Pentax ETH-310 - Manual (Page 46)

46
Vertical axis
Single
Sensitivity of vials
Plate vial
ETH-302 30”/2 mm
ETH-305 30”/2 mm
ETH-310 40”/2 mm
ETH-320 40”/2 mm
Circular vial 8’
Tribrach type
Detachable
Optical plummet
Magnification
3 x
Focusing range 0.5 m to Infinity
Power source
Type
4 x AA dry battery
Operation time (Alkaline) 25 to 28 hrs.
(NiMH2300mAh) 25 to 28 hrs.
Water resistant
IP x4
Ambient temperature
- 10 °C to + 50 °C
Height
215 mm
Dimensions
Instrument (including batteries)
W168 x H330 x L158mm/4.6kg