GE PT878GC User Manual download pdf (Page 70)

Programming Site Data 4-9

April 2004

Entering Pipe Parameters (cont.)

2. At this point, the program follows one of two paths:

a. If you have selected a preprogrammed material, the

PT878GC automatically supplies the correct sound speed,

and proceeds to step 3.

b. If you have selected “Other,” the meter prompts you to

enter the sound speed. Use the numeric keys to type the

known sound speed in the text box, and press

[ENTER] to

confirm the choice.

3. At this point, two alternatives are available. At the Diameter

prompt, the meter asks for the pipe outside diameter and

thickness. But if you have selected certain pipe materials

(carbon or stainless steel, cast iron, PVC and CPVC), you

have the option of entering the pipe dimensions by a

standardized schedule. Once you enter the nominal pipe size

and schedule identification, the PT878GC determines the OD

and wall thickness from an internal table.

If you select a material that uses the Diameter alternative:

a. You must select from two choices, outside diameter or

circumference.

• The prompt moves to the OD (outside diameter) text box.

Type the pipe OD (in mm or in.) into the text box, and press

[ENTER] to confirm the choice, or

• Move the prompt to the OD X PI (circumference) text box.

Type the circumference (in mm or in.) into the box, and

press

[ENTER] to confirm your choice.

b. In either case, the next prompt asks for the wall thickness.

Type the value (in mm or in.) into the box, and press

[ENTER] to confirm your choice

Note: The measurement units shown depend on the choices you

have made in the English/Metric window of the Meter

menu.

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GE PT878GC User Manual Page 70