
Connecting Peripheral Equipment
Installation Guide | 6 3
Air Sensor Tubing Length and Bubble Size
The response of the air sensor module is highly dependent on the bubble size and
flow rate, and requires a minimum tubing length between the sensor outlet and the
pump inlet. Table 6 lists recommended tubing lengths for various flow rates and
bubble sizes.
1 ml/min 15–25 μl ≥6"
5 ml/min 50–100 μl ≥6"
10 ml/min 200 μl ≥6"
100 ml/min 1.05–1.4 ml ≥42"
Table 6. Recommended air sensor tubing lengths
Flow Rate Bubble Size 1/8" ID FEP Tubing Length
(air sensor to pump inlet)
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