Operation Manual

Simrad PI54
110
850-165186 / Rev.B
Set up: Correct f unction requires that the length of the stay (F)
and the detection chain (G) are trimmed with regard to each
other and the gear in use. Standard delivery includes a 63 cm
stay and 39 cm detection chain for use with 14 to 16 inch
bobbins or rock hoppers (C).
(A) = Attachment ring for the
stay seized securely underneath
the footrope
(B) = Penetration ring for the
detection wire
(C) = Rock hopper, bobbins etc.
(D) = End link
(E) = Detection wire
(F) = Stay
(G) = Detection chain
(H) = Weight ~ 5.5 kg
(J) = Weight and stay hang
freely.
(K) = B ottom
(L) = A ngle approximately 25°
Adjustment: Lay the sensor on an elevated surface. Adjust the
length of the detection chain (G) as necessary. Observe detection
wire (E) movement while simulating bottom contact by raising
the weight. Tilt the weight approximately 25° to compensate for
drag forces when towed through the water, and adjust the stay
length to be taut. To avoid damage, remove the weight before
coiling the gear on the drum.
Note: The sensor’s detection wire must always be allowed to pass
freely through the center of the penetration ring when it is
deployed. Attach the rubber straps so that the sensor is held
horizontally during towing.
Sacrificial water switch sensor
If the water switch on your sensor is a sacrificial brass screw,
this screw must be checked every month. Whenever required
due to wear and tear, the screw must be replaced. Refer to the
Operational procedures in the operator manual.