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Entering Special Transducer Pipe Parameters A-13

December 2003

Entering Parameters for Wetted Transducers (cont.)

4W. Entering the Time Delay

Tw, the time delay, is actually the time the transducer signal

spends travelling through the transducer and cable. This time

must be taken into consideration since the TransPort calculates

the flow rate by subtracting the time of the upstream and

downstream signals. Therefore, the time delay must be subtracted

out for an accurate measurement.

Use the numeric keys to enter the time delay (in microseconds).

The time delay is supplied by GE Panametrics on a sheet of paper

inside the transducer case. Press [ENT].

5W. Entering the Outside Diameter of the Pipe

If you do not know the outside diameter of your pipe, you can

measure it, or Sound Speeds and Pipe Size Data contains some

standard pipe sizes with their corresponding outside diameters.

To enter the outside diameter:

1. Press the appropriate feature key to select the units.

2. Use the numeric keys to enter the outside diameter. Press

[ENT].

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