GANN Hydromette BL H 40 User manual

1
Hydromette BL H 40 / HT 70
HYDROMETTE BL
H 40 / HT 70
Operating Instructions
Version 2.0
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/us
www.industrial-needs.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/english

2
HydrometteBLH 40 / HT 70
Table of contents
0.1 Publication Statement..............................................................4
0.2 WEEE Directive 2002/96/EC Law on Electrical and
Electronic Equipment...............................................................4
0.3 General Notes............................................................................5
0.4 Safety Advice.............................................................................7
1Introduction...................................................................................7
1.1 Description.................................................................................7
1.2 Device Layout and Button Assignment.................................8
1.3 DisplaySymbols........................................................................9
2Basic Functions .........................................................................10
2.1 Switch on Device.....................................................................10
2.2 Displayin Measuring Mode...................................................11
2.3 Setting Menus..........................................................................11
2.3.1 Measurement Menu (Main Menu)..........................12
2.3.2 Wood Type Setting...................................................13
2.3.3 Temperature Menu...................................................14
2.3.4 Maximum Value Display..........................................15
2.3.5 Minimum Value Display...........................................18
2.3.6 Memory Menu...........................................................19
2.4 Other Functions.......................................................................20
2.4.1 Automatic Switch-off................................................20
2.4.2 Battery Monitoring....................................................20
2.4.3 Changing the Electrode Pin....................................20

3
HydrometteBL H 40 / HT 70
3Specifications .............................................................................21
3.1 Technical Data.........................................................................21
3.2 Prohibited Environmental Conditions...................................21
3.3 Measuring Ranges..................................................................22
4Application Instructions...........................................................22
4.1 Introduction..............................................................................23
4.1.1 Hammer Electrode M20.........................................24
4.1.2 Surface Measurement Cap M20-OF 15 ..............24
4.1.3 Stick-in Electrode Pair M20-HW 200/300............25
4.1.4 Ram-in Electrode M18............................................25
4.2 Test Adapter for Wood Moisture Measurement.................27
4.3 Static Charge...........................................................................27
4.4 Equilibrium Wood Moisture Content....................................27
4.5 Growth Ranges of Fungi........................................................28
4.6 Swelling and Shrinkage of the Wood...................................28
5Appendix: Accessories............................................................29
Graphical short operating instructions in the centre 

Introduction
4
HydrometteBLH 40 / HT 70
0.1 Publication Statement
This publication replaces all previous versions. It may not be
reproduced in anyform or processed, duplicated or disseminated
using electronic systems without the written permission of Gann
Mess- u. Regeltechnik GmbH. Subject to technical and
documentary changes. All rights reserved. This document was
prepared with the required care. Gann Mess- u. Regeltechnik
GmbH accepts no liabilityfor errors or omissions.
GANN Mess- u. Regeltechnik GmbH, Gerlingen, Germany.
07.11.2014
0.2 WEEE Directive 2002/96/EC Law on Electrical
and ElectronicEquipment
Disposal of packaging, the battery and the device must be
undertakeninaccordancewiththe legalrequirementsata recycling
centre.
The device was manufactured after 1 October, 2009

Introduction
5
HydrometteBLH 40 / HT 70
0.3 General Notes
This measuring device fulfils the requirements of the applicable
European and national directives (2004/108/EC) and standards
(EN61010). Appropriate declarations and documentation are held
by the manufacturer. To ensure trouble-free operation of the
measuringdeviceandoperationalreliability,the usermustcarefully
readthe operatinginstructions.Themeasuring device mayonlybe
operatedunderthe climaticconditions specified. These conditions
can be found in Chapter 3.1 "Technical data". This measuring
device maylikewise onlybe used under the conditions and for the
purposes it was designed for. Operational reliability and
functionality are no longer ensured if the device is modified or
adapted. Gann Mess- u. Regeltechnik GmbH is not liable for any
damagearisingfrom suchmodificationsor adaptations. The risk is
borne bythe user alone.
The device must not be stored or operated in aggressive
air or air containing solvents!
Static charge - at low levels of air humidity aided by
external factors (friction during material transport, high
insulation of the surrounding area), static electricity can
build up with high voltages, which can not only lead to
strong swings in measured values or minus values, but
also to the destruction of electrical components in the
device. The operator of the measuring device can also,
unintentionally, contribute to the build-up of static charge
from his/her clothing. A significant improvement can be
achieved by ensuring the operator and the measuring
device remain completely still during the measurement
process and by grounding (touching conducting metal,
water or heating pipes, etc.).
Frozen wood cannot be measured.

