ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 176)

Maintenance and Troubleshooting 7-11
Error Possible Reason Potential Corrective Measures
Erroneous Readings Unsuitable Hydraulic
Conditions at
Measurement Location Refer to possible solutions under the Erratic
Readings section.
External Depth (Level)
Signals Check for proper connection.
Check for damaged or crushed cables, short
circuits, improper resistance loads, or current
customers without galvanic isolation.
Check measurement range and span.
Check input signal through the I/O menu.
Sensor Check for proper connection.
Check for crushed or damaged sensor
cables/extension cables, short circuits, surge
arresters, or improper resistance loads.
Check the level signal, echo profile, flow
velocity signal, cable parameters, and
temperature through the I/O menu.
Verify that the sensor is installed at a location
that is free from vibration. Check sensor
installation (towards flow, horizontal
orientation), and the presence of dirt or silt.
Programming Verify proper settings for location, such as
pipe shape and dimensions (including units),
sensor type, and sensor installation height.
Memory Card has No
Data or is Missing
Data Memory Card Verify whether the memory card is defective.
Check card function through the I/O >
MemoryCard > Info menu.
Make sure the memory card is a card
supplied by ADS. Replace card from another
manufacturer with an ADS-supplied card.
Verify the method used for formatting the
card. Send cards formatted on a PC to ADS.
Transmitter Verify that the memory card is firmly seated
(securely and completely) in the unit.
Make sure the memory card has been
seated in unit for adequate amount of time.
Data may not have been saved before card
was removed (ALT key stroke).
Programming Verify storage is enabled through the
Memory Mode > Operation Mode > Mode.