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.
1 Safety and disposal • 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. •...
Certification document. 3 Description of the instrument 3.1 Use The testo 440 is used for measuring climate-related parameters. The testo 440 is particularly suitable for comfort level measurements for the workplace evaluation and disturbance measurements in and at air conditioning systems.
3 Description of the instrument 3.2 Overview of testo 440 Element Element 1 Settings Confirm input/selection 3 Menu Testo Universal Connector (TUC) for connection of cabled probes with corresponding plug 5 Type K thermocouple Back connection 7 Navigation Instrument ON/OFF...
3 Description of the instrument 3.3 Display overview Element Element 1 Check line 2 Probe identification 3 Measuring values 4 Header 5 Status bar Symbol Meaning Start measurement Stop measurement Carry out multi-point measurement Pause measurement Save measurement New measurement Zero pressure sensor GlobalTestSupply www.
3 Description of the instrument 3.4 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 DANGER Integrated magnet Danger to life for persons with pacemakers! - Keep a distance of at least 20 cm between your pacemaker and the measuring instrument.
3 Description of the instrument 3.5 Power supply Element Element 1 Mains connection via micro USB 2 Battery compartment - 3 x AA cable (must be connected to the batteries power source). No batteries are required for operation When connected to a power supply, the rechargeable batteries used will not be recharged.
3 Description of the instrument 3.6 Probe overview 3.6.1 Compatible cable probes 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 1026 Hot wire probe (Ø 7.5 mm) including temperature sensor, fixed cable 0635 1051 Hot wire probe (Ø...
3 Description of the instrument Order number Name 0636 9772 High-precision temperature-humidity probe, fixed cable 0636 9775 Robust temperature-humidity probe for temperatures up to +180 °C, fixed cable 0636 9732 Temperature-humidity probe, fixed cable 0635 0551 Lux probe 0632 1552 CO2 probe including temperature and humidity sensor, fixed cable 0632 1272...
Pipe wrap probe with NTC temperature sensor – for measurements on pipes (Ø 5-65 mm) 3.6.4 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...
4 Operation 4 Operation 4.1 Commissioning The testo 440 is supplied with inserted batteries. The batteries are secured by a battery safety strip. Open the battery compartment cover. Remove the battery safety strip. Close the battery compartment cover. The testo 440 is ready for use.
3 seconds. The testo 440 switches itself off. 4.3 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...
Press to exit the menu. 4.3.2 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 GlobalTestSupply www.
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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. Press to exit the menu.
4 Operation Press to exit the menu. Setting brightness You are in the Power Management menu. to select Brightness. to set the brightness. Press to exit the menu. 4.3.3 Setting the ambient conditions In the Ambient Conditions menu, you can configure the following parameters: •...
4 Operation You are in the Settings menu. to select the ISO/US. The following units are used depending on what has been selected: ISO unit US unit °C °F wb °C wb °C dp °C dp °F to select the required setting. Press to exit the menu.
4.3.7 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 are in the Settings menu.
RH and 75.3% RH; any deviations between the measuring value and the nominal value are minimised across the entire measuring range. The Testo calibration set provides a reference value to calculate the offset for a humidity adjustment. Humidity adjustment is possible with the following probes:...
4 Operation Press to exit the menu. After performance of a probe reset, the probe uses the calibration data set by the factory. 4.3.9 Resetting the instrument or probe to default settings You are in the Settings menu. to select General. Press on the navigation key.
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4 Operation Showing saved measurements This function can be used to retrieve saved measurement results. You are in the Memory menu [Memory]. Press on the navigation key. to select the required folder. Press on the navigation key. to select the required measurement. GlobalTestSupply www.
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4 Operation Press on the navigation key to display measurement results. Creating and deleting folders This function can be used to create and delete folders for your measurements. If you delete a folder, you will also delete the measurements it contains.
4 Operation You are in the Memory menu. You have selected a folder containing measurement data or selected a measurement file with to select the required folder. Press to select the required measurement. Press The drop-down menu is displayed. Press to delete the selected measurement data.
® the connected probe. The connection is automatically restored after printing has finished. 4.4.2 CSV export Connect the testo 440 to your computer using the micro USB cable. The AutoPlay window opens automatically on your screen. GlobalTestSupply www.
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In this case, please open Excel and the relevant measurement data document on the testo 440 from within Excel. A corresponding Excel wizard enables modification of the file format. You can add other details about the project to the CSV file.
4 Operation 4.5 Carrying out measurements 4.5.1 Connecting the cable probe with testo 440 Connect the testo 440 to the probe using the TUC slot. Remove the connector from the instrument to disconnect it. 4.5.2 Connecting the Bluetooth ® probe with testo...
4 Operation is displayed. is shown top left on the display, as soon as the probe and testo 440 are connected to each other. A connection to compatible Bluetooth ® probes is automatically searched for and established. Only one probe can be connected to the testo 440 by Bluetooth ®...
