GANN Hydromette BL Compact TF-IR User manual

1
Hydromette BL Compact TF
Operating Instructions
Version 2.3
HYDROMETTE BL
COMPACT TF-IR
EN

Introduction
2
Hydromette BL Compact TF-IR
Table of contents
0.1 Publication Statement........................................................4
0.2 General Notes ...................................................................5
0.3 WEEE Directive 2002/96/EC Law on Electrical and
Electronic Equipment......................................................... 6
1Introduction.......................................................................... 7
1.1 Description.........................................................................7
1.2 Device Layout and Button Assignment..............................8
1.3 Display Icons.....................................................................9
2Basic Functions................................................................. 10
2.1 Switching on the Device/Ready Mode............................. 10
2.2 Display in Measuring Mode ............................................. 11
2.3 Setting Menus.................................................................. 12
2.3.1 Measurement Menu (Main Menu)....................... 12
2.3.2 Measuring Mode Selection Menu....................... 13
2.3.3 Laser Pointer / EM Settings................................ 15
2.3.4 Maximum Value Display..................................... 16
2.3.5 Minimum Value Display...................................... 17
2.3.6 Saved Menu....................................................... 18
2.4 Other Functions............................................................... 19
2.4.1 Automatic Switch-off........................................... 19
2.4.2 Battery Monitoring.............................................. 19

Introduction
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Hydromette BL Compact TF-IR
3Specifications..................................................................... 20
3.1 Technical Data................................................................. 20
3.2 Prohibited Environmental Conditions............................... 20
3.3 Measuring Ranges and Sensor Accuracy ....................... 21
3.4 Storage conditions........................................................... 21
4Application Notes .............................................................. 22
4.1 Measuring Air Humidity ................................................. 222
4.1.1 Absolute Humidity............................................... 22
4.1.2 Moisture Saturation ............................................ 22
4.1.3 Relative Air Humidity.......................................... 23
4.1.4 Equilibrium Wood Moisture Content (EMC)........ 23
4.2 Measuring Air Temperature............................................. 23
4.2.1 Dew Point Temperature...................................... 24
4.2.2 Dew Point Temperature vs. Air Temperature and
Rel. Humidity for Condensation Calculation....... 25
4.3 General Information on Infrared Temperature Measuring
Technology (IR)............................................................... 26
4.4 Measuring Using an IR Sensor........................................ 26
4.5 Emission Ratio................................................................. 28
4.6 Measurement Spot Size.................................................. 29
5Appendix ............................................................................ 30
5.1 Emissivity Table............................................................... 30
5.2 USB Connection to GANN DIALOG Software................. 32
5.3 General Concluding Remarks.......................................... 33

Introduction
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Hydromette BL Compact TF-IR
0.1 Publication Statement
This publication replaces all previous versions. It may not be
reproduced in any form 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 liability for errors or omissions.
GANN Mess- u. Regeltechnik GmbH, Gerlingen, Germany, 07
November 2014

Introduction
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Hydromette BL Compact TF-IR
0.2 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
measuring device and operational reliability, the user must carefully
read the operating instructions. The measuring device may only be
operated under the climatic conditions specified. These conditions
can be found in Chapter 3.1 "Technical data". This measuring
device may likewise only be 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
damage arising from such modifications or adaptations. The risk is
borne by the user alone.
Laser equipment warning:
This unit is equipped with a Class 2 laser. Never
direct this laser beam into the eyes, neither directly
nor indirectly through reflecting surfaces.
Laser radiation may cause irreversible damage to
the eyes. When measurements are performed with
humans being nearby, the laser beam must be disabled.
The notes and tables in these instructions 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 by the
manufacturer for the correctness of this information. The
conclusions to be drawn from the measurement results
are related to the individual conditions and the knowledge
drawn from professional experience for each user.

Introduction
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Hydromette BL Compact TF-IR
The measuring device may be operated in residential and
commercial areas, as the stricter class B for emitted
interference (EMC) has been adhered to.
The device may not be operated in the immediate area of
medical equipment (heart pacemakers, etc.).
The measuring device may only be properly used as
described in these instructions.
Keep the device and accessories out of the reach of
children!
Gann Mess- u. Regeltechnik GmbH accepts no liability for damage
resulting from non-adherence to the operating instructions or by not
taking proper care during transport, storage or operation of the
device, even if this requirement for care is not specifically
addressed in the operating instructions.
0.3 WEEE Directive 2002/96/EC Law on Electrical
and Electronic Equipment
Disposal of packaging, battery, and device must be undertaken in
accordance with the legal requirements at a recycling centre.
The device was manufactured after 1 May, 2010.

