Thermo Scientific MIRAN 205B Series, Инструкция по эксплуатации

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Chapter 7 Configuration and Setup
7-9
Log Mode
To set the Log Mode, press
1
(Log mode) from the Log Menu. Then press
1
to turn off
the logging feature, 2 to specify a single sample per logging trigger, or 3 to specify
continuous sampling per logging trigger. The display responds "-ACCEPTED-."
Single Sample Logging
Use this mode to log the same gas(es) at a variety of locations. For example, use single
sample logging if performing leak detection at a variety of locations. This setting only
logs one point. Additional points are logged by pressing the “1=Log” during analysis.
Continuous Sample Logging
Use this mode to monitor one location for an extended period of time. For example, use
continuous sample logging if monitoring an area where technicians are working for a
period of four hours.
It is highly recommended that the reference, temperature, and humidity compensations
should be enabled if continuous sample logging is used. This is because the analyzer can
experience drift from internal and environmental factors. The above compensations
minimize those drift sources to produce a more stable baseline.
Finally, since the SapphIRe analyzer is a portable unit, it is not designed to operate
continuously for long periods of time. Periods of analysis beyond 24 hours can result in
premature replacement of some components.
Log Interval
In single sample mode, the log interval is the countdown time after the logging trigger; in
continuous mode, it is the frequency of logging. To enter Log Interval, press
2
(Log
interval) from the Log Menu. It can be entered as 1 to 999 seconds, 1 to 999 minutes, or
1 to 999 cycles. The numeric field entry is keyed in; the units are selected with the down
arrow key. If the Log Mode is continuous there are three other alternatives. To view
these, press the period (.) key. Then in the next menu, select 1 to use the factory set
interval, 2 to log a value at the end of each measurement cycle, or 3 to use the smallest
interval in seconds that does not over flow the logging memory within eight hours. The
display responds "-ACCEPTED-."