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Retroreflectometer of a road marking DELTA LTL 3000

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Retroreflectometer of a road marking DELTA LTL 3000
Specifications
Dimensions: 573 x 222 x 538 mm
Case Material: Aluminum
Keyboard: Covered with film
Measurement memory, near: 200,000
Battery: 12V, 1.3A/h
Measured area: Length 50 mm, width 200 mm
GPS module: Integrated
Printer: Built-in

Manufacturer: Delta

LTL3000 is part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings. The instrument is based on the latest technological developments and with modern design and materials. LTL3000 is, like all other DELTA instruments, very easy to calibrate and operate, we like to say “very user-friendly”. And the instrument is of course robust and long lasting – like our earlier generations of road marking retroreflectometers – and on top of this small in size (420 x 300 x 150 mm / 16.5 x 11.8 x 5.9 inch) and light in weight (4.7 kg / 10.4 lbs.).

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LTL3000 is part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings. The instrument is based on the latest technological developments and with modern design and materials. LTL3000 is, like all other DELTA instruments, very easy to calibrate and operate, we like to say “very user-friendly”. And the instrument is of course robust and long lasting – like our earlier generations of road marking retroreflectometers – and on top of this small in size (420 x 300 x 150 mm / 16.5 x 11.8 x 5.9 inch) and light in weight (4.7 kg / 10.4 lbs.).

LTL3000 is primarily intended for users who need an instrument for less demanding measurement programs, who want an instrument which is easy to transport and who do not need many features to support the measurements. LTL3000 come in two versions: LTL3000 R which measures night visibility (RL) and LTL3000 RQ which measure both night visibility (RL) and daytime visibility (Qd).

The instrument complies with international standards like: EN 1436, ASTM E 1710, ASTM E 2177, ASTM E 2302, ASTM E 2367.

General features
  • Measurement time less than 1 sec for both RL and Qd
  • Measures RL on profiled markings up to 15 mm / 0.6 inch
  • Memory capacity more than 1 mio. measurements
  • Multiple language
  • Easy-readable color touch LED display with 3 buttons
  • Long-life illumination system
  • USB memory stick interface
  • Power supply, standard Bosch professional battery
  • Stray light compensated
  • Single handed operation, user-friendly
  • Shows and stores day and time
  • Facility for entering and storing road ID and user ID
  • Data presentation in MS Excel format

Optional features

  • RL and Qd for dry & wet markings (RL is standard delivery, Qd is optional)
  • GNSS positioning
  • Nighttime color (x,y) for RL measurements

Support features

  • GNSS positioning (optional)
  • Shows and stores day and time
  • Facility for entering and storing road ID and user ID

Performance

LTL3000 measure all types of road markings at a simulated distance of 30 m with a high accuracy. The instrument operates with a reproducibility of +/- 5 % and a repeatability of +/- 2 %.

LTL3000 measures Qd (daytime visibility) and RL (nighttime visibility) under dry and wet conditions. LTL3000 measures RL from 0 to 4.000 mcd/lx/sqm and Qd from 0 to 318 mcd/lx/sqm. LTL3000 can in addition measure nighttime chromaticity coordinates (x,y) according to ASTM E 2367 and CIE 1931.

LTL3000 has automatic stray light compensation. Daylight and other outside light sources will not affect the accuracy of the measurements.

LTL3000 measurements can be exported to commonly available software like MS-Excel format.

Add-on features

LTL3000 comes as a base unit model with the option of adding additional features: GNSS, nighttime color and Qd measurement.

Calibration standards

LTL3000 instruments are for RL calibrated by DELTA in our DANAKaccredited laboratory in accordance with ISO 17025 and assuring traceability to PTB (Physikalish-Technische Bundesanstalt, Germany) and NIST (National Institute of Standards and Technology, USA).

Qd is calibrated in DELTA’s calibration laboratory after which the LTL3000 instrument during field calibration will carry out self-control of the Qd calibration. The recommended daily calibration of the instruments is simple and easy to carry out.

Manufacturer
Manufacturer Delta
Technical specifications
Measured area Length 50 mm, width 200 mm
Interface to PC RS-232
Horizontal aperture of lighting 0,17
The aperture of the lighting of the observation 0,17
Vertical aperture of lighting 0,33
Working conditions 0… + 45 ° C without condensation
Storage conditions -15…+55°С without condensation
GPS module Integrated
Viewing angle: 1,05
A printer Built-in
Body material Aluminum
Keyboard Coated with Film
Measurement memory 1000…1500
Storage battery 12В, 3,5 А / h
Dimensions 420 х 150 х 300 mm
Weight 4,7 kg