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Home Pentax Theodolite Pentax ETH-300 Series

Theodolite Pentax ETH-300 Series

Theodolite Pentax ETH-300 Series

ETH-300 Series Electronic Theodolite Pentax

Building the future
The new ETH-300 series reflect angle accuracy and have an easy to see Pentax red side for safety and recognition.There are 4 models in the range providing a choice of 2”(0.001G),5”(0.001G), 10”(0.002G) or 20”(0.005G) accuracy.

Applications
•    Setting out right angles and checking plumb
•    Alignment measurements
•    Anchor bolt layout
•    90°layout

Key Features include:
•    Easy to read-display
•    Zero set and reverse angle display
•    Powered by Alkaline batteries

Easy to read-display
A 16 characters x 2 line liquid crystal display (LCD) is incorporated on both sides of the instrument. Both vertical and horizontal angles are displayed in degrees or gon.

Easy key operation
A row of soft keys allows simple and fast operation

Easy to use
•    Lightweight and compact
•    The basic instrument weighs only 4.6 kg or 10 lbs. 2 oz. (including battery)

Automatic power-off function
Automatic power-off prevents unnecessary battery drainage. The remaining battery capacity is indicated on the display.

Angle measurement and Angle control
•    Clockwise and counter-clockwise angle measurement
•    Conversion of the vertical angle to a percentage grade
•    Zero setting of the horizontal angle at any position
•    Horizontal angle ‘Hold’key function

Bright optics
All the models have a bright 30x magnification telescope which ensures sharp and clear images even in poor light conditions.

 

ETH-300 Series

ETH-302

ETH-305

ETH-310

ETH-320

Telescope

Magnigication

30 x

Objective aperture

45 mm

Resolving Power

3”

Field of view

1°30’

Minimum Focusing Distance

1.35 m

Stadia ratio

100

Stadia constant

0

Focusing

2 Speed

Angle Measurement

Type

Incremental

Reading System

Vertical

Single

Horizontal

Dual

Minimum Display

5”/ 1 mgon

5”/ 1 mgon

10”/ 2 mgon

20”/ 5 mgon

(1”/5”selectable)
(0.2 /1 mgon)

(1”/5”selectable)
(0.2 /1 mgon)

(5”/10”selectable)
(1 /2 mgon)

(10”/20”selectable)
(2 /5 mgon)

Accuracy (DIN1 8723)

2”/ 0.6 mgon

5”/ 1.5 mgon

10”/ 3 mgon

20”/ 6 mgon

Unit of Angle

360°/ 400 g / 6400 MIL

Display

Type

dot matrix LCD

Display Panel

2 sides

Key Panel

English

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ETH-300 Series

ETH-302

ETH-305

ETH-310

ETH-320

Vertical axis

single axis

Compensator

Yes

No

Water Resistance

IPX 4

Sensitivity of Vials

Plate Vial

30”/ 2 mm

40”/ 2 mm

Circular Vial

8’/ 2 mm

Warning Buzzer

YES

Optical Plummet Telesc.

Magnification

3 x

Focus Range

0.5 m ~ ∞

Power Source

Type

4 x AA Dry Battery

Operation Time

Alkaline 30 hrs./ (NiMH 15 hrs)

Ambient Temperature

-20°C - + 50°C

Size and Weight

Body

W 168 x H 330 x L 158 mm

Weight

4.6 kg / 10 lbs.2 oz

 

Newsflash

Dalam melakukan pengukuran kemungkinan terjadi kesalahan pastilah ada, dimana sumber kesalahan atau permasalahan tersebut, antara lain :

a. Kesalahan yang bersumber dari pengukur
b. Kesalahan yang bersumber dari alat
c. Kesalahan yang bersumber dari alam.