ACIN FlowFinder mk2 Bedienungsanleitung
Rijswijk
@awsrijswijk
®
FlowFinder
MK
made in holland
Look at www.acin.nl for more information
tel: +31 70-3070703 Ifax: +31 70-3070938 Iemail:www.acin.nl I web: www.acin.nl
MANUAL
The FlowFinder mk2® is the successor of the well known FlowFinder 153, which has
proven itself as the benchmark for air ow measurements to balance mechanical air
supply and exhaust systems. The new FlowFinder mk2® is fully zero pressure compensated
in the range 10 to 550 m m3/hr (6 to 323cfm) and has a calculated compensation for its
resistance up to 850 m3/hr (500cfm).
“VALIDATING AND ADJUSTING VENTILATION SYSTEMS”
●Large range (10 to 850 m3/hr or 6 to
500cfm, supply and exhaust)
●Light and easy to handle
●Short measuring cycle
●With full battery 8 hours of
measurement (at ows < 100m3/hr)
●High accuracy
●Ventilation systems, also with low terminal
resistance
●Small air volumes
●Heat exchange units
●Natural ventilation
●Line and large diusers (with optional hoods or
by adding measurements)
Standard equipment:
●Battery charger
●Transport case
●User manual
●Calibration certicate
(traceable to primary standards)
●MicroSD card with USB and
SD adapter.
Options:
●Foldable hood 600 x 600mm
●Non-foldable hood 400 x 400mm
●Extra battery pack
Characteristics Applications
The new standard for air-balancing
19-11-2013 manual 3
Despite the fact that this manual has been carefully put together by ACIN instrumenten bv, no responsibility is accepted for
any errors in the manual and possible consequences. We are obviously very interested in your comments and addions.
No part of this publicaon may be reproduced and / or published by print, photocopy, microlm or any other method
without prior wrien permission of ACIN instrumenten bv.
CONTENTS
1. PARTS OF THE FLOWFINDER MK2® 4
2. SPECIFICATIONS OF THE FLOWFINDER MK2® 4
3. REMOVING AND CHARGING OF THE BATTERY PACK 5
4. SWITCHING ON OF THE FLOWFINDER MK2® 5
5. THE DISPLAY IN MEASURING MODE 6
6. DEFAULT SETTINGS 6
7. USING THE HOODS 7
8. MEASURING WITH THE FLOWFINDER MK2® 8
9. ADDING OF MEASUREMENTS 9
10. STORING THE DATA 9
11. PROCESSING THE STORED DATA 10
12. PROCESSING THE DATA IN EXCEL 11
13. NAMING THE DATA STORAGE LABELS 12
14. EMERGENCY STOP 12
15. SWITCHING OFF OF THE FLOWFINDER MK2® 12
16. STORING THE FLOWFINDER MK2® 12
17. CALIBRATION 12
18. NOTES 13
6
1
5
4
5
3
2
7
4 manual 19-11-2013
2. SPECIFICATIONS OF THE FLOWFINDER MK2®
SPECIFICATIONS FF MK2
Air ow range (supply and exhaust) 10..550 m³/uur with zero pressure compensaon
551..850 m³/uur with calculated compensaon
Air temperature range -20..+80oC
Uncertainty (@ 20°C) * 3% of the reading, with a minimum of 3 m³/hr
Repeatability beer than 1%, with a minimum of 3 m³/hr
Resoluon 1 m³/hr, 0.1cfm, 0.1l/s
RV range 0..100%
Full charge capacity 8 hours
Weight 2230 gram baery pack included
Dimensions FlowFindermk2 ø 260 x 350mm
Use the packing list to verify all
elements of the FlowFinder mk2® are
present. Avoid liing the FlowFinder mk2®
while holding onto a hood.
* Uncertainty is dened as the square root of the sum of the squares of non-lineairity, hysteresis and repeatability.