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View and long-term measurement. The configured units, on the other hand, are also taken up in the application menus. For the instrument model testo 440 dP, zeroing can also be undertaken in the Basic View. The accuracy specification applies immediately after zeroing of the sensor.
4 Operation 4.5.4 Selecting application menus The testo 440 has permanently installed application menus. These enable the user to carry out convenient configuration and implementation of specific measuring tasks. Available application menus are enabled as soon as a probe is connected.
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Vane probe (Ø 100 mm) including temperature sensor, fixed cable 0635 1052 Fume cupboard probe, fixed cable 0560 1405 testo 405i - thermal anemometer operated by smartphone 0560 1410 testo 410i - vane anemometer operated by smartphone A maximum of 1 Bluetooth probe and one cable probe can be ®...
Press to exit the menu. Carrying out the measurement A suitable probe is connected to the testo 440. Remove the protective cap from the probe head. For measurements in flows with a known direction, the arrow mark on the probe head must point in the direction of flow.
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Vane probe (Ø 100 mm) including temperature sensor, fixed cable 0635 1052 Fume cupboard probe, fixed cable 0560 1405 testo 405 i - thermal anemometer operated by smartphone A maximum of 1 Bluetooth probe and one cable probe can be ®...
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4 Operation Preparing for measurement Press to configure the measurement. You can set the following parameters: - Measuring Type: multi-point/timed avg. - Volume Flow Unit: m /h, cfm, l/s, m - Correction Factor: 1% to 200% In a multi-point measurement, a mean value is calculated from the individual measuring values.
Flow] The Pitot volume flow measurement is suitable for high velocities and flows with a high particle content. The application menu can only be accessed with testo 440 dP or used in combination with a testo 510i with Bluetooth ®...
4.5.8 K-factor volume flow application [K-Factor Volume Flow] The testo 440 can determine the volume flow by measuring the reference resistance and input of the K-factor. This allows the testo 440 to remain GlobalTestSupply www. .com Find Quality Products Online at:...
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The application menu can only be accessed with testo 440 dP or used in combination with a testo 510i with Bluetooth ®...
Press to exit the menu. Carrying out the measurement Position the testo 440 ready for measurement and stabilise. Carry out the measurement and save the measurement results. 4.5.9 Heating/cooling load application [Heating/Cooling Load] Use this application to calculate the heating/cooling load of a thermal installation.
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4 Operation A minimum of two probes are to be connected in each combination via Bluetooth ® and cable. Preparing for measurement Press to configure the measurement. You can set the following parameters: - SA Probe ID - RA Probe ID - Measuring Type: multi-point/timed avg.
0632 1271 CO probe with Bluetooth ® 0632 1272 CO probe, fixed cable Only one probe can be connected to the testo 440 by Bluetooth ® The display shows the CO content using the traffic light principle. Display Meaning Green...
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4 Operation Preparing for measurement Press to configure the measurement. You can set the following parameters - Boiler Working: Yes / No - Duration: 30s / 60s / 90s / 120s to select the required parameter and make settings. Press to exit the menu.
A minimum of 1 temperature probe (TE, NTC, 805i) and 1 humidity probe is to be connected via Bluetooth and cable. ® Only one probe can be connected to the testo 440 by Bluetooth ® The display shows the risk of mould using the traffic light system. Display...
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High risk Preparing for measurement Press to configure the measurement. If a testo 805i is used, the following settings can be made: - Emissivity Please refer to the testo 805i instruction manual for detailed information on emissivity. to select the required parameter and make settings.
0628 0152 Turbulence probe, fixed cable The probe requires a warm-up period of around 3 seconds after connection to the testo 440. Carry out the measurement after this. The display shows the draught rate using the traffic light system. Display...
4 Operation Carrying out the measurement A suitable probe is connected to the measuring instrument. Attach the probe to the tripod for the best measuring task result. Carry out the measurement and save the measuring values. 4.5.13 Performing long-term measurement application [Logger Mode] This application menu allows you to record measurement data over a user-...
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(from firmware version 1.0.4) is always saved automatically at the end of the configured measurement period. testo recommends using an external power supply for each micro USB in the case of particularly long measurements. It is then possible to record significantly longer measurement series.
Close the battery compartment cover. The testo 440 is ready for use. 5.2 Cleaning testo 440 Never use abrasive cleaning agents or solvents; instead use household detergent or soapy water.
Information on current firmware for testo 440 can be found at on the product page. You have downloaded the firmware file to your computer. Connect the testo 440 to your computer using the micro USB cable. The AutoPlay window opens automatically. Click on Open folder...
7 Tips and assistance Connected probe Name Battery life* (order no.) 0635 1052 Fume cupboard probe, fixed cable 9 hrs All information at 22 °C, 50% screen brightness, power saving mode ON, Auto-Off off. 7 Tips and assistance 7.1 Questions and answers 7.1.1 LED status Bluetooth ®...
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7 Tips and assistance Order number Name 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 ®...