Operation Manual

Display modes

850-165186 / Rev.B

Spread presentation

The Spread sensor presentation is shown below.

(A) The character and the number identifies the type of sensor,

and which identification number the sensor has on the PI54

system. In this example, S3 means that it is a spread sensor, and

that it is sensor no.3.

(B) Unit of measure. [m] means meter, [ft] means feet, [fm]

means fathoms and [pb] means braccia.

(D) Increasing or decreasing distance speed of the trawl door

distance shown in units per minute. The two arrows (E) are used

to indicate if the distance is increasing or decreasing. If the

distance is constant and the speed is 0, the arr ows are removed.

(E) Distance increasing/decreasing indicators. If the two arrows

point away from each other (as shown in the example), the

distance is increasing.

(F) Graphic alarm. The direction of the triangle indicates if the

trawl door distance should be increased or decreased with regard

to the selected alarm limits. If requested, this graphic alarm may

be accompanied with an audible alarms.

(G) Yellow pulse lamp blinks each time a signal is received

from the corresponding sensor.

(H) Interference warning, activated when the PI54 detects

interference from other nearby vessel(s) operating on the same

channel or with similar hydroacoustic equipment. Contact your

Simrad dealer to select a different frequency should this

problem persist.