The MAE-1 measurement unit is a high-performance instrument for precise and comprehensive analysis of an electrical circuit:
- **Electrical:**
- Two versions available:
- Auxiliary power supply 80 ... 270 VAC
- Auxiliary power supply 24 VDC
- Measurement unit for single-phase, three-phase, or four-wire networks.
- Indirect connection on current transformers with 1A or 5A secondary, and/or voltage transformers.
- Active energy measurement accuracy class 0.2S.
- **Physical:**
- Flush mounting in 91×91 mm cutout. Case dimensions 96×96, depth 52.8 mm.
- Color TFT display.
- Front panel IP65.
- **Communication:**
- 1 configurable pulse transmitter.
- Fully programmable Modbus port (parity, speed, frame).
- **Relay Inputs and Outputs:**
- 2 digital inputs.
- 2 relay outputs.
- **Multi-measurement:** Measures a multitude of electrical quantities for a complete and precise circuit analysis:
- Active and reactive energies, imported and exported
- Voltage
- Current
- Active, reactive, and apparent powers
- Power factor
- Frequency
- Demands
- Extreme values
- Imbalances
- Harmonics up to the 63rd order
- And many more...
- **Data Recording:** The measurement unit records all measured data and events:
- Recording and timestamping of micro-outages
- Load curve evolution
- Device management
- Minimum or maximum threshold alarms
These data can be viewed using the free software provided and exported in .csv format.
- **Circuit Control and Alarms:** The 2 relays are programmable for minimum or maximum current, voltage, power, phase imbalance thresholds, allowing:
- Alerting in case of abnormal electrical signal
- Protecting electrical circuits
- Performing alarm functions in case of failure or inappropriate signal
- Automatic load shedding in case of overload.
- **Electrical Circuit Status Feedback:** The 4 digital inputs allow knowing the status of auxiliary circuits or devices and alerting in case of failure or circuit interruption.
- **Additional Modules:** Possibility to install up to 4 Max modules at the back of the case, to add additional communication, measurement, or management functionalities.
- **Ergonomic Interface:** The color TFT screen ensures data presentation in the form of diagrams or vector graphics. Navigation is intuitive thanks to clearly identifiable sub-menus.
- **Remote Supervision:** A complete software is provided with the measurement unit, allowing data consultation and relay output control from a computer.
- **High Precision:** Class 0.2S for active energy and 0.2% for instantaneous measurements.
- **Conformities:** CE, RoHS, REACh.
- **Applicable Standards:** IEC61000-4, IEC61010-1, IEC62053-23, class 2, IEC62053-22, class 0.2S.
- **Associated Products:**
- FM communication modules
- Other functions
- Compatible current transformers
- **Resources:**
- Electrical measurement units
- Understanding harmonic disturbances
- Negative energy problem: diagnosis and technical solutions
- Article: MAE1 Measurement Unit
**Characteristics / Technical Specifications:**
- Auxiliary power supply: 80 ... 270 VAC or 24 VDC
- Network: single-phase, three-phase, or four-wire
- Connection: 1A or 5A current transformers
- Active energy accuracy: class 0.2S
- Display: color TFT
- Front panel: IP65
- Digital inputs: 2
- Relay outputs: 2
- Communication: programmable Modbus
- Dimensions: 96×96 mm, depth 52.8 mm
- Mounting: flush, 91×91 mm cutout
- Conformities: CE, RoHS, REACh
- Standards: IEC61000-4, IEC61010-1, IEC62053-23, IEC62053-22