PCE HVAC 2 Anemometer / air flow meter Owner’s Manual

PCE HVAC 2 Anemometer / air flow meter

Safety notes

Please read this manual carefully and completely before you use the device for the first time. The device may only be used by qualified personnel and repaired by PCE Instruments personnel. Damage or injuries caused by non- observance of the manual are excluded from our liability and not covered by our warranty.

• The device must only be used as described in this instruction manual. If used otherwise, this can cause dangerous situations for the user and damage to the meter.
• The instrument may only be used if the environmental conditions (temperature, relative humidity, …) are within the ranges stated in the technical specifications. Do not expose the device to extreme temperatures, direct sunlight, extreme humidity or moisture.
• Do not expose the device to shocks or strong vibrations.
• The case should only be opened by qualified PCE Instruments personnel.
• Never use the instrument when your hands are wet.
• You must not make any technical changes to the device.
• The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner, no abrasives or solvents.
• The device must only be used with accessories from PCE Instruments or equivalent.
• Before each use, inspect the case for visible damage. If any damage is visible, do not use the device.
• Do not use the instrument in explosive atmospheres.
• The measurement range as stated in the specifications must not be exceeded under any circumstances.
• Non-observance of the safety notes can cause damage to the device and injuries to the user.

We do not assume liability for printing errors or any other mistakes in this manual.
We expressly point to our general guarantee terms which can be found in our general terms of business.
If you have any questions please contact PCE Instruments. The contact details can be found at the end of this manual.

Specifications

Technical specifications

Manometer specifications

• 1 psi = 27.68 inH2O
• 1 psi = 68.947 mbar
• 1 psi = 703.072 mmH2O
• 1 psi = 6894.6 Pa FSO: Full Scale Output

Air velocity

and air velocity
Km/h (kilometers per hour)| 3.6 … 288.0| 0.1
MPH (miles per hour)| 2.24 … 178.66| 0.01
Knots (nautical miles per hour)| 2.0 … 154.6| 0.1

Air flow

• CFM: cubic feet per minute
• CFM (ft³/min) = Air velocity (ft/min) * Area (ft²) CMM: cubic meters per minute
• CMM (m³/min) = Air velocity (m/s) Area (m²) 60

Temperature

General specifications

75 % RH (30 … 40 °C)

45 % RH (40 … 50 °C)

Power supply| 9 V battery
Battery status indication| Yes
Dimensions| 206 x 95 x 45 mm
Weight| 297 g

Dimensions of the Pitot-Rohr

Delivery contents

• 1 x Flow meter PCE-HVAC-2 1 x Pitot tube
• 2 x flexible connection tubes 1 x USB cable
• 1 x PC software
• 1 x battery
• 1 x instruction manual
• 1 x carrying case

System description

Display

1. Minute : second or hour : minute indication
2. Pressure, velocity, air flow or temperature mode activated
3. Primary display
4. Air velocity unit
5. air pressure unit
6. PC connection indication
7. Auto power-off indication
8. Duct shape
9. Low battery indication
10. Hold indication
11. Duct dimension unit
12. Setup indication
13. Memory clearing indication
14. Number of readings saved
15. Memory indication
16. REC, MAX, MIN, AVG indication
17.  Temperature unit of primary display
18. Air flow unit
19. Temperature unit of secondary display
20. Date/time indication

Function keys

Press and hold for 2 seconds to exit min/max/avg hold function.

P/V/F| Press to switch between pressure, velocity and air flow display. Also shows the dimensions and shape of the duct.
Hold/Zero| Press to activate/deactivate the hold function. Press and hold for 2 seconds to zero the display.
Save/Clear| Press to save the current reading.

Press in memory recall mode to delete a reading.

Setup| Press to activate the display backlight.

Press and hold for 3 seconds to enter or leave the settings menu.

Unit ▲| Press to switch between the temperature units.

Press in setup to navigate upwards or to increase a value.

Unit ▼| Press to switch between the units of the second parameter. Press in setup to navigate downwards or to decrease a value.
Avg/Rec| Press and hold for 2 seconds to enter memory recall mode.

Press in memory recall mode to calculate a mean value of the data. Press in setup to enter a menu or to confirm a setting.

