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Warning:
the column compartment and its components to cool for 60 minutes before touching
them. Monitor the column compartment's internal temperature to ensure that all
components are cool.
Notice:
column heater, always power-off the sample manager before connecting or
disconnecting the column heater's interconnect cable.
3.5 Configuring maintenance warnings
Maintenance counters, if available for a particular component, provide information about real-time
usage that can help you determine when to schedule routine maintenance for specific
components. You can specify usage thresholds and maintenance warnings that alert you when a
component reaches a specified threshold. You can minimize unexpected failures and
unscheduled downtime during important work. For information explaining how to specify
maintenance warnings, consult the Waters console Help.
3.6 Replacing the leak sensor
Leak detection for a standard, stack-mounted CH-A is supported by a leak sensor located behind
the sample manager door, in the upper drip tray. Leak detection for an extended CH-A
configuration is supported by a leak sensor located in the MS-bracket drip tray, mounted beneath
the extended column-heater housing.
Warning:
To avoid personal contamination with biologically hazardous or toxic compounds,
wear clean, chemical-resistant, powder-free gloves when performing this procedure.
Warning:
Required tools and materials
• Chemical-resistant, powder-free gloves
• Protective eyewear
• T20 TORX driver
• Flat-blade screwdriver
• New leak sensor
To prevent burn injuries, set the column temperature to Off, and then allow
To avoid damaging the electronic components of the sample manager and the
To avoid eye injury, use eye protection when performing this procedure.
December 4, 2019, 715005052 Version 02 (previously released as Rev.B)
Page 70
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