TESTO 550i Instruction Manual

testo 550i - digital manifold
Instruction manual
Contents
Contents
1
2
3
4
5
6
7
7.1
About this document ...........................................................................5
Safety and disposal..............................................................................5
Product-specific approvals .................................................................5
Product-specific information...............................................................6
Use.........................................................................................................6
Product description .............................................................................7
First steps .............................................................................................8
Inserting (rechargeable) batteries ....................................................................... 8
7.2
Switching the instrument on and off .................................................................... 8
7.2.1
Switching the instrument on .......................................................................................8
7.2.2
Switching the instrument off .......................................................................................8
7.3
LED status .......................................................................................................... 8
7.4
Bluetooth®........................................................................................................... 9
7.4.1
Compatible probes .....................................................................................................9
7.4.2
Establishing a connection ...........................................................................................9
7.4.3
Switching on/off..........................................................................................................9
8
Using the product...............................................................................11
8.1
Preparing for measurement .............................................................................. 11
8.1.1
Operating the valve positioners ................................................................................ 11
8.1.2
Measuring mode ......................................................................................................12
8.2
App – Bedienoberfläche ................................................................................... 12
8.3
Main menu........................................................................................................ 14
8.4
Measurement programs .................................................................................... 15
8.4.1
Basic view ................................................................................................................15
8.4.1.1
Graphic view ............................................................................................................................16
8.4.1.2
Table view ...............................................................................................................................17
8.4.2
Refrigeration ............................................................................................................17
8.4.3
Target superheat......................................................................................................21
8.4.4
Pressure leak testing................................................................................................23
8.4.5
Evacuation ...............................................................................................................25
8.5
Customer .......................................................................................................... 27
8.5.1
Creating and editing a customer ............................................................................... 27
8.5.2
Creating and editing measuring sites ........................................................................ 28
8.6
Memory ............................................................................................................ 29
8.6.1
Searching for and deleting measurement results ...................................................... 30
8.7
Sensors ............................................................................................................ 30
8.7.1
Information ...............................................................................................................31
8.7.2
Settings....................................................................................................................31
Contents
8.8
Settings ............................................................................................................ 32
8.8.1
Language ................................................................................................................ 32
8.8.2
Measurement settings ............................................................................................. 32
8.8.3
Company details ...................................................................................................... 33
8.8.4
Privacy settings ....................................................................................................... 33
8.9
Help and Information ........................................................................................ 34
8.9.1
Instrument information ............................................................................................. 34
8.9.2
Tutorial .................................................................................................................... 34
8.9.3
Exclusion of liability ................................................................................................. 34
8.10
testo DataControl archiving software ................................................................ 35
8.10.1
System requirements ............................................................................................... 35
8.10.1.1
Operating system .................................................................................................................... 35
8.10.1.2
PC ........................................................................................................................................... 35
8.10.2
Procedure................................................................................................................ 35
9
Maintenance ....................................................................................... 38
9.1
Calibration ........................................................................................................ 38
9.2
Cleaning the instrument .................................................................................... 38
9.3
Keeping connections clean ............................................................................... 38
9.4
Removing oil residues ...................................................................................... 38
9.5
Ensuring measuring accuracy........................................................................... 38
9.6
Changing batteries/rechargeable batteries ....................................................... 38
9.7
Cleaning the vacuum probe .............................................................................. 39
10
Technical data .................................................................................... 40
1 About this document
1 About this document
•
The instruction manual is an integral part of the instrument.
•
Keep this documentation on hand so that you can refer to it when necessary.
•
Please read this instruction manual 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.
Symbols and writing standards
Display
Explanation
Note: basic or further information
1
2
…

