7
CALIBRATION
Calibration certificates are available (contact the Sauermann office for more information).
We recommend annual calibration.
7.1 KCC 320: perform a CO
2
measurement verification
To avoid potential drifts, it is recommended to regularly perform a CO
2
measurement verification.
➢
Before checking the CO
2
measurement, verify the atmospheric pressure values measured by the device: launch a
dataset with a measurement interval of 15 seconds, or press to scroll the measurements.
➢
If the atmospheric pressure values are not compliant, it is possible to carry out a measurement correction with the
KILOG
software (please see the
KILOG
software user manual,
“Measurement correction”
chapter).
➢
Once the atmospheric pressure is checked, verify the CO
2
measurement: launch a dataset with a measurement interval of
15 seconds, or press to scroll the measurements.
➢
Connect a bottle of CO
2
standard gas on the gas connection on
the back of the
KCC 320
device with the supplied Tygon
®
tube.
(see picture)
➢
Generate a gas flow of 30 l/h.
➢
Wait for the measurement stabilization (about 2 minutes).
➢
Check the CO
2
values measured by the
KCC 320
.
➢
If these values are not compliant, it is possible to carry out a
measurement correction with the
KILOG
software (please see
the
KILOG
software user manual,
“Measurement
correction”
chapter).
7.2 KP 320 – KP 321: perform an auto-zero
It is possible to reset the device during a dataset recording:
➢
Unplug the pressure tubes from the device.
➢
Hold for 5 seconds to carry out the auto-zero.
The instrument resets. The screen displays
“ ... “
➢
Plug inthe pressure tubes.
The device continues the measurements and the dataset recording.
It is possible to reset the device when values are measured but not recorded:
➢
Unplug the pressure tubes from the device.
➢
Press to display the measurement.
➢
Hold for 5 seconds to carry out the auto-zero.
The instrument resets. The screen displays
“ ... “
➢
Plug in the pressure tubes.
The device continues the measurements.
20
CALIBRATION
