Accuracy +/- 1.5mm per 30m

Who and what is the 3185 designed for ?

The David White 3185 is a motor driven, electronic self-leveling single grade laser designed drainage and civil earthworks applications. With its 850m operating range and accuracy of 1.5mm per 30m (10” sec arc), it is well suited to long range contracting applications.

The David White 3185 features a single grade range of -10% to +15% with a clear LCD Display. When the single grade is entered, e.g. 2.25%, the laser self levels at the desired slope while still maintaining cross axis leveling at the same time.

Grade increments are 0.01% from 0 to 2.5%, 0.05% increments from 2.5 to 15%

What functionality does the 3185 have ?

What are the Specifications ?

3185 Laser Range : 425m radius / 850m diameter Accuracy : +/-1.5mm per 30m (10 sec arc) Rotation coverage : 360 degrees Rotation speed : Variable Power supply : four 'D'' cell alkaline batteries Grade Range : -10 to +15% Battery Life : 60 hours approx with alkaline batteries Weather Protection : IP54 Water & Dustproof

LD18N receiver 3 accuracy modes : +/- 0.75mm fine, +/-1.5mm std, +/-3mm coarse Speaker volume : off, low, med, high Reception angle : 90 degrees Power supply : 9V alkaline battery Displays : Front and rear Elevation display : 7 channel

Calibration

Once shipped from the manufacturer, Accurate Instruments Optical and Electronic Service Centre calibrates all
instruments on collimators and ranges then fits them with the appropriate shockwatch, calibration sticker and
test calibration certificate. Shockwatches indicate to the user whether the instrument has been dropped.

What is the standard package ?

A standard construction package usually consists of the laser, receiver, heavy duty aluminium tripod, carry case,
shockwatch, alkaline batteries, calibration sticker and Test calibration certificate.

Optional staves and re-chargeable battery kits etc are also available.

Please phone to discuss a package to suit your requirements.