Wohler FA 320 Bedienungsanleitung

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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