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testo 416 - Digital 16 m m v an e anemometer
0560 0416
Instruction manual
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Contents
1
2
3
4
5
6
7
8
Contents
About this document ........................................................................... 3
Safety and disposal .............................................................................. 3
2.1 Security .................................................................................................. 3
2.2 Disposal ................................................................................................. 4
Product-specific information ............................................................... 5
Intended use ......................................................................................... 5
Product description ............................................................................. 6
5.1 Instrument overview ............................................................................... 6
First steps ............................................................................................. 7
6.1 Inserting / changing batteries ................................................................. 7
6.2 Getting to know the product ................................................................... 8
6.2.1 Connecting probes ................................................................................. 8
6.2.2 Switching the instrument on and off ....................................................... 8
6.2.3 Switching the display illumination on and off .......................................... 8
6.3 Establishing a Bluetooth® connection ..................................................... 9
6.3.1 Establishing a Bluetooth® connection to the testo Smart App .............. 10
Using the product ............................................................................... 11
7.1 Controls on the measuring instrumen t .................................................. 11
7.1.1 Implementing settings .......................................................................... 12
7.1.2 Opening configuration mode ................................................................ 13
7.1.3 Setting the unit ..................................................................................... 13
7.1.4 Setting the area .................................................................................... 14
7.1.5 Carrying out a reset of the setting menus ............................................. 14
7.1.6 Carrying out a reset of the measuring instrument................................. 14
7.2 Measuring ............................................................................................ 15
7.2.1 Freezing a reading, displaying the maximum/minimum v alue .............. 15
7.2.2 Resetting maximum/minimum v alues ................................................... 15
7.2.3 Carrying out multi-poin t mean calcul at io n ............................................ 16
7.2.4 Carrying out continuous mean calcul atio n ............................................ 17
7.3 Printing data ......................................................................................... 18
Controls via testo Smart App ............................................................ 19
8.1 Overview of operating controls ............................................................. 19
8.2 App options .......................................................................................... 21
8.2.1 Setting the language ............................................................................ 21
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Contents
9
10
11
8.2.2 Displaying App Info .............................................................................. 21
8.2.3 Displaying the tutorial .......................................................................... 21
8.3 Application menus ............................................................................... 22
8.3.1 Selecting an application menu ............................................................. 22
8.3.2 Setting favourites ................................................................................. 22
8.3.3 Displaying information about an application ........................................ 22
8.4 Making measuring instrument settings ................................................ 23
8.4.1 Configuring the measuring inst rumen t menu ....................................... 25
8.4.2 Setting Auto Off ................................................................................... 26
8.4.3 Activating damping .............................................................................. 26
8.4.4 Setting the Correction Factor ............................................................... 27
8.4.5 Setting the area ................................................................................... 27
8.5 Display of the readings ........................................................................ 28
8.6 Adjusting the view ................................................................................ 28
8.7 Exporting readings ............................................................................... 29
8.7.1 Excel (CSV) Export .............................................................................. 30
8.7.2 PDF Export .......................................................................................... 30
8.8 Perform Firmware update .................................................................... 31
Maintaining the product .................................................................... 32
9.1 Inserting / changing batteries ............................................................... 32
9.2 Cleaning the instrument ....................................................................... 32
Technical data for testo 416.............................................................. 33
Tips and assistance ........................................................................... 34
11.1 Questions and answers ....................................................................... 34
11.2 Accessories and spare parts................................................................ 35
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1
2
2.1
1 About this document
About this document
• The instruction manual is an integral part of the instrument.
• Keep this documentation to hand so that you can refer to it when necessary.
• Always use the complete original instruction manual.
• Please read this instruction manual through carefully and familiarize yourself
with the product before putting it to use.
• Hand this instruction manual on to any subsequent users of the product.
• Pay particular attention to the safety instructions and warning advice in order
to prevent injury and damage to the product.
Safety and disposal
Security
General safety instructions
• Only operate the product properly, for its intended purpose, and within the
parameters specified in the technical data.
• Do not apply any force.