Getting started

 Power supply

Replacing the battery:

1. Turn off the device.
2. Loosen the screw of the battery compartment cover on the back side of the device
3. Remove the battery compartment cover
4. Replace the 9 V battery
5. Close the cover of the battery compartment and fasten the screw.

Operation

Measurement

Pressure measurement
To take a pressure measurement, follow these steps:

1.  Press “P/V/F” to get to the pressure mode (“PRESS”). In pressure mode, press “Unit
   ▼ ” to chance the measuring unit. You can switch between PSI, mbar, Pa, inH2O and mmH2O.

2. Connect a flexible tube to the “Input (+)” connector on the device and leave the “Ref (-)” connector unconnected.

3. Make sure that there are the same environmental conditions at the open end of the tube and the “Ref(-)” connector. Then press and hold “Hold/Zero” for 2 seconds to zero the display.

4. Place the open end of the tube in the area to be measured.

5. The display now shows the differential pressure between the input zone (tube) and the reference zone (meter) on the primary display. A positive value means that the pressure in the input zone is higher than in the reference zone. The device can measure a differential pressure of up to 5000 Pa.

Velocity measurement
Besides measuring the differential pressure, the device can also measure the air velocity. When doing so, the device uses standard conditions (21.1 °C; 1013 mbar).
To measure the air velocity, follow these steps:

1. Press “P/V/F” to get to the velocity mode (“VEL”). In velocity mode, press “Unit ▼” to change the measuring unit. You can switch between km/h, m/s, ft/min, MPH and knots.

2. Connect the “Input (+)” connection of the flow meter to the inflow pressure connection of the Pitot tube by using the white tube and connect the “Ref (-)” connection of the device to the static pressure connection of the Pitot tube by using the black tube (see picture below). Let the device stable under ambient conditions and press and hold
   “Hold/Zero” for 2 seconds to zero the display.

3. When taking a measurement, place the tip of the Pitot tube against the wind. Make sure that the axis of the Pitot tube is aligned with the air flow (it should not deviate for more than ±10 °).
   The primary display now shows the air velocity. If the display shows negative values or “Error”, please check if the tubes are connected properly.

Air flow measurement
The device can also measure air flow. When doing so, the device uses standard conditions (21.1 °C; 1013 mbar).
To measure air flow, follow these steps:

1. Connect the Pitot tube to the device as described in chapter 5.1.2.

2. Press “P/V/F” until “Duct Shape” appears on the bottom left side of the display. Now you can see the duct shape and the duct dimensions on the display.
   If you set a circular duct shape the display shows a ● symbol on the bottom left side. The primary display also shows the diameter in cm or inch.
   If you set a rectangular duct shape the display shows a ■ symbol on the bottom left side. The primary display shows the width of the duct in cm or inch (“W=”). Press
   “P/V/F” to view the height of the duct (“H=”). If you want to change the duct shape and dimensions see chapter 5.3.2 for more information.

3.  Press “P/V/F” again to get to the air flow mode (“FLOW”). In air flow mode, press
   “Unit ▼” to change the measuring unit. You can switch between CMM and CFM.

4. Place the Pitot tube in the duct and align the tip as described in chapter 5.1.2.
   The primary display now shows the air flow.

Further functions

Temperature measurement
The ambient temperature is shown on the secondary display. You can switch between °C and °F by pressing “Unit ▲”.

Hold function
Press the “Hold/Zero” key to freeze the current reading on the display. A “HOLD” indication appears.
To unfreeze the display, press “Hold/Zero” again.

MIN, MAX, AVG function

• Press the “MIN/MAX” key to switch between maximum (MAX), minimum (MIN) and average
• (AVG) function. The secondary display shows the time since the activation of the function.
• Press “P/V/F” to see the MAX/MIN/AVG value of the pressure, velocity, air flow or temperature.
• Press and hold the “MIN/MAX” key for 2 seconds, to exit this function.

Save readings
The flow meter has an internal memory which can hold up to 99 readings for each measuring parameter (pressure, velocity and air flow).
To save a reading, press the “Save/Clear” key.

Attention:
When the memory is full, new readings cannot be saved anymore. If you try to save a new reading, the display shows a “FU” (full) indication and the device gives out a beeping noise. You have to delete some of the stored data in order to save new readings.

