Garnet SeeLevel 710-JS User manual

Page 1SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
HOLDING TANK MONITOR
710-JS-ES-SS Manual_v1.0 - 05-Jul-2022
WCAUTION: explains safety information that could cause
damage to the product, including data loss.
WWARNING: explains dangers that might result in
personal injury or death.
WNOTE: expands on information for any procedures.
SAFETY SYMBOLS INFORMATION
CANADA
Garnet Instruments
286 Kaska Road
Sherwood Park, AB T8A 4G7
USA
Garnet US Inc.
5360 Old Granbury Road
Granbury, TX 76049
SENDER MANUAL
710-JS | 710-ES | 710-SS
The SeeLeveL Senders 710-JS, 710-ES, 710-SS are used with SeeLeveL II
Tank Monitoring systems that can monitor either two, three or four tanks.
The 710-JS sender is 6" high (not including tabs) and has a resolution of
1/4". This model can measure tanks from 5" to 7.5" high tanks and cannot
be stacked. The higher resolution is optimal for low-prole tanks.
The 710-ES sender is 12" high (not including tabs) with a resolution of 3/8"
and can measure tanks from 5.5" to 14" high with a single sender, and up
to 26" with double-stacked senders.
The 710-SS sender is 16" high (not including tabs) and has a resolution
of 1/2". This model can measure tanks from 7" to 18" high with a single
sender, and up to 34.5" with double-stacked senders.
The senders are mounted on the outside of the holding tanks and can
be stacked to t taller tanks. They work on most plastic or polyethylene
holding tanks that contain water-soluble uids. They are not compatible
with metal holding tanks.
See more information about sender lengths on page 3.
The communication protocol used between our senders and displays is
proprietary allowing us to control the accuracy and functionality of our
systems ensuring our customers experience reliable operation.
INTRODUCTION

Page 2SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
DETERMINE BEST CONFIGURATION & LOCATION
Tools and equipment required:
□Wire cutters/stripper
□Wire crimper
□Scissors or hole punch
□Acetone/rubbing alcohol
□Duct tape or tie-wraps for securing wires
□Non aggressive tape (painters, masking)
□Electrical tape
□Butt connectors
INSTALLATION INFORMATION
The installation for the complete system consists of mounting the display
inside the RV, cutting and mounting the senders to the sides of the tanks,
connecting the wiring, and programming the display.
This manual provides information on how to install the SeeLeveL 710-JS,
710-ES, and 710-SS senders.
Before senders are installed the display should be installed rst.
Refer to the Display Installation Guide and User Manual for the model
you've purchased for all installation and connection details. Manuals can
be found at our online Resource Library from our website at:
http://https://www.garnetinstruments.com/holding-tanks-resource-library/
WCAUTION: 710-JS Senders cannot be double-stacked.
DO NOT mix sender types when stacking senders.
The senders will need to have a at area on the side of the tank large
enough so the whole width of the sender is in contact with the side of the
tank.
Make sure that any metal is at least 1” away from either side, top and
bottom of the sender, and at least 2” away from the face of the sender.
Some tanks may have
irregular shapes. DO NOT
wrap the corners over the top
or bottom of the tank.
See placement examples to
the right.
WCAUTION: Bending the
sender sharply will damage the
circuit on the sender.
Sender Placement
Tank
Height
Sender Options
Best Resolution Other Possible
5” - 5.5" 710-JS single -
5.5” - 7” 710-JS single 710-ES single
7” - 13” 710-ES single 710-SS single
13” - 17” 710-ES stacked 710-SS single
17” - 25” 710-ES stacked 710-SS stacked
25” - 33” 710-SS stacked -
To determine which sender conguration you need, measure the height of
your tanks, then nd out the measurable space (see following page). The
measurable space is the “ideal” position of the sender on the tank. This
will determine what length the senders should be. If a sender is too long,
it will need to be cut. The following table has recommended senders and
congurations for various tank heights.
Sender Conguration
WNOTE: The new 710-AR, 710-ES2 can be combined with old sender models 710-ES,
710-JS, 710-SS.