• Do not operate the instrument if there are signs of damage to the housing or
connected cables.
• Dangers may also arise from objects to be measured or the measuring
environment. Always comply with the locally valid safety regulations when
carrying out measurements.
• Do not store the product together with solvents.
• Do not use any desiccants.
• Only perform maintenance and repair work on this instrument that is
described in this documentation. Follow the prescribed steps exactly when
doing the work.
• Use only original spare parts from Testo.
Batteries
• Improper use of batteries may cause the batteries to be destroyed, or lead to
injury due to current surges, fire or escaping chemicals.
• Only use the batteries supplied in accordance with the instructions in the
instruction manual.
• Do not short-circuit the batteries.
• Do not take the batteries apart and do not modify them.
3
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2 Safety and disposal
Risk of death!
Indicates possible serious injury.
Indicates possible minor injury.
CAUTION
Indicates
2.2
• Do not expose the batteries to heavy impacts, water, fire or temperatures in
excess of 60 °C.
• Do not store the batteries in the proximity of metal objects.
• In the event of contact with battery acid: rinse affected areas thoroughly with
water, and if necessary consult a doctor.
• Do not use any leaky or damaged batteries.
Warnings
Always pay attention to any information denoted by the following warnings.
Implement the precautionary measures specified!
DANGER
WARNING
CAUTION
possible damage to equipment.
Disposal
• Dispose of faulty rechargeable batteries and spent batteries in accordance
with the valid legal specifications.
• At the end of its useful life, deliver the product to the separate collection
point for electric and electronic devices (observe local regulations) or return
the product to Testo for disposal.
• WEEE Reg. No. DE 75334352
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3
4
3 Product-specific information
Product-specific information
• Do not carry out measurements on live components.
• Do not expose handles and feed lines to temperatures in excess of 70°C
unless they are expressly approved for higher temperatures. Temperature
specifications on probes/sensors refer only to the measuring range of the
sensor system.
• Only open the measuring instrument if this is expressly described in the
documentation for the purposes of maintenance or servicing.
Intended use
The testo 416 is a compact measuring instrument for mea su ring flow velocities
by means of a permanently connected telescopic vane. It is intended for indoor
use only.
The product is designed for the following tasks/areas:
• Volume flow measurements in ducts
The product should not be used in the following areas:
• In potentially explosive atmospheres.
• For diagnosti c mea sure ment s in the medi cal fiel d.
5
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5
5.1
1
2
3
Probe
4
Battery compartment
CAUTION
5 Product description
Product descript ion
Instrument overview
Control keys
Display
Explanation of icons
Refer to instruction manual
Damage to sensor possible!
- Do not touch sensor!
- Close the protective sleeve after the meas urement.
6
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6
6.1
The instrument is switched off.
1
Open the battery compartment (on the back of the instrument) via the
2
Insert or replace batteries (3 x AA
3
Close the battery compartment.
+ - +
6 First steps
First steps
c
Inserting / changing batteries
WARNUNG
Serious risk of injury to the user and/or destruction of the instrument.
There is a risk of explosion if the batteries are replaced with ones that
are the wrong type.
- Only use non-rechargeable alkaline batteries.
snap lock.
alkaline batteries).
Observe the polarity!
When not in use for a long period: Take out the batteries.
Symbol explanation
Do not allow children under 6 years of age to play with batteries.
Do not throw batteries in the trash.
Do not charge batteries.
Do not place batteries near fire.
Batteries are recyclable.
7
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6.2
6.2.1
6.2.2
1
Press the On/Off key (0.5 sec ).
1
Press and hold down (2 sec) the On/Off key.
6.2.3
The measuring instrument is switched on.
1
Press and hold down (2 sec) the MENU/ENTER key.
6 First steps
Getting to know the product
Connecting probes
The required probes are permanently connected or integrated. It is not possible
to connect any additional sensors.
Switching the instrument on and off
Switching on
Measurement view is opened:
The current reading is displayed or ----- lights up if no reading is
available.
Switching off
The display turns off.
Switching the display illumination on and
off
The display illumination is switched on or off.
