Testo 552 - Digital Vacuum Gauge with Bluetooth Instruction manual
Content 1 Safety and waste disposal ................................................................... 5 1.1 About this document ..............................................................................5 1.2 Safety .....................................................................................................5 1.3 Waste disposal .......................................................................................6 2 General technical data ....................................................
5 Maintenance ...................................................................................... 24 5.1 Changing batteries .............................................................................. 24 Cleaning the instrument .............................................................................. 24 6 Tips and assistance ........................................................................... 26 6.1 Questions and answers ...................................................................
1 Safety and waste disposal 1 Safety and waste disposal 1.1 About this document • The instruction manual is an integral part of the instrument. • Keep this document throughout the entire operating life of the instrument. • Always use the complete original instruction manual. • Please read this instruction manual through carefully and familiarise yourself with the product before putting it to use.
1 Safety and waste disposal • 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. • In the event of contact with battery acid: rinse affected areas thoroughly with water, and if necessary consult a doctor. • Take batteries out of the instrument immediately if they are not functioning properly or if they show signs of overheating.
2 General technical data 2 General technical data Feature Values Vacuum measuring range Sensor overload (relative) Vacuum resolution 0 to 26.66 mbar / 0 to 20,000 microns 5 bar / 72 psi 1 micron (from 0 to 1,000 microns) 10 microns (from 1,000 to 2,000 microns) 100 microns (from 2,000 to 5,000 microns) 500 microns (from 5,000 to 10,000 microns) 5,000 microns (from 10,000 to 20,000 microns ±(10% of m.v.
2 General technical data 2.1 Bluetooth module The use of the wireless module is subject to the regulations and stipulations of the respective country of use, and the module may only be used in each case in countries for which a country certification has been granted. The user and every owner undertake to adhere to these regulations and prerequisites for use, and acknowledge that the re-sale, export, import, etc. in particular in, to or from countries without wireless permits, is their responsibility.
3 Description of the instrument 3 Description of the instrument 3.1 Use The testo 552 is a digital vacuum gauge for the precise measurement of extremely small pressures in the vacuum range. This allows you to monitor the evacuation (usually during commissioning) of refrigeration systems and heat pumps.
3 Description of the instrument 3.3 Displays overview Element 1 Icon [ Function ] 2 Icon [ ] 3 Icon [ ] 4 Temperature display 5 Slave Mode 6 Pressure display 10 Displays the remaining battery capacity. >75% >50% >25% <10% Bluetooth® appears when Bluetooth has been activated on the instrument. An alarm threshold is set.
3 Description of the instrument 3.4 Control keys overview Element Function 1 - Switches to the settings. - Switches between the set-up options. (This function is disabled, when connected to the App with BT) 2 3 4 Switches the display illumination on or off. Switches the instrument on or off. - Switches between the temperature displays. - Navigates in the Set menu. 5 + Switches Bluetooth® on or off (press and hold down for 3 sec.) 3.
3 Description of the instrument Option 2 Option 3 Option 4 12
3 Description of the instrument Option 5 13
4 Operation 4 Operation 4.1 Connecting Always use refrigerant hoses that are specifically intended for evacuations. 1 - Remove sealing caps. - Connect the testo 552 to the circuit. 4.2 Switching instrument on and off 1 - Press . The instrument switches on or off. The instrument displays oooooo when ambient pressure is applied to the connections. The display indicates the applied pressure value once the applied pressure is within the measuring range. (0 to 20,000 microns).
4 Operation 4.3 Switching background illumination on and off 1 - Switch the instrument on. - Press . The background illumination switches on or off. 4.4 Setting units and AutoOff The set-up menu must always be completely navigated through, even if only one parameter needs to be changed. 1 - Switch the instrument on. 2 - Press to change settings.
4 Operation 3 - Press to set the pressure unit required. 4 - Press . The unit is set. The display shows the temperature unit. 5 - Press to set the temperature unit required. 6 - Press . The temperature unit is set. The display shows the setting for the alarm threshold. Adjusting the alarm threshold causes an alarm to be triggered when the set value is exceeded.
4 Operation 7 - Press to set the alarm threshold. 8 - Press . The alarm threshold is set. The display shows the AutoOff setting. If AutoOff is activated, the instrument switches off after 15 minutes when ambient pressure is applied to the sensor. 9 - Press 10 - Press to switch AutoOff on or off. . All settings are stored. The display changes to the measuring mode. The instrument can now be used.