Page 3SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
DETERMINE MEASURABLE SPACE ON TANKS
gap
gap
gap
gap
gap
Measure the height of the tank from top to bottom then determine
measurable space.
• The minimum gap is 1/4", however, we recommend that the
senders be installed 1/2" from the top and 1/2" from the bottom
of the tank. Depending on the characteristics of the tank the gap
can be a little more or less (see note below and installation tips
on page 12). This gap ensures that the sender can read properly
through the tank wall as the corners or rounded edges of the tanks
can be too thick for the sender to read through.
• Subtract the gap space from the overall tank height. This will result
in your measurable space. Use the calculation formula at the right.
Measurable
Space
Tank Height
1/2” gap
WNOTE: If senders do not t full height of the tank, to
optimize the level you can justify sender location to be
either closer to the top or bottom, depending on the type
of liquid (Fresh or Grey/Black).
FRESH = closer to bottom as it is preferable that this tank is
not empty!
GREY/BLACK = closer to top as it is preferable that these
tanks are not full!
WNOTE: This is not a static formula that can be used on every tank. With some fresh
tanks, the outlet for the pump feed may sit more than 1 inch above the bottom of the
tank. Your water pump may begin to suck air before the tank is completely empty. In
these cases, you want to install the fresh tank sender above the outlet for the pump
feed. This will ensure that the monitor reads “0” before the pump begins to suck air. WNOTE: Both senders in a double-stacked
conguration should be approximately the same length.
WCAUTION: Installing a sender outside of the recommended measurable space
may aect your readings.
Find Measurable Space
WNOTE: Although
the recommended
gap at the top and
bottom of the tank
is 1/2" the minimum
gap can be 1/4".
The maximum gap
for the 710-JS is 3/4",
the 710-ES is 1", and
the 710-SS is 1.25".
See recommended
sender options table
on page 2.
Stacked conguration
Two senders may be required for taller tanks and
additional senders may be purchased for this
application. There needs to be a gap of 1/16”
to 1/8” between the double stacked senders.
Calculate what the total length of measurable
space for both senders will be:
1. Measure the height of the tank.
2. Tank height = ______________
3. Calculate the recommended measurable space
4. Tank height −top gap −bottom gap −middle
gap =measurable space. *See note regarding
gap recommendations.\\\
Single conguration
1. Measure the height of the tank.
2. Tank height = ______________
3. Calculate the recommended measurable
space as follows:
Tank height −top gap −bottom gap =
measurable space. *See note regarding gap
recommendations.
1/2” gap

Page 4SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
710-JS Sender
2"
6"
SENDER SPECIFICATIONS
710-ES Sender
2"
12"
Blue
signal wire
Black
ground wire
Continuous
pad
Segmented
pads
710-SS Sender
2"
16"
Segmented
pads
Segmented
pads
Continuous
pad
Continuous
pad

Page 5SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
CUTTING SENDERS
The senders need to be cut to the required length to match the height of
the measurable space of the tank.
The cut must be between the sender segmented pads. Senders have a
minimum length they can be cut. The minimum length for the 710-ES and
710-SS is after the rst three segmented pads and the 710-JS minimum is
four segmented pads. Once this has been determined, cut the sender with
a pair of scissors.
3 pad
Minimum
length
Only cut
between
pads
PROGRAMMING THE SENDERS
Senders are programmed by cutting o the tabs at the top of each sender
to tell it which tank it will be mounted on, or if in a stacked conguration,
whether they are on the top or bottom. A pair of scissors or a hole punch
can be used to cut the sender tabs.
The senders can be programmed for FRESH, GREY, BLACK, and GALLEY
tanks. The tabs are labeled at the top to show you which tab or tabs to
cut for which tanks. Cut the middle tab labeled "TOP" for double-stacking
senders (top sender only).
TANK TYPE TABS TO CUT
FRESH No tab cut
GREY GRY
BLACK BLK
GALLEY GRY + TOP
FRESH TOP TOP
GREY TOP GRY + TOP
BLACK TOP BLK + TOP
GALLEY TOP see note
For examples of programming for each tank types refer to the table
at the bottom and the illustrations on the next page.
TABS
GRY BLKTOP
GBC TC
WNOTE: For systems that have a Galley
button. Cut the GRY and the TOP tabs. The
GALLEY and the GREY tanks can only have one
sender, so no programming is possible for the
number of senders.
4 pad
Minimum
length
Only cut
between
pads
710-ES & 710-SS
710-JS

Page 6SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
PROGRAMMING THE SENDERS 710-ES AND 710-SS
FRESH
Senders tabs to cut for single sender or bottom sender if double-stacked.
GREY
GRY
BLACK
BLK
For a double-stacked tank conguration, the top sender requires an additional tab to be cut.
GALLEY
GRY TOP
FRESH TOP GREY TOP
GRY
BLACK TOP
BLKTOP TOP TOP
Examples for correcting cuts made in error.
FRESH TOP
TOP
(GRY or BLK tab cut by mistake)
GRY BLK
GREY SINGLE
OR BOTTOM
BLK
(BLK tab cut by mistake)
FRESH SINGLE
OR BOTTOM
TOP
(TOP tab cut by mistake)
No Tabs cut
WCAUTION: TABS CUT IN ERROR
If the “GRY” tab has been removed and it should be a black
tank sender, or if the “BLK” tab has been removed and it should
be a grey tank sender, then cut out the recessed grey-black
correction tab that says “GBC” next to it. This reverses the eect
of the grey and black tabs.
If either the “GRY” or “BLK” tabs have been removed and it
should be for a fresh tank, then remove the other “GRY” or
“BLK” tab. When both the “GRY” and “BLK” tabs are removed, it
becomes a fresh tank sender.
WNOTE: For systems that have a
Galley button. Cut the GRY and the TOP
tabs. The GALLEY and the GREY tanks can
only have one sender, so no programming
is possible for the number of senders.