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6.3
The measuring instrument is switched on.
To enable the Bluetooth® connection
Establishing a Bluetooth® connection
The instrument can be connected to the testo Smart App via
Bluetooth
for the first time, press and hold
(approx. 2 sec) the ◄ key.
®
connection
6 First steps
While th e instrume nt is trying to
establish a Bluetooth
®
connection,
the icon flashes on the display.
Bluetooth
®
remains enabled until it is
disabled manually by pressing and
holding (approx. 2 sec) the ◄ key.
The measuring instrument saves the
Bluetooth
on the configuration, starts up with
Bluetooth
®
setting and, depending
®
enabled or disabled.
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6.3.1
Bluetooth® is enabled in the measuring instru ment.
1
Open the testo Smart App.
The app automatically searches for Bluetooth® devices in the vicinity.
2
In the Sensors menu, check whether the required instrument is
If necessary, switch the instrument to be connected off and on again
When the testo Smart App is connected to the measuring instrument,
6 First steps
Establishing a Bluetooth® connection to the
testo Smart App
To establish a connection via Bluetooth
tablet or smartphone with the Testo Smart App already
installed on it.
You can get the App for iOS instruments in the App Store
or for Android instruments in the Play Store.
Compatibility:
Requires iOS 13.0 or later/And r oid 8.0 or later,
requires Bluetooth
connected.
®
4.2.
®
, you need a
to restart the connection module.
the icon appears on the measuring instrument display.
The measuring instrument automatically synchronizes its date and
time settings with the testo Smart App.
Once connected successfully, the current measured value from the
measuring instrument appears on the app screen in the Live view.
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7
7.1
The instrument is switched on.
The testo Smart App is installed on the smartphone and con nect ed
Settings and controls are implemented either on the instrument or via
1 On/Off / MODE/END key
2
Bluetooth® / ◄ key
3
4
Parameter 1 unit
5
Parameter 1 measured value display
6
7 Using the product
Using the product
Controls on the measuring ins trument
to the instrument via Bluetooth®.
the app.
If the measuring instrument is connected to the testo Smar t App,
settings can only be made via the app. The measuring instrument then
remains in the measurement view and other menus, e.g. Settings,
cannot be opened.
Battery indicator
Parameter 2 measured valu e disp lay
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7 Using the product
8 Print / ► key
9 Illumination
MENU/ENTER
7.1.1
1
Press the relevant key to select the functions
Bluetooth® (long press)
Switch the Bluetooth® connection on
Arrow left
Freeze reading (HOLD function),
Decrease value, select option
On/Off (long press)
Switches the instrument on or off
MODE/END
Select or end multi-point or continuous
Display illumination (long press)
OFF (display illumination not active) or
7
Parameter 2 selec ted unit
/
key
Implementing settings
Selecting, opening and setting functions
Secondary assignment (long press)
All keys with a grey corner have a secondary assignment, which can be
selected by pressing and holding the key for a longer time (2 sec).
Adjustable functions
Ensure correct settings: all setting s are transfer r ed imm edi at ely . There
is no Cancel function.
Function Setting options/comments
or off
display maximum/minimum value.
In configuration mode:
mean calculation.
ON (display illumination active)
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7 Using the product
MENU/ENTER
Open configuration mode
measuring instrument if it is connected
Confirm input
Print (long press)
Output readings via external printer
Arrow right
In configuration mode:
7.1.2
The instrument is switched on and is in the measurement view.
1
Press MENU/ENTER until the display changes.
Press MENU/ENTER to switch to the next function. You can leave
7.1.3
Configuration mode is open, “UNITS” is displayed.
1
Press ◄ / ► to choose between metric (“METR”) and imperial
2
Press ◄ / ► to set the required unit for the top line (m/s, fpm) and
Function Setting options/comments
Start continuous measurement /
record multi-point readings
(Operation also possible direct ly on
to the app)
In configuration mode:
Increase value, select option
Opening configuration mode
The instrument is now in configuration mode.
configuration mode at any time. To do this, press MODE/END until the
instrument has changed to the measurement view. Any changes that
have already been made in configuration mode will be saved.
