5
OPERATION
42
OPTISYS TUR 1060
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01/2019 - 4007152501 - MA OPTISYS TUR 1060 R01 en
Work mode of the alarm function
•
HI:
HI:
HI:
HI: the relay changes state when the measured turbidity level is higher than the programmed
alarm level for the chosen alarm delay time.
•
LO:
LO:
LO:
LO: the relay changes state when the measured turbidity level is lower than the programmed
alarm level for the chosen alarm delay time.
•
ERROR:
ERROR:
ERROR:
ERROR: the relay changes state when an internal error occurs.
•
OFF:
OFF:
OFF:
OFF: this option completely deactivates the alarm functions. If a system error occurs a
message will appear on the lower row of the screen describing the problem.
Alarm set point
This is the level at which an alarm activates. On the instrument, the alarm set point is designated
as
“
S/P
”
. You can adjust the alarm set point to any valid turbidity level over the range of the
device in steps of 0.01 NTU/FNU.
Alarm delay times
The alarm delay time prevents activating the alarm when the measured turbidity level exceeds
or falls below the alarm set point just for a short time. There are two options:
•
Delay on:
Delay on:
Delay on:
Delay on: with this option you can define a time period; the turbidity level must exceed the
alarm set point for this time period before the alarm starts. Example: if you selected an alarm
set point of 50 NTU/FNU and an alarm delay time of 5 seconds, then the measured turbidity
must exceed 50 NTU/FNU for at least 5 seconds to start the alarm.
•
Delay off:
Delay off:
Delay off:
Delay off: similar to the option "Delay on" you can define a time period; the turbidity level
must not fall below the alarm set point for this time period before the alarm stops. Example:
if you selected an alarm set point of 50 NTU/FNU and an alarm delay time of 5 seconds, then
the measured turbidity must fall below 50 NTU/FNU for at least 5 seconds to stop the alarm.
If you have completed all settings for the output as described in the previous sections, the device
moves to the submenu for the alarm configuration. At first you see the following display:
•
Use the buttons
and
to select the desired work mode (HI, LO, OFF, ERROR).
•
Accept your selection by pressing
.
i
If you choose "HI", "LO" or "Error" a prompt appears to set up the alarm set point.
•
Use the buttons
and
to select the desired alarm set point in the upper row.
•
Accept your selection by pressing
.
AUTO
CAL
CONFIG
AUTO
CAL
CONFIG
