T
HERMO
F
ISHER
S
CIENTIFIC
S
S
S
S
S
ECTION
ECTION
ECTION
ECTION
ECTION
4
4
4
4
4
S
CREENS
AND
S
ETTINGS
O
PERATING
G
UIDE
, TEOM 1405
4-13
The Flows screen (Figure 4-11) offers access to the flow rates and flow
controls of the unit.
Select the
Flow Rates
button to view or adjust the instrument’s flow rates.
Select the
Flow Control
button to view or adjust the units standard
temperature and pressure settings or select active or passive flow control.
The TEOM 1405 Monitor uses mass flow controllers to ensure a constant
and precise flow through the instrument. The mass flow controllers use the
actual (
active
volumetric flow control setting) or average (
passive
volumetric
flow control setting) temperature and pressure values to regulate the
volumetric flow through the system. The active volumetric flow control
setting directs the unit to use the actual ambient temperature and pressure
to regulate the volumetric flow through the system. The passive volumetric
flow control setting directs the unit to use the average temperature and
pressure values to regulate the volumetric flow through the system. Refer
to the following sections for information on setting flow rates and flow
controls.
Figure 4-11.
Figure 4-11.
Figure 4-11.
Figure 4-11.
Figure 4-11.
Flows screen.
Flows Screen
Flows Screen
Flows Screen
Flows Screen
Flows Screen
Содержание TEOM 1405
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