Universal analyser PLA33RX DL
multifunction network analyser for accurate measurement of three and single phase parameter of LV and HV grids in useful DIN rail mounting design. High sampling rate assures high precisenest of measurement. Together with wide number of I/O, logging memory and RS485 communication interface gives PLA33RX DL 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 - 1000V L-L
- harmonics of U-LN, U-LL and I up to 40th order
- Max, Min, AVG values
- energy counter with 4 tariffs
- graphic configuration of alarm outputs on PC
- built-in light PLC feature
- on board logging Flash memory 1GB
- supply voltage power cuts logging
- DIN rail design
- SW for configuration and monitoring
Function
PLA33RX DL 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. Analyser PLA33RX DL 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 DL with Profibus communication interface.
Flash memory
Variant M of an instrument has 1 GB on board flash memory for recording measured parameters that can 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.
Alarm outputs
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 PLA33RXDL 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 20 ms. PLA33RXDL offers data exchange up to 744 B sorted in 6 pages with max communication speed 12 Mbit.
Software
Software PMS - Power Monitor System offers possibility for full analyser configuration of PLA33RX. More over it is a tool to define recording template, alarms, and defined events and transients limits for historical data evaluation. Another part of PMS SW is used for historical data evaluation and report generation.
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-line voltage | |
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18...1000 V | 0...1 MV | 0.2% | ||||
| 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 |
Technical features
| 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 rate 50/60 Hz | 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 |
| communication interface | RS485, PROFIBUS |
| communication protocol | MODBUS RTU, PROFIBUS DP-V0 |
| device category | 600V CAT III |
| number of I/O | 3 x relay 3 A / 250 VAC; 4 digital I/O; 4-20 mA |
| type of digital outputs | open collector, optically 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 part / IP54 front panel |