>
Menu
[OK]
Warning advice, risk level according to the signal word:
Warning! Serious physical injury may occur.
Caution! Minor physical injury or damage to the equipment may
occur.
>
Take the specified precautionary measures.
Action: several steps, the sequence must be followed
Result of an action
Requirement
Action
Elements of the instrument, the instrument display or the
program interface.
Control keys of the instrument or buttons of the program
interface.
2 Safety and disposal
Take the testo information document into account (accompanies the product).
3 Product-specific approvals
Please find the current country approvals in the attached Approval and
Certification document.
5
4 Product-specific information
4 Product-specific information
•
The measuring instrument being dropped or any other comparable
mechanical stress may cause breakage of the pipe pieces in the refrigerant
hoses. The valve positioners may also suffer damage, causing further
damage inside the measuring instrument that is not necessarily visible
externally. Therefore, always replace the refrigerant hoses with new ones
after the measuring instrument is dropped or after any comparable
mechanical stress. For your own safety, you should return the measuring
instrument to the Testo Customer Service for technical inspection.
•
Electrostatic charging may destroy the instrument. Integrate all the
components (system, manifold's valve block, refrigerant bottle, etc.) into the
potential bonding (earthing). Please see the safety instructions for the
system and the refrigerant used.
•
Refrigerant gases can harm the environment. Please note the applicable
environmental regulations.
5 Use
testo 550i is a fully digital, highly reliable app-based manifold for digitally adept
AC/R technicians. Equipped with a 2-way valve block, the testo 550i helps AC/R
technicians to save time with quick and easy measurements, results and digital
documentation. In addition, this compact and robust instrument offers unlimited
flexibility thanks to its compatibility with many different wireless probes.
6
6 Product description
6 Product description
1 Hinged suspension hook (on rear)
3 Sight glass for refrigerant flow
5 LED display
7 3 x hose bracket for refrigerant
hoses
2 Battery compartment and mini
USB connection in battery
compartment (on rear)
4 On/off button
6 2 x valve positioner
8 3 x connections 7/16" UNF, brass
Left/right: Low/high pressure for
refrigerant hoses with quick
release screw fitting; passage for
valve positioner lockable Centre:
e.g. for refrigerant bottles, with
cap Refrigerant hoses with quickrelease fitting; passage can be
closed with valve positioner.
7
7 First steps
7 First steps
Inserting (rechargeable) batteries
7.1
1 Unfold the suspension hook and open the battery compartment (clip
lock).
2 Insert the batteries (in scope of delivery) or rechargeable batteries (3 x
AAA/micro/R03) in the battery compartment. Observe the polarity!
3 Close the battery compartment.

After insertion of the batteries, the instrument switches on
automatically and goes into the settings menu.
When not in use for a long period: Take out the (rechargeable)
batteries.
7.2 Switching the instrument on and off
Switching the instrument on
7.2.1
1 Press the on/off button.

The LED indicator flashes. The instrument is on.
Switching the instrument off
7.2.2
1 Press the on/off switch >2 s.

7.3
The LED indicator turns off. The instrument is switched off.
LED status
LED status
Description
Lit up green
Instrument is connected to a mobile
device and has sufficient power.
Search for a Bluetooth® connection
begins.
Battery is weak or there is a
malfunction.
Flashing orange
Flashing red
8
7 First steps
7.4
Bluetooth®
The testo 550i features the option of connecting to the testo Smart App. The
App enables connection of other Bluetooth® probes needed for the
measurement.
Compatible probes
7.4.1
Order no.
Designation
0560 2115 02
testo 115i - clamp thermometer operated by
smartphone and testo Smart App
testo 805i - infrared thermometer operated by
smartphone and testo Smart App
testo 605i - thermohygrometer operated by smartphone
and testo Smart App
testo 405i - thermal anemometer operated by
smartphone and testo Smart App
testo 410i - vane anemometer operated by smartphone
and testo Smart App
testo 510i - differential pressure measuring instrument
operated by smartphone and testo Smart App
testo 549i - high-pressure measuring instrument
operated by smartphone and testo Smart App
testo 552i - vacuum Smart Probe and testo Smart App
testo 905i - temperature probe with smartphone
operation and testo Smart App
0560 1805
0560 2605 02
0560 1405
0560 1410
0560 1510
0560 2549 02
0564 2552
0560 1905
7.4.2
Establishing a connection
To establish a connection via Bluetooth®, you need a tablet or
smartphone with the testo Smart App installed on it.
You can get the App for iOS instruments in the App Store or for Android
instruments in the Play Store.
Compatibility:
Requires iOS 12.0 or newer/Android 6.0 or newer,
requires Bluetooth® 4.0.
7.4.3
Switching on/off
 testo 550i is switched on.

