GANN HYDROMETTE HB 30 User manual

GANN HYDROMETTE HB 30
Operating Instructions

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Table of Contents
Page
Description of the measuring instrument .....................................................................3
Measuring ranges ....................................................................................................4
Battery, Dimensions and admissible ambient conditions ......................................... 5 - 6
Safety directions .............................................................................................. 7 - 8
Instructions for wood moisture measurement ....................................................... 9 - 10
Use of measuring electrodes for wood moisture measurement ............................. 11 - 14
General directions to wood moisture measurement ............................................. 15 - 17
Instructions for structural moisture measurement ...................................................... 18
Use of measuring electrodes for structural moisture measurement ........................ 19 - 24
Equilibrium moisture - general information .......................................................... 25 - 26
Comparison graph - Air humidity - wood moisture content -
structural moisture ................................................................................................. 27
Equilibrium moisture values .............................................................................. 28 - 29
Conversion graphs for structural moisture measurement ...................................... 30 - 36
Use of active electrodes MB 35, B 50 and B 60 ................................................. 37 - 43
Instructions for infrared surface temperature measurement .................................. 44 - 49
Description of measuring electrodes................................................................... 50 - 59
Warranty .............................................................................................................. 60
Declaration of conformity ....................................................................................... 61

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Technical Specifications - Hydromette HB 30
(1) BNC Connection Socket for connection of electrodes designed for testing wood
and set building materials
(2) 7-pin Connection Socket for connection of the active electrodes MB 35, B 50, B
60
and IR 40
(3) LCD Readout for all measurements
(4) Selector Switch »position 2 and 3«
for automatic correction of readings according to the
species of wood to be measured (see separate table of
wood species)
»position B«
for measurement of set building materials according to
the
resistance measuring method
»position M«
for measurements using the active electrodes B 50,
B 60, MB 35 and IR 40.
»position Batt«
for battery check.
(5) Measuring Key ON/OFF

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Measuring ranges
Wood Moisture, position »2-3«: 4 - 30 % m.c.
Structural Moisture 1, position »B«: 0 - 80 digits with graphs for convert-
ing
readings into percent of
moisture for various building
materials
Structural Moisture 2, position »M«: 0 - 199 digits non-destructive measurement
with active electrode B 50 or
B 60
0.3 - 8.5 % of dry weight non-
destructive
measurement with active
electrode B 50 and B 60 by
conversion table
0.3 - 6.5 % CM non-destructive measurement
with active electrode B 50
and
B 60 by conversion table
2 - 8 % of dry weight with active
electrode MB 35, non-
destructive surface measure-
ment of concrete

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Temperature, position »M«: -20.0 - 200 °C with infrared sensor IR 40.
If the measured value exceeds the measuring capacity, the figure »1« appears on the left side
of the display screen (3).
Battery Check
Set selector switch (4) to position »Batt« and press measuring key (5). The reading displayed
should be higher than 7.5 digits. If it is 7.5 digits or lower, the battery is exhausted and
should be replaced or recharged if a rechargeable battery is being used. The cover of the bat-
tery compartment can be lifted by means of a coin inserted into the slot.
It is recommendable to replace or recharge the battery once the reading of the battery check
is between 8.0 and 7.5 digits.
Power Source
The meter is fitted, as standard, with a 9 V dry battery IEC 6 F 22 or IEC 6 LF 22.
It is recommended to use alkali-mangan batteries.
A rechargeable nickel-cadmium battery can be fitted (optional accessory). It can be recharged
from any A.C. lighting supply socket by means of the charging unit supplied with this special
battery.
Calibration
The meter is fitted with an electronic setting device, making manual calibration or adjustment
unnecessary.

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Dimensions
Plastic casing: Length 140 mm x Width 90 mm x Height 42/50 mm.
Weight: about 230 g without accessory.
Admissible ambient temperatures
Storage: 5 to 40 °C; temporarily -10 to 60 °C not condensing
Operation: 0 to 50 °C, short term -10 to 60 °C not condensing
The meter including accessory must not be stored or used in aggressive air or air contami-
nated by solvents.
The instructions for use of the meter and of the electrodes should be carefully
observed to avoid measuring errors which may occur when trying to simplify the
measuring procedure.

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Important Safety Directions and General Remarks
The following instructions should be carefully read and understood prior to first use of the
moisture meter. No warranty claim can be accepted for any damage caused by non-
observance of these instructions. The manufacturer can also not assume any responsibility for
incidental or consequential damages.
The instructions for use of the meter and of the electrodes should be carefully observed to
avoid measuring errors which may occur when trying to simplify the measuring procedure.
Make sure in any case prior to drilling holes for measuring probes or before driving
electrode pins into walls, ceilings or floors that this happens away from power
lines, water pipings or other supply pipes.
Using the moisture meter under unfavourable environment conditions should be avoided as
this could result in damages to the sensitive electronic circuitry of the meter itself or to the
measuring sensors.
Unfavourable environment conditions are among other things
 constantly too high an ambient air humidity (>90 % R.H.),
 dust and inflammable gases or vapours as well as air containing solvents,
 ambient temperatures exceeding 50 °C,
 ambient temperatures below the freezing point,

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 ambient temperature dropping below dew point (formation of condensate).
When using the measuring probes and connecting to or disconnecting them from the measur-
ing instrument do not use force and do not pull on the cable.
The measuring instrument, connecting cable and measuring probes must not be used or
stored in aggressive or air containing solvents.
Static Electricity - At low air humidity circumstances such as friction during timber handling or
highly insulated surroundings may cause static electricity of very high voltages. This may re-
sult not only in fluctuating or negative readings, but can also destroy transistors and ICs used
in manufacturing the moisture meter.
The operator too may contribute by his clothing or shoes made of man-made fibre to build up
a static charge. The results can markedly improved, if the operator stands perfectly still and
avoids moving the meter and the measuring cable while taking the reading.
Frozen wood with moisture content in excess of 20 % cannot be measured.
The information and tables on admissible or usual moisture conditions as well as the general
terms and definitions contained in the instructions were taken from the specialist literature.
The manufacturer or supplier of the measuring instrument cannot be held responsible for the
correctness of this information.
The conclusions to be drawn from the measurement results by each user are governed by the
individual circumstances and experiences and knowledge gained in the course of his profes-
sional practice.
The measuring instrument meets the stronger demands laid down in class B of the pertinent
regulations for interference emission and may, therefore, be used also in living areas.

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The measuring instrument and its standard and optional accessory must only be used as de-
scribed in this manual.
In view of the electromagnetic compatibility and the reliability of measurement, only the stan-
dard and optional accessory described in this manual must be used with the measuring in-
strument.
Operating Instructions for Wood Moisture Measurement
using measuring electrodes M 18, M 20, and M 20-OF 15
Set selector switch (4) to position (2 or 3) stated in the table of wood species for the species
to be tested. Only species classified in group 2 and 3 can accurately be measured.
Connect measuring electrode to the meter socket (1) by means of the measuring cable MK 8.
Drive-in, stick-in or press the electrode onto the wood to be measured.
Press measuring key (5) and read off result displayed by the LCD readout as soon as the read-
ing has stabilised. Press measuring key no more than three seconds.