testo 570 · Digital manifold Instruction manual
1 Contents 1 Contents 1 Contents ...................................................................................................3 2 Safety and the environment ....................................................................4 2.1. About this document ........................................................................4 2.2. Ensure safety...................................................................................5 2.3. Protecting the environment .......................................
2 Safety and the environment 2 Safety and the environment 2.1. About this document 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.
2 Safety and the environment 2.2. Ensure safety > 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. > 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.
3 Specifications 3 Specifications 3.1. Use The testo 570 is a digital manifold for commissioning, maintenance and service work on refrigeration systems and heat pumps. It can be used for fault diagnose and online measurements on refrigeration systems and heat pumps. The testo 570 is only to be used by qualified expert personnel. With its functions the testo 570 replaces mechanical manifolds, thermometers and pressure/temperature charts.
3 Specifications Feature Values Measurement ranges Pressure measurement range HP/LP: -100…5000 kPa / -0.1…5 Mpa / -1…50 bar (rel) / -14.7…725 psi Temperature measurement range: -50…+150 °C / -58…302 °F Measurement range vacuum (rel): -1…0 bar / -14.7…0 psi Overload 52 bar, 5200 kPa, 5.2 Mpa, 754 psi Resolution Resolution pressure: 0.01 bar / 0.1 psi / 1 kPa / 0.001 Mpa Resolution temperature: 0.1 °C / 0.1 °F / 0.1 K Vacuum resolution: 1 hPa / 1 mbar / 0.5 Torr / 0.5 inH2O / 0.
3 Specifications Feature Values Ambient conditions Operating temperature: -20 to 50 °C / -4 to 122°F Storage temperature: -20...60 °C / -4...140 °F Humidity in area of use: 10 ... 90 %RH Housing Material: ABS / PA / TPE Dimensions approx. 280 x 135 x 75 mm Weight: approx. 1200 g (without batteries) IP-class 42 (position in use hanging down) Power supply Current source: 4 x 1.
4 Product description 4 Product description 4.1. Overview Display and control elements 1 2 3 Sensor socket Mini-DIN for NTC-temperature sensor, with socket cover. Suspension attachment, foldable (backside). Display Instrument status icons: Icon Meaning Battery capacity: >75% / >50% / >25% / <10% no battery indication Instrument is operated with power supply unit.
4 Product description 4 5 6 Battery compartment. Charging rechargeable batteries inside the instrument is not possible! Multi-function keys: The relevant function appears in the display. Control keys: Key Function [ ] Save or print measurement data. [ESC] Exit the menu option. [▲] Up-key: Change display view. [▼] Down-key: Change display view. [p=0] Zero the pressure sensor in the range +1 to -1.3 bar.
5 First steps Interfaces 1 2 3 Mini-DIN connection for optional temperature sensors, testo 552 and accessories IR-interface for testo protocol printer Mini-USB connection for power supply unit and connection to PC CAUTION Risk of injury from infrared beam! > Do not direct infrared beam at human eyes! 5 First steps Inserting batteries/rechargeable batteries 1. Unfold the suspension attachment and open the battery compartment (clip lock). 2.
5 First steps Switching the instrument on > Press [ ]. - Initializing phase: • All display segments light up (duration: 2s). - Measurement view is opened.
5 First steps 5 6 7 8 [Set] selectable via the left multi-function key Evaporation temperature / acc. to temperature sensor A / superheating Chosen refrigerant Battery status indication/rech. batt. charge indication Making settings 1. Press [Set]. - The configuration menu is opened. 2.
5 First steps Vacuum pressure mode: Select the pressure mode for the evacuation mode. See also Performing the measurement, page 19. Weight unit: Select the desired unit from the list. Measuring mode: Select normal mode, combi mode Display Mode Function none Normal mode Normal function of the digital manifold Auto Combi mode When combi mode is activated the digital manifold testo 570 automatically reverses the display of high and low pressure.
6 Using the product WARNING Tighten the valve actuator only hand-tight. Do not use any tools for tightening, this could damage the thread. WARNING Valve positioner tightened too tightly. • • • • Damage to the PTFE seal (1). Mechanical deformation of the valve piston (2) leading to the PTFE seal (1) falling out. Damage to the thread of the threaded spindle (3) and the valve screw (4). Broken valve knob (5). Tighten the valve positioner only hand-tight.
6 Using the product • • • • • • In combination with the testo 570, the testo 552 can be used as an external high-precision vacuum probe, if connected to the front of the testo 570 using the connection cable 0554 5520. The firmware version 1.09 or later must be installed for this. Before connecting both devices, the testo 552 must be switched on. The testo 570 will only connect to the testo 552 once Evacuation mode has been activated. The required pressure unit display must be set in the testo 570.
6 Using the product Accessories Clamp probe and oil pressure probe can only plugged to connection (1). Position the accessory as appropriate for the measurement task: 6.1.2.
