TOCII CA72TOC Commissioning
Endress+Hauser 37
6.3.4 Menu SETTING - BASIC DATA
a0012580-en
Fig. 17: "Programming" menu
SETTING
LISTS
PROGRAMMING
TEST
RANGE DATA
SET CLOCK
ALARM LIMITS
BASIC DATA
SET DEFAULTS
MEASURING SITE
Parameter Unit Factory
setting
Description
DC OUT mA 4 Sets the signal output to 0 to 20 mA or 4 to 20 mA.
SCALE AO 1000 Scale end value of the analog output.
e.g. 1000 mg/l = 20 mA
P1 100% ml/min 5.6 Feed rate of pump P1 at 100 % pump capacity.
P2 100% μl/min 870 Feed rate of pump P2 at 100 % pump capacity.
P3 100% μl/min 870 Feed rate of pump P3 at 100 % pump capacity.
P4 100% ml/min 5.6 Feed rate of pump P4 at 100 % pump capacity (optional).
EMPTY VOLUME P2 μl 220 Dead volume of pump P2 from the separation chamber to
the end of the capillary.
ADJUSTMENT
CONSTANTS
Do not change this value!
X0 0.0 Offset, value is overwritten during adjustment
KP 50 Slope, value is overwritten during adjustment
PH-CONTROL 1.00 The measuring device is equipped with automatic pH
control in the stripping vessel. You can use this parameter to
switch pH control on or off.
• 1.00 = pH control is switched on
Reading on display = TOC
• 0.00 = pH control is switched off
Reading on display = TC
PH-NOMINAL 2.5 The pH value in the stripping vessel is set here. The pH
value must be between 1 and 4 for complete stripping.
If the sample becomes excessively acidic in municipal
sewage treatment plants, there is the problem of humic acid
precipitating which could mask the carbonate. This
inorganic carbon enters the furnace and results in
excessively high readings.
PH ADJ. OFFSET 2.4 Offset of the pH sensor. The value is overwritten when the
pH sensor is adjusted.
PH ADJ. SLOPE mV/
decade
57.5 Slope of the pH sensor. The value is overwritten when the
pH sensor is adjusted.
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