Wohler FA 320 Manuel utilisateur
The Measure of Thechnology
Wöhler FA 320 Fan Anemometer
Art. – Nr. 22107
Contents:
1. Preface.............................................12
2. Specifications....................................13
3. Operations........................................14
4. Declaration of Confirmity...................19
5. Guarantee and Service.....................20
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Wöhler FA 320
1. Preface
Carefully study and observe all items of these operating instructions before com-
missioning the unit.
In principle, the Wöhler FA 320 Fan Anemometer should only be used by skilled
personnel for its intended purpose and within the specified range of data. Any
liability or warranty for results established or for defects caused when using the
unit is excluded by all means.
Wöhler FA 320
2. Specifications
2.1 Application
The Wöhler FA 320 Fan Anemometer is a handy, handheld instrument designed
to measure the flow velocity, temperature and relative humidity of air. It can be
used for example for the measuring of ventilation plants, in housing spaces etc.
Because of the integrated average determination of eight measuring points it will
be possible to measure even large outlets. In this case the air volume flow will be
calculated automatically.
The user can select between different units (°C, °F, %rH, m/s, ft/m, m³/m, cfm,
cm, inch).
2.2 Measured values
Flow velocity:
Flow velocity range: 0,3 … 35 m/s
Resolution: 0,1 m/s
Accuracy: ± 5 % o.m.
Air volume:
Air volume range: 0 … 99.999 m³/s
Resolution: 0,1 (0 … 9.999,9 m³/s)
1 (10.000 … 99.999 m³/s)
Accuracy: ± 5 % o.m.
Temperature:
Temperature range: -20 °C … 60 °C
Resolution: 0,1 °C
Accuracy: ± 1 °C
Wöhler FA 320
Relative Humidity:
RH range: 0 … 100 % r.h.
Resolution: 0,1 %r.h.
Accuracy: ± 3 % r.h. (10 … 90 % r.h.)
otherwise ± 5 % r.h.
Dew point:
Dew point range: -68 °C … 70 °C
Resolution: 0,1 °C
Wet bulb temperature:
Wet bulb range:-22 °C … 70 °C
Resolution: 0,1 °C
2.3 Technical Data:
Dimensions (vane): 170 x 77 x 40 mm
Dimensions (meter): 175 x 70 x 33 mm
Weight (vane): 150 g
Weight (meter): 185 g
Power: 4 x 1.5 V battery, AAA
3. Operation
3.1 Important Reminder
-Rotate the cover before measurement to ensure the measured data is
correct.
-The vane and the meter are sold as a kit and are well calibrated. So,
please do not connect the vane with other same type Fan Anemometers,
because the characteristic of each vane is different.
Wöhler FA 320
3.2 Key Pad
3.2.1 Power
Press to turn on and off the meter.
When the meter is off, press the POWER key more than two seconds to enter the
unit selection.
3.2.2 MODE
Press the MODE key to select the different modes (temperature – dew point – wet
bulb – relative humidity - velocity).
3.2.3 ENTER
Press ENTER to confirm the setting and calibration.
3.2.4 Mx/Mn, UP,'
Press to view MAX/MIN value.
Press to select the value of each digital cycle.
3.2.5 REC/START
In velocity mode, press this key to store the current velocity into memory.
3.2.6 HOLD, DOWN,-
In basic modes press this key to hold the current reading, then press this key
again to unlock the holding.
Press to select the setting digital.
Wöhler FA 320
3.3 Settings
3.3.1 Entering non-sleep mode
When the meter is off, press and hold the POWER key and the Mx/Mn key for
more than two seconds to enter non-sleep mode.
3.3.2 Backlight
Press and hold the ENTER key and the HOLD key at the same time to turn on/off
the backlight.
3.3.3 Selecting the unit
When the meter is off, press the POWER key for more than two seconds to enter
the unit selection mode. Press ' or -to select the unit and then press ENTER to
save. (°C, %RH, m/s, m³/m, cm or °F, %RH, ft/m, cfm, inch).
3.3.4 Velocity with average
While the meter is in the velocity mode and the record is stored in the memory,
press the ENTER key to review the average value. Press the MX/MN key to view
the minimum/maximum value of the memorised velocity. Press the ENTER key
again to return to the normal mode.
The memorized values will be deleted after the meter is powered off.
Wöhler FA 320
3.4 Air volume
3.4.1 Setting the area
Press and hold the MODE key for more than two seconds to enter the air volume
mode.
