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testo 549 - testo 550 . Digital manifold

Instruction manual

2

1 Contents

3

Pos: 1 /TD/Überschr iften/1. Inhalt @ 0\mod_1177 587817070_79.doc x@ 124 3 @ 1@ 1

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.................................................................................9

4.1. Overview..........................................................................................9

5First steps ..............................................................................................11

6Using the product ..................................................................................13

6.1. Preparing for measurement...........................................................13

6.1.1. Switching the instrument on...........................................................................13

6.1.2. Connecting the temperature sensor...............................................................13

6.1.3. Switching Bluetooth® on and off (testo 550) ..................................................15

6.1.4. Selecting the measuring mode.......................................................................15

6.2. Performing the measurement ........................................................16

7Maintaining the product ........................................................................19

8Tips and assistance...............................................................................20

8.1. Questions and answers .................................................................20

8.2. Measurement parameters .............................................................20

8.3. Error reports ..................................................................................21

8.4. Accessories and spare parts .........................................................21

9EC declaration of Conformity ...............................................................22

10 Declarations ...........................................................................................24

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2 Safety and the environment

4

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2Safety and the environment

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2.1. About this document

Pos: 5 /TD/Sic herheit und Umwelt/Zu diese m Dokument/Verwendung/V erwendung (Standar d) @ 0\mod_1173775068554_ 79.docx @ 337 @ 5 @ 1

Use

> Please read this documentation through 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 products.

> 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.

Pos: 6 /TD/Sic herheit und Umwelt/Zu diese m Dokument/Symbole und Sc hreibkonventionen/S ymbole und Schreibkon v. [Standard_groß] 550-557 @ 16\mod_14 23129108668_79.doc x@ 207097 @ 5 @ 1

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.

Menu Elements of the instrument, the instrument

display or the program interface.

[OK] Control keys of the instrument or buttons of

the program interface.

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2 Safety and the environment

5

2.2. Ensure safety

Pos: 8 /TD/Sic herheit und Umwelt/Si cherheit gewähr leisten/Gerät bei Beschädigungen ni cht in Betrieb ne hmen @ 0\mod_1186985945 375_79.docx @ 2252 @ @ 1

> Do not operate the instrument if there are signs of damage at

the housing, mains unit or feed lines.

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> Do not perform contact measurements on non-insulated, live

parts.

Pos: 10 /TD/Sic herheit und Umwelt/Si cherheit gewährlei sten/Nicht mit Lö sungsmitteln la gern @ 0\mod_11756923751 79_79.docx @ 583 @ @ 1

> Do not store the product together with solvents. Do not use any

desiccants.

Pos: 11 /TD/Sic herheit und Umwelt/Sicher heit gewährleiste n/Nur beschriebene W artungsarbeiten durc hführen @ 0\mod_11756927 05195_79.docx @ 601 @ @ 1

> 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.

Pos: 12 /TD/Sic herheit und Umwelt/Sicher heit gewährleiste n/vor Ort gültige Sic herheitsbestimmungen be achten @ 0\mod_11869971 07328_79.docx @ 2298 @ @ 1

> Dangers may also arise from the systems being measured or

the measuring environment: Note the safety regulations valid in

your area when performing the measurements.

Pos: 13 /TD/Sic herheit und Umwelt/Sicher heit gewährleiste n/testo 550/Mechanisc he Belastung testo 550 @ 4\mod_12526561 21693_79.docx @ 49837 @ @ 1

> 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.

Pos: 14 /TD/Sic herheit und Umwelt/Sicher heit gewährleiste n/testo 550/Elektro statische Aufladun g testo 5502 @ 16\mod_14231292 35029_79.doc x@ 207132 @ @ 1

> Make sure that your refrigeration system is properly earthed, as

otherwise the measuring instrument might get damaged.

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2.3. Protecting the environment

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> Dispose of faulty rechargeable batteries/spent batteries in

accordance with the valid legal specifications.

Pos: 16.2 /TD/Si cherheit und Umwe lt/Umwelt schützen/ Produkt entsorgen @ 0\mod_1173780 307072_79.doc x@ 357 @ @ 1

> 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.

Pos: 17 /TD/Sic herheit und Umwelt/Umwel t schützen/testo 550/K ältemittel können sc haden testo 550 @ 4\mod_125 2656710421_79.doc x @ 49869 @ @ 1

> Refrigerant gases can harm the environment. Please note the

applicable environmental regulations.

3 Specifications

6

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3Specifications

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3.1. Use

Pos: 20 /TD/Leis tungsbeschreibung/V erwendung/testo 5 xx/testo 5502 @ 16\mod_14231 29284591_79.doc x@ 2071 67 @ @ 1

testo 549 and testo 550 are digital manifolds for maintenance and

service work on refrigeration systems and heat pumps. They may

only be used by qualified authorized personnel.