Introduction
6
HydrometteBLH 40 / HT 70
The notes andtables intheseinstructions on permitted or
normal humidity conditions in practice and the general
definitions of terms have been taken from the specialist
literature. No responsibility can therefore be taken bythe
manufacturer for the correctness of this information. The
conclusions to be drawn from the measurement results
are relatedto the individualconditions and the knowledge
drawn from professional experience for each user.
The measuringdevicemaybe operated in residential and
commercial areas, as the stricter class B for emitted
interference (EMC) has been adhered to.
The measuring device and anyaccessories mayonlybe
properlyusedas describedintheseinstructions.Keep the
device and accessories out of the reach of children!
Wood and other materials should not be measured on
conductive surfaces.
Gann Mess-u. RegeltechnikGmbHaccepts no liability for damage
resultingfrom non-adherencetothe operatinginstructionsor bynot
taking proper care during transport, storage and handling of the
device during operation, even if this requirement for care is not
specificallyaddressed in the operating instructions.

Introduction
7
HydrometteBLH 40 / HT 70
0.4 SafetyAdvice
WARNING: There is a riskof injuryfrom the measurement
probes of the electrodes. Before inserting the electrode pins into
wooden panels or similar, use suitable methods to ensure that
there are no electrical wires, water pipes or other supply lines at
this point.
1 Introduction
1.1 Description
The Hydromette BL H 40 / HT 70 is an electronic wood moisture
measuring device for precise measurement of sawn timber (up to
180 mm thick), chipboard and veneers with a high-quality
measurement amplifier and 3-line LCD display.
The device has a wood type switch to automatically correct
measurement values for over 300 types of wood, and there is also
a wood temperature compensation. The HT 70 also offers a
connectionfor various temperaturemeasuring devices. In addition,
5 customer-specificwoodcharacteristiccurves canbeprogrammed
(only2 characteristic curves are available in the H 40).
The electrode is inserted into the respective material to be
measuredandallows themeasurementofmoistureinsawntimber,
chipboard, veneers and wood fibre materials up to 180 mm thick
(with electrode M18).

Introduction
8
HydrometteBLH 40 / HT 70
1.2 Device Layout and Button Assignment
Electrode connection
Active electrode
connection (HT 70)
Display
Up button
On/off button
Measurement button
Down button

Introduction
9
HydrometteBLH 40 / HT 70
1.3 Display Symbols
Main menu symbols
Wood moisture
Measuredvalue is held.
Readyfor measurement
Device temperature in
°C
Wood type classification
number
Wood symbol
Other symbols
Min/Max display
Wood moisture
Battery symbol
Compensation
temperature "c" in °C
Wood symbol

Basic Functions
10
HydrometteBLH 40 / HT 70
2 Basic Functions
2.1 Switch on Device
The device is switched on bypressing the On button .
Last measured value in %
"Hold" symbol
Last measured device temp. in °C
Wood symbol and classification
number
In this menu, a new measurement can be started bypressing the
measurementbutton "M". Seealso Chapter2.2 "Measuring mode".
Figure 2-1 Main Menu

BasicFunctions
11
HydrometteBLH 40 / HT 70
2.2 Display in Measuring Mode
Displayed measured value in %
"Hold" symbol signals readiness to
make a measurement
Device temperature in °C
Wood symbol and classification
number
A measurementis started bypressing the "M" button.
2.3 Setting Menus
The following menus can be selected one after the other by
repeated pressing of the "Up" and "Down" buttons. On the
following page, the sequence of the setting menus that is seen by
pressing the "Down" button is shown.
Figure 2-2 Measuring Mode

Basic Functions
12
HydrometteBLH 40 / HT 70
1. Measurement menu (main menu): The measuring
process can be carried out here.
2. Wood type setting: The wood type can be selected here.
3. Temperature menu:The temperature compensation can
be set here.
4. Maximum value display: The highest value measured is
shown here.
5. Minimum value display: The lowest value measured is
shown here.
6. Memory menu: The last5 values measuredcanbecalled
here.
2.3.1 Measurement Menu (Main Menu)
The last measurement with the note "Hold" is shown here. The
device temperature and the current type are also shown on the
display.
In this menu, a new measurement can be started bypressing the
"M" button.
Duringthe measuringprocess,the "Hold" symboldisappears from
the display and the % symbol blinks. If the measured value is
stable,the % symbolremains switched on, and after releasing the
"M" button the measured value is saved. The "Hold" symbol is
displayed again.
If the new measured value is higher or lower than the previous
maximum orminimum value, "Max" or "Min" appears flashing on
the display. If the value is to be saved as the Min. or Max. value,
the "M" button must be pressed briefly. If the value is not to be
saved, a newmeasurementcanbestartedwith a longpress on the
"M" button without changing the previous saved maximum or
minimum values.
If the measurementrange is notreached or exceeded (H40: < 5%,
> 40%; HT 70: < 5%, > 70%) a blinking measured value shows a
warning,which is alternatelymarked in addition with "LO" or "HI".

