FM Marin Gobius 4 User manual

Document
release 5.12, July 2017
Gobius 4 for Waste Holding Tanks, new version 5.0
Installation Guide
Before you begin
1.
Please make surethat no part is missing. 3 sensors, 1 panel,
1 control unit, 1 3M cleaning towel, 1 Velcro fastening for the
control unit, cables, 1 extrasensortape (3M VHB 4932), warranty
statementand installation instruction on how to attach the
s ensor s .
2. Determinethe best
places (¼-, ½- and ¾-level) on yourtank to
place the sensors and where to place the panel.
3. Determinethe best
way to safely access electricity from y our
battery 12/24 Volts.
Quick installation
Attachthe
sensors to the tank
Connect all parts
StartGobius
Calibrate
Test Gobius
R ea d y
Attaching the sensors to the tank
Startby reading through the green document before attaching the
sensorsto the tank wall. Please visit www.gobius.se for latest news. There
is also Tank Calculator for making it easier for you to calculate the right
levels to put the sensorson the tank wa ll .
Connect all parts
1. Decide
where to place the Gobius panel. It can for instance be
installed in your head/shower or near your waste holding tank.
You may increase the length of the panel cable up to 50m witha
standardPC networkCat 5 cable.
2. We
suggest that you make a small rectangle hole where you want
to place the cable from the panel to the control unit. The hole
should be at least 4 mm x 22mm. Please seethe enclosed hole
template at page 5.
3. Usethe pre-attached 3M adhesive to fastenthe panel to the wall.
4. Connect the panel and the sensorsto the control unit.Then
connect the cable to the battery. Make sureto connect + and –
correctly to the battery (+ iswhite/grey marked and –isblack),
FM Marin AB
Ljungåsvägen 2 Phone [phone]
302 91 Halmstad [e-mail]
Sweden www.gobius.se

2
as
also described on the control unit. Please seethe illustration at
page 5.
5. If
you want to connect Gobius to an external display from VDO,
Wema, Faria or others, you should use the analogue output on
the control unit together with the enclosed black c a ble .
Start Gobius
Connect powersource cable to the control unit. Then as Gobius is
starting all lamps are lit, one after another,once. Finally the red , yellow
and green lamps will light saying that youhaveconnected all parts
correct.Now you only haveto do the calibration.
Calibration
No tanksare the same; there are always differences in e.g. material, size,
thickness, constructionand age. In order to compensate for these
differences youhaveto calibrate the system before you can start to use
yourGobius. To start the calibration, start by making sure that yourtank
is completely empty. During the measuring you may hear a soft
humming sound from eachof the sensors.
Calibration during installation
1. Startby draining the tank
2. StartGobius and wait for the red, yellow and green l igh ts
3. Pressand hold the button until all 4 lights areon
4. Release the button as soon as the lights are on
5. The calibration starts a utom a tica lly
6. Whenthe blue light ison the calibration isdone
Calibration at a later date
1. Startby draining the tank
2. WhenGobius is on, press the button and hold
3. Wait until all 4 lights are on
4. Once the lights areon, release the button
5. The calibration starts a utom a tica lly
6. Whenthe blue light ison the calibration isdone
Test Gobius
If possible, please finalize the installation by refilling the tank withliquid
to verify that Gobius works according to yourrequirements.
2 different ways of turning Gobius on and off
Youstart Gobius bya quick push on the panel’s button or by