Bluetooth® is activated on the tablet or smartphone.
9
7 First steps
1

10
Open the App.
The LED indicator flashes green as soon as the testo 550i is
connected to the tablet or smartphone via Bluetooth®.
8 Using the product
8 Using the product
Preparing for measurement
8.1
Operating the valve positioners
8.1.1
WARNING
Risk of injury caused by refrigerant that is at high pressure, hot, cold, or
poisonous!
> Wear protective goggles and safety gloves.
> Before applying pressure to the measuring instrument: Always fasten the
measuring instrument on the suspension hook to prevent it from falling down
(danger of breakage)
> Before each measurement, check the refrigerant hoses are intact and
connected properly. Do not use any tools to connect the hoses; only tighten
hoses hand-tight (max. torque 5.0Nm/3.7ft*lb).
> Comply with the permissible measuring range (-1 to 60 bar/-14.7 to 870 psi).
Pay particular attention to this in systems with R744 refrigerant, since these
are frequently operated with higher pressures.
The digital manifold behaves like a conventional three-way manifold with regard
to the refrigerant path: The passages are opened by opening the valves. The
applied pressure is measured with the valves closed and the valves opened.
> Open the valve: Turn valve positioner counterclockwise.
> Close the valve: Turn valve positioner clockwise.
WARNING
Valve positioner tightened too tightly.
• Damage to the PTFE seal (1).
•
Mechanical deformation of the
valve piston (2) leading to the
PTFE seal (1) falling out.
Damage to the thread of the
threaded spindle (3) and the valve
screw (4).
Broken valve knob (5).
•
Only tighten the valve positioner
hand-tight. Do not use any tools to
tighten the valve positioners.
11
8 Using the product
8.1.2
Measuring mode
testo 550i automatically detects the pressure difference between the lowpressure 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. If “yes” is selected, the low pressure moves
from left to right and the high pressure moves from right to left. This mode is
especially suitable for air conditioners that cool and heat.
8.2
1
App – Bedienoberfläche
2
Open main menu
Display of the measurement period
3
Display of calculated measurement results
4
Reading for each probe
5
Can be controlled with different function keys
6
Instrument status bar
7
Configuration
8
Edit reading display
12
8 Using the product
13
8 Using the product
Further symbols on the user interface (without numbering)
One level back
Exit view
Share report
Search
Favorite
Delete
Further information
Display report
Multiple selection
8.3
Main menu
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.
Measure
Customer
Memory
Sensors
Settings
Help and Information
14
8 Using the product
Additional icons on the testo 550i:
One level back
Delete
Exit view
Further information
Share measurement data/reports
Display report
Search
Edit
Favorite
8.4
Measurement programs
The testo 550i has permanently installed measurement programs. These enable
the user to carry out convenient configuration and implementation of specific
measuring tasks.
The testo 550i offers the following Measurement programs:
Basic view
Volume flow – duct (irrelevant
for testo 550i)
Volume flow – outlet
(irrelevant for testo 550i)
Differential temperature (ΔT)
(irrelevant for testo 550i)
Differential pressure (ΔT)
(irrelevant for testo 550i)
Refrigeration
Target superheat
Cooling and heating output
(irrelevant for testo 550i)
Pressure leak test
Evacuation
8.4.1
Basic view
In the Basic view application menu, the current measuring values can be read,
recorded and saved. The Basic view is particularly suitable for fast,
uncomplicated measurements without the specific requirements of a standardcompliant measurement.
All Bluetooth® probes compatible with the testo Smart App are displayed in the
Basic view.
15
8 Using the product
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.
8.4.1.1
Graphic view
In the Graphic view, the values for a maximum 4 channels can be displayed
simultaneously in a chronological trend graph. All measured parameters can be
displayed in the Graphic view via the channel selection (click on one of the four
selection fields). Once a measurement parameter has been selected, the value
is updated automatically.
The Zoom touch function allows individual parts of the graphic to be viewed in
more detail or time progressions to be displayed compactly.
1
2
3
4
5
6
7
Open the main
menu
Change of display
Reading for selected
channel
Measurement
parameter and
measurement unit
Graphic with selected
channels and 4 Y-axes
Status bar
Open the
configuration menu
8 Selection of other
channels
9 Time axis
10 New/Start/Stop/Save
button
If multiple probes are connected, please refer to the color the probe is
associated with. Y axis may not align with other probe measurements.
16
8 Using the product
8.4.1.2
1
2
3
4
5
6
Table view
Open the main
menu
Change of display
Column with date and
time
Arrow keys to go
directly to the end of
the table
Status bar
Open the
configuration menu
7 Probe ID measurement unit
8 Measuring values
9 New/Start/Stop/Save
button
8.4.2
Refrigeration
The Refrigeration application is used to determine the following system
measuring values:
•
Low-pressure side: Evaporation pressure, refrigerant evaporation
temperature to/Ev (T evap.)
•
Evaporation pressure: Measured temperature toh/T1
•
Evaporation pressure: Superheating Δtoh/SH
•
High-pressure side: Condensation pressure, refrigerant condensation
temperature tc/Co (T condens.)
•
Condensation pressure: Measured temperature tcu/T2
•
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
be used.
17
8 Using the product
Before each measurement, check that the refrigerant hoses are in
perfect 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.
WARNING
The measuring instrument being dropped or any other comparable mechanical
stress may cause breakage of the pipe pieces in the refrigerant hoses. The
valve positioners may also suffer damage, causing further damage inside the
measuring instrument that is not necessarily visible externally!
> For your own safety, return the measuring instrument to the Testo Customer
Service for technical inspection.
> Therefore, always replace the refrigerant hoses with new ones after the
measuring instrument is dropped or after any comparable mechanical stress.
1
Click on Measure.
2 Click on Refrigeration.

