Mace HVFlo XCi, Product Manual, Page: 234 / 255

Velocity sensor maintenance
To ensure trouble free data collection, sensors mounted in the flow should be kept free of built up debris, silt
or grease. This is done by using a stiff bristle brush and carefully cleaning the sensor head and surrounding
area. This process should be repeated as often as necessary in order to keep the sensors clean. Also check
the sensor cable for physical damage.
WARNING: Do not use steel bristle brushes that may cause damage to either the
MACE velocity or depth sensors.
Velocity sensor testing:
To perform this procedure you will need a MACE Doppler Sensor test kit (850-260) and a digital multimeter
capable of reading capacitance (<2nF range) and resistance (>20M W ).
Check the capacitance and resistance values according to this chart:
MACE XCi User Manual - 234 -