
Type MS08
Sensor - Maintenance
48
▪
TOCeq
: Total Organic Carbon
▪
SQI
: Quality index
To start the simulation mode, do the following procedure:
Go to device
SAC254 Sensor
> function
Sensor
> tab
Maintenance
.
Select
Simulation
>
Status
>
On
.
The simulation mode is active.
A list of measure values appears.
Select the measure value you want to simulate and enter the desired value. Validate with
Apply
.
Repeat for any value you want to simulate.
The product status indicator is orange.
For the meaning of the signal of the product status LED, refer to chapter
.
11.3
Manually start a measurement
The feature
Start measurement
makes it possible to initiate a measurement manually, deviating from the
regular automatic measure interval.
Make sure that the login user level is
Installer
. Refer to chapter
.
Go to device
SAC254 Sensor
> function
Sensor
> tab
Maintenance
.
Select
Start measurement
.
The
Start measurement
wizard page appears, the measurement starts and the message
Measure-
ment running
is displayed.
When the measurement is finished, the wizard page displays the message
Measurement success-
fully completed
.
Close the wizard page: Select
Finish
.
11.4
Calibrate the zero value (base intensity)
The feature
Calibration
makes it possible to calibrate the zero value (base intensity) for the sensor.
Recommended setting for the zero-value determination
▪
Ambient temperature: 20 °C (if at all possible)
▪
Temperature of the ultra-pure water: 20 °C
Preparation of the sensor
Before you start the calibration, the following requirements have to be considered:
Prepare the sensor as described in
Preparing the sensor for the function test and zero value determ-
.
Make sure the optical path suits the needs of your application.
Make sure the optical path length is set correctly. Refer to chapter
Make sure the window is totally clean. Refer to chapter
Cleaning the measuring window [
Make sure the cleaned sensor is immersed in ultra-pure water (18.2 MΩcm).
Make sure that there are no bubbles on the glass surfaces.
Carry out 3–5 individual measurements to bring the sensor up to operating temperature.