The Refrigeration measurement menu opens.
3 Click on

18
.
Configuration menu opens.
8 Using the product
4 Make the required settings.
5 Click on Apply Configuration.
6 Set refrigerant.
19
8 Using the product
You have the option of setting up favorite 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).

The newly set refrigerant is displayed in the refrigerant list.
7 Click on Start.


The measurement starts.

Measured values can be saved or a new measurement can be started.
Values currently being measured are
displayed.
With zeotropic refrigerants, the evaporation temperature to/Ev is
displayed after complete evaporation/the condensation temperature
tc/Co is displayed after complete condensation.
The measured temperature must be assigned to the superheating or
subcooling side (toh <--> tcu). Dependent on this assignment, the display
will show toh/T1 resp. Δtoh/SH or tcu/T2 resp. Δtcu/SC, depending on the
selected display.
Reading and display illumination flash:
•
20
1 bar/14.5 psi before reaching critical refrigerant pressure
8 Using the product
•
When max. permissible pressure of 60 bar (870 psi is exceeded).
Target superheat
8.4.3
This feature allows the testo 550i 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. The two connected testo 605i Smart Probes determine
the ODDB and RAWB values. As a result, the target superheat appears in the
App.
If 605i Smart Probes are note connected, This can be manually set. It is
recommended to use 605i Smart Probes for accurate measurements.
The following are used for the measurement:
•
testo 115i (clamp thermometer)
•
testo 605i
Before each measurement, check that the refrigerant hoses are in
flawless condition.
Before each measurement, zero the pressure sensors.
WARNING
The measuring instrument being dropped or any other comparable mechanical
stress may cause breakage of the pipe pieces in the refrigerant hoses. The
valve positioners may also suffer damage, causing further damage inside the
measuring instrument that is not necessarily visible externally!
> For your own safety, return the measuring instrument to the Testo Customer
Service for technical inspection.
> Therefore, always replace the refrigerant hoses with new ones after the
measuring instrument is dropped or after any comparable mechanical stress.
1
Click on Measure.
2 Click on Target superheat.

The Target superheat measurement menu opens.
3 Click on

.
Configuration menu opens.
21
8 Using the product
4 Make the required settings.
5 Click on Apply Configuration.
6 Set refrigerant.
22
8 Using the product

The newly set refrigerant is displayed in the refrigerant list.
7 Click on Start.



