Models DTM312A, DTM312B, DTM315A, DTM315B, DTM322A, DTM322B, DTM325A, DTM325B suits the measurement with target and prism. Angle accuracies are 2", 3" and 5". Detachable tribrachs are standard on all models. Other standard features are Optical Plummet, dedicated Number Keys, manual focusing. The 4, 000 points data memory can store stake out coordinates and/or collected data in any mix.
FEATURES:
1.Specialized knowledge of distance measurement.
***** quality telescope.
***** to operate with soft keys.
***** and clean displays.
5.Large quantity batteries.
***** functions for your select: Lay-off, Remote elevation, Offset, MLM, Area mea
SPECIFICATION:
Model DTM312A，DTM312B
DTM315A，DTM315B DTM322A，DTM322B
DTM325A，DTM325B
Telescope
Length 150mm
Magnification 30X
Image Erect
Shortest sighting dictance 1.0m
Additive constant 0
Objective lens aperture φ48
Resolving power 3.75〞
Field of view 1°30＇（26m/1000m）
Stadia proportion 100
Reticle illumination Provided
Angle measurement section
Horizontal angle panel Photoelectric incremental rotary encoder scanning, adopt diametrical detection
Vertical angle panel Photoelectric incremental rotary encoder scanning, with absolute 0 index point
Minimum display 1〞，5〞，10〞
Accuracy 2〞，5〞，10〞
Compensator
Type Single axis liquid tilt sensor
Range ±3＇
Accuracy ±1〞
Display resolution According to angle display resolution
Distance measurement section
Measureing range Average weather condition, visibility about 23.5km
Single prism 800m 1400m
Three prism 1200m 2200m
Minimum display Accuracy measurement mode: 1mm
Track mode: 10mm
Accuracy ±（3mm+2ppm?D）；±（5mm+5ppm?D）
Measuring time
Accuracy measurement mode 3SECOND
Track mode 0.8SECOND
Display
Display equipment Double sides 20-digit, 4-line dot matrix LCD panel with background illumination
Horizontal angle display range 0°～359°59＇59〞
Vertical angle display range 0°～359°59＇59〞或0°±89°59＇59〞-999.99%～999.99%
Applied meas