4 Operation 4.5 Displaying temperature values 1 - Press to change the temperature measurement parameter. The temperature measurement parameter switches between TH2O, Tamb and t. t is displayed in K for °C, and in °F for °F. 4.6 Establishing a Bluetooth® connection You need a tablet or smartphone with the Testo Smart Probes App already installed on it to be able to establish a Bluetooth connection. You can get the App for iOS instruments in the App Store or for Android instruments in the Play Store.
4 Operation Display Explanation is permanently displayed There is no Bluetooth® connection, or a potential connection is being searched for. There is a Bluetooth® connection is not displayed Bluetooth® is disabled. flashes 4.7 Overview of operating controls 1. Choice of applications. 2. Display of connected testo 552. 3. Switch between the views (list, graphic diagram, table). 4. Restarts the measuring value recording in graph and table format. 5. Export the readings. 6. Options menu. 4.
4 Operation 3 - Tap several times until the measurement view is displayed. The language has been changed. 4.8.2 Display Tutorial The Tutorial guides you through the first steps when operating the testo Smart Probes App. 1 - Tap -> Tutorial The Tutorial is displayed. In Tutorial, swipe to display the next page. 2 - Tap X to close the Tutorial. 4.8.3 Display testo website An internet connection is required to display the testo website. 1 - Tap -> About/Link -> Testo The page www.
4 Operation 4.9 List, graphic diagram and table view The available readings can be displayed in different ways in the various views. • List view Displays the readings transmitted by the testo 552 in the form of a list. Readings from all connected testo 552 are displayed here. • Graphic diagram view The graphical progression of up to four different readings can be displayed. Tap on a reading above the diagram to select the readings to be displayed.
4 Operation A selection of export options appears. 2 - Press Export PDF. A PDF is created and saved on your mobile terminal device (Android only) or sent via e-mail (iOS and Android). 3 - Press Done to exit the detailed view. 4.10.3 Exporting a graph 1 - Press . A selection of export options appears. 2 - Press Export Graph. An image file of the trend display is created. 3 - Press . A selection of sending/export options is displayed. 4 - Tap on the sending/export option you need 4.
4 Operation The testo 570 will only connect to the testo 552 once the Evacuation mode has been activated. When used as a probe, the testo 552 cannot be operated, all keys are deactivated. In order to be able to use the readings from the testo 552 via the testo 570 in the EasyKool software, you need EasyKool software version 4.0 or later. 1 - Connect the connecting cable to the MiniDIN probe socket of the testo 552. 2 - Connect the connecting cable to the front-end MiniDIN probe socket of the testo 570.
5 Maintenance 5 Maintenance 5.1 Changing batteries 1 - Switch the instrument off. 2 - Flip hook up. 3 - Open the battery compartment. 4 - Remove batteries. 5 - Insert new batteries, observing the indications inside the battery compartment. 6 - Close the battery compartment. 7 - Fold hook down. Cleaning the instrument Contaminants such as oil may impair the accuracy of the vacuum sensor. Complete the following steps to clean the sensor.
5 Maintenance - Shake the instrument briefly. 4 - Remove all the alcohol from the instrument. 5 - Repeat this process at least twice. 6 - Leave the instrument to dry for at least 1 hour. To dry the sensor faster, you can connect the probe directly to a vacuum pump and draw vacuum.
6 Tips and assistance 6 Tips and assistance 6.1 Questions and answers Question Possible cause / solution Readings are incorrect. - Check that the testo 552 is connected properly. - Connect the testo 552 directly to the vacuum pump in order to check the values. - Check that all hoses are leak-tight. - Clean the sensor as described in the Cleaning the instrument section. Instrument displays oooooo The applied pressure is outside the specified measuring range. (0 to 20,000 microns).
7 EC Declaration of Conformity 7 EC Declaration of Conformity 27
7 EC Declaration of Conformity The use of the wireless module is subject to the regulations and stipulations of the respective country of use, and the module may only be used in countries for which a country certification has been granted. The user and every owner has the obligation to adhere to these regulations and prerequisites for use, and acknowledges that the re-sale, export, import etc. in particular in countries without wireless permits, is his responsibility.
7 EC Declaration of Conformity designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
0970 5522 en 01