Setting the unit
(“IMPER”) units of measurement and confirm with MENU/ENTER.
confirm with MENU/ENTER.
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3
Press ◄ / ► to set the required unit for the bottom line (m3/h, l/s, cfm)
7.1.4
Configuration mode is open, “AREA” is displayed.
1
Press ◄ / ► to select whether the cross-sectional area is to be
2
Press ◄ / ► to set the cross-sectional area and confirm with
7.1.5
Configuration mode is open, “M. RES” (menu reset) is displayed.
1
Press ◄ / ► to select the required option and confirm with
via the testo Smart App are displayed again.
7.1.6
Configuration mode is open, “RESET” is displayed.
1
Press ◄ / ► to select the required option and confirm with
settings.
7 Using the product
and confirm with MENU/ENTER.
Setting the area
entered in m² or in mm² and confirm with MENU/ENTER.
MENU/ENTER.
The measuring instrument can show a maximum of 5 digits in the
display (99999 mm²). Conversions from m² to mm² with a value greater
than 0.09 m² are therefore not possible!
Carrying out a reset of the setting menus
MENU/ENTER:
o NO: Do not carry out reset.
o YES: Carry out reset. All concealed menus that were hidden
The instrument returns to measurement view.
Carrying out a reset of the measuring
instrument
MENU/ENTER:
o NO: Do not carry out reset.
o YES: Carry out reset. The instrument is reset to the factory
The instrument returns to measurement view.
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7.2
The instrument is switched on and is in the measurement view.
1
Position the probe.
2
Read the measured values on the display.
7.2.1
1
Press ◄ several times until the desired value is display e d.
The following are displayed in turn:
o C urr ent mea suri ng valu e
7.2.2
1
Press ◄ several times until Max or Min is shown.
2
Hold down ◄ (approx. 2 s).
All maximum and minimum values are reset to the current reading.
7 Using the product
Measuring
Position the probe head in the flow
so that the point marking shown on
the probe head is exposed to the
flow.
The correct measurement value is
determined by rotating the probe
slightly in both directions until the
maximum value is displayed.
Freezing a reading, displaying the
maximum/minimum value
The current reading can be frozen. The maximum and minimum values since
the last time the instrument was switched on in the standard view or during a
multi-point or continuous measurement can be displayed.
o Hold: frozen measured value
o Max: Maxi mum value
o Min: Minimum value
Resetting maximum/minimum values
The maximum/minimum values of all channels can be reset to the current
reading.
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7 Using the product
7.2.3
1
Press MODE/END.
The number of readings recorded is displayed in the upper line, while
2
To record readings (in the desired quantity):
3
To end measurement and calculate the mean value:
4
To switch back to the measuring view:
Carrying out multi-point mean calculation
flashes.
the current reading is displayed in the lower line.
Press MENU/ENTER (several times).
Press MODE/END.
and flash.
The number of measured values and the calculated multi-point mean
value are displayed.
Press MODE/END.
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7 Using the product
7.2.4
1
Press MODE/END twice.
The elapsed measuring time (mm:ss) is display ed in the upper line,
2
Start measurement:
3
To interrupt/continue measure ment:
4
To end measurement and calculate the mean value:
5
To switch back to the measuring view:
Carrying out continuous mean calculation
flashes.
while the current reading is displayed in the lower line.
Press MENU/ENTER.
Press MENU/ENTER each time.
Press MODE/END.
and flash.
The measurement period and the calculated continuous mean value
are displayed.
Press MODE/END.
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7 Using the product
7.3
A testo Bluetooth®/IRDA printer (order no. 0554 0621) is connected
1
Press and hold ► to transfer the data to the printer.
1
Instrum ent name
2
Firmware version and serial
number
3
Date and time of printout
4
Measuring type and measured
duration
5
Measurment values
6
Measurement parameters
Printing data
via Bluetooth and switched on.
When first setting up a connection between the testo measuring
instrument and the testo Bluetooth
phase can last up to 30 seconds.
