Preparation Of The Surface Before Measuring - Romus VI-D4 Mode D'emploi

To make a measurement:
•
Press the meter against the surface until
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.
•

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.
INDICATEUR D'HUMIDITE VI-D4 | Rèf. 93270
- Press the meter against the tested surface
- All spring electrodes have to be completely
blocked
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