Bosch UniversalHumid Original Instructions Manual page 27

Should the values not match, send the measuring tool via your dealer to be checked by
an after-sales service agent for Bosch.
Practical advice
Influences on the Measurement Result
The accuracy of the measured values is greatest when the ambient temperature corres-
ponds to the temperature of the piece of wood to be measured.
The measurement result can be influenced by:
– The wood group and wood subgroup
– The temperature of the piece of wood to be measured
– The division of the piece of wood to be measured into heartwood and sapwood
– The insertion depth of the pins in the piece of wood to be measured
– The surface treatment of the piece of wood to be measured (e.g. oils or coatings)
– Whether the measurement is carried out parallel or perpendicular to the structure/
grain of the piece of wood to be measured
– The distribution of moisture
– The measuring point (i.e. whether this is in the centre or at the end of the piece of
wood)
– The condition and type of the piece of wood: The wood should be free from rot, knurls
or defects of any other kind
Caution: If exact values are required, a measurement should be taken according to the
Darr method (exact laboratory procedure as per DIN 52183).
Errors – Causes and Corrective Measures
Cause
Warning symbol (c), temperature indicator (d) and "Err" in the display
Ambient temperature is outside of the op-
erating temperature range of –5 °C to
+50 °C.
For wood group A: > 74.7 % and "HI" in the display
For wood group B: > 61.9 % and "HI" in the display
Wood moisture content is outside the
measuring range (too high)
Indicator "– –.–" on the display
Bosch Power Tools
Corrective measures
Wait until the measuring tool has reached
operating temperature.
Take the measurement again in another
area on the wood.
1 609 92A 5EY | (29.04.2020)
English | 27