Table of Contents
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Table of Contents
Summary of Contents for DD Compound Vac Checker
- Page 1 Vac Checkerâ Digital Vacuum Gauge Instruction manual...
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Page 2: Table Of Contents
Content Content 1 Safety and waste disposal ................3 1.1 About this document ................3 1.2 Safety ....................3 1.3 Waste disposal ..................4 2 Technical data ....................5 3 Description of the instrument ..............7 3.1 Use ......................7 3.2 Instrument overview ................ -
Page 3: Safety And Waste Disposal
1 Safety and waste disposal 1 Safety and waste disposal 1.1 About this document The instruction manual is an integral part of the instrument. · Keep this document throughout the entire operating life of the instrument. · Always use the complete original instruction manual. ·... -
Page 4: Waste Disposal
1 Safety and waste disposal Batteries Improper use of batteries may cause the batteries to be destroyed, or lead to · injury due to current surges, fire or escaping chemicals. Only use the batteries supplied in accordance with the instructions in the ·... -
Page 5: Technical Data
2 Technical data 2 Technical data Feature Values Absolute pressure sensor max. 6 bar (87 psi) (absolute) ATTENTION Pressure exceeded. Destruction of the absolute pressure sensor! - Do not exceed the maximum value. Vacuum measuring range 1100 - 0 mbar / 825080 - 0 micron Sensor overload (relative) 5 bar / 72 psi Vacuum resolution... - Page 6 2 Technical data Setting values alarm treshold Unit Setting range Resolution mbar / hPa 0 - 7,5 0,05 micron 0 - 7500...
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Page 7: Description Of The Instrument
3 Description of the instrument 3.1 Use The Vac Checkerâ is a digital vacuum gauge for the precise measurement of extremely small pressures in the vacuum range. This allows you to monitor the evacuation (usually during commissioning) of refrigeration systems and heat pumps. -
Page 8: Displays Overview
Dt = temperature difference between evaporation temperature of water and ambient temperature - unit set (°C, °F) 4 Slave Mode Appears when the Vac Checkerâ, is connected to a testo 570 via a connecting cable and the testo 570 is in Evacuation mode. -
Page 9: Control Keys Overview
3 Description of the instrument 5 Pressure display Displays the currently measured pressure, the measurement parameter and the unit set (mmHG, Torr, mbar, hPa, micron, inH2O, inHg). 3.4 Control keys overview Element Function - Switches to the settings. - Switches between the set-up options. Switches the display illumination on or off. -
Page 10: Operation
4 Operation 4.1 Connecting Always use refrigerant hoses that are specifically intended for evacuations. - Remove sealing caps. - Connect the Vac Checkerâ, to the circuit. 4.2 Switching instrument on and off - Press The instrument switches on or off. -
Page 11: Setting Units And Autooff
4 Operation 4.4 Setting units and AutoOff The set-up menu must always be completely navigated through, even if only one parameter needs to be changed. - Switch the instrument on. - Press to change settings. - Press to set the pressure unit required. - Page 12 4 Operation - Press to set the temperature unit required. - Press The temperature unit is set. ê The display shows the setting for the ê alarm threshold. Adjusting the alarm threshold causes an alarm to be triggered when the set value is exceeded.
- Page 13 4 Operation - Press to switch AutoOff on or off. - Press All settings are stored. ê The display changes to the measuring ê mode. The instrument can now be used. ê...
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Page 14: Displaying Temperature Values
<0.1hPa. - Field calibration tunes the Vac Checkerâ to your vacuum pump. - Connect the vacuum pump to a port of the Vac Checkerâ. - Close the second port with the sealing cap. - Start the vacuum pump. -
Page 15: Calibration With Reference Vacuum Gauge
- Using the key, input the reading from the reference vacuum gauge (e.g. 150 microns/0.2 hPa). - On the Vac Checkerâ press at the same time for at least 3 seconds. ê The Vac Checkerâ is calibrated and calibration is completed. -
Page 16: Maintenance
5 Maintenance 5 Maintenance 5.1 Changing batteries - Switch the instrument off. - Flip hook up. - Open the battery compartment. - Remove batteries. - Insert new batteries, observing the indications inside the battery compartment. - Close the battery compartment. - Fold hook down. - Page 17 5 Maintenance - Wipe the instrument housing with a damp cloth. Use mild household cleaning agents or soapy water for this.
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Page 18: Tips And Assistance
6.1 Questions and answers Question Possible cause / solution Readings are incorrect. - Check that the Vac Checkerâ is connected properly. - Connect the Vac Checkerâ directly to the vacuum pump in order to check the values. - Check that all hoses are leak-tight.