TESTO 550 Instruction Manual
Digital manifold
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Summary of Contents for TESTO 550
- Page 1 550 · Digital manifold Instruction manual 1.800.561.8187 information@itm.com www. .com...
- Page 2 1.800.561.8187 information@itm.com www. .com...
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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.................8 4.1. Overview..................8 First steps ....................9 Using the product ..................11 6.1. -
Page 4: Safety And The Environment
2 Safety and the environment Safety and the environment 2.1. About this document > 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. -
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 applicable environmental regulations. -
Page 6: Specifications
3 Specifications Specifications 3.1. The testo 550 is a digital manifold for maintenance and servicing work at refrigeration systems and heat pumps. It must only be used by qualified authorized personnel. The testo 550 replaces mechanical manifolds, thermometers and pressure/temperature tables by means of its functions. Pressures and temperatures can be loaded, adjusted, tested and monitored. - Page 7 50 bar), R1234yf (Display: T8) Measurable media Measurable media: All media that are stored in the testo 550. Not measurable: Ammonia (R717) and other refrigerants which contain ammonia Ambient conditions Operating temperature: -10 to 50 °C/ 14 to 122 °F...
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Page 8: Product Description
4 Product description Product description 4.1. Overview Display and control elements 1 Mini-DIN probe socket for NTC temperature probe, with socket cover 2 Foldable suspension device (on rear) 3 D isplay. Instrument status icons: Icon Significance Battery capacity: >75 %/>50 %/>25 %/<10 % Select measuring mode (see) 4... -
Page 9: First Steps
5 First steps 5 C ontrol keys: Function [Set] Set units [R, Start/ Stop] 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 Light key: Switch display light on/off [▼] Down key: Change display view Switching the instrument on/off... - Page 10 5 First steps Switching the instrument on > Press ] Initialization phase: • All display segments are lit (length of time: 2 s). Measurement view is opened. Performing settings 1. P ress [Set]. The configuration menu is opened and the adjustable parameter flashes.
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Page 11: Using The Product
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: >... -
Page 12: Switching The Instrument On
> 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 13: Selecting The Measuring Mode
Normal functionality of the digital manifold Automatic If the automatic mode is activated, the mode testo 550 digital manifold automatically changes the display of the high and low pressure. This automatic change occurs when the pressure on the low-pressure side is 1 bar higher than the pressure on the high-pressure side. -
Page 14: Performing The Measurement
6 Using the product Display Mode Function display. This mode is especially suited to air conditioning systems which cool and heat. 6.2. Performing the measurement WARNING Risk of injury caused by refrigerant that is at high pressure, hot, cold, or poisonous! >... - Page 15 6 Using the product Reading and display illumination flash: • 1 bar before reaching the critical pressure of the refrigerant, • upon exceeding the max. permissible pressure of 50 bar. Key functions > [▲] or [▼]: Change the reading display. Possible display combinations: Evaporation pressure Condensation pressure...
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Page 16: 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 17 4. Switch the instrument on. Changing the valve or valve positioner handle WARNING Change of the valve positioners and valves by the customer is not permissible. > Send the measuring instrument to the Testo Customer Service. 1.800.561.8187 information@itm.com www. .com...
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Page 18: 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 off automatically. too low. > Change batteries. uuuu lights up instead of The permissible measuring range has the parameter display been undershot. -
Page 19: Error Reports
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- contact.. - Page 20 1.800.561.8187 information@itm.com www. .com 0970 5501 en 06 V01.16...
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