SR MARINER
DIGITAL DEPTH METER
DDM- 1
DDM- 2
INSTALLATION INSTRUCTIONS
Congratulations in choosing a high performance marine instrument and welcome to the
growing family of SR Mariner product owners. Since our establishment in 1973, we have
engineered our products to give you quality at a reasonable price.
To familiarize yourself with all the features and installation procedures please read the
following instructions carefully.
If you still have any questions or comments please call your nearest dealer or call us at (716)
693- 5977 or write:
SR Instruments
600 Young Street
Tonawanda, NY 14150
Attn: Service Department
It is recommended that you temporarily hook up your SR MARINER equipment before
installation so that you become familiar with its connections and system performance. DO
NOT CUT ANY CABLES, but connect according to wiring diagram (fig.3). Put the transducer in a
pool of water or hang it over the side of the boat to test the system. If all functions perform
satisfactorily, proceed with installation. If the system fails to perform, check all connections. If
system still fails to perform check with your dealer for advice and/or replacement if needed.
CHARACTERISTICS OF DIGITAL DEPTH METER
MODEL FEET METERS FATHOM VISUAL ALARM
DDM- 1 2- 300 N/A .5- 50 YES
DDM- 2 N/A 1- 100 .5- 50 YES
Note: Optional audible alarms are available for meters.
INSTALLING THE DISPLAY
1. Cut a 4- 1/16" (max 4- 1/8") diameter hole in the bulkhead or instrument panel where the
display unit is to be mounted (fig.1).
2. Be sure to remove all burrs and clean the face of the bulkhead or panel with detergent to
remove all traces of dirt, oils, fingerprints, etc...
3. Each display unit is furnished with an adhesive backed sealing ring to hold the unit fast in
place and creates a watertight seal. Please note that it is not recommended that the paper
backing be removed until the system is tested and finally calibrated. When ready for final
mounting simply remove the paper backing, position unit correctly and firmly press into place.
4. Install the RETAINING RING as shown and tighten with a blade type screwdriver.
NOTE: Maximum hull thickness for thru hull fitting is 1- 1/4”
(Figure2)