TESTO 550s Instruction Manual
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TESTO 550s Instruction Manual

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  • Page 1 550s / testo 557s digital manifold Instruction manual...

  • Page 2: Table Of Contents

    Product-specific approvals ..............5 Product-specific information............... 6 Use ......................7 Product description ................8 Overview of the testo 550s ................. 8 Overview of the testo 557s ................. 9 Overview of main menu ..................10 Control keys ..................... 11 First steps ................... 11 Inserting (rechargeable) batteries ..............
  • Page 3 Contents Settings ......................36 Backlight duration ....................37 8.4.1 Backlight brightness....................38 8.4.2 Auto Off ........................39 8.4.3 Auto Tfac (Temperature compensation factor) ............40 8.4.4 Units ........................41 8.4.5 Language ........................ 42 8.4.6 Setup Wizard ......................43 8.4.7 Restore factory settings ................... 44 8.4.8 Device Info ......................
  • Page 4 Contents testo DataControl archiving software ..............66 System requirements ....................66 9.9.1 Operating system ........................66 9.9.1.1 PC ............................67 9.9.1.2 Procedure ........................ 67 9.9.2 Maintenance..................69 Calibration ......................69 10.1 Cleaning the instrument ..................69 10.2 Keeping connections clean ................69 10.3...

  • Page 5: About This Document

    Control keys of the instrument or buttons of the program interface. 2 Safety and disposal Please observe the Testo information document (enclosed with the product). 3 Product-specific approvals Please find the current country approvals in the Approvals and Certifications document.

  • Page 6: Product-Specific Information

    • Use with A2L refrigerants Testo measuring instruments (as of July 2020) can be used in compliance with the prescribed laws, standards, directives and safety regulations for refrigeration systems and refrigerants as well as regulations of the manufacturers of refrigerants of safety group A2L as per ISO 817.

  • Page 7: Use

    They may only be used by qualified authorized personnel. The functions of the instruments testo 550s and testo 557s mean they can replace mechanical manifolds, thermometers and pressure/temperature charts. Pressures and temperatures can be applied, adapted, tested and monitored.

  • Page 8: Product Description

    6 Product description 6 Product description Overview of the testo 550s Mini-DIN probe socket for NTC Foldable suspension device temperature probe, with socket (rear). cover Rear • Battery compartment • Mini USB port for firmware update 3 Display. Instrument status icons...

  • Page 9: Overview Of The Testo 557S

    Centre: e.g. for refrigerant bottles, with sealing cap, refrigerant hoses with quick- release screw fitting; passage can be closed via valve positioner. Overview of the testo 557s Mini-DIN probe socket for NTC Foldable suspension device temperature probe, with socket (rear). cover Rear •...

  • Page 10: Overview Of Main Menu

    Refrigeration Evacuation System Leak Test Measuring mode Target Superheat Compressor Test (DLT) Delta T Bluetooth ® Connection to the testo Smart App or Smart Probes Settings Backlight duration Backlight brightness Auto Off Auto Tfac (Temperature compensation factor) Units Language Setup Wizard...

  • Page 11: Control Keys

    7 First steps Control keys Symbol Meaning Open menu • Confirm input • Switch on the display illumination: • Press and hold the key for >2s Switch off the display illumination: • Press and hold the key for >2s Change/navigate the display screen. Switches to the measurement view •...

  • Page 12: Switching The Instrument On And Off

    Settings menu. Setup wizard When the testo 550s / testo 557s is started up for the first time and after the factory settings have been reset, the setup wizard is activated and guides you step-by-step through the following setup parameters.

  • Page 13: Using The Product

    8.1.1 With respect to the refrigerant path, the digital manifold behaves just like a conventional four-way manifold (only applies to the testo 557s): The passages are opened by opening the valves. The applied pressure is measured with the valves closed and the valves opened.

