The figure below shows the flow rate versus the output current for a sensor with a standard flow range of
10,000 ml/min. The conversion of a flow to a current is scaled to the Qmax in the sensor table.
To
calculate an output current into the flow value (with adjusted calibration factor accounted for), use the
following equation:
Flow [ml/min] = (Current Output [mA] - 4 mA) x Analog Current Conversion Factor
The analog current conversion factor depends on Qmax of the selected sensor table. This value is indicated
in the calibration report, shown as range on the display, or given on the serial port.
→
The Qmax related to analog current conversion factors are indicated in the table below.
To calculate an output current into the "original" flow value as the system is measuring it (without adjusted
calibration factor), use the following equation:
Flow [ml/min] = (Current Output [mA] - 4 mA) x
Analog Current Conversion Factor (max. flow range)
Calibration Factor
Figure 9: Flow rate vs. output current for a sensor with a flow range of 10,000 ml/min
BioProTT™ FlowTrack SL
Page 36
Copyright em-tec GmbH
D101-704 BioProTT
TM
FlowTrack SL – User Manual – V 1.0