NIVELCO EasyTREK SP-500 Series Assembly instructions

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Manufacturer
H-1043 Budapest, Dugonics u. 11.
Tel.: [phone] Fax: [phone]
sales
:
E-mail: @nivelco.com www.nivelco.com
NIVELCO Process Control Co.
EasyTREK
SP-500
two-wire integrated ultrasonic level transmitter

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Max (X. measuring dis tance of the devic e
M
)
Min (X. measuring distance
m
)
Max. measurement range of the device
Device data Application data
Max. distance to be measured (H)
Automatic close- end blocking Default: P05 = X
m
Manuakl close-end blocking Programmed: P05 > X
m
Programmed measurement r ange
Transmitted range
Far end blocking Defaults: P06 = 0
DIST = Distance (measured)
LEV = Level
( : H-DIST )calculated
VOL = Volume
(calculated from LEV)
Min. measuring distance
Measurement
BASIC CONCEPTS AND ELEMENTS
OF ULTRASONIC MEASUREMENT

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CONTENTS
1. INTRODUCTION .........................................................................................5
2. TECHNICAL DATA.....................................................................................6
2.1. General data ......................................................................................6
2.2. Special data .......................................................................................7
2.3. Accessories........................................................................................7
2.4. Order codes (Not all combinations are available)..............................7
2.5. Dimensions ........................................................................................8
3. INSTALLATION ..........................................................................................9
3.1. Liquid Level Measurement.................................................................9
3.2. Open channel flow measurement ....................................................11
4. WIRING .....................................................................................................11
5. PUTTING INTO OPERATION...................................................................12
5.1. Usage...............................................................................................12
5.2. Special conditions of safe use .........................................................12
5.3. Programming ...................................................................................13
5.3.1. Measurement configuration.................................................13
5.3.2. Current Output ....................................................................20
5.3.3. Relay Output .......................................................................22
5.3.4. Digital communication.........................................................23
5.3.5. Measurement optimisation..................................................23
5.3.6. Volume (content) measurement..........................................27
5.3.7. Open channel flow measurement .......................................28
5.3.8. Programming the VOLUME / MASS / FLOW TABLE)........34
5.3.9. Informational parameters (read only parameters)...............35
5.3.10. Additional parameters of the flow metering.........................36
5.3.11. Other parameters................................................................36
6. MAINTENANCE AND REPAIR ................................................................37
6.1. Firmware upgrade............................................................................37
7. ERROR CODES........................................................................................ 37
8. PARAMETER TABLE...............................................................................38
9. SOUND VELOCITY VALUES IN DIFFERENT GASES ...........................40

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Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use.
1. INTRODUCTION
Application
The EasyTREK compact ultrasonic level transmitters from NIVELCO are
excellent tools for level measurement of liquids.
Level measurement technology based on the non-contacting ultrasonic
principle is especially suited for applications where, for any reason,
no physical contact can be established to the surface of the material to
be measured.
Principle of Operation
The ultrasonic level metering technology is based on the principle of
measuring the time required for the ultrasound pulses to make a round trip
from the sensor to the level to be measured and back. The sensor emits an
ultrasonic pulse train and receives the echoes reflected. The intelligent
electronic device processes the received signal by selecting the echo reflected
by the surface and calculates from the time of flight the distance between the
sensor and the surface which constitutes the basis of all output signals of the
EasyTREK.
A Total beam angle of 5– 7at -3 dB as is featured by most of Nivelco’s
SenSonic transducers ensuring a reliable measurement in narrow silos with
uneven side walls as well as in process tanks with various protruding objects.
Furthermore, as a result of the narrow beam angle – the emitted ultrasonic signals
have an outstanding focusing – deep penetration through gases, vapour and foam
is ensured.
X
m
X
M
XD
0.21 m
0.3 m
0.56 m
1 m –
1.45 m
1 m
2 m –
5 m –
10 m –
15 m –
D
Diameters corresponding
to
5° beam angle.
Minimum measuring distance (Xm) is determined by the design of the unit within which the measurement is not possible (Dead Zone) its value is according with
P05 on page 18. Since measurement is impossible within this range material should not get into this zone.
Maximum measuring distance (XM) is the greatest distance (determined by the design of the unit) which can be measured by the unit under ideal conditions.
(See parameter P04 on page 17). Maximum measuring distance of the actual application (H) must not be greater than XM.

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2. TECHNICAL DATA
2.1. GENERAL DATA
Transducer / enclosure materials Polypropylene (PP), PVDF, PTFE/PP
Process temperature PP, PVDF and PTFE transducers -30 °C … +90 °C
Ambient temperature -30 °C … +80 °C
Pressure(1) (Absolute) 0.05 – 0.3 MPa (0.5 – 3 bar)
Seals PP transducer: EPDM; All other transducer versions: FPM
Ingress protection IP68
Power supply 10(3) – 36 V DC with HART communication 40 mW – 720 mW, Galvanic isolation; protection against surge transients
Accuracy(2) (0.1% measured + 0.025% max.) or (0.05% max.) whichever is greater
Resolution Depending on the measured distance: <2 m: 1 mm, 2 – 5 m: 2 mm, 5 – 10 m: 5 mm, >10 m: 10 mm
Outputs
Analogue: 4 – 20 mA, (3.9 – 20.5 mA), Rtmax = (Ut– 10 V) / 0.02 A, Galvanic isolation; protection against surge transients
SPDT relay, 30 V / 1 A DC; 48 V / 0.5 A AC
Serial communication: HART interface (terminal resistor ≥250 Ohm)
Programming / diagnostic interface: 3.3 V LVDS, 100 mA max., Galvanic isolated
Electrical connection 6 x 0.5 mm2shielded cable 6 mm x 5 m (available max. length 30 m)
Electrical protection Class III SELV
(1) For pressures below 1 bar consult with your representative at NIVELCO
(2) Under optimal circumstances of reflection and stabilised transducer temperature.
(3) Only partial operation is provided. Reliable operation without any restrictions is guaranteed at >11 V terminal voltage.

