DTM-501 Series Total Stations
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Features:
Long Battery Life
Faster More Accurate Distance Measurement
Newly Designed Compact, Stable Telescope
New LLV (Low Light Visible) Green Color
Large LCD and Ergonomic Keyboard
Accurate and Stable Angle Measurement
Compact and Lightweight, with IPX4 All-Weather Construction
A single BC-80 clip-on battery provides approximately 10.5 hrs. of continuous distance/angle measurement, or 24 hrs of one measurement every 30 sec., which means an entire day's work can be performed without having to change the battery. The lower power consumption pattern of the DTM-501 Series also mnimizes memory effect on the battery.
Digitization and clever integration of electronic parts in the DTM-501 Series have resulted in a compact and lightweight ECM that boasts an initial distance measurement speed of just 1.0 sec. Accuracy of ±(2 + 2 ppm x D)mm in MSR mode and ±(4 + 2ppm x d)mm in TRK mode is assured, and distance can be displayed in either 0.1mm or 1mm resolution. New multiple-reflection-correction software means that measurements taken using reflector sheets are as fast and accurate as those taken with glass prisms.
Nikon's unique optical system has been further improved for even clearer sighting in all conditions, for example oblique or low-light situations. The new telescope employs a unique linear focusing mechanism that improves focusing at both short and long distances. the focusing knob has also been newly designed to improve ergonomics and operational feeling.
To increase on-site safety and identification of the instrument, the new LLV green color was chosen for the DTM-501 Series.
The keyboard arrangement is ergonomically and logically designed for easy operation and efficiency in the field situations. The keyboard materials have been strictly reviewed and selected for heavy use in harsh environments. The DTM-501's full-cursor keys, menu key, mode key, and HOT key provide easy access to job managing operations, frequently adjusted settings, view/edit of data and a variety of timesaving feature code input methods such as Quick Codes and a stack of previously input codes. The full numeric keyboardis essential for convenient input of angle and target.
New advanced technologies include a lightweight EDM and a lightweight long-life battery. The DTM-501 weighs only 5.5kg / 12.1 lbs. wiht its battery and is water-resistant to IPX4 standards, which state: “Water splashed against the enclosure from any direction must produce no harmfull effects.”
Specifications:
DTM-551 DTM-531 DTM-521
Telescope:
Tube Length: 158mm / 6.22 in.
Image: Erect
Magnification: 33x (21x/41x with optional eyepieces)
Objective Lens Diameter: 45mm (EDM: 50mm)
Field of View: 1º20' (2.3m at 100m/2.3ft at 100ft.)
Resolving Power: 2.5"
Reticle Illumination: Provided (3 Steps)
Minimum Focus Distance: 1.3m 4.26 ft.
Distance Measurment:
Under Good Conditions No haze with visibility over 40km/25miles
With Reflector Sheet: 5 to 100m / 16.4 ft. to 328.1 ft.
With Mini Prism: 1,100m / 3,600 ft.
With Single Prism: 2,700m / 8,900 ft.
With Triple Prisms: 3,600m / 11,800 ft.
With Nine Prisms: 4,400m / 14,400ft.
Under Normal Conditions Ordinary haze with visibility about 20km / 12.5 miles
With Reflector Sheet: 5 to 100m / 16.4 ft. to 328.1 ft.
With Mini Prism: 950m / 3,100 ft.
With Single Prism: 2,400m / 7,900 ft.
With Triple Prisms: 3,100 m / 10,200 ft.
With Nine Prisms: 3,700 m / 12,100 ft.
Readout Display:
9999.9999m / 29999.999ft.
Accuracy:
MSR Mode: ±(2 + 2ppm x D)mm
TRK Mode: ±(4 + 2ppm x D)mm
Least Count:
MSR Mode: 0.1mm / 1mm, 0.001 ft./0.002 ft. selectable
TRK Mode: 1mm / 10mm, 0.002 ft. / 0.02 ft. selectable
Measuring Intervals:
MSR Mode: 1.0 sec (initial 1.0 sec.)
TRK Mode: 0.5 sec. (intitial 1.0 sec.)
Ambient Teperature Range:
-20º C to 50º C / -4ºF to 122ºF
Atmospheric Correction:
Temperature Range: -40ºC to 50ºC / -40ºF to 140ºF
Barometric Pressure: 400 to 999mhg/533 to 1332hpa/15.8 to 39.3 in. hg
Prism Offset Correction: -999 to 999
Angle Measurment:
Reading System: Photoelectric Detection by Incremental Encoder ( Diametric Detection for H/V Circles)
Diameter of Circle: 79mm
Minimum Increment:
Degree: 0.5" / 1" 1" / 5"
Gon: 0.1mgon / 0.2mgon 0.2mgon / 1mgon
MIL6400: 0.002mil / 0.005mil 0.005mil / 0.02mil
Accuracy (horizontal and vertical): 1" / 0.3mgon 2" / 0.5mgon 3" / 1mgon
Dual-Axis Compensator:
Methode: Liquid-Electric Detection
Compensation Range: ±3'
Setting Accuracy: ±1"
Lumi-Guide:
Working Range: 100m/330 ft.
Positioning Accuracy Within Approx. 6cm / 2.4in. at 100m / 330 ft.
Level Vials:
Sensitivity of Plate Level Vial: 20" / 2mm 30" / 2mm
Sensitivity of Circular Level Vial: 10' / 2mm
Optical Plummet :
Magnification: 3x
Focusing Range: 0.5m / 1.6 ft. to Infinity
Image: Erect
Field of View (at 1.3m): 5º
Dimensions:
W x D x H: 166 x 156 x 365mm / 6.5 x 6.1 x 14.4 in
Display:
Type: Dot-Matrix LCD (16 Characters x 4 lines) on both sides
Point Memory:
Raw / Coordinates: 8,000 Points
Weight:
Main Unit ( without battery): 4.9 kg / 10.8 lbs
BC-80 Clip-On-Battery: 0.6kg / 1.3 lbs.
Plastic Carring Case: 4.0 kg / 8.8 lbs.
Clip-On Ni-MH Battery BC-80:
Output Voltage: 7.2V DC
Operating Time: Approx. 10.5 hour ( Continuous Distance / Angle Measurment )
Quick Charger Q-75U:
Recharging Time: Approx. 2.0 Hours for Full Charge
Discharge Time: Approx. 7.5 Hours
Quick Charger Q-70C ( 12V-DC, Cigarette Lighter Charger):
Recharging Time: Approx. 2.0 Hours ( fully discharged BC-80 requires more than one charge )
