Skipper DL850-270 User manual

The DL850-270(D)
SAM-4682/3 (RevB)
Doppler Log
Getting started
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Getting started with the DL850-270
This guide is a compressed version of the
information found in the manuals ‘DL850
Operation and Installation Manual’, and
‘100mm Gate Valve for DL850 Operation and
installation manual’
The diagrams can be found in greater detail in
these manuals.
The system comprises of 4 sections:
•The bridge unit
•The transceiver
•The transducer
•Cabling
The Unit is supplied with terminated cable for
the transducer, and yard stock cable can be used
for the longer transceiver – bridge section
(individually screened twisted pair).
Alternatively, this cable can also be provided by
Skipper part nr ZZK-01011.
Mounting the bridge unit
1. The bridge unit is mounted in or near
the bridge, allowing a space for the air
to escape at the back of the cabinet
(>10mm). The bridge unit will accept
24VDC or 115/230V AC. Power
cables are not provided.
2. Mount the unit using the 3 screws on
the rear (provided) or using the
skipper bracket ordered separately
part nr ZZA-01125 (photo),
alternatively a flush mount bracket
can be ordered ZOA01042. Open the
cabinet, using a Phillips (cross)
screwdriver. Screw the power lines to
the appropriate terminals pt1 or pt 2
(or both). If AC is used, select the correct voltage
using connecter pt 3 or pt 4 (unit supplied in
230V position)
Point 6
Earthing
Point 4
230V Point 3
115V
Point 1
DC Point 2
AC
Point 5
switches
3. Ground the unit to ship ground using the grounding terminal (pt 6)

4. The unit is now ready to test. Turn on the appropriate power switch(es) pt 5.
Press a button on the front panel. The unit will start and the display (with no
data) will be displayed.
Note: The factory default has brightness low and night picture and may need adjusting
to be seen in bright sunlight.
Mounting the Transceiver.
LED A
Power
1. Mount the unit on a solid wall. (The
unit weighs 17 kg). Ground the unit via
the bolts or with a cable to the ships
ground. Route power to the unit
(mains/24DC or both, The unit needs at
least 60W at peak.)
2. Turning on the power with no cabling
will not damage the unit, LED A
should light.
(8-10mm bolts are needed to mount the unit to
the wall, not supplied)
Installing the Gate valve (See separate manuals for full
details) SB-100-Manual and DB-100-Manual.

Installing the Combo Tank and DL270 sensor in Tank. (See separate manual for
full details) ComboTankInstManual.

Cabling
The transducer cable should be routed to the transceiver box. Any excess cable should
be coiled in an area with little electrical noise (i.e. not next to a motor or generator).
Cables are 40m long as standard.
The transceiver end of the cable is colour coded, and the transceiver screw terminals
J503 and J502 are also colour coded. Attach the cables as per diagram p 62 operator
and installation manual
The cable from the transceiver box to the deck unit is connected as per diagram
below. This cable transmits large quantities of data so should be routed away from
potential noise sources. This cable is RS 422 with handshaking and should not be
effected by anything but extreme noise.
(See page 61 of Operator and installation manual)

Interfacing and connecting the NMEA outputs
This is documented in the Operation and installation manual on page 43
If the docking options are required, connect the gyro NMEA input set to ROT signal
to one of the comports. The pin numbers for each comport can be seen on the NMEA
screen on the unit. Standard docking units have 2 comports, and will accept both ROT
(required) and GPS (optional)
Operational Check
CARE: The system should ideally not be powered in air, if however you wish to
check the system, the transmit wires can be disconnected, and the unit will operate.
See page 62, J503 pins 1-15 (1 on the right) The unit will operate for up to 10 minutes
in air, but must then be allowed to cool for at least 30 minutes.
Calibration of the system
This is documented in the DL850 operation and installation manual page 50