YSI YSI 556 MPS, Set-Up, Operation & Calibration

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Long Term Storage
•
Remove the pH or pH/ORP sensor from the probe module and store according to the
individual sensor storage instructions.
•
Seal the empty port with the provided port plug.
•
NOTE: Leave the conductivity/temperature sensor and dissolved oxygen sensor,
with membrane cap still on, in the probe module.
•
Place 1/2

of water, deionized, distilled or tap, in the transport/calibration cup.
•
CAUTION: The water level has to be low enough so that none of the sensors are
actually under water. Check the transport/calibration cup periodically to make certain
that the water is still present or the sponge is still moist.