®
/IRDA printer, the initialization
Data is printed out (LED on the printer lights up green).
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8
8.1
Switch between the views (live,
graphic, table)
Display of connected measuring
instruments including reading s
Measurement configuration (the
and the application selected)
8 Controls via testo Smart App
Controls via testo Smart App
If the measuring instrument is connected to the testo Smart App, it is primarily
operated via the app. The measuring instrument remains in the measurement
view and settings menus cannot be opened on the measuring instrument.
Overview of operating cont rols
1
Choice of applications
3
menu changes depending on the
5
measuring instrument connected
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2
4
Start/stop
Configuration of the measuring
6
instrument
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8 Controls via testo Smart App
Searching
Display report
Measure
Customer
Memory
Sensors
Settings
Help and Information
Other applications
Additional symbols on the user interface of the app (not numbered)
One level back
Exit view
Share measurement data/repo rt
Favourite
Deleting
Further information
Multiple selection
The Main menu can be accessed via the icon at top left. To exit the main
menu, select a menu or right-click on the guided menus. The last screen
displayed is shown.
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8.2
App options
8.2.1
1
2
Select Settings.
3
Select Language.
4
Select the required language.
8.2.2
1
2
Select Help and Information.
3
Select Instrument information.
The version number of the app and the ID are displayed.
8.2.3
1
2
Select Help and Information.
3
Click X to quit the tutorial.
Setting the language
Click on .
8 Controls via testo Smart App
A selection list is displayed.
The language is changed.
Displaying App Info
In App Info you can find the version number of the installed App.
Click on .
Displaying the tutorial
The tutorial guides you through the first steps in operating the testo
Smart App.
Click on .
The tutorial is displayed. In the tutorial, swipe to display the next page.
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8 Controls via testo Smart App
8.3
8.3.1
1
A selection of menus for various applications is displayed.
2
Select the required application.
8.3.2
1
A selection of menus for various applications is displayed.
2
Select the application you want to set as a favourite.
3
8.3.3
1
2
Application menus
Selecting an application menu
Click on .
Your selected application is displayed.
Setting favourites
Click on .
Click on .
The star is displayed in orange: .
Displaying information about an application
Click on .
A selection of applications is displayed.
Click on .
The information about an application is displayed.
22
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8.4
The measuring instrument is connected to the testo Smart App.
1
2
3
Click on the required measuring instrument.
Information about the model, order number, serial number and
4
Click on the Settings tab.
- A window with settings for the respective measuring ins trum ent
8 Controls via testo Smart App
Making measuring instrument settings
Click on .
The main menu opens.
Click on Sensors.
The Sensors menu opens.
firmware version is displayed.
opens.
In addition to the settings that can be performed on the measuring
instrument, additional setting s can als o be made.
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8 Controls via testo Smart App
5
Click on the blue text under a setting
Changes to the measuring
heading to activate or disable
settings or to open an input window
to enter a specific value or select a
unit.
For details on the settings options,
see the following sub-sections.
instrument settings in the app are
transferred directly to the measuring
instrument. Synchronization with the
app is confirmed on the measuring
instrument via “SYNC DONE”.
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8.4.1
The Settings tab in the Sensors menu is open.
1
Activate Customization instrument
8 Controls via testo Smart App
Configuring the measuring instrument
menu
The testo Smart App can be used to set which settings menus should be
available or hidden on the measuring instrument itself.
menu and click on the blue text
Change instrument menu list
under the settings heading.
The Customization instrument
menu dialogue opens.
On the measuring instrument, the
following menus can be displayed or
hidden:
o Setting the unit
o Area
o Funnel factor
(testo 417 only)
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8 Controls via testo Smart App
2
Deactivate the checkboxes for the
8.4.2
The Settings tab is open.
1
Enable Activate Auto-off using the slider.
The measuring instrument switches off automatically if no key is
8.4.3
The Settings tab is open.
1
Enable Activate damping using the slider.
measuring instrument menus that
are no longer to be displayed on the
measuring instrument itself.
