Thermo Scientific DCT6088, User Manual

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Primary Displays & Menus
The Calibration Menu
The best method of zeroing the instrument is to stop the flow and perform
a zero flow set on the pipe. The purpose of the zero flow set is to zero the
instrument for the individual application. This method is used only when
flow in the pipe can be stopped. The flow rate displayed in the
Flow/Velocity primary display (01) must be between -0.25 and+0.25 ft/s
(-0.076 and +0.076 m/s).
Zero Flow Set Method
1. Ensure there is no flow in the pipe.
2. Access the Zero Set menu (51).
Figure 5–38.
3. Select No Flow . If the zero flow set calibration is successful, Figure
5–39 is displayed. If the flow rate is too high to perform a zero flow set
calibration, Figure 5–40 is displayed. In this case, continue to step 4.
Figure 5–39. Zero set calibration successful
Figure 5–40. Zero set calibration failed
4. If Figure 5–40 is displayed, press any key and repeat steps 1 through 3
when the flow rate is within required limits.
5-14 DCT6088 User Guide Thermo Fisher Scientific