Storage; Instrument Storage; Enzyme Membrane Storage; Instrument Handling/Transport - Xylem YSI 2500 User Manual

9 Storage

During normal use, the 2500 Analyzer should be left with the power on at all times. It should also have an adequate
supply of buffer. This will keep the enzyme probes polarized and ready for use and prevent the module from drying out.
9.1

Instrument Storage

If the 2500 Analyzer is not going to be used for 2 weeks or longer, remove the buffer and calibrator solutions from the
bottles and replace them with authorized rinsing agent (see Section 8.1). Flush the rinsing agent through the system
thoroughly, empty the bottles, reinstall them in the instrument and prime the system with air. After all the fluid has been
pumped from the system, drain the sample module by temporarily removing one probe. Reinstall the enzyme probes and
store the instrument with the membranes in place.
Store the instrument in an environment from 15–35°C, 10–75% humidity (non-condensing).
9.2

Enzyme Membrane Storage

Extra membranes should be refrigerated until use. Once installed, Membranes should remain in 2357 Buffer solution and
not allowed to dry out.
9.3

Instrument Handling/Transport

Before transporting, drain all fluids as described above and secure the sipper assembly.
Transporting the instrument may require two people.
9-1