To measure the volume, the outlet size must be input first.
There are three different ways to enter the size:
Length x Width:
This is the default choice.
Press the HOLD key to select the setting digital first, then press the MX/MN key to
select the appropriate value.
After having entered the length, shortly press the ENTER key to enter into the
width setting mode. Press ENTER again to finish the size setting and enter the
measuring mode (see 3.4.2).
Diameter:
While in default outlet setting mode (length), press the ENTER key for over two
seconds to choose the diameter setting.
Press the HOLD key to select the setting digital first, then press the MX/MN key to
select the appropriate value.
After this selection, shortly press ENTER again to finish the size setting and enter
the measuring mode (see 3.4.2).
Area:
While in the diameter setting mode, press the ENTER key for over two seconds to
enter the area setting.
Press the HOLD key to select the setting digital first, then press the Mx/Mn key to
select the appropriate value.
After this selection, shortly press ENTER again to finish the size setting and enter
the measuring mode (see 3.4.2).
Wöhler FA 320
3.4.2 Measurement
After having finished and left the size setting mode, there are 20 seconds waiting
time for you to put the vane to the outlet. During the 20 seconds waiting time, the
count down number will be displayed on the top left corner and the meeter will
beep when this time has finished.
If you want to start measuring immediately, just press the REC/START key to
start measuring the volume at once.
After having started measuring the volume, the meter will automatically count the
volume for 60 seconds to give an average value. During this 60 seconds, the
vane should be moved along the whole outlet to cover each area, so that the
measured data will be more accurate. The count down number is displayed on
the top-left corner as a reminder and the meter beeps, when the 60 seconds are
over.
After the time is up, the 60 seconds average volume will be indicated in the dis-
play.
If there is more than one outlet to be measured, press the ENTER key again to
repeat the procedure from the outlet size input. You can measure as many outlets
as you need.
After the measuring, you can press the Mx/Mn key to review the sum of all out-
lets. Press the HOLD key to review the last outlet volume.
3.5 Vane Replacement
Before connecting a new vane it is necessary to enter the calibration values of the
humidity slope indicated on the enclosed paper. For that purpose follow the fol-
lowing steps:
-While the meter is off, press the POWER key, the Mx/Mn key and the
REC/START key at the same time for more than 3 seconds to enter hu-
midity slope calibration mode.
-Enter the S-value pressing the HOLD and the Mx/Mn key.
-Press the ENTER key to save the new input.
-Enter the Z-value pressing the HOLD and the Mx/Mn key.
-Press the ENTER key to save the new input.
Wöhler FA 320
4. Declaration of Conformity
WÖHLER Messgeräte Kehrgeräte GmbH
Schützenstr. 41, D-33181 Bad Wünnenberg
declares that the device
Wöhler FA 320 Fan Anemometer
complies with the essential protection requirements of Council directive
89/336/EC, 92/31/EEC and 93/68/EEC on the approximation of the laws of the
Member States relating to electromagnetic compability.
The meter conforms to the following standards:
EN 61000-6-3 : 2001
EN 55022 : 1998 + A1 : 2000 + A2 : 2003
EN 61000-6-1 : 2001
EN 55024 : 1998 + A1 : 2001 + A2 : 2003
EN 61000-4-2/-3
This declaration is based on third party measurements.
Wöhler FA 320
5. Guarantee and Service
5.1 Guarantee
The guarantee period for the meter is 12 months from the sales date, provided
that it is used correctly.
This guarantee does not include the costs for transport and packing material in
case of repair. It will expire, if third persons, who are not authorized, repair or
change the device.
5.2 Service
We see SERVICE as a very important element in our business. That is why we
are still available to you even after the guarantee period has expired.
• An immediate repair will be carried out if you bring your meter to one of
our approved service centers listed below.
• You can obtain immediate help from our engineers by telephone.
5.3 Information on disposal
You may hand in any defective batteries taken out of the unit to our
company as well as to recycling places of public disposal systems or
to selling points of new batteries or storage batteries.
In the European Union, electronic equipment does not belong into
domestic waste but - in accordance with Directive 2002/96/EC of the
European Parliament and of the Council of 27 January 2003 on
Waste Electrical and Electronic Equipment - must be disposed of in an expert
manner. If you do no longer need this unit, please dispose of it in accordance with
the applicable statutory provisions.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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