View/delete saved data

1.  Press “P/V/F” to select the measuring parameter of which you want to see the saved data.
2. Press and hold the “Avg/Rec” key to enter the memory. Now you can see the reading which has been saved last. Use “Unit ▲“ and „Unit ▼” to find the desired reading.
3. When more than one reading has been saved, the device can calculate the mean value by pressing the “Avg/Rec” key.
4. Press and hold “Avg/Rec” for 2 seconds to exit the memory function.

To delete a reading, follow these steps:

1. Press “P/V/F” to select the measuring parameter of which you want to see the saved data.
2. Press and hold the “Avg/Rec” key to enter the memory. Now you can see the reading which has been saved last. Use “Unit ▲“ and „Unit ▼” to find the desired reading.
3. Press “Save/Clear” to delete the selected reading. Keep in mind, that the displayed number of readings changes.
4. Press and hold “Avg/Rec” for 2 seconds to exit the memory function.

Settings

Press and hold the “Setup “ key for 2 seconds to enter the Settings. A “SETUP” indication  appears on the display.
In the settings, you have the following options:

P/V/F ” key
SLP| Turn auto power-off function on/off
ALL| Clear the internal memory

• Press the “Unit ▲“ and „Unit ▼” keys to navigate through the different settings and to adjust the values.
• Press “Avg/Rec” to confirm the selection and to save the adjusted values.

ATTENTION:
You cannot enter the settings while the MIN/MAX/AVG mode is active.

Set the duct dimension units
To set the duct dimension unit, follow these steps:

1. If you are in the settings menu, use “Unit ▲“ and „Unit ▼” to select the menu item
   “Unit” and press “Avg/Rec” to enter.

2. The display either shows “cm” or “in” (inch).

3. Select the desired option by using “Unit ▲“ and „Unit ▼” and confirm the adjustment by pressing “Avg/Rec”

Duct settings
If you are in the settings menu, use “Unit ▲“ and „Unit ▼” to select the menu item “Duct Shape” and press “Avg/Rec” to enter. To adjust the settings, follow these steps:
Duct shape:

1. The display shows the duct shape which is currently selected. A ■ symbol means rectangular shape while a ● symbol means circular shape.
2. Use “Unit ▲“ and „Unit ▼” to select the desired duct shape and press “Avg/Rec” to confirm.

Change duct dimensions (rectangular):

1.  If the duct is rectangular the display shows “W=” and you can adjust the width of the duct. The value is shown on the primary display.
2. Use “Unit ▲“ and “Unit ▼” to move the decimal point.
3. Press “Save/Clear”. The last digit begins to flash. Use “Unit ▲“ and “Unit ▼” to increase or decrease the value. Press “Save/Clear” again to go to the next digit. Once you have adjusted the width to your needs, press “Avg/Rec” to confirm.
4. Now the display shows “H=” and you can adjust the height of the duct. The value is shown on the primary display.
5. Use “Unit ▲“ and “Unit ▼” to move the decimal point.
6. Press “Save/Clear”. The last digit begins to flash. Use “Unit ▲“ and “Unit ▼” to increase or decrease the value. Press “Save/Clear” again to go to the next digit. Once you have adjusted the height to your needs, press “Avg/Rec” to confirm.

Change duct dimensions (circular):

1. If the duct is circular the display shows “D=” and you can adjust the diameter of the duct. The value is shown on the primary display.
2. Use “Unit ▲“ and “Unit ▼” to move the decimal point.
3. Press “Save/Clear”. The last digit begins to flash. Use “Unit ▲“ and “Unit ▼” to increase or decrease the value. Press “Save/Clear” again to go to the next digit. Once you have adjusted the diameter to your needs, press “Avg/Rec” to confirm.

Auto power-off
The flow meter comes with an automatic power-off function which turns it off after 20 minutes of inactivity.
To change the settings of the automatic power-off function, follow these steps:

1. If you are in the settings menu, use “Unit ▲“ and “Unit ▼” to select the menu item “SLP” and press “Avg/Rec” to enter.
2. The display now shows either “ON” (auto power-off active) or “OFF” (auto power-off inactive).
3. Use “Unit ▲“ and “Unit ▼” to select the desired option and press “Avg/Rec” to confirm.

