H68.0.02.6C-04
Operating Manual GMK 210
page 8 of 20
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5.5 Characteristics and materials
Characteristics
rEF
Reference characteristics
d.45
Wood, density = 450 kg/m
3
d.50
Wood, density = 500 kg/m
3
d.55
Wood, density = 550 kg/m
3
d.60
Wood, density = 600 kg/m
3
d.65
Wood, density = 650 kg/m
3
d.70
Wood, density = 700 kg/m
3
d.75
Wood, density = 750 kg/m
3
d.80
Wood, density = 800 kg/m
3
d.85
Wood, density = 850 kg/m
3
d.90
Wood, density = 900 kg/m
3
d.95
Wood, density = 950 kg/m
3
d.99
Wood, density = 1000 kg/m
3
GrP
GRP (glass-fibre reinforced plastic)
ISO
Light insulation materials, e.g. Styrofoam
You can find a list of different types of wood and their corresponding characteristics d.xx in the
addendum.
The materials are selected with these keys:
material selection upwards: press
Material selection downwards: press
at the same time
The use of inappropriate characteristics can cause faulty measurements!
5.6 Zeroing function
It is recommended to run regularly the zeroing function for best measuring
results:
Hold the device in the air as shown in the left picture and press key “hold”
for 2 seconds.
You can easily see whether the zero point is ok with the “rEF”
characteristics. If the device shows at air a value <0.5 or >0.5 or blinking
“-
-
” with “rEF” characteristics you have to run the zeroing function.
Please pay attention not to influence the zeroing function
with your hands.
The best way to ensure this is shown left.
NOTE:
The zeroing function of the GMK 210 adjusts the zero-point for both 10 mm and 25 mm at
the same time.
ACHTUNG:
ATTENTION:
