Tpo Measurement - Pentair HAFFMANS c-DGM Instruction Manual

Inspection template
An inspection template can be used to measure the headspace volume separately for every
sample. The liquid volume can then be read on it. If the package volume is known, the
headspace volume can also be calculated in this way. However, this method only works for
bottles.
6.2.5.2 *Performing measurement
Ensure that the correct product has been selected in the c-DGM. An ISD sampling device is
used to pass liquid from a closed product package through the c-DGM (see ISD manual for
method). As soon as the handle of the c-DGM is closed, the display will switch on as clearly
shown in the picture below:
Vhs:
PRESS
TO CONFIRM
Fig. 6.10: Confirm V
hs
The value displayed for V
adjusted per ml if desired. Pressing the "Enter" button confirms the V
measurement in the memory. This value is also used to calculate the TPO value. After the
measurement is confirmed the process continues as combined CO
do. If the value is not confirmed, the measurement will continue automatically after 30 seconds.
A TPO value will now also be shown at the end of the measurement. The display time for the
TPO can be set in the "Display times" menu (see 5.4.6).

6.2.6 *TPO measurement

The TPO is an extension of the O
can be calculated from the O
TPO value is the same as for the combined CO
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12 ml
display
is the value as set for the selected product. This value can now be
hs
measurement, as outlined in 6.2.3, whereby a TPO value
2
according to the Uhlig's method. The process to calculate this
2
, &&D E^ 'D 'D
2
/ TPO measurement.
2
and logs it with the
hs
/ O measurements usually
2
c-DGM/i-DGM