  • Page 14: Automatic Mode

    8 Using the product Automatic mode 8.1.2 The manifold automatically detects the pressure difference between the low- pressure and high-pressure sides. If the measured pressure on the low pressure side is 1 bar higher than on the high pressure side, a dialogue appears and the display can be changed accordingly.
  • Page 15 An NTC temperature probe (accessory) must be connected for measuring the pipe temperature and for automatic calculation of superheating and subcooling. These can be fixed cable temperature probes or Testo Smart Probes (e.g. testo 115i). Before each measurement, check that the refrigerant hoses are in flawless condition.
  • Page 16 The measurement menu is displayed. Connect the refrigerant hoses. Close the valve positioners. Connect the refrigerant hoses for low-pressure side (blue) and high- pressure side (red) to the measuring instrument. Connect the refrigerant hoses to the system. Connect testo 115i or fixed cable probes.
  • Page 17 In the refrigerant list (App), you can now choose the refrigerant as a favourite by clicking on the star. The new favourite refrigerant will now be synchronized to the testo 550s or testo 557s. Note: During synchronization, the refrigerant list/selection on the instrument must remain closed.
  • Page 18 1 bar/14.5 psi before reaching critical refrigerant pressure • When max. permissible pressure of 60 bar/870 psi is exceeded. • All values can be saved and sent in the app. The data can also be transferred between the app and the testo DataControl software.

  • Page 19: Evacuation

    The testo 552i is recommended for carrying out the measurement. The measurement is also possible without the testo 552i, with testo 550s/testo 557s. However, this is not advisable due to insufficient accuracy.
  • Page 20 8 Using the product [▲] / [▼] Evacuation [Menu/Enter] Press to select and press confirm. Configure Target Lines menu is displayed. Adjust the Target Line value Press the [▲] key and in the Evacuation Target field, select Manual Input. Press [Menu/Enter] to confirm.
  • Page 21 Confirm the entries in steps 4 and 5: [▼] [Menu/Enter] Press to select and press to confirm. A connection is established with available Bluetooth ® probes. testo 552i is switched on and connected automatically. Evacuation measurement menu is displayed.

  • Page 22: Pressure Leak Test

    Surface temperature probes (e.g. testo 115i) can also be used for the temperature-compensated leakage testing, but must not be used to measure surface temperature. They must be positioned as far as possible to measure the air temperature.
  • Page 23 8 Using the product The testo 550s or testo 557s manifold is used to carry out the measurement. The instrument is switched on and the measurement menu is  displayed. Hoses are connected.  Press [Menu/Enter]. [▲] / [▼] Measuring...
  • Page 24 Please note that only air probes are ideal for temperature- compensated leakage testing. testo 905i / testo 605i is switched on and automatically connected. Other temperature probes compatible with testo 550s / testo 557s can be connected.

  • Page 25: Target Superheat

    Target Superheat 8.2.4 This feature makes it possible to connect the testo 550s and testo 557s manifolds to two additional testo 605i Smart Probes in order to calculate the target superheat. This application can only be used for split air conditioning systems/heat pumps with a fixed expansion valve.
  • Page 26 The values can either be configured manually via recorded by the testo 605i via Smart Probe. When a Smart Probe selected, available testo 650i instruments are displayed for the connection. Adjust values for Outdoor Dry Bulb Temp. Press the [▲] key and in the Outdoor Dry Bulb Temp.
  • Page 27 8 Using the product [▲] / [▼] Press the key and in the Return Air Wet Bulb Temp. field, select Manual Input. Press [Menu/Enter] to confirm. The field is activated. Press [▲] / [▼] to set the value. [Menu/Enter] Press to confirm.
  • Page 28 Connect the refrigerant hoses for low-pressure side (blue) and high- pressure side (red) to the measuring instrument. Connect the refrigerant hoses to the system. Connect testo 115i/fixed cable probes. Set refrigerant. Press the key [▼] (Rxx) (refrigerant number according to ISO 817).

  • Page 29: Compressor Test (Dlt)

    Bluetooth. The testo 115i (clamp thermometer) or fixed cable probes are used to carry out the measurement. Before each measurement, check that the refrigerant hoses are in flawless condition.
  • Page 30 Connect the refrigerant hoses for low-pressure side (blue) and high- pressure side (red) to the measuring instrument. Connect the refrigerant hoses to the system. Connect 2 x testo 115i or 2 x fixed cable probes and third temperature probe to the compressor outlet. Set refrigerant.

