
USER GUIDE
Flow Meter Testing
Version 1 Flow Meter User Guide
11
SENSOR BLOCK ASSEMBLY
The sensor is not covered by a warranty. The sensor is extremely fragile. Use
caution when handling it.
The sensor is hot. Before touching the sensor make sure it has cooled.
1 With the flow meter still attached, remove the sensor hose from the filter.
2 Plug the sensor hose with your finger.
3Turn the air pump on.
4 Record the flow meter reading in a data table on page 16.
Note: The flow meter reading should be zero. If the flow is more than
two liters/minute the sensor has a significant leak.
5Turn the air pump off.
6 If the sensor is leaking, remove the sensor and clean all threads. Clean and
tighten all fittings. Reinstall the sensor and test again.
7 Attach the pump inlet hose to the pump inlet port.
8 Attach the sensor hose to the filter.
Figure 8: Test Point Three—Sensor Block Assembly
sensor hose
plug with finger
sensor
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