Metrohm 875 KF Gas Analyzer - Manual (Page 41)

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5 Operation and maintenance
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5 Operation and maintenance
5.1 General notes
5.1.1 Care
WARNING
Appropriate personal safety measures must be taken for any work dur-
ing which hazardous substances may be released (e.g., removing con-
nection piping, disassembling or modifying the gas-carrying system).
Examples of these safety measures include wearing personal protective
equipment in accordance with the laboratory regulations: protective
glasses, gloves and clothing.
Rinse with nitrogen and release the pressure from the system prior to
carrying out work on the gas system.
The 875 KF Gas Analyzer requires appropriate care. Excess contamination
of the instrument may result in functional disruptions and a reduction in
the lifetime of the otherwise sturdy mechanics and electronics.
Spilled chemicals and solvents should be removed immediately. Above all,
the plug connectors on the rear of the instrument (in particular the power
socket) should be protected from contamination.
CAUTION
Although this is largely prevented by design measures, the power plug
should be unplugged immediately if aggressive media have penetrated
the inside of the instrument, so as to avoid serious damage to the
instrument electronics. In such cases, Metrohm Service must be
informed.
The molecular sieve of the predrying cartridge must be exchanged at reg-
ular intervals (in accordance with the residual water content of the nitro-
gen used).
Please refer to the 851 Titrando manual for information on maintenance
and care of the coulometer cell.
A careful visual inspection of the gas-carrying system and the wet end has
to be performed before an analysis series is started (e.g., status of the
coulometer cell, gas connections and exhaust lines, leak-tightness). Check
all connections of the system for leakage at regular intervals and particu-