Omnicomm LLS 30160 User manual

Omnicomm LLS 30160, LLS-AF 4
Fuel Level Sensors
User Manual
Omnicomm Configurator 6
03.08.2018

Contents
General Information
3
Specifications
4
Preparation
7
Fuel Tank Preparation
7
Sensor Preparation
9
Setting
9
“Empty/Full” Calibration
12
Omnicomm LLS 30160 Sensor Setting
13
Omnicomm LLS-AF 4 Sensor Setting
14
Installation and Connection
14
Calibration
17
Appendix. List of equipment for Omnicomm LLS fuel level sensors installation
21
Sealing
23

Omnicomm LLS 30160, LLS-AF 4 Fuel Level
Sensors
General Information
This User Manual is designed for Omnicomm LLS 30160 and Omnicomm LLS-AF 4 fuel level
sensors.
Omnicomm LLS 30160 is a fuel level sensor with RS-232 and RS-485 interfaces.
Omnicomm LLS-AF 4 is a fuel level sensor with analog and frequency interfaces.
While carrying out installation, observe the safety rules and regulatory requirements for this
type of work.
Minimum allowable length of the measuring piece is 150 mm.
The dielectric permeability of the measured medium should be constant. Failure to comply
with this requirement will lead to increased measurement error.
General Information
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 3

Specifications
Parameters Value
LLS 30160 LLS-AF 4
Power supply voltage, V 7 – 75 7 – 45
Power consumption, W 0,4 Typical – 0,6
Maximum – 0,9
During a short-circuit on an
analog output – 1,6
Measurement range, mm 0…700, 1000, 1500,
2000, 2500, 3000
0…700, 1000, 1500
Basic reduced error of measurement of the
sensor, %
±1
Ambient temperature, °С From -40 to +80
Limit temperature, °С -60 and +85
Relative humidity at 25 °С (without moisture
conden-sation), %
From 5 to 95
Atmospheric pressure, kPa From 84 to 107
Maximum relative humidity at 25 °С (without
moisture condensation), %
100
Ingress protection rating IP69k
Specifications
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 4

Operating mode Continuous
Internal filter size From 0 to 30
Measurement time period, s 1
Overall dimensions, cm 78х74х(24+length of the measuring probe)
Weight, kg Not more than 2
Average service life, years 8
Parameters Value
LLS 30160 LLS-AF 4
Omnicomm LLS 30160
Output interface for measured values RS-232, RS-485
Programmable interface transmission rate, bit/s 1200, 2400, 4800, 9600, 19200,
38400, 57600, 115200
Digital reading range corresponding to the maximum level
measurement value
1…4095
Digital reading range corresponding to the minimum level
measurement value
0…1023
Temperature measuring range, °C From -40 to +80
Specifications
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 5

Absolute error in temperature measurement within the entire
temperature measuring range, °С
±2
Omnicomm LLS 30160
Omnicomm LLS-AF 4
Analog output:
Output voltage range, V 0…20
Maximum output voltage, V 5…20
Minimum output voltage, V 0…15
Digital-to-analog conversion resolution, bit 12
Load resistance on analog output, Ohm Not less than 2000
Output signal pulsation, % Not more than 0.15
Frequency output:
Output signal modulation: Frequency pulse
Output frequency range, Hz 30…2000
Maximum output signal frequency, Hz 100…2000
Minimum output signal frequency, Hz 30…1900
Maximum load current at the frequency output in the “open collector” mode, mA 300
Specifications
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 6

Resistance of the internal “pull-up resistor” to positive voltage supply, Ohm 1500
Omnicomm LLS-AF 4
Preparation
Fuel Tank Preparation
1. Select the location for Omnicomm LLS sensor installation, taking into account the
following requirements:
The installation location should be as close to the geometric center as possible and be
placed at the deepest level of the tank:
When installed, the sensor should not be in contact with reinforcement ribs and existing
equipment inside the tank
Installing two sensors in one fuel tank allows to significantly reduce the de-pendence of
the fuel level on the vehicle inclination angle:
Preparation
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 7

2. Steam out the tank to comply with safety regulations
3. Drill out the central bore using a bimetal core drill (or hole saw) ø35 mm
4. Drill out four mounting holes according to the diagram:
The mounting hole diameter depends on the material of the tank:
ø 4 mm – for metal tanks with wall thickness over 3 mm (cut M5 thread)
ø 7 mm – for plastic and metal tanks with wall thickness up to 3 mm (for rivets)
ø 4 mm – for plastic tanks with wall thickness over 3 mm
Preparation
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 8

Sensor Preparation
1. Measure the depth of the tank. Cut the sensor measuring piece so that its length is
20mm less than the depth of the tank. Ensure that the shearing line is perpendicular to
the sensor's longitudinal axis
2. Use oil-and-petrol resistant non-conductive sealant to fill the insulation cap (included in
the kit) to 1/4–1/5 of its volume. Recommended sealants: PERMATEX™ MotoSeal® Black,
ABRO™ Black, ABRO™ Red
3. Put the insulation cap on the central rod of the Omnicomm LLS sensor
Setting
Connect the sensor to a PC or a tablet.
Connect the Omnicomm LLS 30160 sensors according to the diagram:
or
Setting
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 9

Connect the Omnicomm LLS-AF 4 sensors according to the diagram:
Run the Omnicomm Configurator program on your PC or tablet.
Setting
Omnicomm LLS 30160, LLS-AF 4 Fuel Level Sensors 10