8.4.4
The measurement starts.
Values currently being measured are displayed.
Measured values can be saved or a new measurement can be started.
Pressure leak testing
The temperature compensated tightness test can be used to check the leak
tightness of systems. For this purpose both the system pressure and the
ambient temperature are measured over a defined period of time.
For this purpose a temperature sensor to measure the ambient
temperature may be connected (recommendation: Deactivate the
surface compensation factor and use an NTC air probe or Bluetooth®
temperature Smart Probes) or Smart Probe for air temperature
measurement. This provides information about the temperaturecompensated differential pressure and the temperature at the
beginning/end of the test. Due to the temperature compensation, the
actual pressure drop is displayed as delta P. If no temperature sensor is
connected, you may also perform the pressure leak test without
temperature compensation.
Surface temperature probes (e.g. testo 115i) can also be used for the
temperature-compensated pressure leak testing, but must not be used
for measuring surface temperature. 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.
1
Click on Measure.
2 Click on Pressure leak test.

The Pressure leak test measurement menu opens.
3 Click on

.
Configuration menu opens.
23
8 Using the product
4 Make the required settings.
5 Click on Apply Configuration.
Start the measurement once pressure has been achieved. Once
pressure has been reached, press start to enable the Pressure leak
test. This will begin the test and the clock.
6 Click on Start.

24
The measurement starts.
8 Using the product

Values currently being measured are
displayed.

Measured values are saved. The values can be exported or a report
can be created.
8.4.5
Evacuation
With the Evacuation application, foreign gases and moisture can be removed
from the refrigeration circuit.
1
Click on Measure.
2 Click on Evacuation.

The Evacuation measurement menu opens.
3 Click on

.
Configuration menu opens.
To have an accurate reading in microns, the testo 552i Smart Probe is
recommended for this measurement. Please connect the smart probe
to the app.
25
8 Using the product
4 Make the required settings.
5 Click on Apply Configuration by setting the maximum decay target
and evacuation target.
7 Click on Start.

The measurement starts.
The graph will not begin until the refrigeration circuit reaches 1500
microns. The timer will run once start is pressed. Begin timing once
evacuation target is reached.
26
8 Using the product

Values currently being measured are
displayed.

Measured values can be saved or a new measurement can be started.
Customer
8.5
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.
8.5.1
Creating and editing a customer
1 Click on

.
Main menu opens
2
Click on Customer.

The Customer menu opens.
3 Click on + New customer.

A new customer can be created.
27
8 Using the product
It is recommended to create customers before measurements.
Customers can be added later within the memory of the testo Smart
App (section 8.6)
4 Store all relevant customer data.
5 Click on Save.

8.5.2
The new customer was saved.
Creating and editing measuring sites
1 Click on

.
Main menu opens
2
Click on Customer.

The Customer menu opens.
3 Click on + New customer.
4 Click on the right tab Measuring point.
28
8 Using the product
5 Click on + New measuring site.

A new measuring site can be created.
6 Store all relevant measuring site information.
7 Click on right tab Parameters.
8 Select further parameters.
For the duct, outlet or duct with k-factor measuring sites, further
parameter settings can be implemented.
9 Click on Save.

8.6
The new measuring site has been saved.
Memory
In the Memory menu, you can call up all the measurements stored with the
testo 550i, 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.
29
8 Using the product
Searching for and deleting measurement
results
8.6.1
In the Memory menu, all stored measurements are sorted by date and time.
 The Memory menu is open.
1 Click on

.
Search field with measurements opens.
2 Enter the customer name or measuring site or date/time in the search
field.
If a customer is not created before a measurement, user will be able to
create a customer and measuring site after the measurement is
complete. Select the measurement and enter customer details. Refer to
section 8.5.2.

The result is displayed.
Deleting
1 Click on

.
A check box is displayed in front of each measurement.
2 Click on the required measurement.

A tick is displayed in the respective box.
3 Click on

.
Information window is displayed.
4 Acknowledge the information.

8.7
Selected measurements were deleted.
Sensors
All sensors used with the App can be found in the
Sensors menu. There,
you can view general information about currently connected probes as well as
recently connected probes.
30
8 Using the product
8.7.1
Information
Information is stored for each probe.
 The App is connected to testo 550i.
1 Click on

.
Main menu opens.
2
Click on Sensors.

