YSI ProDSS Meter Calibration and Maintenance
K:\Streamkeepers\Monitoring\Eqpt & supplies\Calibration-Maintenance\SOPs\YSI ProDSS maint-
cal SOP's
5
Installing the Sensor Guard
1. Carefully slide the sensor guard over the bulkhead and attached sensors/port
plugs. Push the sensor guard toward the bulkhead until the sensor guard
threads align with the bulkhead threads (see image right).
2. Carefully finger-tighten the sensor guard clockwise.
NOTICE:
If any resistance is felt, loosen the sensor guard completely to prevent
cross-threading. Incorrect installation may cause damage to the sensor guard or
bulkhead that is not covered by the warranty.
Battery Life
Use YSI designated charging equipment only!
If the battery is not charged, the meter must be charged from the AC power
adapter (strongest charge source), directly from a computer USB connection or
from an external, portable USB battery pack. For the instrument to recognize
that it is using AC power, you must start charging the ProDSS while on. After
the instrument recognizes it is being charged, it can be turned off to finish
charging. When using the AC adapter, it takes approximately 14 hours to charge
the ProDSS battery when the instrument is turned off during the charge. The
amount of time required to completely charge the battery pack when the ProDSS
is initially turned on during the charge is approximately 9 hours. Expected battery life:
• ProDSS instrument only - 48 hours
• ProDSS with fully loaded cable assembly and 25% (Default) LCD brightness - 20 hours
• ProDSS with fully loaded cable assembly and 100% LCD brightness - 14 hours
For maximum battery life, keep the battery 40% to 80% charged. Also, a larger
discharge (e.g. to 50%) is better than a small discharge (e.g. to 90%) between recharges.
Check Sensor Readings
After installing all the sensors turn the unit on. In the
“Run” screen (main display screen, image right) make
sure all parameters are being displayed and are
displaying the proper units:
temperature - °C
barometer – inHg
dissolved oxygen – DO%
dissolved oxygen – DO mg/L
conductivity – SPC-µS/cm
salinity – SAL-ppt
turbidity – FNU
If any of these are not right, do the following:
Select the
probe button
and scroll down to Display
submenu and hit enter. Scroll down and select the
desired parameter. A submenu will appear with
multiple unit options, select the proper unit and return
to the Run Screen.
