Hach K1200 Manuel D'utilisation Simplifié page 19

0.9 1.1
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
Start logging
measurements
Open data
7.4 Calibration
Calibrations can only be performed once the instrument has been installed and configured.
Note: The temperature sensor is factory calibrated and can only be changed by a Hach representative.
7.4.1 Portable calibration device
The portable calibration device (part number 33088)
is ideal for calibrating the sensor close to its location
in the sample. The device is designed to hold a one
liter gas cylinder but is fully compatible for use with
other kinds of gas cylinders.
When using other types of gas cylinders, simply
connect the gas supply to the Swagelok connector
(No. 1), and make sure that the inlet gas pressure
does not exceed 2 bars absolute.
The gas bottle is not supplied and must be
purchased locally.
4.0
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.
Only available in Store once mode, this option starts or stops the measurement
recording session. Measurement recording ends automatically when the buffer is
full.
Opens a table showing the measurments stored in the volatile memory (RAM).
Note: If TPO or TPA calculation is enabled, a "TPO data" or a "TPA data" button will
be available underneath the "Open data" button described above. Pressing this
button will display the TPO or TPA calculated data in a screen similar to that for
standard data.
4.3 4.4 5.6 7.0
English 19