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.