TESTO 557 Instruction Manual
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TESTO 557 Instruction Manual

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Summary of Contents for TESTO 557

  • Page 1 557 · Digital manifold Instruction manual...

  • Page 3: Table Of Contents

    1 Contents Contents Contents ....................3 Safety and the environment ..............4 2.1. About this document ................ 4 2.2. Ensure safety ................... 5 2.3. Protecting the environment .............. 5 Specifications ..................6 3.1. Use ....................6 3.2. Technical data ................. 6 Product description ................

  • Page 4: Safety And The Environment

    2 Safety and the environment Safety and the environment 2.1. About this document > 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.

  • Page 5: Ensure Safety

    > 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...

  • Page 6: Specifications

    Pos: 19 /TD/Überschriften/3.1 Verwendung @ 0\mod_1176211016437_79.docx @ 695 @ 2 @ 1 3.1. Pos: 20 /TD/Leistungsbeschreibung/Verwendung/testo 5xxtesto 557 @ 7\mod_1289392871218_79.docx @ 72935 @ @ 1 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.
  • Page 7 3 Specifications 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...
  • Page 8 3 Specifications Feature Values R114 R407C R444B Selectable refrigerants in the R407F R448A instrument R123 R407H R449A R1233zd R408A R450A R1234yf R409A R452A R1234ze R410A R452B R124 R414B R453a R125 R416A R454A R420A R454B R134a R421A R454C R421B R455A R422B R458A R290 R422C...
  • Page 9 3 Specifications 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...

  • Page 10: Product Description

    4 Product description Product 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®...
  • Page 11 4 Product description 6 Control keys: Function [Set] Set units [R, ►, ■] Select refrigerant / Start-Stop leak test [Mode] Switch between measuring modes [Min/Max/Mean] Display min, max, mean values [▲] Up-key: Scroll through menu. [P=0] Pressure zeroing Switches to the measurement/home view. [▼] Down-key: Scroll through menu.

  • Page 12: First Steps

    5 First steps First steps Inserting batteries/rechargeable batteries 1. Fold out the hanging hook and open the battery compartment by squeezing the clip lock. 2. Insert batteries (included in delivery) or rechargeable batteries (4x 1.5 V, type AA/Mignon/LR6) in the battery compartment. Observe the polarity! 3.
  • Page 13 5 First steps Representation Explanation AUTO OFF Automatic switch-off time, instrument switches off after 30 minutes if no temperature probe is connected and there is no pressure apart from ambient pressure. Temperature compensation factor, icon is shown on the display if the function is disabled.

  • Page 14: Using The Manifold

    6 Using the manifold Using the manifold 6.1. Preparing for measurement 6.1.1. Switching the instrument on > Press Zeroing the pressure sensors Zero the pressure sensors before every measurement. ✓ All connections must be pressureless (ambient pressure). > Press for 2 seconds key [P=0] and execute zeroing.
  • Page 15 > For your own safety you should return the measuring instrument to the Testo Service for technical inspection. > You should therefore always replace the refrigerant hoses with new ones after the measuring instrument has dropped down or after any comparable mechanical loading.

  • Page 16: Connecting The Vacuum Probe

    6 Using the manifold Pos: 30 /TD/Produkt verwenden/testo 557/Vakuumsonde anschließen @ 16\mod_1421057560179_79.docx @ 206127 @ 3 @ 1 6.1.3. Connecting the vacuum probe > Open the front cover of the connector and connect up the vacuum probe. The instrument automatically switches to the vacuum measurement mode.

  • Page 17: Choosing The Measuring Mode

    Normal function of the digital manifold Automatic When automatic mode is activated the mode digital manifold testo 557 automatically reverse the display of high and low pressure. This automatic reversal occurs when the pressure in the low pressure side is 1 bar higher than the pressure in the high pressure side.
  • Page 18 6 Using the manifold Measuring ✓ The actions described in the chapter “Preparing for measurement” have been performed. 1. Apply pressure to the measuring instrument. 2. Read the measuring values. With zeotropic refrigerants, the evaporation temperature to/Ev is displayed after the complete evaporation / the condensation temperature tc/Co is displayed after complete condensation.
  • Page 19 6 Using the manifold Changeable Changeable - Evaporation - Condensation Temperature (Ev) Temperature (Co) - Measured - Measured Temperature (T1) Temperature (T2) - Superheating (SH) - Subcooling (SC) Evaporation Condensation pressure pressure With both NTC temperature probes connected, Δt is also shown. >...
  • Page 20 3. To leave vacuum mode, remove the vacuum probe from the testo 557 or switch to the standard measurement view using the [Mode] button.

  • Page 21: Maintaining The Product

    > Carefully blow out oil residues in valve block using compressed air. Ensuring the measuring accuracy Testo Customer Service would be glad to further assist you if you so wish. > Check instrument regularly for leaks (recommended: annually). Keep to the permissible pressure range! >...
  • Page 22 CAUTION Carrying out cleaning with the probe connected may result in damage to the probe! > Remove the vacuum probe from the testo 557! CAUTION Damage to the sensor due to sharp objects! > Do not insert any sharp objects into the probe! 1.

  • Page 23: Tips And Assistance

    8 Tips and assistance Tips and assistance 8.1. Questions and answers Question Possible causes/solution Batteries are almost empty. flashes > Change batteries. The instrument switches Residual capacity of the batteries is too off automatically. low. > Change batteries. uuuu lights up instead of The permissible measuring range has the parameter display been undershot.

  • Page 24: Error Reports

    > Please contact your dealer or Testo Customer Service If you have any questions, please contact your dealer or Testo Customer Service. The contact details can be found on the back of this document or on the Internet at www.testo.com/service-...

  • Page 25: Accessories And Spare Parts

    For a complete list of all accessories and spare parts, please refer to the product catalogues and brochures or look up our website at: www.testo.com Declarations Pos: 49 /TD/Zulassungen/Zulassung 557 @ 19\mod_1468237195805_79.docx @ 235641 @ @ 1Pos: 49 /TD/Zulassungen/Zulassung 557 @ 19\mod_1468237195805_79.docx @ 235641 @ @ 1 Product Testo 557 Mat.-No.
  • Page 26 Product IC: 12231A-05631557 see IC Warnings Europe + EFTA The EU Declaration of Conformity can be found on the testo homepage www.testo.com u specific downloads. EU countries: Belgium (BE), Bulgaria (BG), Denmark (DK), Germany (DE), Estonia (EE), Finland (FI), France (FR), Greece...
  • Page 27 9 Declarations Country Comments Product FCC ID: 2ACVD056001557 FCC Warnings Bluetooth SIG Listing Feature Values Bluetooth Range < 20 m (free field) Bluetooth type L Series BLE module (08 May 2013) based on TI CC254X chip Qualified Design B016552 Bluetooth radio Class 3 class Bluetooth...
  • Page 28 9 Declarations off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Page 30 Sparta, N. J. 07871 Phone: +1 862 354 5001 Fax: +1 862 354 5020 Email: info@testo.com www.testo.com Headquarter Testo SE & Co. KGaA Testo-Straße 1 79853 Lenzkirch Germany Tel.: +49 7653 681-0 Fax: +49 7653 681-7699 Email: info@testo.de Internet: www.testo.com...

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