Operating the BP50 page 9
LED indicators
LED indicator Meaning
Run
Blue, continuous. Data being transmitted to LabDesk
(during a measurement or calibration via LabDesk).
Status
Green, flashing: The unit is waiting for measurable
bubbles.
Green, continuous: The unit has detected measurable
bubbles.
Red, continuous: Firmware update mode
( Chapter 5)
Cal
Blue, continuous: Calibration has been started via the
BP50 or via LabDesk
3.2 Connecting the instrument
It is essential to install the USB driver before you connect the instrument to the
computer for the first time ( LabDesk manual).
Connect the BP50 to a USB port on the computer.
3.3 Fitting a capillary
Wear disposable gloves so that the capillary does not become contaminated.
Fit the capillary to the capillary holder on the BP50 using slight pressure.
3.4 Switching the compressor on and off (for test purposes)
The compressor can be switched on to check the generation and detection of
bubbles.
Press the key.
The compressor will start. The instrument will wait for measurable bubbles.
Immerse the capillary in the liquid.
The Status indicator will illuminate continuously when measurable bubbles are
detected.
Switching off
Press the key once more.
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