12 Product description
49
and can directly be used both for absorption and opacity
measurements.
Since the opacity is not an unambiguously defined quantity, but a
subjective impression, opacimeters are calibrated with reference
standards. The displayed measured values outside of the
reference standards strongly depend on the measuring system,
the wavelength, and the measuring angle, however. In order to
improve the comparability of different measuring systems, user-
specific calibration may make sense. This can be performed in the
calibration menu without finally deleting the factory calibration.
Reasonable calibration procedures are described in chapter 6
Calibration.
(CdEF) Defines the number of calibration points for the user-specific
calibration. You can select between at least 2 and 6 points at the
most.
(CJ 1…6) The target values of the respective calibration points are
set here.
(CAL1…6) The actual values of the respective calibration points are
set here.
(SAJE) The user-specific calibration is saved and accepted as soon
as the “SAVE” function is set to “YES”.
The reset function in the calibration menu can be used in order to
discard the user-specific calibration and the sensor is reset to the
factory calibration. However, the parameterisation in the user
menu is maintained.
12.4 Process integration
The STS 03 sensor is installed into pipelines or tanks by means of
his hygienic modular ½“ process connections directly using a
welding sleeve (e.g. BP15) or inserted into existing process
connections using the corresponding process adapters. The STS
04 rod-shaped sensor is installed into a quick-change fitting (SAW)
that in turn is connected to the process lines or to the tank.
Number of
calibration points
Calibration points
target values
Calibration points
actual values
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