TESTO 440 User manual

testo 440 – Climate Measuring Instrument
Instruction manual

Contents
Contents
1Safety and disposal.............................................................................. 3
1.1 About this document..............................................................................3
1.2 Security ..................................................................................................3
1.3 Warning notices .....................................................................................4
1.4 Disposal .................................................................................................5
2Description of the instrument ............................................................... 6
2.1 Use.........................................................................................................6
2.2 Overview of testo 440 ............................................................................6
2.3 Display overview ....................................................................................7
2.4 Magnetic holder .....................................................................................8
2.5 Power supply .........................................................................................9
2.6 Probe overview ....................................................................................10
2.6.1 Compatible cable probe ........................................................10
2.6.2 Compatible Bluetooth®probe ...............................................11
2.6.3 Compatible NTC probe .........................................................11
2.6.4 Compatible Smart Probes .....................................................12
3Operation........................................................................................... 12
3.1 Commissioning ....................................................................................12
3.2 Switching the testo 440 on/off .............................................................13
3.3 Making basic settings ..........................................................................14
3.3.1 Establishing a Bluetooth®connection ...................................14
3.3.2 Setting power options ...........................................................15
3.3.3 Setting the ambient conditions..............................................16
3.3.4 Configuring the unit system...................................................17
3.3.5 Setting the date and time ......................................................17
3.3.6 Setting the language..............................................................18
3.3.7 Showing general device information .....................................18
3.3.8 Humidity adjustment..............................................................19
3.3.9 Resetting the instrument or probe to default settings ...........20
3.4 Managing saved measurement data....................................................20
3.4.1 Printing ..................................................................................23
3.4.2 CSV export ............................................................................24
3.5 Carrying out measurements.................................................................26

Contents
3.5.1 Connecting the cable probe with testo 440.......................... 26
3.5.2 Connecting the Bluetooth®probe with testo 440 ................. 26
3.5.3 Basic View ............................................................................ 27
3.5.4 Selecting application menus................................................. 28
3.5.5 Volume flow application [Volume Flow] ................................ 29
3.5.6 Funnel volume flow application [Funnel Volume Flow] ......... 31
3.5.7 Pitot volume flow application [Pitot Volume Flow] ................ 33
3.5.8 K-factor volume flow application [K-Factor Volume Flow].... 35
3.5.9 Heating/cooling load application [Heating/Cooling Load]..... 36
3.5.10 Mold indication application [Mold Indication] ....................... 38
3.5.11 Turbulence measurement application [Draft Rate]................ 40
3.5.12 Performing long-term measurement application [Logger
Mode].................................................................................... 41
4Maintenance ...................................................................................... 43
4.1 Battery replacement ............................................................................ 43
4.2 Cleaning testo 440............................................................................... 43
4.3 Calibration ........................................................................................... 43
4.4 Carrying out a firmware update ........................................................... 44
5Technical data ................................................................................... 45
6Tips and assistance ........................................................................... 47
6.1 Questions and answers ....................................................................... 47
6.1.1 LED status Bluetooth®probe................................................ 47
6.1.2 Hot wire measurement not possible ..................................... 47
6.2 Accessories and spare parts ............................................................... 47
7Authorisations and certification.......................................................... 49

1 Safety and disposal
3
1Safety and disposal
1.1 About this document
The instruction manual is an integral part of the instrument.
Pay particular attention to the safety instructions and warning advice in
order to prevent injury and damage to the product.
Keep this documentation on hand so that you can refer to it when
necessary.
Hand this instruction manual on to any subsequent users of the product.
1.2 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 on the housing,
power supply 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.
Maintenance work that is not described in this documentation must only be
carried out by trained service engineers.
Temperature information given on probes/sensors relates only to the
measuring range of the sensor technology. Do not expose handles and feed
lines to temperatures in excess of 70 °C (158 °F), unless they are expressly
authorized for use at higher temperatures.

1Safety and disposal
4
Do not carry out any contact measurements on uninsulated, live parts.
Transport and store the instrument only in the associated packaging, in
order to prevent any damage to the sensor.
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 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.
Do not use any leaky or damaged batteries.
Take the rechargeable battery out of the instrument immediately if it is not
functioning properly or if it shows signs of superheating. Rechargeable
battery may be hot!
In the event of contact with battery acid: rinse affected areas thoroughly
with water, and if necessary consult a doctor.
When not in use for a long period of time, take the rechargeable battery out
of the instrument to prevent exhaustive discharge.
1.3 Warning notices
Always pay attention to any information marked with the following warning
notices along with warning pictograms. Implement the specified precautionary
measures!
DANGER
Risk of death!
WARNING
Indicates possible serious injury.
CAUTION
Indicates possible minor injury.

1 Safety and disposal
5
CAUTION
Indicates possible damage to equipment.
1.4 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.

