
CENTRA – MDS/LDS/RDS US Operator Manual
ELGA
Page 24
CENTRA – MDS/LDS/RDS US Version 01 – 08/14
Step 9 - Quality alarm settings QS1 (RDS variants)
This screen is used for setting the value at which the
quality alarm will activate.
1.
PRESS SCROLL
to select alarm point.
(Increments of 10, ranging from 20 to 100
µ
S/cm).
If ‘0’ is selected the alarm will be tuned ‘OFF’.
OR
PRESS TICK
to proceed to step 10.
2.
PRESS TICK
.
Step 10 - Product water purity alarm settings QS2 (RDS
variants)
This screen is used for selecting the value at which the
product water purity alarm will activate. The alarm does
not stop the process and will automatically reset if the
purity level recovers.
1.
PRESS SCROLL
to select alarm point
(increments of 1, ranging from 1 to 17M
Ω
OR
increments of 10, ranging from 20 to 100µS/cm).
Note: The alarm points are only displayed in M
Ω
.cm
and do not change to
µ
S/cm regardless of the
water purity unit displayed setting.
OR
TICK
to proceed to step 11.
2.
PRESS TICK
.
Step 11 - Temperature alarm settings TS1 (RDS variants)
This screen is used for selecting the value at which the
RO permeate temperature alarm will activate. The alarm
does not stop the process and will automatically reset if
the temperature returns below the set point.
1.
PRESS SCROLL
to select alarm point
(increments of 1, ranging from 20 to 50
°
C)
OR
PRESS TICK
to proceed to step 12.
2.
PRESS TICK
.
Step 12 - Product water temperature alarm settings TS2
(RDS variants)
This screen is used for selecting the value at which the
product water temperature alarm will activate. The alarm
does not stop the process and will automatically reset if
the temperature returns below the set point.
The system will automatically perform the temperature
flush sequence when the temperature measured by TS2
is 2°C below the selected temperature alarm setting, and
the feedwater valve (V2) is closed. The temperature
dump stops once feedwater starts to fill the reservoir.
Alarm settings QS1 screen
Alarm settings QS2 screen
Alarm settings TS1 screen
Alarm settings TS2 screen