Ysi 556 MPS Bedienungsanleitung PDF herunterladen (Seite 105)

YSI Incorporated YSI 556 MPS

Page 99

12. Storage

Proper storage between periods of usage will not only extend the life of the

sensors, but will also ensure that the unit will be ready to use as quickly as

possible in your next application.

12.1 General Recommendations for Short Term Storage

No matter what sensors are installed in the instrument, it is important to

keep them moist without actually immersing them in liquid. Immersing

them could cause some of them to drift or result in a shorter lifetime.

YSI recommends that short term storage of all multi-parameter instruments

be done by placing approximately 1/2 inch of tap water in the

transport/calibration cup that was supplied with the instrument, and by

placing the probe module with all of the sensors installed into the cup. The

use of a moist sponge instead of a 1/2 inch of tap water is also acceptable, as

long as its presence does not compromise the attachment of the cup to the

probe module. The transport/calibration cup should be sealed to prevent

evaporation.

NOTE: Ensure that an o-ring is installed in the o-ring groove on the

threaded end of the probe module body. See Figure 3.7

Transport/Calibration Cup Installation.

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.

NOTE: If the storage water (tap water) is accidentally lost during field use,

environmental water can be used.

12.2 General Recommendations for Long Term Storage

12.2.1 Probe Module Storage

1. Remove the pH or pH/ORP sensor from the probe module and

store according to the individual sensor storage instructions

found in Section 12.2.2 Sensor Storage.

2. Seal the empty port with the provided port plug.

NOTE: Leave the conductivity/temperature sensor and

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Ysi 556 MPS Bedienungsanleitung Seite 105