Delta RetroSign GRX-1, User Manual

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RetroSign GRX User Manual / December 2017
10
DELTA
International standards
The RetroSign GRX measures the retroreflection and calculates R
A
according to international CEN
and ASTM standards. The instrument complies with the following European and US standards:
•
EN 12899: Fixed, Vertical Road Traffic Signs, part 1-5
Part 1: Fixed Signs & Part 4: Factory Production Control
•
EN 20471: High-Visibility Clothing - Test Methods and Requirements
•
ASTM E 1709: Standard Test Method for Measurement of Retroreflective Signs Using a
Portable Retroreflectometer at a 0.2 degree Observation Angle
•
ASTM E 2540: Standard Test Method for Measurement of Retroreflective Signs Using a
Portable Retroreflectometer at a 0.5 degree Observation Angle
•
ASTM E 1809: Standard Test Method for Measurement of High-Visibility Retroreflective-
Clothing at a 0.2 degree Observation Angle and an Entrance Angle of -4 degree
(discontinued).
Overview of RetroSign GRX
It is very easy to operate the RetroSign GRX and requires a minimum of instruction. The instrument
provides a warning message or sound in case of unreliable measurement.
The measurement results are presented on a color touch screen.
Each measurement can be linked to a user/operator name and a series name which may contain user
defined data (i.e. fields).
The GRX is equipped with a USB port for data export via a memory stick and is equipped with WiFi
for wireless export through an iPad app (optional feature)
– see further details in
Section 3 under
‘Export series data’
.
RetroSign GRX is powered by a rechargeable battery, offering many hours of measurement capacity.
A mains powered battery charger is supplied as customary delivery.
The majority of buttons on the RetroSign GRX are accessible via the touch screen. The physical
buttons and features on the instrument are shown below.