产品介绍

Product Introduction

1. Overview

NJTT-101A Multi angle Road sign Retroreflection Measuring Instrument is a specialized instrument used to measure the retroreflection coefficient (R ′) of traffic sign materials. Applicable to quality control and testing of retroreflective marking materials by material production units, quality supervision departments, engineering construction and supervision units, etc. 

2. Standard:

ISO 3864-1984,  International Commission on Illumination (CIE) No. 54,  ASTM E808-01, ASTM E809-00,  ASTM E810-00;  DIN 67520-1994, JT/T612-2004, GB/T18833-2012.

3. Main technical parameters

1. Observation angle（ α）： Continuously adjustable within the range of 0 º to 2.0 º, with a reading accuracy of 0.002 º;

2. Incident angle（ β）：- Continuously adjustable within the range of 45 º to+45 º, with a reading graduation of 1 º;

3. Color temperature of light source: 2856K (i.e. standard A light source);

4. Detector: Silicon diode, corrected by a filter to comply with CIE standard photometric observer spectral luminous efficiency V（ λ） Requirements for;

5. The opening angle of the detector aperture to the sample: 12 ';

6. Measurement range of retroreflection coefficient: 0-3000cd · lx-1;

7. Resolution: 0.1 cd · lx-1;

8. Power supply: Lithium battery power supply, continuous working time of 48 hours.

9. Can calibrate 12 pairs of angles at once

10. Data storage: 10000 test messages

11. Screen: 4.5 "854x480 (touch screen)

12. Storage method: TF storage card

13. Charging method: 220V AC 50HZ; DC8.4V

14. Power supply: Lithium battery (6600mAh)

15. Operating temperature: -10 ° C~+40 ° C

16. Storage temperature: -30 ° C~+75 ° C

17. Operating humidity: 10~90%, no condensation