Pentax ETH-310 Vertical axis, Sensitivity of vials, Tribrach type, Optical plummet, Power source

Models: ETH-310 ETH-302 ETH-305

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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

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Pentax ETH-310 Vertical axis, Sensitivity of vials, Tribrach type, Optical plummet, Power source, Height, Dimensions