Thermo Scientific DCT6088, User Manual

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Primary Displays & Menus
The Flow Menu
The Flow menu contains additional items that are not included in the
quick setup procedure described in Chapter 4. These items are listed below.
The Flow Menu
●
Max Flow Range (31) and Min Flow Range (32) setup menus
Use these menus to enter the minimum and maximum flow values for
setting the volumetric flow range. Setting the optimum flow range
generally improves response time.
Figure 5–13. Max Flow Range setup menu
Figure 5–14. Min Flow Range setup menu
Note Whenever the pipe ID is changed, the flowmeter returns the
volumetric flow range to default settings. The default settings are the
maximum and minimum flows for the new pipe ID that occur at +32
and -32 ft/s (+9.76 and -9.76 m/s).
▲
●
Damping setup menu (33)
Use this menu to enter the value for the damping coefficient, which
suppresses short-term fluctuations in the indicated flow rate. The
displayed flow rate and the 4–20 mA current loop output is a moving
average of the last n seconds where n is the damping value. Increasing
the coefficient increases the response time to changes. The coefficient is
adjustable from 1 to 99 seconds in1-second increments. Damping
should be kept at a minimum unless the flow rate fluctuates wildly. If
this is the case, increase the damping coefficient just enough to reduce
the fluctuation to an acceptable degree.
Figure 5–15. Damping setup menu
Thermo Fisher Scientific DCT6088 User Guide 5-5