The menus belonging to the
deactivated entries will no longer be
displayed in the measuring
instrument menu after the next
synchronization.
These settings can be reset
via the menu reset “M.RES”
and then all settings menus
will be displayed on the
measuring instrument again.
Setting Auto Off
pressed for 10 min.
Exception: a frozen reading is shown on the display (“Hold” is
displayed).
Activating damping
If the readings fluctuate wildly, it is advisable to damp the readings.
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2
Click on Average of the measured values.
3
Enter a value between 2 and 20 measured values.
Changes to the measuring instrument settings in the app are
8.4.4
sectional area are covered (e.g. by lattice bars), this
The Settings tab is open.
1
Select Correction factor.
2
Enter the value for the correction factor and save.
8.4.5
The Settings tab is open.
1
Select Area.
8 Controls via testo Smart App
The window for Average of the measured values opens.
transferred directly to the measuring instrument. Synchronization with
the app is confirmed on the measuring instrument via “SYNC DONE”.
Setting the Correction Factor
If parts of the crosscan be corrected via the correction factor.
The correction factor indicates the proportion of free space in the crosssectional area.
For example: If 20% of the area is covered, the correction factor must
be set to 0.8 (80% free space).
The correction factor can only be set via the testo Smart App and not
directly on the measuring instrument.
The changes are transferred to the measuring instrument an d
synchronization with the app is confirmed on the measuring instrument
via “SYNC DONE”.
Setting the area
The cross-sectional area of the measuring point can be set both via the
testo Smart App and directly on the measuring instrum ent.
The display of this setting on the measuring instrument cannot be
hidden.
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2
Enter the value for the cross-sectional area and save.
8.5
8.6
1
2
Select Edit view.
3
Deselect the “check mark” to hide a measuring instrument’s
4
Click ▼ to select the unit of a measurement channel.
5
Click OK to confirm the settings.
8 Controls via testo Smart App
The changes are transferred to the measuring instrument an d
synchronization with the app is confirmed on the measuring instrument
via “SYNC DONE”.
Display of the readings
The available readings can be displayed in different views.
• Live view:
The readings transmitted by the measuring probes can be displayed in a live
view. Readings from all connected measuring probes are displayed.
• Graphic view:
Up to four different readings can be displayed in graph format. Readings to
be displayed can be selected by tapping on a reading above the diagram.
• Table view:
In the table view, all readings are displayed in sequence according to date
and time. Different readings from the individual measuring probes can be
displayed by pressing ◄ ►.
Adjusting the view
Click on .
An overview of all measurement channels and their measurement
parameters is displayed.
measurement channel.
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8.7
Export
Report
Delete
1
2
Select Memory.
3
Click on Select measurement.
Exporting readings
8 Controls via testo Smart App
Click on .
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8.7.1
1
2
Click on Start export.
3
Select the required sending/export options.
8.7.2
1
2
If required, activate the Create PDF with all readings button.
3
Click on Create.
4
Click on E-mail or Bluetooth®.
8 Controls via testo Smart App
Excel (CSV) Export
Click on .
A selection of export options is displayed.
A selection of sending/export options is dis play ed .
PDF Export
Click on Report.
For measurements, please be aware that the option Create PDF with
A selection window is displayed.
all readings is only possible up to 30 pages, due to the resulting file
size and number of pages. In the testo DataControl software, however,
PDF reports can be created for all measurements without any
restrictions.
A report containing all the information is created.
A selection window is displayed. The report can be sent via e-mail or
Bluetooth
®
.
The report will be sent.
c
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Page 32
8.8
If a new firmware is available for your
Perform Firmware update
Ensure that the option for Enable update for connected instruments
in Instrument Information i s alw ay s enabled.
measurement instrument, an update
notification is shown after connecting
the instrument with the testo Smart
App.
8 Controls via testo Smart App
Click Start Update to perform the
1
update.
If you click Later, the Update
notification is shown again during the
next connection.
During the instrument update the
Bluetooth connection must not be
disconnected.
The update needs to be performed
completely and takes approx. 5-10
minutes depending on the used
smartphone.
