Operate
last update: 30.07.2014
page 21
8.4.2
Storage
Handle the carefully in order to protect the glass beads so they will not get detached.
The calibration standard has to be protected from dust and soiling.
Store protected from light without contact on the surface, e.g. in a cupboard.
Store and use it at a temperature around 23°C and at a relative humidity of less than
60%.
A damaged or a polluted calibration standard may cause incorrect calibration and
therefore incorrect measuring results!
8.4.3
Cleaning
Cleaning the may change the retroreflection values. Hence you should avoid cleaning
by proper handling and storage as mentioned in chapter 8.4.2
If you observe deviations on the retroreflection values and you suspect the ACC175 has been
soiled, clean it carefully with water and a clean and soft brush and set it to dry at room
temperature at around 23°C.
Do not use any detergents.
8.4.4
Carry out the calibration
Before carrying out the calibration always take care that the
was properly
positioned.
function. In the standard setting there are listed night
visibility RL and day visibility Qd to be calibrated on
the calibration standard. If you wish to check the
, you need to change the calibration
set
tings. Press in the menu „Calibrate“ the button
.
Now choose the R
L
geometry.
Press o
n the line “Calibrate on”.