  • Page 31: Delta T

    Temperature 1 and temperature 2 are measured. The difference is shown on the display as the delta temperature. Two testo 115i (clamp thermometers) or fixed cable probes are used to carry out the measurement. The instrument is switched on and the measurement menu is ...
  • Page 32 8 Using the product [▲] / [▼] Measuring Press to select Mode and press [Menu/Enter] confirm. Measuring Mode menu is displayed. Press [▲] / [▼] to select Delta T and press [Menu/Enter] to confirm. The measurement result is displayed. [Menu/Enter] Press to return to the main menu.

  • Page 33: Bluetooth

    550s / testo 557s have the option of establishing a Bluetooth ® connection with wireless probes as well as a connection to the testo Smart App at the same time. If the testo 550s or testo 557s is used with Smart Probes, they must be at least 20 cm apart.

  • Page 34: Establishing A Connection

    Bluetooth ® 4.0. Once the connection between the app and the Testo manifold has been successfully established, the app is in second screen mode. This is indicated by a yellow frame in the app. This means that all measurement data from the manifold is being mirrored on the app.

  • Page 35: Switching On

    8 Using the product Switching on 8.3.3.1  The Bluetooth menu is selected. 1 [Menu/Enter] In the On/Off switch icon, displayed. Enable Bluetooth®: Press [▼] activate the [Completed] button and press [Menu/Enter] to confirm. When the Bluetooth ® icon is shown on the display, Bluetooth is switched on.

  • Page 36: Manual Probe Selection

    8 Using the product Manual probe selection 8.3.3.3 If this menu is activated, it appears before a measurement. The Bluetooth ® menu is activated (in the On/Off switch icon,  displayed. Press [▼] to select Manual probe selection. Enable function: Via [Menu/Enter], set the switch to [ON]. An info window with the available probes appears before each measurement to be carried out.

  • Page 37: Backlight Duration

    8 Using the product Select Settings: Press [▼] and then [Menu/Enter] to confirm. Settings menu is displayed. Available settings: Backlight duration • Backlight brightness • Auto Off • Auto Tfac (Temperature compensation factor) • Units • Language • Setup Wizard •...

  • Page 38: Backlight Brightness

    8 Using the product [▲] / [▼] Press to select the backlight duration and press [Menu/Enter] to confirm. Press [ESC]: 1x main menu view, 2 x measurement menu view. Backlight brightness 8.4.2 Set the brightness for the display. Settings menu is activated. ...

  • Page 39: Auto Off

    8 Using the product Auto Off 8.4.3 You can manage the energy consumption for your instrument yourself. Settings menu is activated.  [▲] / [▼] [Auto OFF] Press to select [Menu/Enter] and press to confirm. Menu properties are displayed. Select using [▲] / [▼] On: The instrument automatically •...

  • Page 40: Auto Tfac (Temperature Compensation Factor)

    8 Using the product Auto Tfac (Temperature compensation 8.4.4 factor) A surface compensation factor has been set in the measuring instrument to reduce the measuring errors in the main field of applications. This reduces measuring errors when using surface temperature probes. Surface temperature probe An NTC temperature probe (accessory) must be connected for measuring the pipe temperature and for automatic calculation of...

  • Page 41: Units

    8 Using the product Units 8.4.5 Settings menu is activated.  Press [▲] / [▼] to select [Units] press [Menu/Enter] to confirm. Menu properties are displayed. Adjustable units Measurement Unit Description parameter Temperature °C, °F Set unit for temperature. psi, kPa, MPa, Pressure Set unit for pressure.

  • Page 42: Language

    8 Using the product Press [ESC]: 1 x Unitsmenu, 2 x main menu view, 3 x measurement menu view. Language 8.4.6 Settings menu is activated.  Press [▲] / [▼] to select [Language] and press [Menu/Enter] to confirm. Menu properties are displayed. Select language: Press [▲] / [▼] [Menu/Enter]...

  • Page 43: Setup Wizard

    8 Using the product Setup Wizard 8.4.7 Settings menu is activated.  Press [▲] / [▼] to select [Setup Wizard] and press [Menu/Enter] confirm. Language selection opens. [▲] / [▼] Press to select the language. The units for the respective country are set automatically. Barcode is displayed and the app can be downloaded from the respective app store.