Page 7SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
FRESH
Senders tabs to cut for single senders.
GREY
GRY
BLACK
BLK
No Tabs cut
GALLEY
(4-Tank systems)
GRY ALT
Examples for correcting cuts made in error.
FRESH
(GRY or BLK tab cut by mistake)
GRY BLK
GRY BLKALT
PROGRAMMING THE SENDER 710-JS
710-JS Sender Tabs
WCAUTION: 710-JS Senders cannot be double-stacked.

Page 8SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
PREPARE SENDER FOR INSTALLATION
❶Clean the tank
Clean area throughly where the sender will be
mounted making sure there is no dust, grease
and oil.
Acetone or rubbing alcohol will remove sticky
residue. Once the sender is cut and programmed, temporarily tape the sender
to the tank wall. Place a piece along the length of both sides of the
sender and perform a test to verify operation.
❷
WCAUTION: Route wires to the right, away
from the senders. The wires indicate the top
of the sender.
WCAUTION: DO NOT SKIP THE FOLLOWING STEPS. Removing the sender
from the tank after the sender has been permanently installed will cause damage
to the sender that is NOT covered under warranty.
Use a non aggressive
tape like painters tape
or masking tape.
Temporarily tape sender on tank

Page 9SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
WIRING THE SENDER
❸Connect the wiring to the pigtail
The following diagram shows the wiring from the sender to the display pigtail. Other wiring
connections may apply for each display model. All wiring diagrams are available on the website.
GROUND
TO
+12V POWER
TO PUMP
INDICATOR
PIGTAIL
HARNESS
GALLEY BLACK GREY
FRESH STACKED
WCAUTION: It is very important that the display
and senders have the same ground. Make sure the
sender ground connection is connected back to the
display ground or breaker panel ground.
WCAUTION: Wires are to be routed to the RIGHT
side of the sender, away from the sender. Never
route the wires to the left of the sender. If they
drape over the sender they could aect the reading.
Example of stacked
sender wiring

Page 10SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
❹Verify operation before permanently sticking the sender to the tank.
Tank levels operation test
For the initial test, have the tank at least 1/4 full of
water or sewage.
Verify that the percent level reading on the display
panel looks correct.
Signal strength test
The signal power is an indication of how much
signal is being transmitted through the tank wall
and picked up by the receiver part of the sender.
Typical signal power should be 50% to 60%. The
gauge will work with minimum signal strength as
low as 20%, but it is good to have at least 50% to
60% at installation so that there is some margin
available for buildup in the tank. P00 = 100%.
FRESH
LEVEL IN PERCENT
2 5
.
.
SENDER TEST

Page 11SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
Once proper operation has been conrmed,
the sender will be ready to permanently
stick to the tank wall.
Remove one side of the tape.
Permanently adhere sender to the tank
Fold the sender over so it is still attached
with one side of the tape.
Carefully fold the sender back and press the
sender down to the tank so that all of the
adhesive is contacting the tank wall. Make
sure there are no air gaps between the sender
and the tank. Remove the other side of the
temporary tape.
Slowly peel the backing paper o the
adhesive.
Secure the wires
❻
Secure the wires with duct tape, tie wraps, or
something similar so that the wires do not rattle or
press against the sender, this may result in sender
damage or wires breaking over time.
Apply undercoating to the senders
On installations where the holding tank is exposed
to under chassis road spray and ying rocks etc. We
recommend the use of a rubberized undercoating.
Recommended brands:
3M 03584 Professional Grade Rubberized Undercoating
Gravel Guard Rocker Guard Coating By Dominion Sure Seal
❼
MOUNTING THE SENDER
WCAUTION: Be careful not to bend the senders excessively or you
could damage the circuits. You only have one shot at this. If you try
to peel it o the tank once it is stuck the sender may be damaged
by the sharp bending. Removing the sender after it's been adhered
voids the warranty.
❺

Page 12SeeLeveL Sender Installation Manual 710-JS / 710-ES / 710-SS
INSTALLATION TIPS