FDT-25W Wall Mounter Ultrasonic Flowmeter
Window for entering pipe wall thickness
You may skip the menu and enter inner diameter in M13 instead.
Window for entering the inner diameter of the pipe
If pipe outer diameter and wall thickness are enter correctly, the inner diameter will be
calculated automatically, thus no need to change anything in the window
Window for selecting pipe material
Standard pipe materials (no need to enter material sound speed ) include:
(0) carbon steel (1) stainless steel (2) cast iron (3) ductile iron (4) copper
(5) PVC (6) aluminum ,(7) asbestos (8) fiberglass
(9) other( need to enter material sound speed in M15)
Window for entering the pipe material speed, only for non-standard pipe materials
Window for selecting the liner material, select none for pipes without any liner.
Standard liner materials(no need to enter the liner sound speed) include:
(1) Tar Epoxy (2) Rubber (3) Mortar (4) Polypropylene (5) Polystryol (6)Polystyrene
(7) Polyester (8) Polyethylene (9) Ebonite (10) Teflon
(11) Other (need to enter liner sound speed in M17)
Window for entering the non-standard liner material speed.
Window for entering the liner thickness, if there is a liner
Window for entering the ABS thickness of the inside wall of the pipe
Window for selecting fluid type
Window for entering the sound speed of non- standard liquid, used only when option item 8
‘Other’ is selected in M20
Window for entering the viscosity of the non-standard liquids, used only when option item 8
‘Other’ is selected in M20
Window for selecting transducer type
Window for selecting the transducer mounting methods
Four methods can be selected:
(0) V-method (1) Z-method (2) N-method (3) W-method
Display the transducer mounting spacing or distance
(1) A switch for the parameters in flash memory will be loaded when power is turned on. The
default option is that the parameters will be loaded. If this switch is not turned on, the
system will try to use the parameters in the system RAM, if these parameters are ok,
otherwise the system will load the parameters in flash memory
(2) Function to store the current parameters into the flash memory, so that these parameters
will be solidified and will be loaded as the default parameters every time when power is
turned on.
Entry to store to or restore from the internal Flash memory, as many as 9 different pipe
parameter configurations
To save or load the current setup parameter, use the going up or going down keys to change
the address number, press ‘ENT’ key, and use going down or going up keys to select to save to
or load from the memory.
Entry to determine whether or not to hold (or to keep) the last good value when poor signal
condition occurs. YES is the default setup.
Entry to setup empty signal threshold. When the signal is less than this threshold, the pipe is
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