2Description of the instrument
6
2Description of the instrument
2.1 Use
The testo 440 is used for measuring climate-related parameters. The testo 440
is particularly suitable for comfort level measurements for remove the
workplace evaluation and disturbance measurements in and at air conditioning
systems.
The instrument is only to be used by qualified personnel and must not be used
in potentially explosive atmospheres!
2.2 Overview of testo 440
Element Element
1 Settings 2 Confirm input/selection
3 Menu 4 Testo Universal Connector (TUC)
for connection of cabled probes
with corresponding plug

2 Description of the instrument
7
5 Type K thermocouple connection 6 Back
7 Navigation 8 Instrument ON/OFF
9 Micro USB port for data
transfers or connection to
external power supply
10 Connections for differential
pressure measurements
(+ / - labelling on rear of
instrument, only testo 440 dP)
2.3 Display overview
Element Element
1 Zero pressure sensor 2 Probe identification
3 Measuring values 4 Measuring Application
5 Status bar
Symbol Meaning
Start measurement
Stop measurement
Carry out multi-point measurement

2Description of the instrument
8
Symbol Meaning
Pause measurement
Save measurement
New measurement
Zero pressure sensor
2.4 Magnetic holder
Two magnets are integrated in the testo 440 measuring instrument. These can
be used as a holder on magnetic surfaces.
Element Element
1 Integrated magnet 2 Battery compartment

2 Description of the instrument
9
DANGER
Integrated magnet
Danger: Life threatening to people with pacemakers!
- Keep a distance of at least 20 cm between your pacemaker and the
measuring instrument.
CAUTION
Integrated magnet
Damage to other devices!
- Keep a safe distance from devices that may be damaged by magnetism
(e.g. monitors, computers, credit cards, memory cards, etc.).
2.5 Power supply
Element Element
1 Power supply connection via
micro USB cable (must be
connected to the power source).
No batteries are required for
operation
2 Battery compartment - 3 x AA
batteries
When connected to a power supply, the rechargeable batteries used
will not be recharged.

2Description of the instrument
10
2.6 Probe overview
2.6.1 Compatible cable probe
Order number Name
0635 1032 Hot wire probe including temperature sensor, fixed
cable
0635 1572 Hot wire probe including temperature and humidity
sensor, fixed cable
0635 9572 Vane probe (Ø 16 mm) including temperature sensor,
fixed cable
0635 9372 High-precision vane probe (Ø 100 mm) including
temperature sensor, fixed cable
0635 9432 Vane probe (Ø 100 mm) including temperature sensor,
fixed cable
0636 9772 High-precision temperature-humidity probe, fixed
cable
0636 9775 Robust temperature-humidity probe for temperatures
up to +180 °C, fixed cable

2 Description of the instrument
11
Order number Name
0636 9732 Temperature-humidity probe, fixed cable
0635 0551 Lux probe
0632 1552 CO2 probe including temperature and humidity
sensor, fixed cable
0632 1272 CO probe, fixed cable
0628 0152 Turbulence probe, fixed cable
0635 9532 Vane probe (Ø 16 mm) fixed cable
0635 1052 Fume cupboard probe, fixed cable
2.6.2 Compatible Bluetooth®probe
Order number Name
0635 1571 Hot wire probe with Bluetooth®, including temperature
and humidity sensor
0635 9571 Vane probe (Ø 16 mm) with Bluetooth®, including
temperature sensor
0635 9431 Vane probe (Ø 100 mm) with Bluetooth®, including
temperature sensor
0636 9771 High-precision temperature-humidity probe with
Bluetooth®
0636 9731 Temperature-humidity probe with Bluetooth®
0632 1551 CO2 probe with Bluetooth®, including temperature and
humidity sensor
0632 1271 CO probe with Bluetooth®
2.6.3 Compatible NTC probe
Order number Name
0615 1212 Waterproof immersion/penetration probe – with NTC
temperature sensor
0615 1712 Robust air probe – with NTC temperature sensor
0615 4611 Temperature probe with Velcro and NTC temperature
sensor
0615 5505 Clamp probe with NTC temperature sensor – for
measurements on pipes (Ø 6-35 mm)
0615 5605 Pipe wrap probe with NTC temperature sensor – for
measurements on pipes (Ø 5-65 mm)

3Operation
12
2.6.4 Compatible Smart Probes
Order number Name
0560 1115 testo 115i - clamp thermometer operated by
smartphone
0560 1805 testo 805i - infrared thermometer operated by
smartphone
0560 1605 testo 605i - thermohygrometer operated by
smartphone
0560 1405 testo 405i - thermal anemometer operated by
smartphone
0560 1410 testo 410i - vane anemometer operated by smartphone
0560 1510 testo 510i - differential pressure measuring instrument
operated by smartphone
0560 1549 testo 549i - high-pressure measuring instrument
operated by smartphone
3Operation
3.1 Commissioning
The testo 440 is supplied with inserted batteries. The batteries are
secured by a battery safety strip.
1 Open the battery compartment cover.
2 Remove the battery safety strip.
3 Close the battery compartment cover.

