Pentair HAFFMANS i-DGM - Page 33

HAFFMANS c-DGM/i-DGM
c-DGM/i-DGM Page 33 of 78
6.2.1 *Combined CO
2
/ O
2
measurement
During the combined CO
2
/ O
2
measurement, the c-DGM carries out the following process
steps: oxygen measurement, display of the measured O
2
value, electrolysis, pause for
stabilization of the CO
2
equilibrium pressure and temperature, display of the measured
temperature, display of the measured pressure, and display of the measured CO
2
content. The
process steps are briefly summarized in Fig. 6.4.
Measurement process
*O
2
current
(1)
1
0
*Measure O
2
1
0
*Display O
2
1
0
Electrolysis 1
0
CO
2
stabilization 1
0
Display T 1
0
Display P 1
0
Display CO
2
1
0
0 1* 2 3 4 5 6 7 8
Process duration 60* 5 1 21 5 5 15
112 Seconds
(1)
This process step only occurs if the >ENTER< button is pressed.
Fig. 6.4 Process steps of measurement process
The electrolysis time and CO
2
-stabilization time per product can be set in the menu “CO
2
formula/Prod.Def.” (sections 5.5.3 and 5.5.4), while the display times for oxygen content,
temperature, pressure and CO
2
content can be set in the “Display times” menu (section 5.4.6).
Before the measurement, the product-specific parameters can be set in the “Product choice”
menu (see section 6.5).