Endress+Hauser Liquisys M CCM223, Operating Instructions Manual

Page: 40 / 124

Commissioning Liquisys M CCM223/253
40 Hauser
6.4.2 Setup 2 (pH/ORP and temperature)
In the SETUP 2 function group, you can change the settings for temperature and pH / ORP
measurement.
Basic version does not include functions in italic .
Forms of chlorine
A distinction is made between free chlorine and combined chlorine.
Free chlorine
Free chlorine refers to the sum of elementary chlorine (Cl
2
), hypochlorous acid (HOCl) and
hypochlorite ions (OCl
–
).These forms of chlorine are capable of killing bacteria, deactivating
viruses and oxidizing organic substances within a short period of time.
Combined chlorine
Combined chlorine refers to the forms of chlorine in water and consists of chemical
compounds made up of chlorine and ammonia (NH
3
) or ammonium (NH
4
+
).
Coding Field Selection or range
(factory settings bold) Display Info
B
Function group
SETUP 2
Initial display in function group SETUP 2.
B1
Select operating
mode
Off
pH
ORPmV
Field only exists in EP version.ORPmV =
redox potential in mV ( O xidation-
R eduction P otential).
If the operation mode changes, all user
settings are automatically reset to the basic
settings.
The operating mode setting is not
changed in field S9 when the instrument
is reset.
B2
Select pH
compensation
Off
Manu
Auto
Field only exists in ES and EP versions
(operation with CCS141/142).
B3
Enter value for
manual pH
compensation
last compensation value
pH 4.00 to 9.00
Field only exists if you selected "manual"
(Manu) in field B2.
The secondary value shows the measured
pH value.
B4
Enter correct process
temperature current measured value
0 to 50 °C
You can edit the displayed value.
An adjustment of maximum ±5 °C is
possible.
Due to high accuracy, an adjustment is
usually not required.
B5
Enter temperature
difference (offset) Curent offset
-5.0 to 5.0 °C
The offset is the difference between the
entered actual value and the measured
temperature.
B
SETUP 2
B1
Oper.Mode
Off
B2
pH comp.
Off
B3
pH 7.20
Manu.Comp
B4
¡C
RealTemp.
0.0
B5
¡C
Temp.Offs