Automatic Construction Level 20x, IP56 and 2.5 mm per km Double Run - Leica NA520

On dusty sites and in the rain, accuracy is not the first problem, survival of the working day is. The NA520 automatic level from Leica Geosystems is rated IP56 against dust and powerful water jets and works from -20 °C to +50 °C. The compensator levels the line of sight by itself within ±15 arc minutes, the standard deviation is 2.5 mm per kilometre double run to ISO 17123-2.

Benefits

• IP56 rating, dust tight and protected against powerful water jets, the instrument stays in use in the rain and during hose down instead of going back in the case.
• Operating range of -20 °C to +50 °C, 10 degrees more headroom than the NA300 series, which matters in summer work on asphalt and inside halls.
• 20x magnification on a 36 mm objective aperture, enough for the usual sighting distances in building and civil work.
• Compensator with a ±15 arc minute working range and setting accuracy better than 0.5 arc seconds, the instrument is ready to read once the bubble is roughly centred.
• Shortest target distance below 1.0 m and multiplication factor 100, height and distance come out of a single reading.

Technical data

Applications

Transferring levels in the shell and in interior fit out. Excavation, trenching and backfill where dust and wet load the instrument. Road and path construction with longitudinal and cross sections. Landscaping with fall checks. Work in halls and outdoors at high summer temperatures.

Compatibility and scope of delivery

The NA520 mounts on common construction and survey tripods via the 5/8 inch thread and works with standard levelling staffs. The delivery consists of the NA520 automatic level, the carrying case, the user manual on CD in 29 languages, an Allen key, a bent pick, the customer information and a Protect card. Tripod and levelling staff are not included.

Standards, origin and identification

The accuracy figure follows ISO 17123-2, the protection class is tested to IEC 60529. Original Leica Geosystems instrument, country of origin China, customs tariff number 9015301000, EAN 7640110696002. The instrument is purely optical and contains no battery.