Introduction
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Hydromette BL Compact TF-IR
1 Introduction
1.1 Description
The Hydromette BL Compact TF-IR is a precise thermo-hygrometer
that is fitted with an IR surface temperature sensor and may be
used for various applications such as surveillance of residential
space, air conditioning systems, print shops, warehouses, etc.
Additional features included: single-handed operation, built-in
measurement probes, and a 3-line LCD for simultaneous display of
three measured values, e. g. air humidity, dew point temperature,
and surface temperature.
This combination of the different measuring techniques enables the
BL Compact TF-IR unit to be used for quickly and reliably
assessing dew point undershoots or determining borderline
conditions on surfaces such as walls, ceilings, floors as well as on
window or door lintels.
In addition to displaying the measured value, the unit creates an
audible signal when a critical surface temperature is located.
When using the unit in due time, mildew formation may be
prevented and occurrence of moistening caused by condensation
may be assessed reliably.

Introduction
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Hydromette BL Compact TF-IR
1.2 Device Layout and Button Assignment
Air
humidity/temperature
sensor
Display
Up button
On/off button
Measurement button
Down button
Laser pointer
IR sensor
Mini USB interface

Introduction
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Hydromette BL Compact TF-IR
1.3 Display Icons
Main menu icons
Air humidity in %
Measured value is held.
Ready for measurement
Air temperature in °C
Dew point (Dp) in °C
Other icons
Min/Max display
Air humidity in %
Dead battery
Air temperature in °C
Memory location 1

Basic Functions
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Hydromette BL Compact TF-IR
2 Basic Functions
2.1 Switching on the Device/Ready Mode
The device is switched on by pressing the On button .
After the start-up phase, the main menu appears in the "rh"
measuring mode (see also section 2.3.2).
Last value measured
in %
"Hold" symbol
Last measured temp. in °C
Calculated dew point (Dp)
in °C
In this menu, a new measurement can be started by pressing the
"M" measurement button. See also Chapter 2.2.
.
Figure 2-1: main menu/measuring mode

Basic Functions
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Hydromette BL Compact TF-IR
2.2 Display in Measuring Mode
Measured value in %
"Hold" symbol signals readiness to
make a measurement
Measured temperature in °C
Calculated dew point (Dp)
in °C
A measurement process is started by pressing the "M" button.
During the measurement process, the "%" symbol blinks and the
values adapt to the surrounding conditions. After releasing the "M"
button, the "%" symbol is displayed steadily and the "Hold" symbol
also appears.
The device is now in Ready mode.
Press the "M" button again to start a new measurement.
Approx. 40 seconds after releasing the measurement button, the
device automatically switches off to save battery power. When the
device is switched on again, the last value measured is shown on
the display.
Figure 2-2: measuring mode

Basic Functions
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Hydromette BL Compact TF-IR
2.3 Setting Menus
When the "Up" or "Down" buttons are pressed in Ready mode,
the various setting menus are shown one after another:
1. Measurement menu (Ready mode): The measuring
process can be carried out here
2. Measuring mode selection: Here you can specify the
measuring mode (section 2.3.2)
3. Laser pointer / EM menu: This menu can be used to
disable/enable the laser pointer and to set the emissivity
(EM factor).
4. Maximum value display: The largest value measured is
shown here (section 2.3.3)
5. Minimum value display: The smallest value measured is
shown here (section 2.3.4)
6. Saved menu: The last 5 values measured can be called
here (section 2.3.5)
2.3.1 Measurement Menu (Main Menu)
The last measurement with the note "Hold" is shown here.
In this menu, a new measurement can be started by pressing the
"M" button.
During the measuring process, the "Hold" symbol disappears from
the display. After releasing the "M" button, the measured value is
saved. The "Hold" symbol is displayed again.
If the new measured value is larger than the previous maximum
value, "Max" flashes on the display. If the value is not to be saved,
the "M" button must be pressed briefly. If the value is not to be
saved, a new measurement is started with a long press on the "M"
button without changing the previous maximum values.

Basic Functions
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Hydromette BL Compact TF-IR
2.3.2 Measuring Mode Selection Menu
In this menu, the various modes for the Hydromette BL Compact
TF-IR unit may be set. The currently active mode is selected with a
short press of the M button. The mode then begins to blink. Now a
mode can be selected with the Up and Down buttons and
confirmed with a short press on the M button.
The BL Compact TF-IR unit has 4 different setting modes that may
be scrolled top-down in the following order by pressing the "Down"
button:
Figure 2-3: measuring mode selection menu
"rh/ir" measuring
mode
"rh/Ah" measuring
mode
"EMC" measuring
mode
"rh/dp" measuring
mode

