OPERATING INSTRUCTIONS | DOSIC
®
8020955/11HD / 2018-12-12| SICK AG
Subject to change without notice
31
7
COMMISSIONING
3.
Select Set using the arrow pushbuttons and confirm using Set.
4.
Select the value and confirm using Set.
5.
Select Reset using the arrow pushbuttons and confirm using Set.
6.
Select the value and confirm using Set.
7.
Select Time using the arrow pushbuttons and confirm using Set.
8.
Select the value and confirm using Set.
A notification of the sterilization cycle can be output over a status output configuring
under the Q1Stat (Q2Stat) as Steril.
7.5.9
Evaluating signal quality
The signal quality is evaluated on the base of four different parameters:
SigQu1
,
SigQu2
,
SigQu3
and
SigQu4
.
These are described as follows.
SigQu1:
Indication for the robustness of the measurement environment. A low signal quality is
an indication for disturbances such as strong vibration on the measurement pipe or
turbulence formation due to a not correct installation conditions.
Value range: 0 to 100%
Good signal: > 50 %
SigQu2:
Indication for the attenuation of the ultrasound signal caused by the measured
medium. A low signal quality is an indication that some medium parameters could influ
-
ence the measurement (e.g. as viscosity or density too high).
Value range: 0 to 100%
Good signal: > 10 %
SigQu3:
Indication for the robustness of the ultrasound signals. A low signal quality is an indica-
tion for interferences on the signal path (e.g. gas bubbles or solid particles).
Value range: 0 to 100%
Good signal: > 30 %
SigQu4:
Not used. Available for future developments (always shown at 100 %).
7.5.10
Activating the display lock
To prevent the sensor from being tampered with, password protection can be activated
for the display.
When the protection is active, the expert password (036742) must be entered before
the menu can be accessed.
The menu is only unlocked once the correct password is entered.
Configuration
1.
Select the Config menu using the arrow pushbuttons and confirm using Set.
2.
Select the Lock menu item using the arrow pushbuttons and confirm using Set.