OS3030 Changing and Scanning the Basic Settings
1. Conductivity meter, 2. Manual Temperature compensation, 3. Conductivity correction factor
20
You can also specify whether
the system should cut out if the
value rises above the MAX
limit.
The fault signal “value > MAX
conductivity value“ appears on
the LCD after a programmable
delay of between 1 and 9999
seconds if the MAX limit is exceeded. The system cuts out, if this action is pro-
grammed in programming step 1.7.
In programming steps 6.1 or 6.2 you can also define whether or not the alarm
relay should kick in.
2. Manual temperature compensation
If a water temperature below or
above 25°C is entered, the
conductivity reading shown
can be compensated in line
with the current water temperature. The following graph shows the correction
factor depending on the temperature selected.
3. Conductivity correction factor
The conductivity measurement relates to a water temperature of 25°C. The value
shown can be compensated manually at other temperatures.
Other measuring faults, brought about by polarisation, specific resistances or
cable capacities can be com-
pensated here by entering a
correction factor, for a certain
range at least.
A correction factor of 0.10 to
5.00 can be entered for a conductivity of 1, Calculating the conductivity correc-
tion factor:
Take a sample of water and measure the target conductivity using a high-
precision meter.
Record the value displayed on the controller. This is the actual value.
You can then calculate the correction factor to enter as follows:
S t e p n o . : 1 . 8
D e l a y 1 8 0 s
S t e p n o . : 1 . 7
S w i t c h o f f Y
/ N
S t e p n o . : 2 . 1
T e m p e r a t u
r e 2 5 ° C
S t e p n o . : 3 . 1
F a c t o r C
M 1 . 0 0 *
Correction facto
arge
= Correction factor
Actual value
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