6 Using the product ✓ The valve actuators are closed. 1. Connect the refrigerant hoses for low-pressure side (blue) and high-pressure side (red) to the measuring instrument. 2. Connect the refrigerant hoses to the system. WARNING The measuring instrument dropping down or any other comparable mechanical load can cause breakage of the pipe pieces in the refrigerant hoses.
6 Using the product 6.2. Performing the measurement WARNING Risk of injury caused by pressurized, hot, cold or toxic refrigerants! > Wear protective goggles and safety gloves. > Before applying pressure to the measuring instrument: Always fasten the measuring instrument on the suspension attachment to prevent it from falling down (danger of breakage) > Before each measurement check the refrigerant hoses for flawless condition and correct connection.
6 Using the product Key functions > [▲] or [▼]: Change the readings display.
6 Using the product compensated differential pressure and about the temperature at the beginning/end of the test as a result. If no temperature sensor is connected, you may also perform the tightness test without temperature compensation. ✓ The actions described in the chapter “Preparing for measurement” have been performed. 1. Press [Mode]. 2. Select [Tightness test]. - The tightness test view is opened. ∆P is displayed. 3. Start the tightness test: Press [Start]. 4. End the tightness test: Press [Stop].
6 Using the product Evacuation mode has been activated. • The required pressure unit display must be set in the testo 570. • In order to be able to use the readings from the testo 552 via the testo 570 in the EasyKool software, you need EasyKool software version 4.0 or later. • (See testo 552 instruction manual.) ✓ The actions described in the chapter “Preparing for measurement” have been performed. ✓ The desired units have been set. See Making settings, page 13. 1. Press [ ]. 2.
6 Using the product 4. Adjust the flashing number with [▲] and [▼] and press [◄] and [►] to go to the next number. 5. Confirm the input with [OK]. 6. Choose the memory location. 7. Press [Save]. 6.2.7. Pressure/Compressor ✓ Oil pressure probe connected to the upper Mini-DIN connection. 1. Press [Mode]. 2. Select [Pressure/Compressor]. - The measurement values for low pressure side and oil pressure (pext) are displayed. 6.2.8. Current ✓ Clamp probe connected to the upper Mini-DIN connection. 1.
6 Using the product Measurement period (hhh:mm) Minimum possible measuring cycle 000:00…099:59 2 seconds 100:00…240:59 10 seconds 241:00…999:59 30 seconds If the selected measurement duration is not a multiple of the set measuring cycle, it is reduced to the next possible measurement duration. In this case, the instrument displays the automatically adjusted measurement duration at the start of the measurement.
6 Using the product ✓ The desired measuring mode has been selected. 1. Press [ ]. 2. Select Serial measurement. 3. Setting the measuring cycle: Adjust the flashing number with [▲] and [▼] and press [◄] and [►] to go to the next number. Confirm the input with [OK]. 4. Set measurement period: Adjust the flashing number with [▲] and [▼] and press [◄] and [►] to go to the next number. Confirm the input with [OK]. 5.
7 Maintaining the product 3. 4. 5. - Navigate to the saved measuring protocol. Align IR interfaces testo 570 and testo printer. Select Print. The printout is generated. The saved measuring protocols can be viewed through the software Easy Kool. 7 Maintaining the product Cleaning the instrument > If the housing of the instrument is dirty, clean it with a damp cloth. Do not use any aggressive cleaning agents or solvents! Weak household cleaning agents and soap suds may be used.
7 Maintaining the product ✓ Instrument is switched off. 1. Fold out the suspension device, loosen the clip and remove the cover of the battery compartment. 2. Remove empty batteries/rechargeable batteries and insert new batteries/rechargeable batteries (4x 1.5 V, type AA, Mignon, LR6) in the battery compartment. Observe the polarity! 3. Set on and close cover of the battery compartment (clip must engage). 4. Switch the instrument on. 5.
8 Tips and assistance 8 Tips and assistance 8.1. Questions and answers Question Possible causes / solution Batteries are almost empty. > Change batteries. flashes 8.2. 28 The device switches itself off. Residual capacity of batteries too low. > Change batteries. uuuu lights instead of the measurement parameter display The permissible measuring range has been fallen short of. > Keep to the permitted measuring range.
8 Tips and assistance 8.3. Error reports Question Possible causes/solution ---- is lit up instead of measurement parameter display Sensor or cable defective > Please contact your dealer or Testo Customer Service Display EEP FAIL Eeprom defective > 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/servicecontact 8.4.
9 Appendix USB connecting cable Device-PC 0449 0047 Transport case for measuring instrument, probes and hoses 0516 5505 Connecting cable 0554 5520 Testo 552 0560 5520 For a complete list of all accessories and spare parts, please refer to the product catalogues and brochures or look up our website www.testo.com 9 Appendix 9.1. Basis of calculation COP Heat pump The heating power and the efficiency calculation.
9 Appendix The display of the testo 570 shows the following values: • COP • Heating power (kW) • Feed temperature secondary circuit (e.g. brine circuit) T1 (°C) • Return temperature secondary circuit (e.g.
9 Appendix 32
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