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Faster initial distance measurement of only 1 sec., with 0.5-sec. updates in normal mode and 1.0-sec. updates in precise mode |
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Higher distance accuracy of ±(2 + 2ppm x D)mm in precise mode and ±(4 + 2ppm x D)mm in normal mode |
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Higher distance resolution of 0.1mm in precise mode (1mm in nomal mode) |
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Nitride-finished steel horizontal-axis with a zero-clearance ball bearing design for high angle stability and DIN 1" accuracy with
0.5" reading (DTM-552) |
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Lighter weight of 5.5kg/12.1 lbs., including battery |
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Longer battery life of 10.5 hrs. continuous distance/angle measurement, or 24 hrs. with one distance measurement every 30 sec. |
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New large graphic display |
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Ergonomic keyboard design with direct numeric input and unique function keys suited to field use |
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Convenient alphanumeric code input methods |
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100% software resume function |
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IPX4 all-weather construction |
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Lumi-Guide with Right/Left and In/Out distance information |
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Compact, high-quality telescope |
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Powerful and practical on-board programs |
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 Simple key names enable quick-and-easy access
to STN setup, measurement (MSR1/MSR2), and other common operations from the basic measuring screen. Two USR keys provide direct access to favorite functions
and programs. |
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 Recorded data
can be stored for up to 32 separate jobs. Data in a job file can easily be checked, edited, deleted, input and searched directly on the instrument. Also,
survey control point coordinates can be stored in a job file that is accessible from other jobs. Up to 10,000 records can be stored in memory.
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| Various code input methods have been implemented on the DTM-502, greatly improving convenience and efficiency when recording many points in the field.
In addition to direct code input and a stack of previously used codes, Quick Codes can be set up for 10 ‘one touch’ keys, and a user-defined code
list can be created. Quick Codes work by assigning frequently used codes to numeric keys 0 through 9. Once the desired codes are set, simply aim at the
target and press one of the preset keys to measure and record a point with full coding. |
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Various offset measurements are available on board as well as dynamic vertical/horizontal angle offset and taped offset.
 
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Some settings are changed frequently in the field. With the unique HOT key and the MSR key, settings can be quickly changed without interrupting work
flow.
  
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By simply pressing the DSP key, the measured data displayed is scrolled through various standard sets that suit different field requirements. Because the
display can be switched before,
during and after a measurement, it is not necessary to select your desired display before measuring. Some measurement and stakeout screens are user-configurable
to suit operator preferences. |
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| Data can be downloaded and uploaded to a PC with readily available standard communications software. The user's personal code list can also be uploaded.
Flexible formats are supported for both uploading and downloading, thus communication with third party PC software can be performed with fewer steps. Of
course, TransItTM transfer and conversion software is also available. |
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 New advanced technologies include a lightweight
EDM and a lightweight long-life battery. The DTM-502 weighs only 5.5 kg / 12.1 lbs. with its battery and is water-resistant to IPX4 standards,
which state: “Water splashed against the enclosure from any direction must produce no harmful effects. |
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All DTM-502 Series models feature Nikon's unique Lumi-Guide red tracking light above the telescope objective lens.
The Lumi-Guide emits two(2) visible beams of coherent red light, one steady and one blinking, enabling the rodman to locate the correct line quickly
and easily by finding the position where both are visible.
In addition, during stakeout the blinking cycle changes to indicate if the rodman needs to ‘come’ or ‘go’ to reach the
design position.
In addition to indicating the stakeout direction, the Lumi-Guide can be used as a convenient signal to the rodman, assists in one-man clearing of
lines and works as a prism illuminator in night surveying. |
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