• 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.
• 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 maintenanc e or serv i cing .
Intended use
The testo 545 is a lux meter. It is normally used to measure illuminance, e.g. in
workplaces. It is intended for indoor use only.
The product should not be used in the followi ng areas:
• In potentially explosive atmospheres.
• For diagnosti c mea sure ment s in the medi cal fiel d.
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.
The testo Smart App is installed on the smartphone and con nect ed
Settings and controls are implemented either on the instrument or via
2
Bluetooth® / ◄ key
3
Battery indicator
5
Selected unit
6 Print
7 Illumination
MENU/ENTER
Using the product
Controls on the measuring ins trument
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,
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 and confirm with MENU/ENTER.
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.
o YES: Carry out reset. The instrument is reset to the factory
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Page 16
7 Using the product
7.2
IMPORTANT
The instrument is switched on and is in the measurement view.
1
Place the measuring instrument into the position in which the
7.2.1
1
Press ◄ several times until the desired value is displayed.
The following are displayed in turn:
oCurrent measuring value
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.
7.2.3
1
Press MODE/END.
Measuring
Damage to sensor possible!
- Do not touch sensor!
The instrument returns to measurement view.
measurement is to be carried out.
Read the measured values on the display.
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: Maximum value
o Min: Minimum value
Resetting maximum/minimum values
The maximum/minimum values of all channels can be reset to the current
reading.
Display of connected measuring
instruments including reading s
Measurement configuration (the
and the application selected)
One level back
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
2
4
Start/stop
Configuration of the measuring
6
instrument
Additional symbols on the user interface of the app (not numbered)
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.
settings 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”.
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
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.
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.