Spectra Precision DET-2 User manual

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DET-2 Construction Theodolite
DET-2 stands for Digital Electronic
Theodolite, 2 Second
2 Arc Seconds is its angular
accuracy
Contractors ay also refer to this
instru ent as a Digital Transit, or
Transit
Generally used to ake sure things
are installed perfectly straight, or at
right angles to each other

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Construction Positioning
The DET-2 replaces conventional
ethods like string and batter-boards
Allows control of align ent and position
Target Trades:
General Contractors
Concrete Contractors
Residential Contractors
Underground/Utilities Contractors

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DET-2 Construction Theodolite
Highly Featured, Econo y Priced
1” or 5” selectable display
2” accuracy
Vertical Co pensation
Dual backlit displays and controls, large LCD
characters
Easy to use One-Touch buttons
Co pletely configurable via user software
Illu inated telescope
Recharge and backup alkaline packs included

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Theodolite
Applications

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Alignment
The DET-2 can be used
to align for s, footers
and anchor bolts

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Turning 90’s
The DET-2 can be used
to turn 90’s and check
angles

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Checking Plumb / Tilt Up alls
A theodolite can be set up on a
parallel offset to the line for
checking plu b
A steel scale can be used to
check a consistent offset
Tilt-up walls can be done using a
theodolite that’s set up on the
line of the wall and by checking
botto and top positions

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Gravity Flow Pipe / Utility ork
The DET-2 can be used
for Dialgrade / Pipe Laser
setups, including anhole
and pipe elevations, layout
and line setting
The unit co pli ents a
Dialgrade sale

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Basic Grade ork
Can be used for short
range grade work at very
steep angles
Only along the line of sight
Can be used for a run of
grade stakes

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Short Range Leveling
The telescope can be
set at 0.00%, 90º or 0º
(depending on Zenith
setting) for short range
leveling

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DET-2 Theodolite
Product
Features
Benefits

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aterproof Compact Carrying Case
The DET-2 Model nu ber is
clearly displayed on the outside of
the case for inventory
anage ent
Molded, closed-cell foa inserts
O-ring water seal
Easy to carry, with recharger,
backup alkaline battery pack,
ulti-language co prehensive
operating anual, tools and plu b
bob in custo pockets

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Rechargeable and Alkaline Battery Packs
Included
NiMH Recharge Kit and Backup
Alkaline Pack are BOTH
INCL DED
Easy to install and replace,
positive locking knob is exclusive
to the DET-2
Very long 36 hour battery life
No down ti e for the user due
to power loss
Battery Strength indicator for
better planning
User configurable Auto-Shutoff
Lowest Operating Costs Available

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Dual Displays and Controls
Less walking around the
instru ent, faster
operation when turning
90s
Telescope tangents and
locks have a positive
“feel”
Quick release tribrach
included

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Large LCD Characters, Backlit Display and
Telescope
Largest, easiest to read
characters on the arket
Both displays are backlit
Telescope is also illu inated
The DET-2 is useable
inside buildings, at dawn
and dusk
Greatly extended work
hours, especially in the
winter

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User Interface and Selectable Options
Si ple to use and intuitive
One-touch keys for 0-Set, V%, HOLD, and
Horizontal Right/Left
Large battery status display
User configurable Para eter Settings to
individual preferences or job
Unit of Angle (degrees, gon or 6400)
0 or 90° Zenith angle
Auto atic shutoff (30 inutes or Off)
1” or 5” display resolution
Tilt On-Off (Vertical co pensation)
90° Beep or No-Beep

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One-Touch Functions
%Grade - for slopes
Clockwise /
Counter Clockwise
angles - for less
calculation
Angle Hold - to hold a
particular angle and
transfer it to another
direction
Zero Reset - to set
the horizontal angle to
zero
Backlight and
Scope illu ination

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2” Accuracy, 1” or 5” Display Selection
A True, 2 Arc Second Instru ent
Vertical Co pensation
Can be turned on or off
Can be used for any construction
application
Display can be “de-cluttered” by
setting to 5” (si plifies
appearance)

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Vertical Compensation
Vertical compensation maintains the
accuracy of vertical readings, since the
plate vial is perpendicular to the telescope
Grades / Slopes (%)
Steep slope
Sometimes Vertical Compensation can
create problems
De os: The instru ent MUST be leveled before
de onstrating, and “TILT” is displayed when the
instru ent is oved around
Co pensation causes an error when a precise
vertical angle between two vertical points is
being easured
Can be turned off (TILT ON/OFF)(See
OPERATION AND DEMONSTRATION
section)
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