GE Panametrics GF868 Programming Manual page 36

Setting Signal Limits
(cont.)
Programming Site Data
17.Press [ENT] to accept the current R WINDOW (cycles) value or
enter a new value and press
IMPORTANT: Consult the factory before performing this step.
Normally, the Model GF868 calculates the size of the receive window
based on pipe size and fluid sound speed. However, for special
diagnostic purposes, it may sometimes be necessary to reset the
window size. The default value for this parameter is 10 and values
from 10 to 128 are acceptable.
After completing these steps, the program returns to the
window.
.
[ENT]
March 2003
SETUP
1-27