The testo 440 is ready for use.

3 Operation
13
3.2 Switching the testo 440 on/off
Initial activation
For initial commissioning or after a factory reset, the Initial Operation
menu is opened automatically. In normal mode, the last menu used is
displayed after switching it on.
1 Press .

The Initial Operation menu is displayed.
2 Make the following settings in sequence:
- Language [Language]
Date (year/month/day) and time (format, time) [Date/Time]
- Unit system (ISO/US) [Units]

The basic settings have been set. They can be adjusted any time in
Settings.
Switching on
1 Press .

The last active menu when the instrument was switched off is
displayed.
Switching off

3Operation
14
1 Press and hold for at least 3 seconds.

The testo 440 switches itself off.
3.3 Making basic settings
Use the menu key to go to the testo 440 Settings menu. The following settings
are available in this menu:
Menu item Function/Settings
Basic View Show current measuring values
Select Application Select required application for the
measurement
Memory Show and manage saved measurements
Settings Making basic settings:
- Bluetooth
- Power Management Ambient Conditions
- Units
- Date/time
- Languages
- General (instrument and probe status,
reset)
3.3.1 Establishing a Bluetooth®connection

testo 440 is switched on.
1 Press and at the same time for at least 3 seconds.

Bluetooth®is activated or deactivated and either appears or
disappears from the display.
or

You need to go to menu screen first and then select Settings.
1 Use to select Bluetooth.

3 Operation
15
2 Use to enable Bluetooth.

Bluetooth®is activated or deactivated and either appears or
disappears from the display.
3 Press or to exit the menu.
3.3.2 Setting power options
You can manage the energy consumption for your testo 440. The following
functions are available for this purpose:
Auto Off: testo 440 switches off automatically after 5 minutes of inactivity
Power Saving: the screen brightness is reduced to 10% after a minute; the
set brightness is restored by pressing any button
Brightness: setting the screen brightness from 10% to 100%

You need to go to menu screen first and then select Settings.
1 Use to select Power Management.
2 Press or on the navigation key.
3 Use to select the required setting and make changes.
If the Auto Off function is enabled, the testo 440 automatically switches
itself off after 5 minutes of inactivity.
If the testo 440 is in logger mode, the Auto Off function is automatically
deactivated during an active measurement.
4 Press or to exit the menu.
Setting Auto Off

You are in the Power Management menu.
1 Use to select Auto Off.

3Operation
16
2 Use to switch the On or Off function on or off.
3 Press or to exit the menu.
Setting power saving

You are in the Power Management menu.
1 Use to select Power Saving.
2 Use to switch the On or Off function on or off.
3 Press or to exit the menu.
Setting brightness

You are in the Power Management menu.
1 Use to select Brightness.
2 Use to set the brightness.
3 Press or to exit the menu.
3.3.3 Setting the ambient conditions
In the Ambient Conditions menu, you can configure the following parameters:
Ambient Pressure
Pressure unit: Pa/mbar/hPa/mmH2O/inH2O/Torr/inHg/kPa/psi
Ambient temperature
Unit of temperature: °C/°F

You need to go to menu screen first and then select Settings.
1 Use to select Ambient Conditions.
2 Press or on the navigation key.

3 Operation
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3 Use to select the parameters to be modified.
4 Use to configure the parameters to be modified.
5 Press or to exit the menu.
3.3.4 Configuring the unit system
In the Units menu, you can switch between the European ISO and American
US unit system.

You need to go to menu screen first and then select Settings.
1 Use to select the ISO/US.
The following units are used depending on what has been selected:
ISO unit US unit
m/s fpm
m3/h cfm
°C °F
wb °C wb °C
dp °C dp °F
2 Use to select the required setting.
3 Press or to exit the menu.
When the unit system is changed, the units specified in the Basic View
are overwritten.
3.3.5 Setting the date and time
You can set the date and time in the Date/Time menu. You can set the time in
the formats 24 h, PM and AM.

You need to go to menu screen first and then select Settings.

3Operation
18
1 Use to select the Date/Time.
2 Press or on the navigation key.
3 Use to select the required settings.
4 Press or to exit the menu.
3.3.6 Setting the language

You need to go to menu screen first and then select Settings.
4 Use to select Language.
5 Press or on the navigation key.
6 Use to select the required Language.
7 Confirm by clicking .

Exit from the menu is automatic and the language is applied.
When the unit system is changed, the units specified in the Basic View
are overwritten.
3.3.7 Showing general device information
Under the General menu item, you will find all of the information about the
testo 440 and connected probes. You can also reset the instrument to default
settings.

You need to go to menu screen first and then select Settings.
1 Use to select General.
2 Press or on the navigation key.
The following information can be viewed: