Owner's manual

Table 5 Modbus Holding Registers (continued)

Address Size Type Value Description Values

4071 2 Float SOS_K_MIN

This value sets the lower limit in k-space that is used in

the SOS auto frequen

cy determination code. This value

is equal to the first k-space bin after 0: PI/deltaX/50

(there are 50 bins from 0 to PI/deltaX).

4073 2 Float SOS_K_MAX

This value sets the upper limit in k-space that is used in

the SOS auto frequen

cy determination code. This value

is equal to the last k-space bin: PI/deltaX.

4075 2 Float

SOS_SEARCH_LIMI

This value is the +/- percentage of the estimated SOS

value (calcula

ted using the auto frequency calculation

code) that determines the lower (Estimated SOS * 0.5)

and upper (Estimated SOS * 1.5) SOS search limits.

4077 2 Float

SOS_LAMBDA_DIA

METER

Used to calculate the SOS dynamic frequency maximum

use

d when calculating SOS. SOS Max Freq = (Max

SOS search) / ((Lambda Diameter * (Pipe Diameter/12)).

4079 2 Float

SENSOR_SPACING

Starting point for sensor 1. Typically 0.

4081 2 Float

SENSOR_SPACING