|
ET-02/ET-02L
|
ET-05/ET-05L
|
ET-10
|
|
|
TELESCOPE
|
|||
|
image
|
erect
|
||
|
magnification
|
30X
|
||
|
effective aperture
|
45mm
|
||
|
resovling power
|
3”
|
||
|
field of view
|
1°30’
|
||
|
minimum focusing distance
|
1.0m
|
||
|
stadia ratio
|
100
|
||
|
stadia constant
|
0
|
||
|
tube length
|
149mm
|
||
|
ANGLE MEASUREMENT
|
|||
|
reading system
|
absolute encoding
|
||
|
diameter of circle (VHz)
|
79mm
|
||
|
minimum reading
|
1”/5”/10” selectable
|
10”
|
|
|
accuracy
|
2”
|
5”
|
10”
|
|
detection method: hor.
ver.
|
dual
dual
|
dual
dual
|
dual
dual
|
|
DISPLAY
|
|||
|
(LCD) display type
|
2 sides
|
||
|
MEMORY
|
|||
|
internal memory
|
capacity for 256 pairs of H. & V. angle
|
||
|
LEVEL SENSITIVITY
|
|||
|
plate vial
|
30”/2mm
|
||
|
circular vial
|
10’/2mm
|
||
|
COMPENSATION
|
|||
|
system
|
liquid-electric detection
|
plate vial
|
|
|
working range
|
±3’
|
||
|
accuracy
|
1”
|
||
|
OPTICAL PLUMMET
|
|||
|
image
|
erect
|
||
|
magnification
|
3X
|
||
|
focusing range
|
0.5m ~ ∞
|
||
|
field of view
|
5°
|
||
|
PHISICAL CHARACTERISTICS
|
|||
|
laser pointer
|
ET-02L: yes
|
ET-05L: yes
|
NO
|
|
operating temperature
|
-20℃ ~ 45℃
|
||
|
water proof
|
IP66
|
||
|
internal power supply
|
Rechargeable Ni-H battery / AA battery
|
||
|
voltage
|
6VDC
|
||
|
operating time
|
10 hours/20 hours (battery pack)
|
||
|
dimension
|
L145 X H318 X W179mm
|
||