The Sensors menu opens.
3 Click on one of the displayed probes.

8.7.2
Information is displayed about the model, order number, serial number
and firmware version.
Settings
Settings can also be made for each probe.
 The probe is connected to the App.
31
8 Using the product
1 Click on

.
Main menu opens.
2
Click on Sensors.

The Sensors menu opens.
3 Click on one of the displayed probes.
4 Click on the Settings tab.
5 Click on one of the displayed probes.

Settings appear that can be changed if necessary.
Settings
8.8
8.8.1
Language
1
Click on Settings.

The Settings menu opens.
2 Click on Language.

A window with different languages opens.
3 Click on the required language.

8.8.2
The required language is set.
Measurement settings
1
Click on Settings.

The Settings menu opens.
2 Click on Measurement settings.

32
A window with different basic settings for measurement opens.
8 Using the product
3 Click on the required settings and change if necessary.

4
8.8.3
The required measurement settings are set.
Exit Measurement settings.
Company details
1
Click on Settings.

The Settings menu opens.
2 Click on Company details.

A window with company details opens.
3 Click on the required data and enter if necessary.

4
8.8.4
The required measurement settings are set.
Exit Company details.
Privacy settings
1
Click on Settings.

The Settings menu opens.
2 Click on Privacy settings.

A window with privacy settings opens.
3 Activate or deactivate the required settings.

The required settings are set.
4
Exit Privacy settings.
33
8 Using the product
Help and Information
8.9
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.
8.9.1
1

Instrument information
Click on Help and Information.
The Help and Information menu opens.
2 Click on Instrument information.

The current App version, Google Analytics instance ID, refrigerant
version and update are displayed for the connected instrument.
Automatic updates for instruments can be enabled or disabled.
> Use the slider to activate or deactivate Update for connected
instruments.
8.9.2
1

Tutorial
Click on Help and Information.
The Help and Information menu opens.
2 Click on Tutorial.

The tutorial shows you the most important steps prior to
commissioning.
8.9.3
Exclusion of liability
1
Click on Help and Information.

The Help and Information menu opens.
2 Click on Exclusion of liability.

34
The data protection information and licence usage information is
displayed.
8 Using the product
8.10 testo 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
•
Read out, evaluate and archive measurement data
•
Presenting readings in graphic form
•
Create professional measurement reports from the existing measurement
data
•
Conveniently add pictures and comments to measurement reports
•
Data import from and data export to the measuring instrument
8.10.1 System requirements
Administrator rights are required for installation.
8.10.1.1
Operating system
The software can be run on the following operating systems:
• Windows® 7
•
Windows® 8
•
Windows® 10
8.10.1.2
PC
The computer must meet the requirements of the operating system in each
case. The following requirements must also be met:
•
Interface USB 2 or higher
•
DualCore processor with minimum 1 GHz
•
Minimum 2 GB RAM
•
Minimum 5 GB available hard disk space
•
Screen with a resolution of at least 800 x 600 pixels
8.10.2 Procedure
 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.
1 Open testo Smart App on the smartphone or tablet.
35
8 Using the product
2 Open the testo DataControl archiving software on the PC.
3 Click on Select instrument.

An overview with available instruments opens.
4 Select instrument.

