Spectra Precision DET-2 User Manual

DET-2 Applications

• Establishing 90 degree

reference lines

• Checking angles,

alignment, and plumb

• Anchor bolt alignment

• Gravity flow pipe laser

setup

• Steel column placement

• Alignment of forms, tilt-up

walls, and curtain walls

• Basic grade work

• Short range leveling

Spectra Precision DET-2

Electronic Theodolite

Full Featured Angle Measuring
Digital Electronic Theodolite

The Spectra Precision® DET-2 is a rugged, cost­effective theodolite designed to give accurate
angle measurements in general construction
applications. The affordable, versatile, easy to
use instrument and accessories will increase
your productivity when turning angles and setting
elevations and lines.

The DET-2 has a large liquid crystal display on
both sides of the instrument with big, easy to read
characters. A built-in reticle illuminator and LCD
back-lighting can be turned on if needed in low
light conditions with a single press of a button.
A six button keypad provides easy access to
the most common functions. An optical plummet
allows quick setup over a control point. Simple
intuitive operation will have your crew in the field
being productive without any special training.

A 2” accuracy specification along with vertical
axis compensation ensures the DET-2 will be
accurate enough for your most demanding job
requirements. High quality optics and a 30x
magnification telescope with a short minimum
focus distance provides for clear, sharp viewing
at both long and very short distances.

Various display modes ensure the operator has
the most efficient settings for the job at hand.
Angle display readings of 1” or 5” are selectable
to meet any operator’s preferences for fast
readings. The horizontal angle hold and clockwise
or counterclockwise angle measurement can be
selected with one touch of a button. Setting the
horizontal angle to “0” is also a simple, single
press of a button. The vertical angle can be
instantly converted to percent of grade.

A setup mode allows user customization of the
unit. The options include turning the audible
tones on or off for right angle notification, units
of angle measurement of degree, gon, or mil, and
selection of the vertical angle zero position.

Basic distance measurement can be easily
calculated using the stadia hairs on the telescope.

The DET-2 comes equipped with both a NiMH
rechargeable battery pack and charger and an
alkaline battery pack that utilizes 4 standard
AA sized batteries. The rechargeable batteries
are efficient and lower operating costs, but the
alkaline backup is the perfect solution when
there is not enough charge to finish a project. The
battery packs have a positive action locking knob
for confident, secure fitting on the instrument.
Battery strength is indicated on the LCD’s for
efficient planning. An automatic shut-off can be
selected for higher battery efficiency.

The DET-2 has an IP54 environmental rating and
is designed to withstand the harsh conditions of
the construction jobsite.

Each DET-2 comes equipped with a plumb bob,
NiMH rechargeable battery pack and charger,
alkaline battery pack, adjustment tools, rain hood,
multi-language user guide, and a hard-shell
carrying case.

Extra Large Characters and Simple Control Panel

Spectra Precision DET-2 Theodolite

Accurate, Affordable, and Easy To Use

DET-2 Features and Benefits

• 2” angular accuracy - accurate enough for any

construction job, yet the display resolution can
be tailored to any operator’s preferences for fast
readings

• Vertical axis compensation - tilt sensor provides

the highest level of accuracy and can be turned
on or off depending on job requirements

• Dual LCD with large characters - easy to see

angle readings eliminate errors and reduces eye
fatigue

• Back-lit LCD and telescope reticle - allows work

in low light conditions including indoors and
extended hours near dawn and dusk

• Simple six button keypad - quick setups and

simple operation with low operator learning curve

• Large suite of programmable settings - provide

multiple options for various users and job
requirements including zero position of vertical
angle

• Measurement units in degrees, gon, or mils

• 90 degree angle audible notification - for quick

turning and set out of right angles

• Instant conversion of vertical angles to percent of

grade - convenient for slope work and when used
in conjunction with DialGrade

• NiMH rechargeable battery pack and charger -

lower operating cost with reusable batteries

• Alkaline battery pack standard - provides backup

and eliminates downtime if the charge is lost in
the middle of a job

• Battery status indicator - no power surprises and

allows for better planning

• Automatic shutoff - conserves battery life when

not in use - can be disabled if desired

• IP54 environmental rating - dust and water

resistance withstands the tough conditions of
the construction environment

®

pipe work.

DET-2 Specifications

Telescope

Image ....................................Erect

Magnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30x

Aperture. . . . . . . . . . . . . . . . . . . . . . . . . . 45 mm (1.7 in)

Focus Distance ...........1.35 m to ∞ (4.43 ft) to ∞

Field of View ..............................1˚ 30’

Stadia Ratio / Constant ....................100 / 0

Optical Plummet

Image ....................................Erect

Magnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3X

Angle of view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5˚

Focusing range ..............0.5 m ~ ∞ (1.6 ft ~ ∞)

Reticle type ...........................Crosshair

Angle Measuring System

Minimum Reading . . . . . . . . . . . . . . . . . . . . . . .1” or 5”

Precision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2”

Units .......................Deg / mil / gon / V %

Display ........Dual, Large Character, Backlit LCD

Tilt Sensor

Automatic Compensation .............. ±3’ Range

User set On/Off

Vials

Tubular ...............................30”/2 mm

Circular . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8’/2 mm

One Touch Button Functions

ON / OFF .................................Power

☼ . . . . . . . . . . . . . . . Backlight / Illumination On / Off

HOLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Angle Hold

R/L ......Clockwise/Counterclockwise Measurement

0SET . . . . . . . . . . . . . . Zero Reset of Horizontal Angle

V%. . . . . . . . . . . Convert Vertical Degrees to Percent

Dust/Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP-54

Operating Temperature ............ –20°C to +50°C

(–4°F to 122°F )

Size - Instrument . . . . . . . . . . . . . . 164 x 154 x 340 mm

(6.4 x 6.1 x 13.4 in)

Weight - Instrument . . . . . . . . . . . . . . . . 4.5 kg (9.9 lb)

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Year

Each DET-2 comes equipped with a plumb bob,

NiMH rechargeable battery pack and charger,

alkaline battery pack, adjustment tools, rain hood,

multi-language user guide, and hard-shell,

compact, o-ring sealed, carrying case

YOUR LOCAL SPECTRA PRECISION REPRESENTATIVE

www.trimble.com/spectra

© 2009, Trimble Navigation Limited. All rights reserved. Trimble, the Globe & Triangle logo and Spectra Precision are
trademarks of Trimble Navigation Limited, registered in the United States Patent and Trademark office and in other countries.
All other trademarks are the property of their respective owners.

PN 022507-106A (07/09)

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[phone] Phone • [phone] Fax

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