SYMPTOMS FAULTS SOLUTIONS
Velocity reading is zero
with flow
Sensor not connected Connect sensor
Sensor coated with debris or
sediment
Clean sensor with a soft brush
Velocity reading is correct
but not changing
Batteries too low to sample,
displays last recorded value
Replace batteries with 4 premium
quality Alkaline D-Cell
Velocity reading with no
flow
Wave action on water surface or
upstream turbulence
Relocate sensor
Temperature display is
blank
Fluid temperature is below 5°F /
-15°C
Minimum fluid temperature for
sensor operation is 5°F / -15°C
Temperature displayed in
Greyline Logger is 103.5°C
/ 218.3°F
Sensor not connected Connect sensor
Memory capacity display is
0%
Data logger memory is full Run Greyline Logger software
- download log file
- click
Write from real-time
display to restart the logger
FREQUENTLY ASKED QUESTIONS
1. How to turn Stingray On and Off?
Stingray is On when batteries are installed. Default logger rate is 30 seconds which will run for 45 days
before filling the logger memory and discharging the batteries. To turn Off the Stingray remove the
batteries.
2. Is logger memory retained with batteries removed and Stingray Off?
Yes, logger memory is maintained with Stingray batteries removed. The only way to delete logger
memory is through Greyline Logger software
Real-Time display and clicking Write.
3. How long do D-cell Alkaline batteries last?
New
D-cell Alkaline batteries will power the Stingray for the same time duration as the logger capacity.
Refer to “Logging Interval” in this manual.
Page 18
Stingray Level-Velocity Logger
Manual Series A.3