36
A safety notice is displayed.
8 Using the product
5 Click on Transfer data to DataControl and delete from instrument.

Data has been successfully transferred.
37
9 Maintenance
9 Maintenance
9.1
Calibration
testo 550i 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.
Please contact Testo for further information.
9.2
Cleaning the instrument
Do not use any aggressive cleaning agents or solvents! Mild household
cleaning agents and soap suds may be used.
> If the housing of the instrument is dirty, clean it with a damp cloth.
9.3
Keeping connections clean
> Keep screw connections clean and free of grease and other deposits;
clean with a damp cloth as required.
9.4
Removing oil residues
> Carefully blow out oil residues in the valve block using compressed
air.
9.5
Ensuring measuring accuracy
Testo Customer Service will be happy to help you as required.
> Check the instrument regularly for leaks. Keep to the permissible
pressure range!
> Calibrate the instrument regularly (recommendation: once a year).
9.6
Changing batteries/rechargeable
batteries
 The instrument is switched off.
38
9 Maintenance
1 Fold out the suspension hook, release the clip and remove the battery
compartment lid.
2 Remove the (rechargeable) batteries and insert new ones into the
battery compartment (3 x type AAA / Micro / R03). Observe the
polarity!
3 Attach and close the battery compartment lid (the clip must click into
place).
4 Switch the instrument on.
9.7
Cleaning the vacuum probe
Contaminants such as oil may impair the accuracy of the vacuum
sensor. Perform the following steps to clean the sensor.
ATTENTION
Carrying out cleaning with the probe switched on may result in damage to
the probe!
>
Switch off the vacuum probe!
ATTENTION
Damage to the sensor due to sharp objects!
>
Do not insert any sharp objects into the probe!
1 Switch off the vacuum probe.
2 Put a few drops of rubbing alcohol into the sensor opening.
3 Seal the opening by placing your finger on it and shake the vacuum
probe briefly.
4 Remove all the alcohol from the probe.
5 Repeat this process at least twice.
6 Leave the probe to dry for at least 1 hour.
To dry the sensor faster, you can connect the probe directly to a
vacuum pump and apply vacuum.
39
10 Technical data
10 Technical data
Feature
Value
Measurement parameters
Pressure: kPa/MPa/bar/psi
Temperature: °C/°F/K
Connections: 3
Valves: 2
Pressure: 2 x pressure sensor
1s
Measured value recorder
Measuring cycle
Interfaces
Measuring ranges
Overload
Resolution
Accuracy (nominal
temperature 22°C/71.6°F)
Measurable media
Ambient conditions
Housing
IP class
Power supply
Pressure ports: 3 x 7/16" UNF, 1 x 5/8" UNF
Via the App
HP/LP pressure measuring range: -100 to
6000 kPa/-0.1 to 6 Mpa/-1 to 60 bar (rel)/-14.7
to 870 psi
65 bar; 6500 kPa; 6.5 MPa; 940 psi
Resolution pressure: 0.01 bar/0.1
psi/1 kPa/0.001 Mpa
Pressure: ±0.5% of full scale value (±1 digit)
Measurable media: all media stored in the App.
Not measurable: ammonia (R717) and other
refrigerants which contain ammonia.
Storage temperature: -20 to +60 °C/-4 to 140
°F
Material: ABS/PA/TPE
Dimensions: approx. 77 x 109 x 60 mm
Weight: 592 g (without batteries)
IP54
Auto off
3 x AAA (rechargeable) batteries
Battery life: 130 h
10 minutes if activated, Bluetooth® off
Bluetooth range
Up to 490 ft (150 m)
Directives, standards and
tests
EU Directive: 2014/30/EU
You can find the EU declaration of
conformity under the product-specific
downloads on the Testo website:
www.testo.com.
40
10 Technical data
Available refrigerants
Feature
Value
No. of refrigerants
Selectable refrigerants in the
instrument
92
R114
R12
R123
R1233zd
R1234yf
R1234ze
R124
R125
R13
R134a
R22
R23
R290
R32
R401A
R401B
R402A
R402B
R404A
R407A
R11
FX80
I12A
R1150
R1270
R13B1
R14
R142B
R152a
R161
R170
R407C
R407F
R407H
R408A
R409A
R410A
R414B
R416A
R420A
R421A
R421B
R422B
R422C
R422D
R424A
R427A
R434A
R437A
R438A
R442A
R227
R236fa
R245fa
R401C
R406A
R407B
R407D
R41
R411A
R412A
R413A
R444B
R448A
R449A
R450A
R452A
R452B
R453a
R454A
R454B
R454C
R455A
R458A
R500
R502
R503
R507
R513A
R600a
R718 (H2O)
R744 (CO2)
R417A
R417B
R417C
R422A
R426A
R508A
R508B
R600
RIS89
SP22
Refrigerants will be updated as they are released. Check with the testo
Smart App for the most up-to-date refrigerants available.
41
Testo SE & Co. KGaA
Celsiusstraße 2
79822 Titisee-Neustadt
Germany
Telefon: +49 7653 681-0
E-Mail: [email protected]
Internet: www.testo.com
0970 5505 en-US 01
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