3
switching on the power from an external source. A function control on
lamps and sensors is immediately performed. When the control is done
the level is measured and the correct lampislit.
Youturn off Gobius bya
quick push on the button or by switching
off the current from an external source. When Gobius is turned off it
w ill memorize all settings and the calibration. I.e. you will not need to
redo the calibration due to the power being turned off for a lengthy
period of time.
Error
If there should be a problem withone of the sensors, eitherwiththe
connection or with the sensor itself, this is illustrated bythe responding
lampon the panel showing a flashing light togetherwiththe blue lamp.
For further information, please seethe “tableof lights” at pages 6 and 7.
Youmust act on this be fo r e you can use Gobius.
If you suspect that the system does not function correctly, please c o nta ct our support
service by e m ail, [e-mail] or by phone. This support service is free o f
charge for products that are registered on our web-site, www .f mm a ri n. se .
Change of default settings
You will find the default settings of Gobius on page 6 of this
documentation. Y ou ch a n ge the s ettings by pres s ing a nd holding the
button on the panel. Gobius automatically flicks through the alternatives as
presentedin the table on page 6. Release the button when your choice i s
shown. Thereby you have madea new setting. Repeat this until you have
madethe changes you want.
1.
Leave Gobius on
2. Witha pen, make notes in the tableof the changes you need to do
3. Pressand hold the button until the chosen row s ’ colours are
shown in the pa ne l
4. Release the button to make your choice a setting
5. Repeat this until you havemadethe changes you want
By keeping the button pressed until all alternatives are passed, you
may flick through all alternatives without making any change of settings.
A wrongly chosen setting iscorrectedby repeating the procedureand
thus correcting the setting.
Settings control
Each and every time youturn off Gobius using the button, your
s ettings arepresented bycolour combinations on the panel according to
the ta ble on page 6. This will not happen when you turn off Gobius
from an external source.

4
Analog instrument
It is possible to plug in an analog instrumentto showthe tank level. In
the tableon page 6 you will find four alternatives to choose between.
On page 8 you will find an illustration showing how to plug in the
instrument to Gobiu s ’ control unit. The extra black cable is intended for
this purpose. We assume that you have an instrumentwith cables already
installed in your vessel and that you wish to use this withGobius.
Extra lamp/buzzer
In addition to the Gobius panel you may wantto plug in a lampor
buzzer to give a warning when the tank is ¾ full. You may also want t o
know when the tank is empty. The illustration on page 8 showshow to
plug in this additional surveillance.
Tips
Werecommendthat youput a layer of Vaseline, which prevents
oxidation, on the plugs that areconnectedto the control unit.The
electronics of the product areprotected from damp. The sensors and the
control unit do not resist water. Please contact FM Marin for advise on
how to make Gobius waterproof. Furthermore, we recommend that y ou
connect your Gobius via a 500 mA fuse.
The
sensors areset to detect liquid levels through tank walls that areof
different materials and thicknesses. If the tank’s wall thickness is
changing overtime (e.g. due to possible contamination), you may need
to redo the calibration according to the aboveinstructions.
Gobius Sensor Technology (patented)
Each sensor consists of two active p a rt s ; a shaker and an accelerator.
Whenthe shaker creates a vibration in the tank wall, the accelerator
measures the size of the vibration and passes the dataon to the control
unit. The control unit then starts to calculate in order to give an exact
estimate of whetherthe liquid level has passed the sensoror not.
Gobius requires no extra maintenance
The constructionof Gobius has many advantages. For instance, since
the sensors areneverin directcontact with liquid inside the tank, the y
will not becomeworn out. Another positive aspect of Gobius isits
low electricityconsumption, which is less than 50 mA (12 Volts).
Gobius does not require any extra maintenance.
For all these tank materials and tank wall thickness
Stainless steel, steel, 1 - 3 mm
Aluminium, 2 –5 mm
Polyethylene, 4 –12mm
Fibre Glass, 4 –8 mm

5
System Illustration
Plug from control unit to the panel
(If you connect the panel cable wrong way the
red lamp on the panel will constantly light.
It will not damage the product.)
Attaching sensors to the tank

