H68.0.02.6C-04
Operating Manual GMK 210
page 9 of 20
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6 Operating-Modes
„Measuring Mode“ and „Detector Mode“
The device has two operating modes:
1. Measurement (curves: dEt oF)
2. Detector (relative measurement with adjustable alarm threshold : dEt on)
The modes can be switched via the configuration menu.
6.1 Measuring Mode
In the measuring mode
(Configuration: dEt oF) material can be measured precisely.
There are material curves available. The display is done in absolute unit (%u or %w). An
appropriate rating is shown as a bar graph or as an acoustic signal.
6.2 Detector Mode
In the detector mode
(Configuration: dEt on, material selection is fixed:
“dEt“ = rEF curve) can be
searched very comfortably for moist spots with high resolution and adjustable alarm threshold
(„dEt
SCL“), metal structures, beams in plasterboard, etc. The measurement is relative (only rEF-curve!
Display
in „digit“ = no unit)
After the detector mode is enabled (Configuration: dEt on), a reasonable alarm threshold
(=sensitivity
„dEt SCL“) should be chosen, examples:
- Search for structures under drywall:
10
- Search for trouble spots on the hull:
10
- Search for wood or metal studs in plasterboard
5
The alarm threshold determines at which display value maximum humidity is rated (over bar display
and beep)
Procedure:
Place the unit on a reference point (dry) and perform a zero calibration
by pressing the “hold” key
until 0.0 is displayed (~ 2 seconds).
Slowly scan the area -> if increased moisture is detected, the alarm signal and corresponding bar
graph will signal this additionally to the changing display value.
Additional warnings in the detector mode:
Depth switch setting of 10 mm: A measuring in the depth of ~25 mm is a much
more moist, than the value shown in display.
Depth switch setting of 25 mm: : A measuring in the depth of ~10 mm is a much
more moist, than the value shown in display.