1. PARTS OF THE FLOWFINDERMK2
1. FlowFinder mk2® with display
2. Transport case (with key)
3. Baery pack (mounted onto the
FlowFinder mk2®, or stored in the case)
4. Baery charger
5. Hood 230x230x145mm
6. Hood 600x600mm (oponal)
7. MicroSD card, USB adapter, SD adapter
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3. REMOVING AND CHARGING
OF THE BATTERY PACK
4. SWITCHING ON OF THE
FLOWFINDER MK2®
There are two measuring modes:
‘Validate’ and ‘Adjust’. In validate mode
the FF decides when it is ready with a
measurement. The measured value will
be displayed only when the FF is ready.
In adjust mode, aer pushing the red
buon, a measured value is displayed
connuously. One can then adjust the
venlaon system while measuring.
Important:
When the FlowFinder mk2® is stored away for a longer period of me one should store the baery pack
separately, aer having it charged rst. Extra baery packs can be ordered from ACIN.
The baery pack has to be removed from
the FlowFinder mk2® before the charger
can be connected. While charging, the
colour of the LED indicates the status.
The baery pack has to be removed from the FlowFinder mk2® before the charger can be connected. While
charging, the colour of the LED indicates the status.
yellow : no baery pack connected
orange : fast charging
green-yellow : top of charging
green : trickle charging
orange-green : ERROR
6 manual 19-11-2013
5. THE DISPLAY IN MEASURING
MODE
The display in measuring mode shows a
number of parameters
Below the unit of ow is a bar that during a measurement will ll up in green, the length of the green bar
is proporonal to the airow.
1. me
2. date
3. USB connected: yes/no
4. status baery pack
5. pressure dierence ΔP in Pascal to
be compensated
6. temperature in °C of °F
7. relave humidity RH in %
8. measured ow in l/s, m³/u of CFM
When the FlowFinder mk2® is in rest and in measuring mode, you will nd below this bar a:
On the sides of the display there are a slot for a micro SD card, a mini USB port and a programming cable.
At this moment the SD card and the USB port cannot be used yet.
1. blinking ‘0’ : this means that the FF has been set to adjust
2. ‘- - -‘ : this means that the FF has been set to validate
6. DEFAULT SETTINGS
Press the white arrow in the right upper corner of the starng screen to go to Start Menu.
Choose Opons
This screen allows for the sengs to be changed. Once you are ready these sengs will be stored as the
default sengs.
1. Choose language Nederlands or English
2. Choose Units
3. Choose the unit of temperature: Celcius or Fahrenheit
4. Choose the unit for ow: l/s, m³/u or CFM
6. Set the Date:
6.1 Press date
6.2 Enter the year (yyyy)
6.3 OK
6.4 Enter the month (mm)
6.5 OK
6.6 Enter the day (dd)
6.7 OK
7. Set the Time:
7.1 Press me
7.2 Enter the hour (0 tot 23)
7.3 OK
7.4 Enter the minutes
7.5 OK
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Leave this menu by pressing the white arrow again. The Opons menu appears again.
5. Choose Validate or Adjust as default start up measurement of the FlowFinder mk2®
Leave the Opons menu by pressing the white ‘return’ arrow. The
Start Menu appears. From the Start Menu the FlowFinder mk2® will
go into measuring mode by touching ‘validate’ or ‘adjust’.
Preferably, the FlowFinder mk2® is used with at least the
straight hood, certainly for most supply grilles. If space
is limited certainly exhaust can be measured without a
hood.
The straight hood is placed on top of the housing and is
hold in place by pulling the O-rings over the lile black
knobs.
The same procedure can be used to mount the
600x600mm foldable hood.
For ows above 103CFM it is assumed that the
600x600mm hood is used.
Avoid liing the FlowFinder mk2® just using the hoods.
7. USING THE STRAIGHT HOOD 230X230X145mm AND
THE HOOD 600X600mm
8 manual 19-11-2013
8. MEASURING WITH THE FLOWFINDER MK2®
The FlowFinder mk2® has two measuring modes. The so-called
‘validaon mode’ and the ‘adjustment mode’. In the opons
menu one of these modes can be set as default. At start up the FF-
mk2 will be ready to measure in the default mode.