6
Lamp
Red
Lamp
Yellow
Lamp
Green
Lamp
B lu e
Explanation
●
●
●
○
At delivery
Gobius is not yet calibrated
○
○
☼
☼
When starting
Test of the ¼-sensor
○
☼
○
☼
Test of the ½-sensor
☼
○
○
☼
Test of the 3/4 -se ns or
○
○
○
☼
When measuring
Tank level 0
Indicators in Setup Mode
Mark
your
choose
Lamp
Red
Lamp
Yellow
Lamp
Green
Lamp
Blue
Duration
in seconds
Description
●
●
●
●
5 s
Calibration
○
●
○
○
5 s
Measurement period1 minute
D
○
●
○
●
5 s
Measurement period5 minutes
○
●
●
○
5 s
Measurement period10minutes
○
●
●
●
5
s
Measurement period10seconds
(installation mode)
●
○
○
○
5 s
Measurement period 8 hours
●
●
○
○
5 s
Gauge, 4 - 20 mA, Industrial Std
●
●
○
●
5 s
Gauge, 10 - 190 Ω, European Std
●
●
●
○
5 s
Gauge, 240 - 33Ω, USStd
D
●
●
●
●
5 s
Gauge, 0 - 5 Volt D C
●
○
●
○
5 s
System Reset to default setting
○
●
○
●
5 s
System Reset Acknowledge
○
○
○
○
N/A
The setup mode will be exited
without changing any parameters.
D = Default setting ●= light ○= no light You
change the settings by pressing and holding
the button on the panel. Gobius automatically flicks through the alternatives as presented in the table
above. Release the button when your choice is shown. Thereby you have made a new setting. Repeat
this until you have made the changes you want.
Table of lights –what the lamps on the panel show

7
○
○
☼
○
Tank level 1/4
○
☼
○
○
Tank level 1/2
☼
○
○
○
Tank level 3/4
○
○
○
●
After measuring
Tank is empty
○
○
●
○
Tank level 1/4
○
●
○
○
Tank level 1/2
●
○
○
○
Tank level 3/4
○
○
●☼
●
Sensor errors
1/4-sensor not functioning
○
●☼
○
●
1/2-sensor not functioning
●☼
○
○
●
3/4-sensor not functioning
○
●☼
●☼
●
1/4-sensor and 1/2-sensor not functioning
●☼
○
●☼
●
1/4-sensor and 3/4-sensor not functioning
●☼
●☼
○
●
1/2-sensor and 3/4-sensor not functioning
●☼
●☼
●☼
●
No sensorsfunctioning
☼
☼
☼
○
When calibrating
Gobius is calibrating
●= light ○= no light ☼= flashing light
Panel Flashing Codes
Permanent o n
The sensor isnot connected,or may be faulty
Fast flashing
Illogical resultwhen all 3 sensorsare taken together
Slow flashing
The sensor may not be properly mounted
Output current/resistance to gauge
Level
Industrial standard
4-20mA current l oo p
European s tan dard
10 – 190 Ω
US standard
240–33 Ω
Voltage output, 0 - 5
Volt, 10 kΩmin. l oad
re si stanc e
0
6 mA ± 10%
25 Ω± 5%
214Ω± 5%
1 V ± 5%
1 /4
10 mA ± 10%
70 Ω± 5%
150Ω± 5%
2 V ± 5%
1 /2
14 mA ± 10%
120Ω± 5%
80 Ω± 5%
3 V ± 5%
3 /4
18 mA ± 10%
190Ω± 5%
40 Ω± 5%
4 V ± 5%

8
Electrical specification
Supply V oltag e :
11 ~ 29 V D C
Supply Current:
200mA max. (Operating), 50mA max. ( I d l e)
Lamp driver outputs:
29 V DC max, 200mAmax
Analogue Instrument o utput s :
4-20 mA current loop, 10-190 Ω, 240-33 Ω, 0-5 Volt D C
Max. v oltag e :
29V D C
External interfaces
Control Unit
Lamp 1, full level
Analog output
Yellow
1Green
2
Lamp 2, under ¼ level
Gauge
Red
3
Black
BlackEuG
r.a o
ur gU eS
standard.
Red
4
Power input
+
Volt-
meter
Blue
Gauge
Optional resistor
for 24 Volts system
-Industry std +
-4-20 mA
White/Grey
BlackFuse,
500 mA
1 Yellow 4 Black
Please note that only one
gauge can be connected
at the same time.
- +
Battery
12/24V
Thank you for choosing Gobius!
Please do not forgetto register yourGobius products on
www.fmmarin.se, Products, in order to receive free technical s uppor t
1 Yellow
2 Green
3 Red
4 Black