Precision levelling set 30x 0.7 mm per km with tripod and 5 m staff - Leica NA730plus

Settlement and deformation measurements need figures an ordinary builders level cannot deliver. The Leica NA730plus reaches a standard deviation of 0.7 mm per kilometre of double run levelling at 30x magnification, and 0.4 mm for a single measurement at 30 m, while staying sealed to IP57 and therefore usable on site. The GST103 tripod and the 5 m CLR102 telescopic staff belong to the set.

Benefits

• 0.7 mm standard deviation per kilometre of double run levelling, more than three times as accurate as a standard builders level at 2.5 mm, which opens up settlement and deformation monitoring.
• 30x magnification with 3 arc seconds resolving power, plus a coarse and fine focus drive, so the staff is found fast and then focused exactly.
• 0.4 mm height accuracy for a single measurement at 30 m, so repeat measurements on the same points can actually be evaluated.
• IP57 protection to IEC 60529, a precision instrument that is still dust tight and protected against temporary immersion.
• Compensator with a plus/minus 15 arc minute working range and 0.5 arc second setting accuracy, the basis of a repeatable line of sight.
• Shortest target distance of 0.7 m at 1.7 kg instrument weight, the set stays manageable indoors and during machine alignment.

Technical data

Applications

Settlement and deformation measurement on structures and excavations, machine and plant alignment, crane rails and track, bridge and tunnel construction, height networks with tight closing tolerances and acceptance or evidential surveys.

Scope of delivery

• 1 x Leica NA730plus automatic level with 360 degree circle, material number 833190
• 1 x Leica GST103 aluminium tripod with carrying strap, material number 726833
• 1 x Leica CLR102 telescopic staff, 5 m, 4 sections, material number 727588

Compatibility and scope of delivery

A 5/8 inch mount for normal and ball head tripods. For precision work a heavy tripod and an invar or precision staff are worth adding, while the supplied GST103 with the CLR102 covers everyday site duty. Operation needs no batteries.

Standards and origin

The accuracy figure follows ISO 17123-2 and the IP57 protection class is rated to IEC 60529. Country of origin China, customs code 9015301000, EAN 7640180530466. Original set from Leica Geosystems, supplied without batteries.