Operation steps of the retroreflective coefficient measuring instrument for reflective markings

The operation steps of the retroreflective coefficient measuring instrument for reflective markings are as follows:

1. Turn on the instrument power switch (at the instrument panel). At this point, the header number is “000.” indicating that the internal power supply of the instrument has been connected. If the indication is not “000.”, please use the zero adjustment knob to adjust it to “000.”.
2. Turn on the instrument light door switch (in the middle position of the instrument, pull out the knob about 30mm away from the chassis, do not pull it hard) and calibrate it at the same time: This instrument comes with a standard calibration board, on which calibration data is indicated. Place the measuring port at the bottom of the instrument on top of the standard board (the standard board has directionality, and the arrow points towards the driving direction), and press the measurement knob (the red button on the instrument panel). At this point, the instrument will display data. If it is not the given accuracy value, please adjust the calibration knob until the header data shows the calibration value.
3. If there is a change in the calibration zero point, calibrate again until it displays correctly.
4. After the calibration and zero adjustment operation is completed, lock the knob. At this point, measurements can be taken.
5. When measuring, the instrument is placed on the marking and aligned with the direction of the vehicle. According to the requirements of reflective marking measurement technology, five points must be selected. Record the measurement results of each point and take the arithmetic mean, which is the reflection coefficient of the marking.
   Cover force test paper for related equipment
   Technical parameters of the retroreflective coefficient measuring instrument for reflective markings:
   Measurement range: 0-1999 (unit: cd/lx/m?)
   Uncertainty:<5%
   Observation angle: 1.05 °
   Incident angle: 88.76 °
   Light source color temperature: A Light source color temperature 2856K
   Receiver: V correction
   Applicable ambient temperature: -20 °~50 °
   Continuous working time for one charge: 10 hours

Instructions for using the retroreflective coefficient measuring instrument for reflective markings:
This device is an instrument for measuring the optical performance of reflective markings. This instrument is a precision optical instrument. During use, measurements should be carried out according to the usage steps and requirements. Pay attention to the cleanliness of the instrument and prevent vibration.
The execution standard for the retroreflective coefficient measuring instrument for reflective markings is:
National standard GB/T16311-2004 “Quality Requirements and Testing Methods for Road Traffic Markings”,
The transportation industry standard JT/T280-2004 “Road Marking Coatings” specifies technical indicators for the optical performance of reflective markings at night, and the retroreflective marking measuring instrument provides a measuring instrument for controlling construction quality.
Description of Retroreflective Coefficient Measuring Instrument for Reflective Markings:
The brightness of reflective markings is represented by the reflection coefficient, in units of mcd/lx/m2. Its physical meaning is the brightness value generated per unit area under unit lighting conditions. Place the instrument above the measured line, which displays the value of the reflection coefficient in digital form, reflecting the objective evaluation of the driver’s reflection brightness of the line under driving conditions. The instrument consists of a measuring host, power supply, charger, and standard board.

Features:

1. Able to measure 24/7 regardless of day, night, field, or indoor conditions;
2. The instrument is easy to operate and displays the value of the reflection coefficient in intuitive numbers;
3. The instrument is equipped with a set of standard boards and calibrated using data transmission, with high accuracy;
4. The geometric conditions for measurement are an observation angle of 1.05 ° and an incidence angle of 88.76 °, which comply with the national standard “Quality Requirements and Testing Methods for Road Traffic Standards”;
5. The instrument has a small volume, light weight, and is easy to carry

Notes:

1. Because the light source of the instrument undergoes slight changes under the action of current, in order to measure data accurately. Preheat the instrument for 10 minutes after startup.
2. The instrument has three indicator lights to monitor the power supply of the instrument. A green light indicates that the power supply is working properly, while a red light indicates that the power supply voltage is low, and the instrument needs to be charged. When charging, if the yellow light is on. Indicates that the electricity is sufficient. Can be measured.
3. This instrument comes with a charger. When charging, there is a charging switch on the side of the instrument. Turn on the switch and the indicator light will light up, indicating that it has been connected to the internal power supply. At this point, connect the charger to charge. The charging time is generally 3-4 hours.
4. After each measurement, be sure to reset the light gate button and put the instrument into the instrument box for storage. Shockproof, water discharge, and dust discharge. Pay attention to the cleanliness of the standard board and do not damage it.
5. When the instrument is not in use for a long time, it is necessary to charge and maintain the instrument battery to prevent the battery activity from weakening.
6. When the instrument light door switch is not open, if the measurement button is pressed, data will also appear. This data is the monitoring data of the instrument light source and is not related to actual measurement. Please be aware.
7. If the instrument malfunctions, please contact the supplier in a timely manner and do not disassemble or repair it on your own to avoid unnecessary damage.

Retroreflective marker measuring instrument parameters:
★ Measurement range: 0-1999.
★ Uncertainty:<5%.
★ Observation angle: 0.2 °.
★ Incident angle: -4 °.
★ Light source color temperature: 2856K.
★ Receiver: V ƒ correction.
★ Applicable ambient temperature: -20 °~50 °.
★ Continuous working time for a single charge:<10 hours.
★ Relative humidity: 80%.
★ Boundary dimensions: 500 Í 420 Í 180.
★ Weight: 8Kg.

Introduction:
This instrument is used to measure the optical properties of various reflective films, reflective fabrics, and various road sign boards made of such materials. This instrument meets the requirements of the Technical Conditions for Highway Traffic Sign Board (Transportation Industry Standard JT/T279-1995). The instrument was sent to the China Institute of Metrology for testing in December 2001 and obtained a testing certificate (certificate number GXpj2001-0008). In September 2002, it was sent to the Highway Engineering Testing Instrument Metrology Verification Station of the Ministry of Transportation for verification and obtaining a certificate of conformity. This instrument provides necessary testing tools for highway sign manufacturers, supervision companies, and quality inspection departments. It is a condition for measuring whether a construction unit has construction qualifications, and is an instrument for construction guidance, on-site testing, completion acceptance, and quality assurance. Received positive feedback from users during long-term use.
Features:
The geometric conditions for measurement are an observation angle of 0.2 ° and an incidence angle of 4 °, which comply with the industry standards of the Ministry of Transportation.
★ Able to measure 24/7 regardless of day, night, field, or indoor conditions.
This instrument belongs to non-destructive testing and does not cause damage to the tested product.
The number displayed on the instrument is a direct reading reverse reflection system; Unit: cd/1x/m2.
The instrument is equipped with a set of physically stable standard boards and calibrated using data transmission, with high accuracy.
★ Small in size, light in weight, convenient for carrying or field operations.