3.
After the initial warming-up phase and as soon as there is a
continuous process flow through the device, the device
shows the measured degree of turbidity of the sample on the
LCD display. The corresponding signal is issued via the ana‐
logue output (4 ... 20 mA) or the digital output, depending on
the options selected.
4.
You now need to adjust the basic settings, such as date and
time.
6.3 Routine measurement
The routine measurement is performed in AUTO mode. Turbidity
can be measured correctly approx. 45 ... 60 minutes after the start
of the measurement / commissioning (warm-up phase).
When a continuous process water flow is passing through the
DULCO turb C, the DULCO turb C indicates the turbidity level of
the sample measured on the LCD display. A 4 ... 20 mA signal or a
digital signal is also issued, depending on the option selected. The
measurement is done at a sample rate of 1/second.
6.4 Access code
INFORMATION: We urgently recommend the use of a security
access code to prevent unauthorised access to the system and the
data.
The sensor is equipped with a security access function that you
can activate. When this option is switched on, the user needs to
enter an access code into the device to access any mode other
than
[AUTO]. A three-digit code is used.
When the access code is switched on, the symbol (1) lights up in
‘AUTO’ as a reminder that an access code is being used.
You can activate the access code for the DULCO turb C in the con‐
figuration menu. If the access code has been activated, a
‘key’
symbol (1) appears at the bottom right of the LCD display when
[MODE/EXIT] is pressed.
1.
Call up CONFIG mode by pressing the UP or DOWN keys
until the arrow lights up beside CONFIG and then press the
EXIT key.
2.
Press the right arrow key to move to the next menu until
CODE is displayed.
3.
Use the UP or DOWN keys to select the setting. (ON or
OFF).
A0519
Fig. 13: Access code
Switching the access code on or off
Commissioning
32