Gastec GSP-501FT, Инструкция по эксплуатации

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14
6.2 Sampling Mode and Setting Ranges
There are three sampling modes: Timer mode, Volume Mode, and Program mode.
Timer mode After the set time has elapsed, the sampling operation automatically stops.
Select this mode to prioritize the ending time.
[Items to be set and selectable range]
● Flow rate: 50
～
500 mL/min
● Sampling time: 1 min. to 30 hr.
※Select " " if you wish to sample for a time that exceeds the
selectable range. Stop manually or continue to sample until the battery runs
out.
● Standby time: 0 min to 24 h
Volume Mode When the integrated volume reaches the set value, the sampling operation
automatically stops.
Select this mode to prioritize the integrated volume.
[Items to be set and selectable range]
● Flow rate: 10
～
500 mL/min
※When set to 10
～
49 mL/min, the pump runs intermittently with the flow
rate of 50mL/min. (See "6.12 Intermittent Operation" for details.)
● Volume : 0.010
～
900.0 L
※ The range where the sampling time is within 30 hours
※Select " " if you wish to sample with the integrated volume that
exceeds the selectable range. Stop manually or continue to sample until the
battery runs out.
● Standby time: 0 min to 24 h
Program mode The sampling setting (Timer mode or Volume Mode) is saved in advance,
and the setting is read out to perform sampling.
This is useful when using the same sampling setting repeatedly.
The maximum number of sampling settings that can be stored is 5.
※ Sampling can be performed with the same setting as the previous one by starting the pump while
"Previous Sampling Setting" or "Previous Sampling Result" are displayed.
△
Note

The operation is the same when " " is set for the sampling time in the Timer mode
and when " " is set for the integration flow rate in the Volume Mode.

Even if the flow rate can be set, the actual flow rate may not reach the set flow rate depending
on the load of the sampling media. Refer to "Constant flow rate operating range" in "10.
Specifications" for the maxim load for each set flow rate.

Even if the sampling time and integrated volume can be set, depending on the remaining
battery power, the battery may run out and stop during sampling. Refer to "5.1.3 Relationship
between Battery Level Indicator and Sampling Time" for details.

When the sampling time is less than 5 minutes, the effect of the error from the start of
sampling till the flow becomes stable is large. Therefore, the measured integrated volume in
the case of the timer mode and the measured sampling time in the case of the Volume Mode
may deviate from the range of ±5% of each calculated value.