  • Page 44: Restore Factory Settings

    8 Using the product Restore factory settings 8.4.8 The instrument is reset to the factory settings. Settings menu is activated.  Press [▲] / [▼] to select [Factory Reset] and press [Menu/Enter] confirm. Menu properties are displayed. Start [Factory Reset] : Press [▲] / [Do a factory reset]...

  • Page 45: Device Info

    8 Using the product Device Info 8.4.9 Settings menu is activated.  Press [▲] / [▼] to select [Device Info] and press [Menu/Enter] confirm. Versions Info menu is displayed. The following information can be viewed: Serial number • Firmware version •...

  • Page 46: Smart App

    9 Smart App 9 Smart App App – user interface Open main menu Display of the measurement period Display of calculated measurement results Reading for each probe Can be controlled with different function keys Instrument status bar Configuration Edit reading display...

  • Page 47: Main Menu

    9 Smart App Further symbols on the user interface (without numbering) One level back Exit view Share report Search Favourite Delete Further information Display report Multiple selection Main menu 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.

  • Page 48: Measurement Menu

    Search Edit Favourite Measurement menu The testo 550s / testo 557s has permanently installed measurement programs. These enable the user to carry out convenient configuration and implementation of specific measuring tasks. The testo 550s / testo 557s offers the following...

  • Page 49: Basic View

    All Bluetooth ® probes compatible with the testo Smart App are displayed in the Basic view angezeigt. In all application menus, apart from the volume flow measurement, there are three different screens for the measurement - Live (or also Basic view), Graphic and Table.

  • Page 50: Refrigeration

    • Condensation pressure: Subcooling Δtcu/SC • The testo 115i clamp thermometer is used for the measurement. An NTC temperature sensor (accessory) must be connected for measuring the pipe temperature and for automatic calculation of superheating and subcooling. Testo Smart Probes (e.g. testo 115i) can...
  • Page 51 9 Smart App Before each measurement, check that the refrigerant hoses are in flawless condition. Before each measurement, zero the pressure sensors. All connections must be pressureless (ambient pressure). Press the button [▲] (P=O) for 2 seconds to zero the sensors. Click on Measure.
  • Page 52 9 Smart App Set refrigerant. You have the option of setting up favourite refrigerants in the App. These then appear at the beginning of the refrigerant list. To do this, click on the asterisk next to the refrigerant in the refrigerant list (App).

  • Page 53: Target Superheat

    Target superheat 9.3.3 This feature allows the testo 550s / testo 557s manifold to calculate the target superheat in conjunction with the App and additional testo 605i Smart Probes. This application can only be used for split air conditioning systems/heat pumps with a fixed expansion valve.
  • Page 54 9 Smart App Make the required settings. Click on Apply Configuration. Set refrigerant.  The newly set refrigerant is displayed in the refrigerant list.

  • Page 55: System Leak Test

    They must be positioned as far as possible to measure the air temperature. The 550i, 550s or 557s manifold is used to perform the measurement. Click on Measure. Leakage test.
  • Page 56 9 Smart App Make the required settings. Apply Configuration. Click on Click on Start.  The measurement starts.  Values currently being measured are displayed.  Measured values are saved. The values can be exported or a report can be created.

  • Page 57: Evacuation

    9 Smart App Evacuation 9.3.5 With the Evacuation application, foreign gases and moisture can be removed from the refrigeration circuit. Click on Measure. Click on Evacuation.  Evacuation measurement menu opens. Click on  Configuration menu opens. Make the required settings. Apply Configuration.

  • Page 58: Customer

    9 Smart App  Values currently being measured are displayed.  Measured values can be saved or a new measurement can be started. Customer In the Customer menu, all customer and measuring site information can be created, edited and deleted. Fields marked with * are mandatory. Without any information in this field, no customers or measuring sites can be stored.

  • Page 59: Creating And Editing Measuring Sites

    9 Smart App + New Customer. Click on  A new customer can be created. Store all relevant customer data. Click on Save.  The new customer was saved. Creating and editing measuring sites 9.4.2 Click on  Main menu opens Click on Customer.
  • Page 60 9 Smart App + New Measuring Point. Click on  A new measuring site can be created. Store all relevant measuring site information. Click on right tab Parameters. Select further parameters. For the duct, outlet or duct with k-factor measuring sites, further parameter settings can be implemented.

