TESTO 557 User manual

testo 557 · Digital manifold
Instruction manual
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1 Contents
3
1Contents
1Contents ...................................................................................................3
2Safety and the environment....................................................................4
2.1. About this document........................................................................4
2.2. Ensure safety...................................................................................4
2.3. Protecting the environment..............................................................5
3Product description.................................................................................5
3.1. Use ..................................................................................................5
3.2. Overview..........................................................................................6
4First steps ................................................................................................7
5Using the manifold ..................................................................................9
5.1. Preparing for measurement .............................................................9
5.1.1. Switching the instrument on.............................................................................9
5.1.2. Connecting the temperature sensor...............................................................11
5.1.3. Connecting the vacuum probe .......................................................................11
5.1.4. Switching Bluetooth® on and off ....................................................................11
5.1.5. Measuring mode ............................................................................................12
5.2. Performing the measurement ........................................................13
6Technical data........................................................................................16
6.1.1. Bluetooth Modul.............................................................................................16
6.1.2. General technical data ................................................................................... 17
7Maintaining the product ........................................................................19
8Tips and assistance...............................................................................21
8.1. Questions and answers .................................................................21
8.2. Measurement parameters .............................................................21
8.3. Error reports ..................................................................................22
8.4. Accessories and spare parts .........................................................22
9EC declaration of conformity................................................................23
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2 Safety and the environment
4
2Safety and the environment
2.1. About this document
Use
> Please read this documentation carefully and familiarize
yourself with the product before putting it to use. Pay particular
attention to the safety instructions and warning advice in order
to prevent injuries and damage to the product.
Symbols and writing standards
Representation Explanation
Warning advice, risk level according to the
signal word:
Warning! Serious physical injury may occur.
Caution! Slight physical injury or damage to
the equipment may occur.
> Implement the specified precautionary
measures.
Menu Elements of the instrument, the instrument
display or the program interface.
[OK] Control keys of the instrument or buttons of
the program interface.
2.2. Ensure safety
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or hoses.
> Do not store the product together with solvents. Do not use any
desiccants.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation.
> Dangers may also arise from the refrigeration systems being
measured or the measuring environment: Note the safety
regulations valid in your area when performing the
measurements.
> If the manifold falls or another comparable mechanical load
occurs, the pipe sections of the refrigerant hoses may break.
The valve stem shutoff may also be damaged, whereby further
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3 Product description
5
damage to the interior of the manifold may occur that cannot be
identified from the outside. The refrigerant hoses must therefore
be replaced with new, undamaged refrigerant hoses every time
the manifold falls or following any other comparable mechanical
load. Send the manifold to Testo Customer Service for a
technical check for your own safety.
> To prevent damage from ESD (electro-static discharge) or
transient voltage spikes make sure that your refrigeration
system is properly grounded, as otherwise the manifold might
get damaged.
2.3. Protecting the environment
> Dispose of spent batteries in accordance with the valid legal
specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
> Refrigerant gases can harm the environment. Please note the
applicable environmental regulations.
3Product description
3.1. Use
Testo 557 is a digital manifold for maintenance and service work on
refrigeration systems and heat pumps. It is intended for use by
qualified personnel only.
The function of the testo 557 is designed to replace analog
manifolds, thermometers and pressure/temperature charts.
Pressures and temperatures can be applied, adapted, tested and
monitored.
Testo 557 is compatible with most non-corrosive refrigerants, water
and glycol. Testo 557 is not compatible with refrigerants containing
ammonia.
The instruments must not be used in explosive environments!
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3 Product description
6
3.2. Overview
Display and control elements
1Front connection for external vacuum probe
2Mini-DIN probe socket for NTC temperature probe, with socket
cover
3Foldable hanging hook (on rear)
4Display. Instrument status icons:
Icon Meaning
Battery status
Bluetooth®
// Select measuring mode
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