Its small size together with the IP65 protection and ruggedness makes Unilyzer 900 an ideal tool for all field measurements. It has no moving parts and has been tested in real, tough environments. The instrument complies with IEC 61000-4-30 Class A for Power Quality measurements, which guarantees highest reliability in every advice and conclusion. Its standard memory allows data to be stored for 3 months. In case of a power failure it has an internal battery backup keeping the instrument going.

Examples of measured parameters:

• Voltage (and current) variations
• Sags and swells
• Flicker levels
• Harmonics (up to 100th)
• RVC
• Unbalance
• Transients
• Transformer monitoring
• Environmental conditions

Voltage Inputs
Voltage channels: 4 inputs with automatic transducer identification.
Range: 0 - 1000 V RMS. Other range optional.
Resolution: 24 bit
Sampling rate: 5000 samples/cycle (250 kHz). No time gaps.
Transient detection: Up to 31.000 samples/cycle. Multiple triggers.
Event recording: Waveform and RMS for all channels with multiple triggers.
Bandwidth: 40 kHz. Separate inputs for transient detection. Analogue anti-alias filters.
Accuracy:
• Unilyzer 900: IEC 61000-4-30 Class A (< 0,1% Udin).
• Unilyzer 900c: IEC 61000-4-30 Class S (< 0,5% Udin).

Current Inputs
Current channels: 4 inputs with automatic transducer identification.
Range: Clamp on ammeters available in the range 0 to 5000 A (iron core and Rogowski coils).
Resolution: 24 bit
Sampling rate: 5000 samples/cycle (250 kHz). No time gaps.
Transient detection: Up to 31.000 samples/cycle.
Transient resolution: 24 bit
Bandwidth: 40 kHz. Separate inputs for transient detection. Analogue anti-alias filters.
Accuracy:
• Unilyzer 900: IEC 61000-4-30 Class A (< 0,1% Udin).
• Unilyzer 900c: IEC 61000-4-30 Class S (< 0,5% Udin).

Miscellaneous
Measurements: Algorithms and methods according to Unilyzer 900: IEC 61000-4-30 Class A.
Unilyzer 900c: IEC 61000-4-30 Class S. More than 2500 parameters calculated.
Storage: intervals Individual settings for each parameter group, from 3 sec or more. Standard setting 10 min.
Storage capacity: 32 MB flash memory (standard). With standard settings the memory can store more than 100 days of measure data. Optional upgradable memory (GB) available equalling 17 years of storage.
Communication: USB 2.0 (standard). Ethernet. WLAN router(Unilyzer 900).
Time synchronisation: Synchronisation with configuring computer. Unilyzer 900: Optional built-in GPS receiver.
Degree of protection: IP65 dust and splash proof.
Insulation class: CAT III / 1000 V, CAT IV / 600V.
Transducer identification: Automatic.
Size: W x H x D 109 x 187 x 50
Operational temperature: -10 °C to +55 °C. Optional extended range available.
Weight: 0,7 kg.
Personal safety: EN 61 010-1.
EMC: IEC 61000-6-2 and IEC 61000-6-3.
Power supply: 90 - 600 VAC. 100-300 VDC. Internal UPS 1,5 hour (extended time on request).

Just load a pre-defined setting and you are up and running immediately. The display gives you valuable information as well as allows you to modify settings.

The instrument has integrated Wi-Fi. You easily connect to Unilyzer 900 from any computer, smartphone or tablet. Use your Android Smartphone or Windows tablet to check the voltage in an easy, safe and flexible way