
H68.0.01.6C-06
Operating Manual GMK 100
page 13 of 14
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18
Technical Data
Measurement
Method
Capacitive (=dielectric) measuring method, non-destructive
Depth
2 selectable: approx. 10 mm and approx. 25 mm
Materials
18 characteristic curves for wood and popular materials, additionally
reference curve for high-resolution relative measurements
Resolution
0.1 %; for more than 19.9 %: 1 % (for both %u and %w)
Range
Water content (w):
0.0 ... 50% (wood)
Material moisture (u): 0
.0 … 100% (wood), 0.0…~8.0 (concrete etc.)
Moisture rating
Display: Rating of the moisture in 6 levels from WET to DRY
Acoustic: Signal tone, depending on moisture rating
Accuracy
The achievable accuracy depends significantly on the application and
the properties of the measured material!
Display
2 displays for material and measured value, backlight
Hold function
Press button to freeze current value.
Working temperature
-25 to 50 °C; 0 to 80 % RH (non condensing)
Storage temperature
-25 to 70 °C
Power supply
9 V-battery type IEC 6F22 (included)
Power consumption
(measurement)
Approx. 0.12 mA (battery life time: more than 2500 hours for alkaline
battery)
Power consumption
(backlight)
Approx. 2.5 mA (Backlight reduces battery life time! Automatic turn off
function is selectable)
Used battery display
“bAt” displayed if battery used, warning: “bAt” blinking
Auto off-function
Device will be automatically switched off if not operated for longer
time
(adjustable from 1..120min)
Housing
impact-resistant ABS plastic housing, front side IP65
Dimension
Approx. 106 x 67 x 30 mm (H x W x D)
Weight
Approx. 135g incl. battery
Directives and standards:
The instruments confirm to following European Directives:
2014/30/EU
EMC Directive
2011/65/EU
RoHS
Applied harmonized standards:
EN 61326-1 : 2013 emissions level: class B
emi immunity according to table A.1
Additional fault: <1%