RCS Epsilon ESx-H User Manual
"EPSILON"
®
FUEL LEVEL SENSOR
"ESx - H" model
User Manual
EH.000 UM
_v. 171228_
2
CONTENTS pages
INTRODUCTION………………………………………………………………3
1 SPECIFICATION AND PRINCIPLE OF OPERATION ...................... 3
1.1 Specification and operation of device ................................................................ 3
1.2 Specification and operation of device components .......................................... 10
2 INTENDED USAGE ............................................................................. 11
2.1 Operating restrictions ....................................................................................... 11
2.3 Device preparation for use ............................................................................... 11
2.4 Use of device .................................................................................................... 11
3 TECHNICAL SUPPORT ...................................................................... 12
3.1 Technical support of device ................................................................................... 12
4 TECHNICAL MAINTENANCE .......................................................... 13
4.1 Malfunctions diagnosis of device and troubleshooting actions ....................... 13
5 TRANSPORTATION AND STORAGE .............................................. 17
The present installation manual is intended to provide information necessary for
users during operation and maintenance of “Epsilon” fuel level sensor “ESx-H model”
(hereinafter – sensor, FLS or product).
Personnel familiar with the present manual is allowed to install the sensor.
3
1 SPECIFICATION AND PRINCIPLE OF OPERATION
1.1 Specification and operation of device
1.1.1 Intended use
Sensor is purposed for fuel level measurement in fuel tanks of vehicles and
stationary fuel tanks. Sensor can be used to measure level of other nonconductive
liquids.
ES2-H, ES4-H sensor can be used with equipment that supports unified
communication protocol Epsilon Data Exchange. (hereinafter - EDE).
ESA-H model sensors can be used with analogue interface devices.
Sensor has electronic galvanic isolation through interface and power circuits.
Sensor is compatible with different GPS tracking devices, such as:
- "Автограф";
- "Скаут";
- "Locarus";
- "Intellitrac";
- "Patriot";
- "Teletrack";
- "Teltonika";
- "M2M – Cyber GLX";
- "Ruptela FM";
- "BCE FM blue» and others.
Additional features
Model ES2-H sensors provide frequency interface (signal outputting from 500
to 1500 Hz frequency with linear frequency dependence vary with measured level of
fuel). Also, model ES2-H sensors can provide analogue interface (signal outputting
from 0 to 10 V voltage with linear voltage dependence vary with measured level of
fuel), when using FV-10 frequency-to-voltage converter.
4
1.1.2 Technical specification
Table 1.1
Parameter or characteristic name
Unit
Value
Note
(Note
number)
1
2 3 4
Operational temperature range
°
С
– 40 … + 75
Ingress protection rating
IP67
Mode of operation
Continuous
Upper variation range of level measurement
mm
from 150 to 2000
(1)
Ranges of permissible reduced error of level
measurement
%
±1,0
(2)
Variation range of relative dielectric
permittivity in controlled fuel (ε)
-
1,5…5,0
The period of measurement results averaging
Sec.
0…128
Code length of presentation of measurement
results
bit
10;12;14;16
(3)
Temperature measurement range of
measuring head
°
С
- 40…+ 85
Code length presentation of measuring head
temperature
bit
8
Power supply voltage, operational range
V
+9.5…+36
Nominal
value
Current consumption, max
mA
25
Acceptable exposure of impulse voltage
through power circuits
V
+120, long-term
+ 180 V, 1 sec.
-1000 V, long-term
(4)
Acceptable short-term exposure of potentials
difference between signal ground and body of
measuring head
V
±1500 V, 1 sec.
Digital interface
RS-485
ES4-H
RS-232
ES2-H
Exchange rate through the serial port
bps
2400, 4800, 9600,
19200, 38400,
57600, 115200
programm
ed
5
Table end 1.1
1
2 3 4
Frequency interface (when using ES.700
compatible device)
Hz
500…1500
ES2-H
Analogue interface
V
0…10
ESA-H
model
Analogue interface (when using frequency to
voltage converter FV-10)
V
0…10
ES2-H
Flange version
4 holes, 4,2 mm
Height of a measuring head over a tank top,
including flange and gasket, max
mm
26
Notes for table 1:
1 Level measurement range – Ly distance from the lower cut of metal tube (lower threshold
of measurement) to the lower edge of drain orifice (highest threshold of measurement),
according to Figure 1.1:
Figure 1.1 - Level measurement range
2 When testing fuel with the same dielectric permittivity as the fuel which was used during
calibration process. To ensure precise monitoring with other fuel grades (according to
dielectric permittivity of fuel grade) adjustment of calibration table must be used.
3 Data output has two layouts: 16 bit and 10/12/14/16 bit. Capacity 10/12/14/16 bit is
switched according to the program. 10 bit value is set by default.
4 Pulse parameters according to GOST (ГОСТ) 28751 (severity degree 3 for 24V on-board
power use).
Ly
6
1.1.3 Marking of device
Sensor has different marking, depending on the interface type and fuel probe
length (figure 1.2):
Figure 1.2 – Sensor legend
"Epsilon ES2-H" – exchanges data through RS-232 interface.
"Epsilon ES4-H" – exchanges data through RS-485 interface.
"Epsilon ESA-H" – exchanges data through analogue interface.
1.1.4 Device ordering
1.1.4.1 When ordering sensors marking includes:
- title name;
- sensor name - "Epsilon “
- model marking;
- interface type;
- fuel probe length in centimeters;
1.1.4.2 Example of “Epsilon” sensor marking for registration when ordering as
well as in specification of other products it can be used with:
Fuel level sensor "Epsilon" ES4-H-075
where "Fuel level sensor" is a title name;
"Epsilon" – sensor name;
"ES-H" – model;
"4" – interface RS-485;
"-" – spacer;
"075" – fuel probe length 75 cm;
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