Name of chosen scale will appear in the scale indicator field.To see detailed description of each
scale go to Available scales section.
•
To set the mode of measurement press ON/HOLD button. There are 2 available
modes:
Normal, Max Hold
The display color will change depending on which mode was chosen.
To see detailed description of each mode go to Modes & functions section.
•
To make a measurement press the meter against the tested surface until all spring
electrodes are completely blocked.
! Caution:
Do not press the device too intensely as this may harm the electrodes.
! Caution:
Fingers SHOULD NOT touch the sensor plate and electrodes while measuring.
The meter should be held in the middle while measuring (see picture below).
It is recommended to repeat the measurement in a few points situated next to each other as
humidity has a tendency of uneven distribution. If the measurements vary, only the highest
outcomes should be used.
•
To switch off the meter press ON/HOLD button for around 2 seconds.
3. Preparation of the surface before measuring
All concrete heating/drying equipment should be switched off at least 96 hours before taking the
final measurements. Otherwise the outcome may not reflect the actual humidity level or
displacement of humidity in tested material. Before the measurement may be taken, the analyzed
surface should be cleaned- there should not be any foreign substances like plastic films, dust etc..
In case of measuring concrete floors all covering materials like: concrete additives, primers, paints,
etc., should be removed in order to reveal pure concrete that is going to be measured.
All cleaning and cover-removing works should be finished at least 48 hours before taking the
measurement. VI-D4 meter should not be used to measure concrete on which there is water
in a liquid state. Measurements should be avoided in areas exposed to direct sunlight or other
sources of heat.
CAISSON Elektronik GmbH
Boschstrasse 16, D-47533 Kleve, Deutschland
tel: +49(0)2821-894390
www.caisson-gmbh.de
