | class 2 | |||||||||
| reactive C energy +/- | |
0...9999 Gvarh | 0...9999 Gvarh | class 2 | |||||||||
| temperature | -40...+125°C | 1°C |
Technické parametry
| Parameter | Value |
|---|---|
| auxiliary supply voltage | 85 .. 265 VAC/DC or 24 .. 65 VAC/DC |
| system frequency | 50 Hz or 60 Hz |
| self consumption | 1.5 VA |
| sampling frequency 50/60Hz | 25.60 kHz / 30.72 kHz |
| MTU ratio | 1 ... 750 000 |
| MCT ratio | 1 ... 10 000 |
| max number of logged auxiliary supply power cuts | 20 |
| logging memory for measured parameters | 1 GB |
| comunication interface | RS485 galvanic insulated, PROFIBUS |
| comunication protocol | MODBUS RTU, PROFIBUS DP-V0 |
| device category | 600V CAT III |
| number of I/O | 3 x relay O 3 A / 250 VAC; 4 x digital I/O; 4-20 mA |
| type of digital outputs | open collector, optical insulated (S0) |
| max voltage of digital outputs | 24 VDC |
| max current of digital outputs | 100 mA |
| type of inputs | optically insulated |
| max voltage of digital inputs | 24 VDC |
| max current of digital inputs | 10 mA |
| weight | 350 g |
| protection degree | IP20 rear side / IP54 front panel |
