TESTO 549 Instruction Manual
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TESTO 549 Instruction Manual

TESTO 549 Instruction Manual

Digital manifold
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testo 549 - testo 550 . Digital manifold
Instruction manual
Testo-Direct
info@Testo-Direct.ca
1.800.561.8187
www.
.ca

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Summary of Contents for TESTO 549

  • Page 1 549 - testo 550 . Digital manifold Instruction manual Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 2: Table Of Contents

    Preparing for measurement ............12 6.1.1. Switching the instrument on ................12 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 Maintaining the product ................ 18 Tips and assistance................

  • Page 3: Safety And The Environment

    > Do not operate the instrument if there are signs of damage at the housing, mains unit or feed lines. > Do not perform contact measurements on non-insulated, live parts. > Do not store the product together with solvents. Do not use any desiccants. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 4: Protecting The Environment

    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.

  • Page 5: Technical Data

    3 Specifications 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! 3.2. Technical data 3.2.1.

  • Page 6: General Technical Data

    Changes The FCC demands that the user be informed that any changes or modifications to the instrument that are not explicitly approved by testo AG may void the user's right to use this instrument. 3.2.2. General technical data Characteristic...
  • Page 7 ) (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...

  • Page 8: Product Description

    2 Foldable suspension device (on rear) 3 Display. 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) Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 9: First Steps

    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. Close the battery compartment. After inserting the batteries, the instrument switches on automatically and goes into the settings menu. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 10 The passages are opened by opening the valves. The adjacent pressure is measured with valves closed as well as with them open. > Open valve: Turn valve positioner anticlockwise. > Close valve: Turn valve positioner clockwise. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 11: Using The Product

    Switching the instrument on > Press Zeroing the pressure sensors Zero the pressure sensors before every measurement. ✓ There must be ambient pressure at all connections. >. > Press for 3 seconds key [P=0] and execute zeroing. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 12: Connecting The Temperature Sensor

    This reduces measuring errors when using surface temperature sensors. If the measuring instrument testo 550 is used in combination with insertion or air temperature sensors (accessories), this factor must be deactivated: 1.
  • Page 13 > 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 14: Switching Bluetooth® On And Off (Testo 550)

    Switching Bluetooth® on and off (testo 550) In order to be able to establish a connection via Bluetooth, you need a tablet or smartphone with the Testo app Refrigeration already installed on it. You can get the App for iOS instruments in the App Store or for Android instruments in the Play Store.

  • Page 15: Performing The Measurement

    The measured temperature must be assigned to the superheating or the subcooling side (t <--> t Depending on this assignment, t /T1 or Δt /SH or /T2 or Δt /SC is shown depending on the selected display. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 16 (leakage test view). Leakage test view is opened. ΔP is displayed. 2. Start the leakage test: Press [R, ►, ■]. 3. End the leakage test: Press [R, ►, ■]. Result is displayed. 4. Confirm message: Press [Mode]. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 17: 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 18: Tips And Assistance

    > Keep to the permitted measuring range. 8.2. Measurement parameters Name Description bar, °C psi, °F Δtoh Superheating, evaporation pressure Δtcu Subcooling, condensation pressure Refrigerant evaporation temperature Refrigerant condensation temperature Measured temperature, evaporation Measured temperature, condensation Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 19: Error Reports

    Possible causes/solution ---- is lit up instead of Sensor or cable defective measurement parameter > Please contact your dealer or display Testo Customer Service Display EEP FAIL Electronis defective > Please contact your dealer or Testo Customer Service 8.4. Accessories and spare parts Description Article no.

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550

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