Change the display mode
To change the measuring parameters which can be accessed by pressing “P/V/F”, follow these steps:

1.  If you are in the settings menu, use “Unit ▲“ and “Unit ▼” to select the menu item “Type” and press “Avg/Rec” to enter.
2. Here you can choose between 3 different options:
3.  Pressure and air velocity
4. Air velocity and air flow
5. Pressure, air velocity and air flow
6. Use “Unit ▲“ and “Unit ▼” to select the desired option and press “Avg/Rec” to confirm.

Clear the memory
To clear the internal memory of the flow meter, follow these steps:

1. If you are in the settings menu, use “Unit ▲“ and “Unit ▼” to select the menu item “ALL” and press “Avg/Rec” to enter.

2.  Press the “Save/Clear” key to select the measuring parameter of which you wish to delete all saved data. The following options are available:
   PRESS: Clear all pressure data
   VEL: Clear all velocity data
   FLOW: Clear all air flow data

3.  Press “Unit ▲“ or “Unit ▼” until the display shows “YES” and press “Avg/Rec” to delete the data.

Software

Installation
To install the drivers and the software, follow these steps:

1. Download the software: https://www.pce-instruments.com/english/download-win_4.htm and unpack the zip file.

2. Wait for the Windows AutoPlay function and run the “SETUPGUIDE.exe” file.

3. The software and the driver installers start automatically.

4.  Install the drivers first by clicking on “Install” in the driver installer. Follow the instructions on the screen.

5. After that, install the software by clicking “Next” in the software installer. Choose an installation directory and follow the instructions on the screen.

Operation
Start the software. You get to the main screen:

1. Menu bar
2.  Real-time graph
3. Real-time display of the device
4. Status bar
5.  Measuring parameters and alarm settings

Establishing data connection
To establish the data connection between the software and the device, follow these steps:

1. Make sure that the device is connected to the PC.
2. Click on “COM Port” in the menu bar and select “Autodetect”. The software now tries to establish the connection automatically.

You can also select the COM Port manually:

1. Make sure that the device is connected to your PC.

2.  Open the Windows Device Manager and click on “Connections (COM & LPT)” to find the correct COM port.
   

3. Click on “COM Port” in the menu bar of the software and select “Manualdetect”. Now you can select different COM ports (“COM1” – “COM4”) or type in a COM port manually (“Other COM”).

Take a real-time measurement B
To take a real-time measurement, follow these steps:

1. Click on “RealTime(R)” in the menu bar and select “Run” or click on the “Start” symbol below the menu bar.
2. A new window appears where you have to set the sampling rate. Type in the time between the single measurements in seconds.
3. Click on “OK” to start the measurement. The readings are shown as real-time graph.
4. Click on “RealTime(R)” in the menu bar and select “Stop” or click on the “Stop” symbol below the menu bar to stop the real-time measurement.

Below the real-time graph you have the following options:

• At “Parameters” you can select the measuring parameters which appear in the graph.
• At “Events” you can see the minimum and maximum values for each parameter since the software has been started.
•  At “Limits” you can set threshold levels for each parameter which trigger an alarm.
• At “Alarm” you can see an optical indication when set threshold levels are surpassed or undercut.

Save data
To save the results of the real-time measurement, follow these steps:

1. Click on “File(f)” in the menu bar and select “Save”.
2. A new window appears where you can select the saving directory and the file name.
3. Click on “Save” to store the data in the set location. The data is stored in *.xls format and can be viewed with Excel.

Print data
To print out the results of the real-time measurement, follow these steps:

1. Click on “File(f)” in the menu bar and select “Print”
2. A new window appears where you can adjust the printing settings.
3. Click on “OK” to print out the results.

Load data
To load saved data, follow these steps:

1. Click on “File(f)” in the menu bar and select “Open”.

2. A new window appears:

3. Click on “Download”. A new window appears where you can select and open a saved file. Select the desired file and click on “Open”.

4. Now you can view the real-time graph of the stored data. The file also appears in the table on the left side of the window. You can open multiple files and switch between them.

