Sitex SST-110 User manual
SST-110
Sea Water Temperature Gauge
I
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Backlight Intensity . . . . . . . . . . . . . . . . . . . . . . . . 7
View Water Temperature . . . . . . . . . . . . . . . . 7
View/Set Low Temperature Alarm . . . . . . . . . . . . . 8
View/Set High Temperature Alarm . . . . . . . . . . . . . 8
Arming and Disarming the Temperature Alarms . . . . . . . . . 8
View Minimum Temperature Seen Memory . . . . . . . . 9
View Maximum Temperature Seen Memory . . . . . . . 9
Reset Minimum/Maximum Temperature Seen Memory . . . 9
Calibrating Temperature. . . . . . . . . . . . . . 10
Selecting Temperature Units (Deg. F/C) . . . . . . . . 10
NMEA 0183 Sentences . . . . . . . . . . . . . . . . . . . . 10
Temperature Trend Indicators . . . . . . . . . . . . . 11
Display Unit Serial Number . . . . . . . . . . . . . . . . . . 11
Notes and Warnings . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Transducer Information . . . . . . . . . . . . . . . . . . . . . 14
2010 Si-Tex SST110AG
http://www.si-tex.com Made in New Zealand
Page 2
Introduction
Thank you for purchasing the SI-TEX SST-110 Sea Water
Temperature Indicator. Your new SST-110 represents the lat-
est in Sea Water Temperature Instrumentation available.
Whether you use your Sea Water Indicator for Sports fishing or
Commercial Fishing, the SST-110 will bring you unlimited
hours of trouble-free performance, reliability, and most impor-
tantly, good fishing!
Research has indicated that it is not as much the absolute
temperature but rather the convergence of temperature layers
which signifies the presence of fish. Various species of fish
prefer certain temperature ranges and it is desirable to start at
that point. If for example, you notice that the fish were biting at
73.40’F on Tuesday; chances are good that they will be biting
again at the same temperature at a later date. The unique
sensitivity of the SST-110 with its high resolution temperature
readout, temperature trend indicators, and temperature alarms
will allow you to actually navigate back to a point where you
had your previous strike.
When planning the installation of your SST-110 it is important
to carefully choose a location for the temperature probe/trans-
ducer that will not subject it to high levels of onboard heat such
as is found in the engine compartment. The temperature probe
is designed for extreme environmental conditions and will
provide long, dependable operation when properly installed; it
does not have the same installation considerations as a depth
transducer would have. Install the temperature probe below the
water line of the boat at a point that will not come out of the
water during normal cruising. It is not necessary to mount the
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probe perpendicular to the bottom; the probe is non directional.
Avoid mounting the probe in an area that will submerge the
inside portion of the probe in warm bilge water, or Ice water from
fish boxes. Also, avoid mounting the probe near the engine
exhaust, as this will adversely affect the overall accuracy of the
sea water temperature indication
The Si-Tex SST110 provides accurate digital instrumentation
for sea water temperature with a resolution of 0.01 degree
Fahrenheit or Celsius.
For maximum accuracy, the displayed temperature may be
calibrated using the front panel keys to compensate for slight
differences in temperature transducers.
You can set high and low temperature alarms and a temperature
trend arrow lets you know with a glance if the sea temperature is
getting warmer, cooler or constant.
Five levels of backlighting can be selected and remotely switched
ON/OFF. All setup and calibration constants are saved to a
nonvolatile memory. The SST110 outputs standard NMEA
0183 data of water temperature in Degrees F and degrees C and
works on both 12 and 24 VDC systems.
The SST110 with its large display digits draws only .035 amps
and only .055 amps with full backlighting. Both transom mount
and thru-hull mount temperature transducers are available sepa-
rately.
The SST110 works with 30Kohm temperature senders and is
fully compatible with the popular Dytek temperature probe.
Page 5
Installation
Before starting the installation, please read this entire section
first. Finger tighten the screws that mount the instrument
bracket - It is not necessary or recommended to use tools.
lDrill a 2-1/8" (55mm) mounting hole where you desire to
mount the instrument (Figure 1).
lConnect the various wires from Cable 1 and Cable 2 as
shown in Figures 2 and Figure 3.
lCarefully check all your wiring against figures 2 and 3 and
then mount the instrument in the hole. Use only finger tension
to tighten the bracket hold-down nuts
Figure 1
Page 6
Figure 3
Figure 2
BLACK: Power Ground
RED: +12/24 VDC IN
BLUE: LIGHTS On/Off
WHITE: NMEA 0183 out
Not used
MALE
To Temperature probe
I
MALE FEMALE
To Temperature probe
BLACK: Power Ground
RED: +12/24 VDC IN
BLUE: LIGHTS On/Off
WHITE: NMEA 0183 out
Operation
Key Functions
The t, :, sand Q keys are used to select what to display, set
backlight levels, calibrate temperature, set alarms and change
units of measure. New information is automatically saved to a
nonvolatile memory.
Backlight Intensity
Press :the key 1/2 second to adjust the backlight level for
night viewing. Each time you press the :key for 1/2 second
the level will get brighter 1, 2, 3, 4, OFF, 1, 2, ... etc. The blue
backlight ON/OFF control wire in cable #2 must be switched
to +12/24V for the backlights to work and offers external
backlight ON/OFF control. If ON/OFF control is not
required, connect the blue backlight ON/OFF wire to +12VDC
or +24VDC permanently.
View Sea Water Temperature
Sea Water Temperature is normally displayed except when
setting alarms or viewing Maximum Temperature Seen or
Minimum Temperature Seen memory .
