GE PT878 user manual Measuring Thickness in Numeric Format, Display Graph Velocity Zero Material

Chapter 8. Servicing the PT878

8.4.2 Measuring Thickness in Numeric Format

To measure the actual thickness of a pipe, hold the calibrated transducer steady, press the [W] or [X] arrow key until you reach the Display tab and press [ENTER]. The T-Gauge Display option shows the thickness measurement in numeric format (displayed in Figure 109 below).

Note: Refer to Appendix D, Ultrasonic Thickness Gauge Theory of Operation, page 251, to learn how to position and align the transducer.

Thickness Gauge Measure

Display Graph Velocity Zero Material

Thickness, mm

42.71

Cancel

OK

Figure 109: Thickness Gauge Display Window

Be sure the “Noise” or “Los” (loss of signal) boxes do not appear. Press [F2] (Cancel) or [F3] (OK) to return to Operate Mode, or press the [X] arrow key to move to another window in the option.

162 Transport® Model PT878 Portable Liquid Flowmeter User’s Manual