Basic Functions
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Hydromette BL Compact TF-IR
The selected mode changes the display of the measurement menu.
Depending on the mode, the appropriate physical dimension is also
displayed. The individual menus are scrolled top-down by pressing
the "Down" button.
"rh/ir" measuring mode (relative humidity, IR
temperature):
Relative humidity (in %), air temperature (in °C), and
the IR surface temperature measured (in °C) are
displayed.
"EMC" measuring mode (equilibrium wood moisture
content, EMC):
Equilibrium wood moisture content is the moisture
content adopted by the wood when it is exposed to
constant climate (constant air humidity and constant
temperature) for sufficiently long time.
"rh/Ah" measuring mode (relative/absolute humidity):
the relative humidity (in %) and the absolute humidity
(in g/m³ i.e. grammes of water in 1m³ of air) are
displayed.
"rh/dp" measuring mode (relative humidity, dew point
temperature):
Relative humidity (in %), air temperature (in °C), and
dew point temperature (dp) (in °C) are displayed.
Information and explanations on the individual measuring modes
can be found in Chapter 4 "Application instructions".

Basic Functions
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Hydromette BL Compact TF-IR
2.3.3 Laser Pointer / EM Settings
"On" or "Off" indicate whether the laser
pointer is enabled or disabled.
Emissivity set in %
When the default settings for emissivity (EM factor) and laser
pointer are to be changed, the "M" button must be pressed
momentarily. Emissivity (EM factor) and laser pointer display now
start flashing.
EM factor adjustment:
Using the "Up" or "Down" buttons, emissivity (EM factor) may now
be set between 20% and 100% in 1 unit increments or decrements.
The setting is saved by again pressing the "M" button momentarily
(< 1s).
The emissivity table is found in the Appendix.
Laser pointer adjustment:
By holding the "M" button depressed for longer than 2 seconds, the
status of the laser pointer may be changed from "Off" to "On" and
vice versa. To save the status selected and to return to the main
menu, the "M" button must be pressed momentarily (< 1s).
Figure 2-4: laser pointer

Basic Functions
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Hydromette BL Compact TF-IR
2.3.4 Maximum Value Display
In this menu, the maximum air humidity value measured in a
measurement sequence is displayed. Only the "rh" relative
humidity is displayed.
If a maximum value is to be deleted, the
displayed value must be selected with a short
press on the "M" button.
The value flashes and can now be deleted
using a long press on the "M" button.
Afterwards, only the "Max" symbol and the %
symbol are still blinking. Using another
momentary press on "M" button, the entry is
confirmed and the device returns to the Ready
mode.
Using the "M" button, a new measurement can
then be carried out immediately.
Figure 2-5: maximum value menu
Figure 2-6: deleted max. value

Basic Functions
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Hydromette BL Compact TF-IR
2.3.5 Minimum Value Display
In this menu, the minimum air humidity value measured in a
measurement sequence is displayed. Only the "rh" relative
humidity is displayed.
If a minimum value is to be deleted, the
displayed value must be selected with a short
press on the "M" button.
The value flashes and can now be deleted
using a long press on the "M" button.
Afterwards, only the "Min" symbol and the %
symbol are still blinking. Using another
momentary press on "M" button, the entry is
confirmed and the device returns to the
Ready mode.
Using the "M" button, a new measurement
can then be carried out immediately.
Figure 2-7: minimum value menu
Figure 2-8: deleted min. value

Basic Functions
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Hydromette BL Compact TF-IR
2.3.6 Saved Menu
In this menu, the last 5 measured values are saved. The view and
the respective units depend on the measuring mode selected.
The memory location number "r1" is
displayed for approx. 1 second and then
the last measured saved value is
displayed that is saved at this location.
You can recognize saved values as there is
no "Hold" symbol in the display.
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 last 5 measured values are automatically saved 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" (first measured) measured
value is automatically removed from the buffer.
By momentarily pressing the "M" button, the next memory location
"r2" is selected and the value contained there is displayed. After
reaching the 5th memory location, the first one is shown again.
The menu can be exited using the "Up" or "Down" buttons.
Figure 2-9: memory location r1

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Hydromette BL Compact TF-IR
2.4 Other functions
2.4.1 Automatic Switch-off
If no button is pressed within approx. 40 seconds, the device
switches off automatically. The current values are retained and are
displayed again after the unit 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.

Specifications
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Hydromette BL Compact TF-IR
3 Specifications
3.1 Technical Data
Display: 3-line display
Display resolution: 0,1 %
Response time: < 2 s
Storage conditions: + 5 to + 40 °C
- 10 to + 60 °C (short-term)
Operating conditions: 0 to + 50 °C
- 10 to + 60 °C (short-term)
Power supply: 9V block battery
Approved types: 6LR61 or 6F22
Dimensions: (L x W x H) 180 x 50 x 30mm
Weight: approx. 320 g
3.2 Prohibited Environmental Conditions
Condensation, air humidity continuously too high (> 85 %)
and wetness
Permanent presence of dust and combustible gases, fumes
or solutions
Ambient temperatures continuously too high (> +50 °C)
Ambient temperatures continuously too low (< 0 )