The measuring mode can be recognized by the red blinking ‘0’
(adjustment mode) or the ‘- - -‘ (validaon mode).
In validaon mode the FF-mk2 a measurement starts by pushing the red buon (behind the le knob).
The FF-mk2 decides when the measurement is ready, normally within 10 to 15 seconds. It will display the
measurement result which then can be stored by touching ‘store’.
In adjustment mode the FF-mk2 a measurement starts by pushing the red buon. The blinking number
turns green and will change depending on the air ow volume. The measurement will only stop aer the
red buon is pushed again. This way you can adjust the diuser or valve to the desired air ow. You may
take down the FF-mk2 to adjust the valve. Wait long enough unl a more or less stable reading is reached,
also aer placing the FF-mk2 back again. Always stop and start again when going from one measuring
locaon to another. The measuring result can’t be stored.
Switching between modes: push the ‘return’ buon in the right upper corner. Then you can select either
‘validate’ or ‘adjust’. To change the default mode you have to go to the opons menu.
To do a measurement, hold the FlowFinder mk2® by the le and right round handles and place the
instrument over the outlet or inlet you want to measure. Make sure to make a ght connecon by
pushing enough to avoid measuring secondary air.
Press the red buon behind the le knob shortly in order to start the measurement.
In validaon mode the text “compensang pressure” will appear, aer a few seconds followed by ”mea-
suring”. Also an arrow will appear on the boom of the display, indicang the direcon of the ow.
Aer approximately 10 seconds the result of the measurement will appear, expressed in l/s, m³/u of CFM.
In adjustment mode the colour of the blinking number will turn green and change unl it reaches the air
ow amount.
As a consequence of variaons in the venlaon system itself and to lower the total uncertainty,
we advise to repeat the measurement 2 or 3 mes shortly aer each other.
A new measurement can be started by pressing the red buon.
Best is to wait unl the venlator in the FF has come to a rest (at low ows) or runs at its non-zero
pressure compensated speed as dictated by the ow.
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9. ADDING OF MEASUREMENTS
10. STORING THE DATA
Thanks to the zero pressure compensaon of the FlowFinder mk2®, it is possible to measure the air ow
at part of the diuser. Because the FlowFinder mk2® acvely compensates its own resistance, the ow
through the other (free) part of the diuser will not or hardly be inuenced.
As an example, the ow through a line diuser can be measured by moving the FF across the diuser
evenly aer every measurement, and adding each measured value.
1. Execute a measurement in ‘Validate’
mode as described in chapter 8
2. Aer the measurement is ready the re-
sult will appear together with a buon
‘Store’
3. Touch ‘Store’
4. Now a screen with 8 buons will show.
The text in the buons can be dened
by the user.
5. Select one of the opons and a
numerical keypad will show
6. Here you can add a 4-digit numerical
idener to the record of this measure-
ment. This number
can be a house number or some num-
ber from a plan or some clever combi-
naon. You are free to
design your own data-id system.
7. Aer touching ‘ok’ the display will re-
turn to the measuring mode
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6. Now you should see a list of text les with the name format yyyymmdd (year month day).
The le names.txt will be discussed further down
7. An example of the data format is given below.
11. PROCESSING THE STORED DATA
1. Turn o the FF-mk2®
2. Remove the micro-SD card by pushing on it and then releasing it
3. Either the SD adapter or the USB adapter can be used to connect to your computer
4. Aer inserng the card, a screen ‘Automac…’ will pop up.
5. Select ‘Show maps and les’
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12. PROCESSING THE DATA IN EXCEL
1. Turn o the FF-mk2®
2. Remove the micro-SD card by pushing on it and then releasing it
3. Either the SD adapter or the USB adapter can be used to connect to your computer
4. When inserted a screen ‘Automac…’ will pop up. Ignore this screen or click cancel.
5. Open Excel
6. Select ‘Data’, ‘From text’
7. The Wizard ‘Import text’ will be acvated
8. Select the data le and ‘next’
9. Select ‘; ‘ as separator and ‘Connue’
10. The data are now ready for further processing and reporng
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