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Page 33
9
9.1
The instrument is switched off.
1
Open the battery compartment (on the back of the instrument) via the
2
Insert or replace batteries (3 x AA
3
Close the battery compartment.
9.2
1
If the housing of the instrument is dirty, clean it with a damp cloth.
Do not use any aggressive cleaning agents or solvents! Mild household
+ - +
9 Maintaining the product
After the update the measuring instrument is restarting.
The firmware can be checked in the instrument menu or via the app.
A restart of the testo Smart App is recommended after the instrument
update.
Maintaining the pr oduct
c
Inserting / changing batteries
WARNUNG
Serious risk of injury to the user and/or destruction of the instrument.
There is a risk of explosion if the batteries are replaced with ones that
are the wrong type.
- Only use non-rechargeable alkaline batteries.
snap lock.
alkaline batteries).
Observe the polarity!
When not in use for a long period: Take out the batteries.
Cleaning the instrument
cleaning agents and soap suds may be used.
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Page 34
10
• Adjustment conditions for flow probes:
Low flow velocities may result in greater measurement uncertainties
Measurement parameters
m/s
l/s
Accuracy
±(0.2 m/s + 1% of measuring value)
Resolution
0.1 m/s
Measuring range
0.6 to 40 m/s
Operating temperature
-10 to +50 °C (measuring instrument)
-10 to +70 °C (probe)
Storage temperature
-10 to +50 °C
Operating humidity
0 to 80 %RH / For indoor use only
IP class
IP20
Level of contamination
PD2
Max. operating altitude
≤ 2000 m above sea level
Nominal output
2 W @ 4,5 V DC
(included in the scope of delivery)
Battery life
>60 h
Dimensions
Measuring instrument: 171 x 60 x 28 mm
Cable: 1.5 m
Weight
323 g
10 Technical data for testo 416
Technical data for testo 416
Adjustment in free jet Ø 350 mm, reference pressure 1013 hPa,
based on testo reference Laser Doppler Anemometer (LDA).
•
during humidity and temperature measurement! The probe should
be switched on outside a duct under the following conditions:
Ambient temperature: 20°C
Feature Value
Flow: approx. 0 m/s.
Collapse the telescope after use and do not constrict with the cable.
Start with the telescopic links closest to the handle.
fpm
m³/h
cfm
Battery type 3 x 1.5 V AA alkaline battery
Probe: 329 x Ø16 mm
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11 Tips and assistance
11
11.1
display)
Instrument battery is
Replace instrument battery
• Auto Off function is
•
• Switch off Auto Off
•
Display responds
sluggishly
Ambient temperature is
very low
Increase ambient
temperature
Display: -----
Sensor error
Display: OOOOO
Permissible measuring
range has been exceeded
Keep within the permissible
measuring range
Display: UUUUU
Permissible measuring
range has been undershot
Keep within the permissible
measuring range
Display: BT Fail
Bluetooth connection
• Check Bluetooth
®
•
Display: Print Fail
Printout could not be
• Check Bluetooth
®
• Switch printer off and then
Display: Probe Fail
Probe damage
Display: OTA Fail
The update process "over
completed successfully.
Restart the measuring
Bluetooth® connection.
Display: APP Lost
Connection to the testo
locked for 3 s.
Restart the measuring
Bluetooth® connection.
Tips and assistance
Questions and answers
Question Possible cause Possible solution
is displayed
(top right on the
Instrument
switches itself off
almost spent
switched on
Remaining battery
capacity is insufficient
could not be established
performed successfully
function
Change the battery.
Please contact your dealer
or Customer Service.
connections.
Restart measuring
instrument, restart testo
Smart App.
connections, switch off
and then on again if
necessary.
on again.
Please contact your dealer
or Customer Service.
the air" of the measuring
instrument could not be
Smart App was
interrupted. Keys are
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instrument and testo Smart
App and check the
instrument and testo Smart
App and check the
Page 36
11 Tips and assistance
Bluetooth®/IRDA printer
0554 0621
11.2 Accessories and spare parts
Description Order no.
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