Levels

SDL30

RAB-Code Staffs Digital Level

The Invar RAB-Code staffs provide superb accuracy of 0.6mm. The Fiberglass RAB-Code staffs provide 1.0mm accuracy and have conventional graduations on the reverse side for visual measurements. The SDL30 is an accurate, dependable digital level. Used with Sokkia’s unique RAB-Code (RAndom Bi-directional Code) staff, measurement and data recording can be automated to dramatically enhance levelling work. The results are indicated digitally on an LCD display. The internal memory is capable of recording up to 2,000 points of data in maximum 20 job fi les.

BGS40•BGS50 SDL30 SDL30 SPECIFICATIONS Height accuracy* (with RAB-Code Staffs) 0.6mm (with invar BIS20/30), 1.0mm (with Fiberglass BGS40/50/50G3) Distance accuracy (with RAB-Code Staffs)Up to 10m: Within 10mm, 10m to 50m: Within 0.1% x D (D=measuring distance) Measuring range (with RAB-Code Staffs) 1.6 to 100m Minimum display (Single, Repeat, Average) Height Fine: 0.0001m/0.001m, Distance: 0.01m Measuring time Single mode: Less than 3s, Tracking: Less than 1s Telescope magnifi cation 32x Compensator Type: Pendulum compensator with magnetic damper, Working Range: 15’ Horizontal circle Graduation: 1° (1gon) / Estimation: 0.1° (0.1gon) Data storage Approx. 2,000 points with max. 20 job fi les, File name is user-defi nable, Max. 12 characters Weight w/battery / batterylife 2.4kg / 13 hours* Standard deviation for 1km double-run leveling.

B1C·B1·B20·B21

Automatic Levels

B1C B20-B21

Sokkia provides a wide range of automatic levels to suit your specifi c needs. All models incorporate exclusively designed precision compensators that employ a magnetic damping system for outstanding accuracy and dependability. The B20 and B21 are IPX4 compliant water resistant.

B1 TTL6 B1C, B1, B20, B21 & TTL6 SPECIFICATIONS B1CB1B20B21TTL6 Telescope Objective aperture45mm 42mm 40mm Magnifi cation 32x 30x 25x Minimum focus 2.3m 0.3m 1.8m Accuracy Standard deviation for 1km double-run leveling n / a Without micrometer 0.8mm 1.0mm 1.5mm 2.0mm With micrometer 0.5mm 0.8mm 1.2mm n / a

TTL6

Compensator Type 4 wire pendulum compensator with magnetic damping system n / a Working range ±10’ ±15’ n / a Horizontal circle graduation 1°(1gon) n / a 1°(1gon) 1°(1gon) Water resistance n / a IPX4 (IEC60529) n / a

Tilting Level

Weight 3.2kg 3.0kg 1.85kg 1.9kg

The TTL6 provides standard deviation of 2.0mm for 1km double-run levelling. 16