MRG Flex
Mobile power analyzers with RCM, MRG 512-PRO PQ Flex and MRG 96-PQ-L-LP Flex
MRG Flex is Janitza's portable measuring case: an analyzer of the kind installed permanently in panels, with its Rogowski current coils and voltage taps, packed into a rugged case and ready to record power quality and residual current wherever the question is. The coils clamp around the conductors without interrupting the supply, so the case goes into an existing panel in minutes — for a short-term power quality study at several points, a fault search at a remote station, a cross-check of installed meters without removing them, or the load of a construction site or an event. The data is evaluated in GridVis®, and the measurements also show whether a permanent analyzer is needed at all. It comes in two versions. The MRG 512-PRO PQ Flex carries a UMG 512-PRO and measures to Class A of IEC 61000-4-30, with transients, interharmonics, 256 MB of memory and a three-hour UPS that keeps recording through a power failure. The MRG 96-PQ-L-LP Flex carries a UMG 96-PQ-L-LP in a 3 kg case with a laptop backpack, and covers 10 to 8000 A with its Rogowski coils.
Key Features
- 01Mobile power quality and residual current (RCM) measurement in one case, with no fixed installation
- 02Rogowski coils: retrofitted without interrupting the system, suited to large cable cross sections and harmonic currents
- 03MRG 512-PRO PQ Flex: Class A to IEC 61000-4-30, harmonics, interharmonics, THD-U / THD-I / TDD, transients > 39 µs
- 04MRG 512-PRO PQ Flex: 256 MB internal memory and three-hour UPS buffering for uninterrupted recording during a power failure
- 05MRG 96-PQ-L-LP Flex: harmonics up to the 65th, short-term interruptions, 280 samples per full wave
- 06MRG 96-PQ-L-LP Flex: 10 … 8000 A measuring range; case, backpack and accessories only 3 kg in total
- 07Ethernet port and device homepage, reached from a browser over IP
- 08Evaluation and power quality reports in GridVis®
- 09Supplied with fused voltage taps, test leads, Rogowski coils and residual current connecting cables
Applications
- Power Quality SolutionsPower quality problems such as harmonics, voltage sags and swells, flicker, transients and voltage unbalance can occur in electrical systems. They can arise from non-linear loads, sudden load changes, network events and the electrical structure of the facility itself. Poor power quality can cause overheating in equipment, nuisance tripping, energy losses, shorter equipment life and interruptions to production continuity. At EPKOM we use power quality analyzers to measure and monitor LV and MV systems, recording harmonics, voltage events and the other power quality parameters. We evaluate the resulting data against the relevant standards, such as EN 50160, IEC 61000 and IEEE 519, according to the measurement point and the scope of the application. Following measurement and analysis, we apply active and passive harmonic filters, SVG systems, compensation solutions and power quality monitoring systems according to the needs of the facility, helping the electrical infrastructure run more safely, efficiently and stably.
- Residual Current MonitoringResidual current monitoring (RCM) measures leakage currents in the electrical system continuously, allowing insulation degradation, cabling problems and other electrical faults to be detected at an early stage. Unlike residual current devices (RCD), RCM systems do not cut power the moment a set threshold is exceeded; they monitor leakage current levels continuously and raise a warning before a developing fault reaches a critical level. In data centers, where unplanned outages are critical, this is a significant advantage for operational continuity. With Janitza RCM solutions, leakage currents can be monitored centrally, historical data can be followed and alarm levels can be defined. Continuous monitoring through GridVis makes it possible to track how insulation problems develop and to plan maintenance before a fault occurs.
Technical Specifications
MRG Flex
| Versions / part no. | MRG 512-PRO PQ Flex: 5216905. MRG 96-PQ-L-LP Flex: 5216907 |
|---|---|
| Built-in analyzer | UMG 512-PRO (512-PRO PQ Flex); UMG 96-PQ-L-LP (96-PQ-L-LP Flex) |
| Measurement class | Class A to IEC 61000-4-30 (512-PRO PQ Flex); Class S to IEC 61000-4-30 (96-PQ-L-LP Flex) |
| Harmonics | Up to the 63rd, plus interharmonics (512-PRO PQ Flex); 1st … 65th (96-PQ-L-LP Flex) |
| Distortion factors | THD-U, THD-I, TDD |
| Transients | > 39 µs (512-PRO PQ Flex) |
| Sampling | 280 samples per full wave (96-PQ-L-LP Flex) |
| Current measurement | Rogowski coils: 100 … 4000 A (512-PRO PQ Flex); 10 … 8000 A with 4 × MFC 150, Ø 175 mm, 5 m (96-PQ-L-LP Flex) |
| Residual current | Integrated RCM inputs; 3 m connecting cables supplied, residual current transformer not included |
| Memory | 256 MB (512-PRO PQ Flex) |
| Power failure buffering | Three-hour UPS (512-PRO PQ Flex) |
| Communication | Ethernet; device homepage over IP |
| Software | GridVis® |
| Weight | Approx. 3 kg including case, backpack and accessories (96-PQ-L-LP Flex) |
| Scope of delivery, 512-PRO PQ Flex | 4 black + 1 blue fused voltage taps, voltage test lead set, 4 Rogowski coils Ø 175 mm, CAT 5e cross-patch cable, 2 RCM connecting cables 3 m |
| Scope of delivery, 96-PQ-L-LP Flex | Laptop backpack, power cable, 3 black + 1 blue fused voltage taps, voltage test lead set, 4 MFC 150 Rogowski coils, RCM connecting cable set 3 m |
Technical values are taken from the manufacturer's published documentation. Confirm against the current datasheet before ordering.
Downloads
Datasheets, manuals and technical documentation are available from the manufacturer's document centre, or on request from us.
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