Calibration Reports - Hach Ultra ORBISPHERE 511 Quick Manual

Calibration Reports

Once a measured gas calibration is completed, a
report is issued showing the log file of the last
actions. The calibration report will contain the
data for the last 50 calibrations. Each calibration
record will contain parameters useful for
traceability.
For interfering gas calibration reports, you will be
asked to select the interfering gas from those
available.
Barometric Pressure Calibration
Upper box shows the barometric pressure
measured by the instrument.
Using a precision certified barometer, measure
barometric pressure in the location where the
measuring instrument is used. Compare the
values; if values are the same press cancel;
otherwise enter the new barometric value in the
lower box and validate the new setting.
Calibration (cont)
External Pressure Calibration (optional)
Two calibration methods for the external pressure
sensor can be selected:
•
•
By default the two point calibration is selected.
Two Point Calibration (recommended)
Connect a certified absolute pressure gauge to
the sample line, and use a certified precision
barometer.
•
•
One Point Calibration
Connect a certified absolute pressure gauge to
the sample line.
•
Two point calibration (recommended)
One point calibration
The two point calibration starts with
barometric pressure for the lower point.
Expose the external pressure sensor to
the atmosphere. Enter the barometric
pressure read on the barometer in the
upper window and validate P1.
Expose the external pressure sensor to
line pressure, making sure it is exposed
to the same pressure as the certified
absolute pressure gauge. Enter the
absolute pressure value read on the
certified absolute pressure gauge in the
lower box, and validate P2.
Expose the external pressure sensor to
line pressure, making sure it is exposed
to the same pressure as the certified
absolute pressure gauge. Enter the
absolute pressure value read on the
certified absolute pressure gauge in
lower box, and validate P1.
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