Specifications for the Nikon DTM-322+ Total Station

General

WeightMain Unit with Batteries: 10.10 Lb., Carrying Case: 5.3 Lb.Dimensions6.6 x 6.8 x 13.2 (168mm x 173mm x 335mm)Warranty2 YearsProtection ClassDust and water protection - IP55Internal Memory25,000 RecordsTribrachYes

Angle Measurement

Measuring Method/Reading SystemIncremental encoderDetection MethodPhotoelectricMinimum Reading1 second/5 second/10 secondAccuracy0.6 mgonDiameter of Circle3.46 (88mm)

Distance Measurement

EDM Accuracy (Precision)±(3+2 ppm × D) mm

Tilt Sensor/Compensator

Range±3TypeSingle-axisMethodLiquid-electric detectionSetting Accuracy±1

Battery/Power

Power Source4 × AA rechargeable batteriesBattery LifeUp to 15 hours

Optical Plummet

ImageErectMagnification3xField of View5°Focus Range0.5 m (1.6 ft) to infinity

Level

Plate/Tubular Bubble Vial30 seconds /2 mmCircular Bubble Vial10 minutes /2 mm

Telescope

Length of Tube6.2 in (158 mm)ImageErectDiameter of Objective Lens (Aperture)45 mm (1.77 in)Magnification33x (21x/41x with optional eyepieces)Field of View1°20Resolving Power2.5Minimum Focus Distance1.5 m (4.92 ft)

Display and Keypad

TypeGraphic LCD displaySidesDual faceKeysFull numeric keypadsBacklightYesPixels128 × 64 pixels

Temperature

Operating–4 °F to +122 °F (–20 °C to +50 °C)

Applications

Surveying and ConstructionYesUtilitiesYes

Measurement Range (under fair weather conditions)

Single Prism2,000 m (6,560 ft)Triple Prism2,600 m (8,530 ft)Mini Prism1,000 m (3,280 ft)Reflector Sheet5 m to 100 m (16.4 ft to 328 ft)