YSI Pro30 - Manual (Page 14)

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sensor storage
SHoRT AND LoNG TERM SToRAGE
For both short and long term storage, the conductivity sensor should be stored
clean and dry.
Remove the batteries from the instrument when storing it for long periods of
time (>30 days).
Long Term Storage Temperature: -5 to 70°C (23 to 158°F)
T R o U B L E S H o o T I N G
Symptom Possible Solution
Instrument will not turn on,
a battery symbol appears,
or “Critical Shutdown”
displays on the screen.
Low battery voltage, replace batteries. 1.
Batteries installed incorrectly, 2.
check battery polarity.
Return system for service. 3.
Temperature values display
over or Undr on Run screen.
Sample temperature is less than -5° C or 1.
more than +55°C. Increase or decrease
the sample temperature to bring within
the allowable range.
Contact YSI Tech Support. 2.
Instrument will not calibrate the
Conductivity sensor; instrument
displays “Calibration over”,
“Calibration Under”, or “Unstable
Reading” during calibration.
Ensure the conductivity sensor is 1.
clean. Follow the cleaning procedures
in the Care, Maintenance and
Storage section of this manual.
Verify the calibration solution is above 2.
the two holes near the cable, see figure 8.
Verify the calibration solution 3.
is not expired or contaminated.
Try a new bottle of solution.
Ensure you are entering in the correct 4.
value for the solution according to the
measurement units. 1 mS = 1,000 uS.
Allow sufficient stabilization time 5.
for conductivity and temperature
AND wait at least 3 seconds before
confirming a calibration.
Contact YSI Tech Support. 6.
Symptom Possible Solution
Conductivity readings
are inaccurate.
Ensure the conductivity sensor is 1.
clean. Follow the cleaning procedures
in the Care, Maintenance and
Storage section of this manual.
Verify the sample is above the two 2.
holes near the cable, see figure 8.
Verify calibration. 3.
Verify temperature readings 4.
are accurate.
Verify the correct units are setup in the 5.
System Setup menu, i.e. uS vs mS and
Conductivity vs. Specific Conductance.
Contact YSI Tech Support. 6.
Conductivity values display
over or Undr on Run screen.
Ensure the conductivity sensor is 1.
clean. Follow the cleaning procedures
in the Care, Maintenance and
Storage section of this manual.
Verify the sample is above the two 2.
holes near the cable, see figure 8
Verify calibration. 3.
Verify temperature readings 4.
are accurate.
Sample conductivity is outside 5.
the measurement range of the
instrument, i.e. 0-200 mS.
Contact YSI Tech Support. 6.