Hach ORBISPHERE K1000 Manual Básico Del Usuario página 20

1. Select Menu>Main>Configure the channel, then press the Sample Mode button and the Stop
criteria button.
Option Description
Above The stop criteria is met when the gas concentration is greater than the parameter entered
threshold in Threshold
Below The stop criteria is met when the gas concentration is lower than the parameter entered in
threshold Threshold
Stability The stop criteria is met when the variation of the gas concentration is smaller than the
parameter entered in Variation
Note: The number of samples taken into account to compute the Variation can be
adjusted using the parameter Depth.
Time The stop criteria is met when the elapsed time reaches the Max. time parameter.
Max. time The parameter Max. time is the maximum time allowed to reach the target. If Time is not
the type of stop criteria, then when this delay has elapsed, the measurement stops and the
message aborted is displayed.
Time filter The time filter allows you to filter the stop criteria. The sample mode is stopped when the
stop criteria is fulfilled for a time greater than the parameter Time Filter.
As an example, if criteria is set to Above threshold and Time Filter is set to 10 sec. the
measurement stops when the gas concentration is above the threshold for more than
10 seconds.
7.3.3 Measured data storage
There is one measurement file which contains the data generated by the measurement cycle. The
measurement file is updated in volatile memory and regularly copied in non-volatile memory (file
back-up). At start up the measurement file in volatile memory is updated with the file from the non-
volatile memory.
Note: Data stored in volatile memory is lost when instrument is powered off; non-volatile memory is permanent. In
case of an accidental power off event the instrument resumes measurement storage after the last measurement
stored in flash.
1. Select Measurement file from the Measurement menu:
Option
Storage mode
RAM time
FLASH time
Save in flash now
Auto save in flash
Purge data
20 English
Description
Select No storage if data storage is not required. Select Store once to start
recording measurements. When the volatile memory is full the recording of
measurement stops. Select Rolling buffer for continuous recording of
measurements. When the volatile memory is full the latest measurement set
replaces the oldest one (first-in, first-out)
The delay between two recordings of measurement data.
The delay between two data file transfers from volatile memory into non-volatile
memory. The last data file erases the previous one. This option is only available if
the Auto save in flash box is checked.
Press this button to store measurement data in flash immediately. After pressing this
button, press OK to initiate the process. A warning screen appears informing you
that the operation can take up to 30 seconds. Press Yes to continue or No to abort.
Check this box to save measurements in flash automatically. Measurements are
saved at regular time intervals as defined in the FLASH time box.
Clear all data in the volatile and non-volatile memories.