The functions of the testo 549 and testo 550 mean they can replace

mechanical manifolds, thermometers and pressure/temperature

charts. Pressures and temperatures can be applied, adapted,

tested and monitored.

testo 549 and testo 550 are compatible with most non-corrosive

refrigerants, water and glycol. testo 549 and testo 550 are not

compatible with refrigerants containing ammonia.

The instruments must not be used in explosive environments!

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3.2. Technical data

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Characteristic Values

Parameters Pressure: kPa / MPa / bar / psi

Temperature: °C/°F/K

Sensor Pressure: 2 x pressure sensor, temperature:

2 x NTC

Meas. cycle 0,5 s

Measurement

channels

Quantity: 4

Interfaces Pressure connections: 3 x 7/16" UNF

NTC measurement

Measuring ranges HP/LP pressure measuring range: -100 to

6000 kPa / -0.1 to 6 Mpa / -1 to 60 bar (rel)

/ -14.7 to 870 psi

Temperature measuring range: -50 to

+150 °C / -58 to 302°F

Vacuum measuring range (rel): -1 to

0 bar / -14.7 to 0 psi

Overload 65 bar, 6500 kPa, 6,5 Mpa, 940 psi

3 Specifications

7

Characteristic Values

Resolution Pressure resolution: 0.01 bar/0.1 psi/

1 kPa/0.001 MPa

Temperature resolution: 0.1 °C/0.1 °F

Accuracy (nominal

temperature

22 °C/71.6 °F)

Pressure: ±0,5 % of full scale (±1 digit)

Temperature (-40…150°C): ±0.5 °C (±1 digit)

/0,9°F (±1 Digit)

No. of refrigerants 60

Selectable

refrigerants

No refrigerant, R11, R12, R22, R123,

R1234ze, R125, R13B1, R134a, R14,

R142B, R152a, R161, R23, R227, R290,

R32, R401A, R401B, R401C, R402A,

R402B, R404A, R406A, R407A, R407B,

R407C, R407D, R407F, R408A, R409A,

R410A, R411A, R412A, R413A, R414B,

R416A, R417A, R420A, R421A, R421B,

R422A, R422B, R422C, R422D, R424A,

R426A, R427A, R434A, R437A, R438A,

R502, R503, R507, R508A, R508B, R600,

R600a, R718 (H2O), R744 (CO2) (only in

measuring range up to 60 bar), R1234yf

Measurable media Measurable media: All media that are stored

in the testo 549 and testo 550 Not

measurable: Ammonia (R717) and other

refrigerants which contain ammonia

Ambient conditions Operating temperature: -20 to 50 °C/

-4 to 122 °F

Storage temperature: -20 to 60 °C/

-4 to 140 °F

Housing Material: ABS/PA/TPU

Dimensions: 265 x 135 x 75 mm

Weight: approx. 1000 g (without batteries)

IP class 42

Power supply Current source: Rechargeable

batteries/batteries 4x 1.5 V, type

AA/mignon/LR6

Battery life: approx. 250h

(display light off, Bluetooth off)

Display Type: Illuminated LCDResponse time: 0.5 s

3 Specifications

8

Characteristic Values

Directives,

standards and tests

EC Directive: 2014/30/EC

Warranty Duration: 2 years

Warranty conditions: see website

www.testo.com/warranty

4 Product description

9

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4Product description

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4.1. Overview

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Display and control elements

1Mini-DIN probe socket for NTC temperature probe, with socket

cover

2Foldable suspension device (on rear)

3Display. Instrument status icons:

Icon Significance

Battery capacity

Bluetooth®, (see Switching Bluetooth® on and

off (testo 550), page 15)

//

Select measuring mode (see Selecting the

measuring mode, page 15)

4Battery compartment. It is not possible to charge rechargeable

batteries in the instrument!

4 Product description

10

5Control keys:

Key Function

[Set] Set units

[R, ►, ■] Select refrigerant/ Start/stop / Tightness

test

[Mode] Switching measuring mode

[Min/Max/Mean] Display min./max./mean values

[▲] Up key: Change display view

[P=0] Pressure zeroing

Esc Switches to the measurement/home view

[▼] Down key: Change display view

[/] Switching the instrument on/off

Switch the display illumination on/off.

6Sight glass for refrigerant flow

72 x valve positioner

83 x hose parkers for refrigerant hoses

93 x connections 7/16" UNF, brass

Left/right: Low pressure/high pressure, for refrigerant hoses

with quick connect fitting, passage can be locked via valve

positioner. Centre: for refrigerant bottles, for example, with

sealing cap.

10 On the back below the battery compartment cover, mini-USB

connection for firmware update.

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