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3. Maintenance
* The same contents as those in the instruction manual are described below:
To keep the instrument in the normal condition, refer to the contents concerning inspection,
repair and maintenance.
3.1 Inspection items
3.1.1 Daily inspection
Inspection before start of work
Inspection
item
Inspection standard
Measures against
abnormality
Gas washing
bottle
There shall be no dirt.
Cleaning
Status
Shall not be “OFF-LINE”.
Checking of cable
connection
and port
Instrument
check
Shall be completed normally.
Message check
Measurement
method
The setting to be used shall be set in the
system setup.
Change the setting
using “configuration
setup” - “System
setup”.
Errors and
warnings
No error or warning message shall be
displayed after the completion of the
countdown.
Checking at time of measurement
Item
Standard
Measures against
abnormality
Blank value
When purge measurements are made
repeatedly, the “HEIGHT” value on the
“LOW” side shall be 0.0002 or less.
Continual blank
measurements or
cleaning of line
Calibration
curve
When a calibration curve is prepared
using standard solutions, the correlation
coefficient shall be 0.9990 or more.
Replacement of collector
tube or cleaning of line
Sensitivity
The gradient of the calibration curve
shall be /-30% of the value at
the time of the delivery.
Replacement of collector
tube or cleaning of line
History
A blank value immediately after the
measurement of the standard gas shall
be 2% or less of the previous quantity of
mercury.
Cleaning of gas washing
bottle or replacement of
mercury collector tube
Precision
The measurement value of the standard
gas after the measurement of a real
sample shall be /-5%.
Consideration of method
or quantity of samples