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View/Set Low Temperature Alarms
To set the Low Temperature Alarm value, press the t key for
ten seconds while viewing water temperature (until you hear a
long beep). Use the t and skeys to adjust the value. Press the
: key for 1/2 second to save the new value to memory.
View/Set High Temperature Alarms
To set the High Temperature Alarm value, press the s key for
ten seconds while viewing water temperature (until you hear a
long beep). Use the t and skeys to adjust the value. Press the
: key for 1/2 second to save the new value to memory.
Arming and Disarming the Temperature Alarms
To arm (enable) the low and high temperature alarms, press the
s key for one half second while viewing water temperature.
The alarm bell symbol will be displayed. If the tempreature
drops below the Low Temperature alarm value or increases
above the High Temperature alarm value (and the alarms are
armed), then the alarm buzzer will sound and the alarm bell will
flash.
To disarm (disable) the low and high temperature alarms, press
the tkey for one half second while viewing water tempera-
ture. The alarm bell symbol will disappear.
Page 9
View Minimum Temperature Seen Memory
To view the minimum temperature seen (since last reset),
quick press both the Use the t and :keys. The t icon will
blink and after 5 second the display will revert to showing
Temperature.
View Maximum Temperature Seen Memory
To view the maximum temperature seen (since last reset),
quick press both the Use the :and s keys. The s icon will
blink and after 5 second the display will revert to showing
Temperature.
Reset Minimum/Maximum Temperature seen Memory
To reset the minimum and maximum temperature seen memo-
ries, press both the tand skeys for ten seconds while viewing
water temperature (until you hear a long beep).
Page 10
Calibrating Temperature
To calibrate the temperature value, press and hold both the s
and Q keys for ten seconds while viewing water temperature
(until you hear a long beep). Use the t and skeys to adjust the
value to read correctly. Press the : key for 1/2 second to save
the new value to memory. The t and sicons will flash while
in temperature calibration mode.
Selecting Temperature Units (Deg. F/C)
While viewing water temperature, quick press both the tand s
keys to toggle between degrees C and degrees F.
NMEA 0183 Sentences
The SST110 outputs serial data of water temperature once per
second in standard NMEA 0183 serial data format. The sen-
tences are output in the following formats:
Water temperature (Degrees C): $VWMTW,xx.xx,C*CS
Water temperature (Degrees F): $IIXDR,G,xx.xx*CS
Where CS is the NMEA 0183 checksum.
Page 11
Temperature Trend Indicators
To help you see if the sea water temperature is falling, rising or
stable the SST110 keeps track of this information and displays
an UP arrow “s ”, a down arrow “t ” or no arrow.
The sensitivity of the temperature trend indicators (how fast it
responds and the duration of its memory) is adjustable using
the front panel keys. To adjust the temperature trend indicator
sensitivity, press and hold both the t and Q keys for ten
seconds while viewing water temperature (until you hear a
long beep). Use the t and s keys to adjust the value between
0 (fast/short memory) and 200 (slow/long memory). Press the
: key for 1/2 second to save the new value to memory.
Display Unit Serial Number
To display the unit serial number, quick press both the : and Q
keys while viewing water temperature.
Page 12
Notes and Warnings
a) During calibration or setting of values, pressing and holding
down the t or s keys will cause the values to scroll faster the
longer you hold down the keys.
b) A“quickpress”is anypress ofa keyor keyslasting lessthan 1/2second.
c) A 1/2 second press can be any press longer than 1/2 second and shorter
than 2 seconds.
d) Onapplying powertot he SST110,the softwareversion isdisplayed for
two seconds (e.g. “- - 1.0”).
e) The temperature will be unstable for the first 10-15 seconds after the
power is first turned on. During this time a “U” will be displayed.
f)TheSST-110 willdisplay “-HI-” if thetemperature sensor connections
are a short circuit or too low a resistance..
g)The SST-110will display“-LO-” ifthe temperaturesensor connections
are open circuit or too high a resistance.
Page 13
Specifications
Power supply: 9.50 to 33.00 (absolute maximum)VDC, 0.045
amps nominal. Operation outside this range
can cause erratic behavior or damage.
Operating temperature: 32 to 122 F ( 0 to 50 C)
Size: 4.3" x 4.3” x 3.5” deep (110 x 110 x 89 mm).
Display Data: Water Temperature, High and Low alarms,
temperature trend arrows, alarm symbol.
Resolution: 0.01 deg Fahrenheit or Celsius.
Accuracy: Front panel adjustable.
Range: 32.00 to 99.99 deg F (0.00 to 37.77 deg C)
Transducers: Transom and thru-hull temperature transducers
available separately.
Display: 4 digit LCD, 5 levels of backlighting.
NMEA 0183 sentences: Water temperature:
(Degrees C) $VWMTW,xx.xx,C*CS
(Degrees F) $IIXDR,G,xx.xx*CS
CS=Check Sum
TransducerInformation
The SST110 temperature transducer has the following charac-
teristics:
Temperature Resistance
50.00 deg F 10.00 deg C 58.80K
59.00 deg F 15.00 deg C 46.20K
68.00 deg F 20.00 deg C 37.00K
77.00 deg F 25.00 deg C 30.00K
86.00 deg F 30.00 deg C 24.42K
Page 14
Thru-Hull Transducer
Transom Mount
Transducer
Notes
Page 15
Si-Tex Marine Electronics
25 Enterprise Zone Drive, Suite #2
Riverhead, NY 11901
Main Office: +1-631-996-2690
Fax: +1-631-996-2693
email: [email protected]
website: www.si-tex.com
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