etailed Description
Detailed introduction to Total Station:
|
Model
|
DTM-122A
|
DTM-125A
|
|
Telescope
|
|
|
|
Length
|
150mm
|
|
Objective lens aperture
|
φ48mm
|
|
Magnification
|
30X
|
|
Image
|
Erect
|
|
Field of view
|
1°30(26m-1000m)
|
|
Resolving power
|
3.75
|
|
Minimum Focus
|
1m
|
|
Stadia proportion constant
|
100
|
|
Distance Measurement
|
|
|
Single Prism
|
1800m
|
|
Triple Prism
|
2600m
|
|
Accuracy
|
±(3mm+2ppm.D)
|
|
Angle measurement
|
|
|
Horizontal angle panel
|
Photoelectric incremental rotary encoder scanning,
adopt diametrical detection
|
|
Vertical angle panel
|
Photoelectric incremental rotary encoder scanning,
with absolute 0 index point
|
|
Accuracy
|
2 second
|
5second
|
|
Minimum reading
|
1second/5 second/10 second
|
|
Measuring time
|
|
|
Accuracy measurement mode
|
2 seconds
|
|
Track mode:
|
0.8 seconds
|
|
Compensator
|
|
|
|
Type:
|
Single axis liquid title sensor
|
|
Range:
|
±3'
|
|
Accuracy
|
±1"
|
|
Others
|
|
|
Level sensitivity
|
Plate level 30 second/2mm
|
|
Circular level 8 minut/2mm
|
|
Plummet
|
Optical pummet
|
|
Data output
|
Asynchronous serial in RS-232/USB
|
|
Weight
|
6.2kg
|
|
Power supply
|
Rechargeable battery BDC3000mAh 7.2v (Li-Battery)
|
|
Battery working time
|
8hours(DistanceMeasurement) 20hours(Angle Measurement)
|
|
Working temperature range
|
-20°C+45°C
|
