1. Introduction Thank you for choosing a quality instrument from Swema. SwemaFlow 4000 measures airflow directly in l/s, m3/h or cfm (when set to US units). The instrument is turned on and off with the red button next to the display. When the instrument is turned on the display shows first the firmware version then the voltage of the bat- tery.
3. Function SwemaFlow 4000 calculates the average value of the airflow during 2 seconds. The average flow is presented on the display with an up- date two times per second. SwemaFlow 4000 compensate automa- tically for the air density by measuring air temperature and barome- tric pressure.
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HOLD function (RED button on handle) If the button on the handle (small red button) is pressed down shortly the display will freeze the measured value. This will be shown with the text ”Hold” is shown in the upper left corner of the display.
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Note book (notE) If GREY button is pressed two times when in standard measuring mode notE will be displayed. To enter the note book press the but- ton on the handle (small red button). ”Note” and the number of the last saved note will be shown on the display.
5. Driver installation To be able to use SwemaFlow 4000 with a PC or to change settings a driver for the probe needs to be installed. The drivers are automatically installed after installation of the of the fre software ”SwemaTerminal 3”.
”Flow”, ”Temperature” & ”Pressure”: SwemaTerminal 3 shows the air flow, temperature and barometric pressure that SwemaFlow 4000 is currently measuring. ”Averaging time”: Averaging time is used to decide how fast the displayed values will be updated.
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With ”Freq:” it’s possible to set how often a new value should be stored. ”Read calibration certificate” and ”Read Notebook”: By clicking on ”File” a dropdown menu is opened. It’s here possible to show SwemaFlow 4000:s calibration certificate and print the sto- red measurements to the PC.
After ”Terminal Window” is clicked a new window is opened. Press ”Enter” on the keyboard and the main terminal menu for SwemaFlow 4000 will be opened. To change a setting or enter a sub menu such as the ”Calibration and Flow Adjustment Menu”...
8. Calibration & Adjustment To calibrate and adjust SwemaFlow 4000 press ”C” on the keyboard when in the main terminal menu. In the Calibration and Adjustment menu it’s possible to adjust the flow in low, middle and high range. It is also possible to make an offset for temperature and barometric pressure.
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