5. By clicking on “Print”, you can print out the selected data.

6. By clicking on the options “Undozoom”, “Press”, “Vel”, “Temp”, “Flow”, “Combine” and “Y Axis”, you can change the look of the graph.

Error codes

In case the device cannot perform the internal diagnosis properly, an error code appears on the display and all function keys are frozen.

OL: Value of pressure or air velocity is above the measuring range
-OL: Value of air velocity or air flow is below the measuring range
Error: Value of air velocity or air flow is below the measuring range

Warranty

You can read our warranty terms in our General Business Terms which you can find here: https://www.pce-instruments.com/english/terms.

Disposal

For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament applies. Due to the contained pollutants, batteries must not be disposed of as household waste. They must be given to collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use them or give them to a recycling company which disposes of the devices in line with law.
For countries outside the EU, batteries and devices should be disposed of in accordance with your local waste regulations.
If you have any questions, please contact PCE Instruments.

PCE Instruments contact information

Germany

• PCE Deutschland GmbH

• Im Langel 4

• D-59872 Meschede

• Deutschland

• Tel.: +49 (0) 2903 976 99 0

• Fax: +49 (0) 2903 976 99 29 info@pce-instruments.com

• www.pce-instruments.com/deutsch
  United States of America

• PCE Americas Inc.

• 711 Commerce Way suite 8 Jupiter / Palm Beach

• 33458 FL

• USA

• Tel: +1 561-320-9162

• Fax: +1 561-320-9176

• info@pce-americas.com

• www.pce-instruments.com/us
  The Netherlands

• PCE  B.V.

•  15

• 7521 PH Enschede

• Nederland

• Telecon: +31 (0) 900 1200 003 Fax: +31 53 430 36 46

• info@pcebenelux.nl

• www.pce-instruments.com/dutch
  China

•  (Shenzhen) Technology Ltd. West 5H1,5th Floor,1st Building Industrial Park,

• City
  China

• Tel: +86 0755-32978297

• lko@pce-instruments.cn

• www.pce-instruments.cn

France

• PCE Instruments France EURL

• France

• de fax: +33 (0) 972 3537 18 info@pce-france.fr

• www.pce-instruments.com/french

• United Kingdom

• PCE Instruments UK Ltd

• Unit 11 Southpoint Business Park Ensign Way, Southampton Hampshire

• United Kingdom, SO31 4RF

• Tel: +44 (0) 2380 98703 0

• Fax: +44 (0) 2380 98703 9

• info@industrial-needs.com

• www.pce-instruments.com/english

• Chile

• PCE Instruments Chile SA

• RUT 76.423.459-6

• Calle Santos Dumont N° 738, Local 4 Comuna de Recoleta, Santiago, Chile Tel. : +56 2 24053238

• Fax: +56 2 2873 3777

• info@pce-instruments.cl

• www.pce-instruments.com/chile
  Turkey

• Tel: 0212 471 11 47

• info@pce-cihazlari.com.tr

• www.pce-instruments.com/turkish

Spain

• PCE S.L.
• Calle Mayor, 53
• Tel. : +34 967 543 548
• Fax: +34 967 543 542
• info@pce-iberica.es
• www.pce-instruments.com/espanol
• Italy
• PCE Italia
•  6 55010 LOC. GRAGNANO CAPANNORI (LUCCA)
• Italia
• Telephone: +39 0583 975 114
• Fax: +39 0583 974 824
• info@pce-italia.it
• www.pce-instruments.com/italiano
• Hong Kong
• PCE Instruments HK Ltd.
• Unit J, 21/F., COS Centre
• 56 Tsun Yip Street
• Kwun Tong
• Kowloon, Hong Kong
• Tel: +852-301-84912
• jyi@pce-instruments.com
• www.pce-instruments.cn

References

• France.fr : Explore France and its wonders - Explore France
• iberica.es
• instruments.cn - The domain is available for purchase
• Computer Instruments | Home
• Discover Italy: Official Tourism Website - Italia.it
• N.E.E.D.S., (Nutritional Ecological Environmental Delivery System) specializes in providing products, information, and education
• PCE（北京）科技有限公司
• Improtek LTDA Distribuidor oficial de PCE Instruments | PCE Instruments
• Download vom Hersteller | PCE Instruments

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