Sokkia SDL30 Operator's Manual page 78

The coefficient of linear expansion: α=20 x 10
Aluminum staff
BAS55:
The coefficient of linear expansion : α=24 x 10
Measurement
Horizontal circle:
Measuring range:*1
Height
Distance
Minimum display:
Height
Distance
Accuracy:*1
Height
SDL30:
Electronic Measurement
Visual Measurement
50mm (W) x 27.8mm (D) x 5005mm (H)
(5 sections)
{2.0in. (W) x 1.1in. (D) x 16.4ft (H)}
1.9kg (4.2lb.) (one staff) 2.2kg (4.9lb.)
(one staff and case)
Diameter: 103mm
Graduation:1° / 1gon
0 to 4m (13.3 ft) (with BGS40 staff)
0 to 5m (16.7 ft) (with BGS50 staff)
SDL30:
0.0375 to 1.9305m (0.124 to 6.333 ft)
(with BIS20 staff)
0.0375 to 2.9725m (0.124 to 9.752 ft)
(with BIS30 staff)
1.6 to 100m
0.0001m / 0.001m (0.001 ft/0.01ft) (selectable)
(single, repeat, average or Wave-and-Read
mode)
0.001m / 0.01m (0.01ft/0.1ft) (tracking
mode)
0.01m (0.1ft) (single, repeat or average
mode)
0.1m (1 ft) (tracking or Wave-and-Read
mode)
(with SOKKIA staff BGS40/50 or BIS20/30)
Standard deviation for 1 km of double-run
0.6mm (0.03in.) (with BIS20/30)
1.0mm (0.04in.) (with BGS40/50/50G)
1.2mm (0.047in.) (with BAS55)
1.0mm (0.04in.) (with BGS40/50/50G)
1.5mm (0.06in.) (with BAS55)
°
-6
/ C
°
-6
/ C
77