Hach Orbisphere 510 Manuel D'utilisation De Base page 20

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 Definitions
To calibrate the gas to measure (main gas), the user usually puts the sensor in the main gas without
any interfering gas.
Calibrations can only be performed once the instrument has been installed, configured and the
channel has been set up. You must also ensure that you have the correct access rights to access the
calibration menu.
Select sensor calibration from the calibration menu.
There are two types of gas sensor calibration available, depending on the gas being measured and
the type of sensor being used:
1. In Air: For Oxygen and Ozone with an EC sensor. The sensor is exposed to air at atmospheric
pressure.
2. Direct value: Any gas with either an EC or TC sensor. This calibration exposes the sensor to a
gas with a known partial pressure, or a liquid sample with a known gas concentration.
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.
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.