Topcon GTS-823A - Manual (Page 133)

20-1
20 SPECIFICATIONS
20 SPECIFICATIONS
Telescope
Length
: 166mm
Objective lens : 50mm (EDM 50mm)
Magnification : 30 ×
Image : Erect
Field of view : 1°30'
Resolving power : 3"
Minimum focus : 1.3m
Focusing knob : 1 speed way
Automatic Tracking / Collimating
Maximum Automatic Tracking speed
: 12° /sec
Automatic Collimating area : ±5°
Automatic Tracking range *1:
Automatic Collimation / Tracking accuracy : 3” Standard deviation *2
Search pattern : Pattern 1 / Pattern 2
Search range : Any value can be set, able to set (1° step)
Safety standard for Laser Beam : Class 1 (IEC Publication 825)
Class ll (FDA/BRH 21 CFR 1040)
*1 Condition : Normal (Visibility about 20km), except high humidity time.
Automatic Tracking range of Reflector tape will differ depending on the kind of reflector tape.
*2 The air condition is stable and prism is staying.
A utomatic Collimation / Tracking accuracy is available only for prism use except for reflector
tape.
Manual Driving
Maximum rotating speed *
: 50° /sec
Coarse movement : Shuttle driving (in 7 steps)
Fine movement : Jog driving (minimum step about 1 second)
*By reverse, rotating instruction
Prism type 2, with 1 prism 8 to 800 m (26 to 2,625ft)
Prism Unit Type A2/A3/A3S 10 to 500 m (33 to 1,640ft)
Reflector tape (5cm × 5cm) 10 to 50 m (33 to 164 ft)