BasicFunctions
13
HydrometteBLH 40 / HT 70
2.3.2 Wood Type Setting
The classification number set is
displayed with the symbol for the
wood moisture.
Wood symbol and classification
number
If the woodtype is to be changed,the "M" buttonis pressed briefly.
The woodtype classificationnumberblinks andcan be set with the
"Up" and "Down" buttons. The change is saved by pressing the
"M" button again briefly.
The detailed wood type table is included.
Figure 2-3 Wood type setting

Basic Functions
14
HydrometteBLH 40 / HT 70
2.3.3 Temperature Menu
If the preset for the compensation temperature is to be changed,
the "M" button is pressed briefly (<1s) in the temperature menu.
The temperature display now starts to blink. By pressing the "M"
button for longer (> 2s), you can change between the user-defined
compensation temperature and the device temperature.
With a short (< 1s)press ofthe "M" button, the settingis confirmed
and you are back in the measurementmode.
Setting the user-defined compensation temperature:
If you have selected the user-defined compensation temperature
(identifiedwith a "c") in the temperature menu,you can change the
compensation temperature in steps of 1 °C with the "Up" and
"Down" buttons.
The change is saved by pressing the "M" button again briefly
(< 1s). You are then back in the measurement mode.

BasicFunctions
15
HydrometteBLH 40 / HT 70
2.3.4 Maximum Value Display
The highest moisture measurement
in a measurement sequence is
displayed together with the "Max"
display symbol
Wood symbol and classification
number
If a maximum valueis to bedeleted, the displayedvalueis selected
with a short press on the "M" button.
The value and the % symbol now blink and the value can be
deleted by a long press on the "M" button.
After deleting the value, only the % symbol still blinks. With a
repeated short press of the "M" button, the deletion of the value is
confirmedandthe% symboldisappears.Thedevicenow returns to
Readymode.
With the "M" button, a new measurement can then be carried out.
Figure 2-4 Maximum value display

16
HydrometteBLH 40 / HT 70
1 2
M M
M
<1 s
M
<1 s
M
>2 s
<1 s M
<1 s
M
>2 s
M
<1 s
M
<1 s
M
>2 s
M
M
M
<1 s
M
>2 s
Main menu
Measuring
mode
selection
menu
Temperature
menu
Max. value
reset menu
Min. value
reset menu
Saved menu
Measurement
Wood type
blinks
Temperature
blinks
Max. value
blinks
Min. value
blinks
Saved value
1
Memory1
ON/OFF button. The device
deactivates after 40s inactivity
Press measurement button any length of
time
Release measurement button
Hold measurement button pressedlonger
than 2 seconds
Press measurement button briefly

17
HydrometteBLH 40 / HT 70
00
M
<1 s
<1 s
M
<1 s
M
<1 s
etc.
3
M
<1 s
00
M
<1 s
00
M
<1 s
M
>2 s
<1 s
1
2
3
Measurement
Wood type 3
blinks
Main menu
Main menu
Main menu
Main menu
Main menu
Value deleted
Value deleted
Saved value
2
Memory2
Memory5
21 °C set
Device
temperature
sensor activated
Press the "Up" or "Down" button
"Up" or "Down" for
menu selection
Route to simple measurement:
Switch on device –main menuis
displayed
Hold measurement button pressedas
long as wanted tocarry out a
measurement
Release measurement button.The
measured value
is held ("Hold" appears in display)

Basic Functions
18
HydrometteBLH 40 / HT 70
2.3.5 Minimum Value Display
The lowest moisture measurement
in a measurement sequence is
displayed together with the "Min"
display symbol
Wood symbol and classification
number
If a minimumvalueis tobe deleted,the displayedvalue is selected
with a short press on the "M" button.
The value and the % symbol now blink and the value can be
deleted by a long press on the "M" button.
After deleting the value, only the % symbol still blinks. With a
repeated short press of the "M" button, the deletion of the value is
confirmedandthe% symboldisappears.Thedevicenow returns to
Readymode.
With the "M" button, a new measurement can then be carried out.
Figure 2-5 Minimum value display

BasicFunctions
19
HydrometteBLH 40 / HT 70
2.3.6 Memory Menu
Symbol: memory "r1"
As soon as you select the saved menu, the memory location
number "r1" is displayed for approx. 1 second, and then the last
measured saved value contained there is displayed.
The last5 measured values are automaticallysaved and stored in
memory locations "r1" to "r5". The last measured value is in
memory location "r1". This is a ring buffer: as soon as the sixth
measured value is recorded, the first measured value is
automaticallyremoved from the buffer.
With a short press of the "M" button, the next memorylocation "r2"
is selected and the value contained there is displayed. After
reaching the 5th memorylocation, the first is shown again.
You can recognize saved values displayed as there is no "Hold"
symbol in the display.
Figure 2- 6 Memory location "r1"

Basic Functions
20
HydrometteBLH 40 / HT 70
2.4 Other Functions
2.4.1 Automatic Switch-off
If no button is pressed within approx. 40 seconds, the device
switches itself off automatically. The current values are retained
and are displayed again after it is switched back on.
2.4.2 Battery Monitoring
If the battery symbol appears in the display, the battery is
dead and must be renewed.
A list of battery types that can be used can be found in the
"Technical data" chapter.
2.4.3 Changing the Electrode Pin
To change the electrode pin (M 18 / M 20), the hex nuts must be
screwed out. The pins can then be simplyreplaced.
To prevent measurement errors and breakage of the electrode
pins,the hexnuts mustbewell tightenedandthe area between the
pins kept clean.