  • Page 61: Memory

    Memory menu, you can call up all the measurements stored with the testo 550s / testo 557s, analyze them in detail and also create and save csv data and PDF reports. When clicking on a measurement, an overview of the measurement results is displayed.

  • Page 62: Sensors

    Information 9.6.1 Information is stored for each probe. The App is connected to testo testo 550s / testo 557s.  Click on  Main menu opens.

  • Page 63: Settings

    9 Smart App Settings 9.6.2 Settings can also be made for each probe. The probe is connected to the App.  Click on  Main menu opens. Click on Sensors.  The Sensors menu opens. Click on one of the displayed probes. Click on the Settings tab.

  • Page 64: Measurement Settings

    9 Smart App Measurement settings 9.7.2 Click on Settings.  The Settings menu opens. Click on Measurement settings.  A window with different basic settings for measurement opens. Click on the required settings and change if necessary.  The required measurement settings are set. Measurement settings.

  • Page 65: Help And Information

    The required settings are set. Exit Privacy settings. Help and Information Under Help and Information, you will find information about the testo 550i, and the tutorial can be called up and implemented. This also where legal information can be found. Instrument information 9.8.1...

  • Page 66: Exclusion Of Liability

    DataControl archiving software The free testo DataControl measurement data management and analysis software enhances the functionality of the testo Smart App measuring instrument with lots of useful functions: Manage and archive customer data and measuring site information •...

  • Page 67: Procedure

    Screen with a resolution of at least 800 x 600 pixels Procedure 9.9.2 To transfer the data from the App to testo DataControl, both  instruments must be in the same network. For example: A notebook with installed testo DataControl and a smartphone with installed testo Smart App are connected to the same WLAN.
  • Page 68 9 Smart App Select instrument.  A safety notice is displayed. Transfer data to DataControl and delete from instrument. Click on  Data has been successfully transferred.

  • Page 69: Maintenance

    10 Maintenance 10 Maintenance 10.1 Calibration The testo 550s / testo 557s is supplied with a factory calibration certificate as standard. Recalibration once every 12 months is recommended in many applications. This can be carried out by Testo Industrial Services (TIS) or other certified service providers.

  • Page 70: Changing Batteries/Rechargeable Batteries

    Value Measurement parameters Pressure: kPa/MPa/bar/psi Temperature: °C/°F/K Vacuum: hPa / mbar/ Torr / mTorr / inH micron / inHg / Pa Sensor testo 550s testo 557s Connections: 3 Connections: 4 Valves: 3 Valves: 4 Pressure: 2 x pressure sensor Temperature: 2 x NTC...
  • Page 71 22 °C/71.6 °F) Temperature (-50 to 150 °C): ±0.5 °C (±1 digit), ±0.9 °F (±1 digit), testo 115i temperature: ±2.3 °F (-4 to 185 °F) / ±1.3 °C (-20 to +85 °C), Vacuum: ±(10 microns + 10% of m.v.) (100 to...
  • Page 72 Display type: Illuminated LCD Response time: 0.5 s Directives, standards and EU Directive: 2014/30/EU tests You can find the EU declaration of conformity on the Testo website, www.testo.com, under the product- specific downloads. Available refrigerants Feature Value No. of refrigerants...

  • Page 73: Tips And Assistance

    12 Tips and assistance Feature Value FX80 R236fa R417B I12A R245fa R417C R1150 R401C R422A R1270 R406A R426A R13B1 R407B R508A R407D R508B R142B R600 R152a R411A RIS89 R161 R412A SP22 R170 R413A 12 Tips and assistance 12.1 Questions and answers Question Possible causes/solution Batteries are almost empty.

  • Page 74: Status View

    12.2.2 Status view Code Possible cause / solution E 30 An old version is still running on the testo 550s / testo 557s. Update the instrument. If the error persists, please contact our service department. E 31 testo 550s / testo 557s is still using the old version refrigerants. If you wish to use the new refrigerants, please update the refrigerant list again.
  • Page 76 Testo SE & Co. KGaA Celsiusstr. 2 79822 Titisee-Neustadt Germany Phone: +49 (0)7653 681-0 E-mail: info@testo.de www.testo.com 0970 5572 en 01...

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