Geometrics Inc. G-882 Cesium Marine Magnetometer Page
The connector that should be connected to the tow cable is the same as the
wet end of the tow cable shown in Figures 48 and 49. This end should be
mated with the dry end of the tow cable. Prepare these connectors for
installation by insuring that the connectors on the tow cable and the adapter
cable are clean and free of dirt. Using a finger, wipe a small amount of silicon
grease across the face of the connector of the adapter cable. If this is done
properly, there will be a “half moon” of grease visible in each of the pin sockets
of this connector. The correct silicon grease is provided in a small circular,
snap-lid container in the ship kit. Unless it is cleaned, once greased this
connector may never require grease again.
The connector shown in Figure 54 is the DC power connector on the AC/DC
power supply. The connector in Figure 54 is a Bendix connector. It mates with
the connector labeled 22-32 VDC on the DC/Data Junction Box. Figure 54
shows the pin numbers for the Bendix connector.
5.2 O-ring Maintenance
The O-rings do not require maintenance. Unless the a bulkhead is removed
from the magnetometer fish, the O-rings do not require maintenance.
Geometrics does not recommend the customer open the magnetometer fish
under any circumstances. There are no customer maintainable parts within.
Should the customer inadvertently remove a bulkhead or do so under
instructions from Geometrics, the following procedure should be observed to
re-install the bulkhead.
Remove the two O-rings from their grooves on the bulkhead. Using a clean
towel, clean any contaminants that may be observed on the barrel of the
bulkhead or in the O-ring grooves. Inspect the inside of the magnetometer fish
from where the bulkhead was removed. Clean any contaminants that may be
observed.
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