Hach Orbisphere 510 Manuel D'utilisation De Base page 23

• The value "% variation" indicates the variation during the last 3 measurements, which is the
stability of the measurements. A variation as low as possible is needed for a precise
calibration.
• The display shows the actual calibration parameters, and the actual readings (temperature,
barometer, current).
7.4.4 Barometric pressure calibration
Note: The barometric pressure sensor has been factory calibrated but should be periodically verified with a
precision certified barometer. This is only necessary if measuring in gas phase with fraction units (%, ppm).
The upper box shows the barometric pressure as measured by the instrument.
Using a precision certified barometer measure barometric pressure in the location where the
measuring instrument is used. Compare the values and if they are the same press Cancel, otherwise
enter the new barometric pressure value in the lower box and press Validation to validate the new
setting.
7.5 Services menu
There are a number of options available from this menu with the key options detailed below.
7.5.1 Calibration timer
The instrument can automatically remind the user when the next sensor calibration is due.
• To enable the timer, select Enable and enter a delay in days.
• The display shows the current instrument date and time, next calibration due date and time, and
the remaining days.
The next calibration date is updated when the sensor is calibrated.
7.5.2 Service timer
The sensor attached to your instrument will require periodic servicing and maintenance. The
instrument can automatically remind the user when the next sensor service is due.
• To enable the timer, select Enable and enter a delay in days.
• The display shows the current instrument date and time, the next sensor service due date and
time, and the remaining days.
After a service press the Service done button to update the next service date.
7.5.3 Language selection
Select the language from a list and restart the instrument to apply the change.
7.5.4 Clock
Update the time and date information.
7.6 Other menus
For information on setting up relays and analog outputs refer to the full user manual (Inputs/Outputs
menu).
For information on setting up RS485, PROFIBUS-DP, USB, HTTP/TCP-IP and attached PRINTER
links refer to the full user manual (Communications menu).
For information on setting up products and global configurations refer to the full user manual
(Products and Global Configuration menus).
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