User Instructions
for
pin-less
Ligno-DuoTec BW
and
Ligno-Tec RH
(F4-F7)
Lignomat USA Ltd
14345 NE Morris Ct
Portland OR 97230 USA
Tel: 1-800-227-2105
FAX: 1-503-255-1430
E-mail: [email protected]
www.lignomat.com
The Ligno-DuoTec BW is a capacitance-
type meter for wood, bamboo and
building materials. The sensor plates
on the back emit and pick-up very low-
powered electromagnetic signals.
The measurements generated by the
Ligno-DuoTec BW are average values
of the entire measuring field between
the surface and the maximum depth
of penetration. Moisture closer to the
surface has a greater effect on the
average than the moisture closer to
the maximum depth of penetration.
All Lignomat meters internally check
and adjust the calibration. Therefore
manual recalibration is neither needed
nor possible.
Wood
Range: 5*-60%. Readings above 25%
fiber saturation point are less accu-
rate. *To check the lowest possible
reading, hold the meter in the air and
push the READ key. The range for hard-
woods with high specific gravity is
lower than 5%. The range for soft-
woods with low specific gravity is
higher than 5%.
Settings: 30-100.
Gravity Range 0.3 to1.0. For un-
listed species the specific gravity can
be used as species setting. For ex-
ample, if the specific gravity is 0.42
the setting is #42. Values for the
specific gravity can be found on the
Internet by entering <specific grav-
ity…> followed by the name of the
wood. For calculations see section F1.
For unlisted species or new prod-
ucts Lignomat offers testing to de-
termine the correct setting.
Sheetrock:
# 15, range 0-2%.
Moisture values are in percent.
Bamboo:
Check green card for
code#. Range same as for wood.
Concrete:
Code# 25, reference
scale only 0-99. See section F4.
Reference scales:
Code# 0: Sensitivity level for lami-
nates and products out of wood.
Code#10: Sensitivity level for build-
ing materials lighter than concrete.
Selectable Measuring Depth:
1/4” (7mm) and 3/4” (20mm)
B1
B2
Ligno-DuoTec BW - Scan Mode
Check and Change Settings
Settings for wood species and build-
ing materials are listed on the lami-
nated pocket guide included with
each meter. To recall active settings
push the SET/HOLD key repeatedly.
Use
S
or
T
keys to change settings.
1 st:
Active Material Setting for
wood and non-wood materials
2 nd:
Active
Measuring Depth
for 1/4” or 3/4” (7mm or 20mm)
Use
S
or
T
key to change.
Change mm to inches:
Disconnect
battery and press SET key twice.
Connect battery again. The display
pictured below will appear, push
T
key to change from inches to mm
and push
S
key to change from
mm to inches.
3.24 is the soft-
ware version.
B4
Take Measurements
After settings have been checked /
changed, push the READ key to ob-
tain moisture readings. The active
setting appears
briefly, followed
by the default
(lowest) reading, if the sensor plates
are not in contact with any material.
For actual measurements, place the
meter on the
test sample (for
wood in the di-
rection of the grain). Press down
slightly, holding the outer sides of
the meter without touching sample
with your hand.
The HOLD key is
used to freeze
the indicated
.
value for one minute. Helpful when
taking notes or when measuring in
places, where the display cannot be
read while measuring. At any time
you can switch back to measuring
by pushing the READ key again.
B3
When the moisture is too low to
measure, the default reading ap-
pears with “Min” in the lower left
side of the
display. When
the moisture
is too high, the highest moisture
value is displayed with “Max” on
the lower left side of the display.
For accurate readings:
- Sample should be big enough to
cover both sensor plates
- Measuring depth has to be set
according to sample thickness.
- Surface should be smooth and
flat. For uneven surfaces take
the highest value of several
measurements.
To eliminate any possible influence
from material underneath the
sample board, it is recommended
(if possible) to arrange the
sample so that an open space is
directly underneath the measuring
area. If this is not possible, make
sure the Ligno-DuoTec BW is set
for the correct measuring depth.
B5
Ligno-DuoTecBW and RH new.internet.p65
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