TESTO 557 Manuale utente
testo 557 · Digital manifold
Instruction manual
2
1 Contents
3
1Contents
1Contents...................................................................................................3
2Safety and the environment....................................................................4
2.1. About this document........................................................................4
2.2. Ensure safety...................................................................................5
2.3. Protecting the environment..............................................................5
3Specifications ..........................................................................................6
3.1. Use..................................................................................................6
3.2. Technical data.................................................................................6
4Product description...............................................................................10
4.1. Overview........................................................................................10
5First steps ..............................................................................................12
6Using the manifold ................................................................................14
6.1. Preparing for measurement...........................................................14
6.1.1. Switching the instrument on...........................................................................14
6.1.2. Connecting the temperature sensor...............................................................14
6.1.3. Connecting the vacuum probe.......................................................................16
6.1.4. Switching Bluetooth® on and off....................................................................16
6.1.5. Choosing the measuring mode......................................................................17
6.2. Performing the measurement........................................................17
7Maintaining the product........................................................................21
8Tips and assistance...............................................................................23
8.1. Questions and answers.................................................................23
8.2. Measurement parameters .............................................................23
8.3. Error reports ..................................................................................24
8.4. Accessories and spare parts .........................................................25
9Declarations...........................................................................................25
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.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of 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.
Note: Basic or further information.
1. ...
2. ... Action: more steps, the sequence must be
followed.
> ... Action: a step or an optional step.
- ... Result of an action.
Menu Elements of the instrument, the instrument
display or the program interface.
[OK] Control keys of the instrument or buttons of
the program interface.
... | ...
Functions/paths within a menu.
“...”
Example entries
2 Safety and the environment
5
2.2. Ensure safety
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or hoses.
> Do not perform contact measurements on non-insulated, live
parts.
> 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. Follow the
prescribed steps exactly. Use only original spare parts
from Testo.
> 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 measuring instrument falls or another comparable
mechanical load occurs, the pipe sections of the refrigerant
hoses may break. The valve positioners may also be damaged,
whereby further damage to the interior of the measuring
instrument may occur that cannot be identified from the outside.
The refrigerant hoses must therefore be replaced with new,
undamaged refrigerant hoses every time the measuring
instrument falls or following any other comparable mechanical
load. Send the measuring instrument to Testo Customer
Service for a technical check for your own safety.
> Electrostatic charging can destroy the device. Integrate all the
components (system, manifold's valve block, refrigerant bottle
etc.) into the potential equalisation (earthing). Please see the
safety instructions for the system and the refrigerant used.
2.3. Protecting the environment
> Dispose of faulty rechargeable batteries/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.
3 Specifications
6
3Specifications
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3.1. Use
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The testo 557 is a digital manifold for maintenance and service
work on refrigeration systems and heat pumps. The device is only
to be used by qualified expert personnel.
With its functions the testo 557 replaces mechanical manifolds,
thermometers and pressure/temperature charts. Pressures and
temperatures can be applied, adapted, tested and monitored.
The testo 557 is compatible with most of the non-corrosive
refrigerants, water and glycol. The testo 557 is not compatible with
ammoniac refrigerants.
Then product must not be used in explosive environments!
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3.2. Technical data
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Feature Values
Measurement
parameters Pressure: psi/ kPa/MPa/bar
Temperature: °F/°C/K
Vacuum: micron / inHg / inH2O / hPa / mbar/
mTorr /Torr / Pa
Sensing element Pressure: 2 x pressure sensors
Temperature: 2 x NTC
Vacuum: via external probe
Measuring cycle 0,5s
Interfaces Pressure connections: 3 x 7/16" UNF,
1x 5/8" UNF
NTC measurement
External vacuum probe
Measurement
ranges Pressure measurement range
HP/LP: -14.7…870 psi / -100…6000 kPa
/ -0.1…6 MPa / -1…60 bar (rel)
Temperature measurement
range: -58…302 °F / -50…+150 °C
Measurement range vacuum: 0 ... 20.000
Mikron
Overload 940 psi, 65 bar, 6500 kPa, 6.5 MPa
3 Specifications
7
Feature Values
Resolution Resolution pressure: 0.1 psi / 0.01 bar /
1 kPa / 0.001 MPa
Resolution temperature: 0.1 °F / 0.1 °C /
0.1 K
Vacuum resolution: 1 Mikron (from 0 to 1000
Mikron) 10 Mikron (from 1000 to 2000
Mikron) 100 Mikron (from 2000 to 5000
Mikron) 500 Mikron (from 5000 to 10000
Mikron) 5000 Mikron (from 10000 to 20.000
Mikron)
Accuracy (nominal
temperature 71.6 °F
/ 22 °C)
Pressure: ±0.5% of final value (±1 digit)
Temperature (-40…302 °F/-40…+150 °C):
±0.9°F (±1 digit), ±0.5 °C (±1 digit)
Vacuum: ±(10 Mikron + 10% v. Mw.) (100 ...
1.000 Mikron)
No. of refrigerants 60
3 Specifications
8
Feature Values
Selectable
refrigerants in the
instrument
R114 R407C R444B
R12 R407F R448A
R123 R407H R449A
R1233zd R408A R450A
R1234yf R409A R452A
R1234ze R410A R452B
R124 R414B R453a
R125 R416A R454A
R13 R420A R454B
R134a R421A R454C
R22
R421B
R455A
R23 R422B R458A
R290 R422C R500
R32 R422D R502
R401A R424A R503
R401B R427A R507
R402A R434A R513A
R402B R437A R600a
R404A R438A R718 (H2O)
R407A R442A R744 (CO2)
Refrigerants that
can be updated via
APP
R11 R227 R417A
FX80 R236fa R417B
I12A R245fa R417C
R1150 R401C R422A
R1270 R406A R426A
R13B1 R407B R508A
R14 R407D R508B
R142B R41 R600
R152a R411A RIS89
R161 R412A SP22
R170 R413A
3 Specifications
9
Feature Values
Measurable media Measurable media: all media that is stored in
the testo 557. Not measurable: ammonia
(R717) and other refrigerants which contain
ammonia
Ambient conditions Operating temperature: -4…122°F
/ -20…50°C
-10 ... 50°C / 14 ... 122 °F (Vacuum)
Storage temperature: -4…140°F / -20…60°C
Humidity in area of use: 10… 90%rF
Housing Material: ABS / PA / TPE
Dimensions approx. 280 x 135 x 75 mm
Weight: approx. 1200 g (without batteries)
IP-class 42
Power supply Current source: Rechargeable batteries /
batteries 4 x 1.5V type AA / Mignon / LR6
Battery lifetime: approx. 250 h (Bluetooth off,
vacuum probe not connected)
Display Type: Illuminated LCD
Response time: 0.5 s
Directives,
standards and tests EU Directive: 2014/30/EU
You can find the EU declaration of
conformity on the Testo homepage
www.testo.com under the product-
specific downloads.
4 Product description
10
4Product description
4.1. Overview
Display and control elements
1 Front connection for external vacuum probe
2 Sensor socket Mini-DIN for NTC-temperature sensor, with
socket cover
3 Suspension attachment, foldable (backside).
4 Display. Instrument status icons:
Icon
Meaning
Battery status
Bluetooth®
/ /
Select measuring mode
5 Battery compartment. The rechargeable batteries cannot be
charged inside the instrument!
Altri manuali per 557
4
Indice
Altri manuali TESTO Collettore digitale
