Vaisala Indigo300 - Calibration and Adjustment; Calibration and Adjustment Overview

7. Calibration and adjustment
7.1 Calibration and adjustment overview
Calibration means comparing the measurement output of the device to a known
reference, such as a known environment in a calibration chamber or the output of
a reference instrument. Correcting the reading of the device so that it measures
accurately is referred to as adjustment.
Vaisala recommends sending the probe connected to the transmitter regularly to Vaisala for
factory calibration. The probe is calibrated and adjusted at multiple points along its
measurement range. Factory calibration always includes a traceable calibration certificate and
adjustment, if needed. You can also send the transmitter to Vaisala for calibrating and
adjusting the transmitter's analog output channels.
Factory calibration leads to highest accuracy and lowest uncertainty. After factory calibration
the instrument performs as new. For up-to-date information about calibration points and
oering, visit store.vaisala.com.
When returning a product for calibration or repair, make sure it
has not been exposed to dangerous contamination, and is safe to handle
without special precautions.
WARNING!
It is also possible to adjust the probe and the transmitter's analog output channels on the field
using the Insight software or the Indigo80 handheld indicator.
If you think the device is not measuring correctly, calibration and adjustment is
not the first thing to do. Check the following first:
• Make sure nothing is interfering with the measurement: heat sources,
temperature dierences, or condensation.
• Check that there is no moisture on the probe. If the sensor has become wet,
wait for it to dry.
• Always wait for the measurement to stabilize.
More information
‣
Calibration and adjustment with Insight PC software (page 47)
‣
Calibration and adjustment with Indigo80 handheld indicator (page 52)
Indigo300 User Guide M212849EN-A
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