Operation Manual

Sensors
137
850-165186 / Rev.B
Mounting
Location: Place the sensor where you wish to monitor the
height. This is normally aft of the headrope at the center of the
net.
Ensure that you mount the sensor with the reverse side (D) and
the echo sounder transducer (E) pointing towards the bottom!
The S IMRAD print on the sensor (C) must point up towards the
water surface!
Mounting: Secure the two forward
fastening lugs (A) using two snap
hooks and rope. Then, secure the two
aft fastening lugs (B) using snap
hooks and strong rubber bands. This
mounting places the sensor in a cradle
supported on all four sides.
In order to secure the sensor in place,
we recommend that you assemble a
bag of fine-meshed net, and ties this
to the trawl close to the middle of the
headrope. Then, mount the sensor
inside this bag. The sensor must be
properly secured to prevent it from
moving sideways or rotate during use.
(A) = Rope and snap hooks
(B) = Rubber bands and snap hooks
(C) = SIMRAD imprint on the sensor
must point up!
(D) = Reverse side of sensor
(E) = Echo sounder transducer must
point towards the bottom!
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.