Product’s technical functions and features

• Portable power quality, power and energy measuring instrument
• Large 7″ color LCD with touchscreen technology for extremely easy operation
• IEC 61000-4-30:2008 class A and EN 50160 for legally secure measurements
• 1000 V CAT III and 600 V CAT IV permit a broad range of applications
• 15 to 20 Hz and 45 to 65 Hz frequency ranges for flexible use
• Communication via Ethernet, Wi-Fi, Bluetooth and USB for simple, reliable data transfer
• Four current inputs (AC/DC) for connecting flexible AC/DC current sensors
• Four symmetrical voltage channels (AC/DC, 50/60 Hz)
• Signal sampling with 512 values per period
• Time synchronization via GPS and NTP
• Acquisition of voltage dips and swells, overvoltage, transients, asymmetry, flicker
• Harmonics, sub-harmonics, signal voltage • Automatic report generation
• Mini-reports for simple creation of user-specific reports
• Dashboard function for monitoring real-time values
• Integrated 4 GB flash memory, USB port for external storage media
• VNC remote control via PC, Mac, IOS and Android
• Easy evaluation with practical DranView® 7 software
• Rugged protective cover (IP 50) with instrument stand and cable retainer

Interfaces

• Display type: LCD color display (WVGA) with CCFL background illumination (florescent). Time until background illumination is switched off can be adjusted for user-specific requirements. Background illumination is switched back on when the display is touched. Resolution: 360 x 240 pixels, dimensions: 9.15 cm high x 15.2 cm wide
• Touch-sensitive function keys, three functions for creating screenshots and mini-reports, and for accessing the help function. These keys cannot be activated while wearing gloves!
• Alarm: short (0.1 s) or long (1 s) acoustic signal in the event of an error or trigger display.
• The following communication interfaces are available on the MAVOWATT 270: Ethernet (with cable), wireless (Wi-Fi), Bluetooth, VNC, Modbus

Voltage, current, phase, power, frequency

• Voltage type: 4 x with full differential, direct current, electrically isolated up to 1 kV, input range for channels A, B, C, D: 0 – 1000 RMS CAT III, 0 – 600 VRMS CAT IV, input impedance: min. 20 MΩ, input/input, crest factor: max. 2.0 in full-scale, RMS* accuracy: ±0.1% rdg., ±0.05% full-scale, more than 15 KHz bandwidth: ±0.1% rdg. at V > 60 Vrms, RMS accuracy fluctuation*: ±0.2% rdg., transient input range: 50 – 2000 VPeak, transient accuracy: ±10% rdg., ±0.5% full-scale at pulse width > 10 μS, transient duration: min. 2 μS, common-mode rejection: -80 dB, sampling rate: 512 samples per period, RMS based on half-periods • Current type: 4 x with full differential, direct current, electrically isolated up to 1 kV, input range for channels A, B, C, D: 10 – 200% rated probe current (GOSSEN METRAWATT probes), input impedance: min. 340 kΩ, input/input, crest factor for channels A, B, C, D: max. 3 in full-scale, RMS accuracy: ±0.1% rdg., ±0.05% full-scale plus probe accuracy, 9 KHz bandwidth (RMS 1 s), transient input range: x rated probe current (GOSSEN METRAWATT probes), transient accuracy: ±10% rdg., ±0.5% full-scale at pulse width > 10 μS, transient duration: depends on probe bandwidth, common-mode rejection: -80 dB, sampling rate: 512 samples per period, RMS based on half-periods, probe current per channel: max. 20 mA at 3.3 V
• All channels are sampled simultaneously in order to avoid fiducial error.
• Power accuracy (at the measurement inputs): ±0.2% rdg., ANSI C12.1 / C12.20 • Frequency selectable depending on selected nominal frequency. GOSSEN METRAWATT models MAVOWATT 270, MAVOWATT 240, MAVOWATT 230 – default setting: 30 – 70 Hz, up to 30% Vthd, 60 – 1000 Vrms, 15 – 30 Hz, accuracy: ±10 mHz, GOSSEN METRAWATT models MAVOWATT 270 – 400 – default setting: 30 – 70 Hz, up to 25% Vthd, 380 – 440 Hz (reduced accuracy with 32 samples per period), accuracy: ±0.2% rdg.
• Ambient conditions: all specifications are based on operating values and influencing factors per IEC 61000-4-30, class A.

The power quality analyzers included in the MAVOWATT product range are used for monitoring, analysis and recording of mains quantities in public power supply systems and industrial applications. With the help of these innovative products, all relevant measured quantities can be acquired which are decisive for the quality of electrical supply power. Disturbances and events can be easily pinpointed, documented and analyzed with reference to applicable standards – the perfect foundation for sustainable optimization.

SAFE

• 1000 V CAT III / 600 V CAT IV for safe work within the public power grid as well as for measurements in industrial environments with up to 1000 VRMS AC/DC
• Wireless remote access ensures hazard-free work and configuration in safety-critical environments
• Complies with the latest industrial standards and permits legally secure recording and documentation per:
• EN 50160: Voltage characteristics in public electrical power supply systems
• IEC 61000-4-30, class A (edition 3): Testing and measurement techniques – Power quality measurement methods
• IEC 61000-4-7: Testing and measurement techniques – General guide on harmonics and interharmonics measurements and instrumentation
• IEC 61000-4-15 Flickermeter – Functional and design specifications

INTUITIVE

• Enormous 7″ color touch-display for convenient on-site operation, configuration and analysis
• Automatic setup: The instrument automatically detects the type of connection as well as nominal values for voltage, current and frequency, thus permitting quick device configuration – even without previous knowledge or training on the instrument.
• The PQ and energy dashboard with real-time warnings and red-green display provides you with a quick overview in just a matter of seconds during measurement.
• Answer Modules®: Intelligent algorithms support you during troubleshooting and diagnosis, and offer direct information regarding the sources of any detected interference.

FLEXIBLE

• 8 differential inputs (4 U / 4 I) permit precise and flexible acquisition of measured values in star as well delta systems – even downstream from frequency converters – or simultaneous, direct measurement of AC and DC signals of up to 1000 VRMS
• Transient voltage and current acquisition with sampling rates of up to 1 MHz and 2000 VPEAK
• Various frequency bands for worldwide use in systems with 16⅔, 50 and 60 Hz
• GPS receiver input for time synchronization
• Ethernet, Wi-Fi, Bluetooth and USB for data transmission and remote access via smartphone, tablet, PC and MAC

Our portable analyzers are the right choice wherever power quality, power and energy data need to be simply and accurately ascertained. All of the instruments are equipped with a 7″ (18 cm) color touchscreen for displaying data and setting up device functions. Ethernet, Wi-Fi and Bluetooth interfaces are available for remote use in safety-critical environments, via which the instruments can be operated with the help of a VNC interface. MAVOWATT instruments measure voltage and current via four channels each and detect changes within the monitored electrical circuit: voltage dips and swells, overvoltage, harmonics and flicker based on internationally recognized industry standards such as IEC 61000-4-30:2008 class A, IEC 61000-4-7, IEC 61000-4-15, IEEE 1159, IEEE 519, IEEE 1453 etc. Depending on the instrument variant, low, medium and high-frequency transients can be acquired, as well as apparent, active and reactive power, power factor, demand/energy etc.

MAVOWATT energy and power quality analyzer including set of measurement cables, rechargeable battery, charger, factory calibration certificate, DranView 7 software and carrying pouch