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2.2. SPECIAL DATA
SPECIAL DATA FOR PP, PVDF AND PTFE TRANSDUCERS (ALSO APPLIES TO ExMODELS)
Type SP-5A-SP-59-SP-58-SP-57-SP-56-SP-54-
Transducer material PP or PVDF PP, PVDF PTFE PP, PVDF PTFE PP, PVDF PTFE PP or PVDF PP or PVDF
Max. measuring distance (XM) [m / ft] 3 / 10 5 / 16 4 / 13 8 / 26 6 / 20 10 / 33 7 / 23 12 / 39 18 / 59
Min. measuring distance *
(Dead band) (Xm) [m / ft] 0.15 / 0.49 0.18 / 0.59 0.25 / 0.82 0.2 / 0.65 0.25 / 0.82 0.25 / 0.82 0.35 / 1.2 0.25 / 0.82 0.35 / 1.2
Total beam angle (-3dB) 5° 6° 5° 7° 5° 5°
Measuring frequency 120 kHz 80 kHz 80 kHz 50 kHz 60 kHz 40 kHz
Process connection 1" BSP / NPT 1" BSP and 1½" BSP / NPT 1" BSP and 2" BSP / NPT 1" BSP and 2" BSP / NPT 1" BSP 1" BSP
* (from the transducer face)
2.3. ACCESSORIES
 Warranty Card
 Installation and Programming Manual
 Declaration of Conformity
2.4. ORDER CODES (NOT ALL COMBINATIONS ARE AVAILABLE)
EasyTREK S P – 5 –
HOUSING MATERIAL CODE RANGE M/FEET CODE PROCESS CONNECTION CODE OUTPUT /EXCODE
PP A 18/59 4 1"; 1½", 2" BSP thread 0 4 – 20 mA / HART 4
PVDF B 12/39 6 1"; 1½", 2" NPT thread N 4 – 20mA / Relay / HART N
PTFE / PP T 7/23; 10/33 * 7
6/20; 8/26 * 8
4/13; 5/16 * 9
3/10 A
The order code of an Ex version should end in ‘Ex’
* Measuring range depends on the material of the transducer

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2.5. DIMENSIONS
EasyTREK
SP-5A-/
PP, PVDF
EasyTREK
SP-59-/
PP, PVDF, PTFE
EasyTREK
SP-58-/
PP, PVDF, PTFE
EasyTREK
SP-57-/
PP, PVDF, PTFE
EasyTREK
SP-56-/
PP, PVDF
EasyTREK
SP-54-/
PP, PVDF
Ø47
~612
1" BSP
2216
BSP 15, NPT 22
1" BSP
1" NPT
40
Ø47
~182
1" BSP
2216
BSP 15, NPT 22
1"BSP
1"NPT
½
½
60
Ø47
~182
1" BSP
2216
BSP 15, NPT 22
2" BSP
2" NPT
60
Ø47
~202
1" BSP
2216
BSP 15, NPT 22
2" BSP
2" NPT
80
Ø75
~135
1" BSP
2216
1" BSP
2216
~144
Ø124

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3. INSTALLATION
3.1. LIQUID LEVEL MEASUREMENT
POSITION
The ideal position of the EasyTREK is on the radius
r = (0.3 – 0.5) R of the (cylindrical) tank / silo.
(Take also sonic cone on page 5 into consideration.)
SENSOR ALIGNMENT
The sensor face has to be parallel to the
surface of the liquid within 2– 3.
TEMPERATURE
Make sure that the transmitter is
protected against overheating by
direct sunshine.
Sunshade

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OBSTACLES
Make sure that no objects (cooling pipes, bracing members,
thermometers etc.) protrude into the sensing cone of the ultrasonic
beam.
Remark: EasyTREK programming allows one fixed object that would
otherwise disturb the measurement to be blocked out. (see P29 of
programming).
FOAM
Foaming of the liquid surface may render ultrasonic level metering
impossible. If possible, a location should be found, where foaming is
the least (device should be located as far as possible from liquid
inflow) or a stilling pipe or well should be used.
WIND
Intensive air (gas) movements in the vicinity of the ultrasonic cone
is to be avoided. A strong draft of wind may "blow away"the
ultrasound. Devices with lower measuring frequency (40, 20 kHz)
are recommended.
FUMES / VAPOURS
For closed tanks containing chemicals or other liquids, which
creates fume/gases above the liquid surface especially for outdoor
tanks exposed to the sun, a strong reduction of the nominal
measuring range of the ultrasonic device is to be considered during
device selection. Devices with lower measuring frequency
(40, 20 kHz) are recommended in these cases.
STAND-OFF
The structure of the stand off pipe should be rigid; the inner rim where the ultrasonic beam leaves the pipe should be rounded.
L Dmin
SP– 59SP– 58SP– 57
150 50 60 60
200 50 60 75
250 65 65 90
300 80 75 105
350 95 80 120
L
Dmin.
350
100ØD
L Dmin
SP– 54
90 130
200 140
350 150
500 160

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3.2. OPEN CHANNEL FLOW MEASUREMENT
 The unit is suitable for open channel flow measurement with the constructive works listed in 5.3.8.
 For ultimate accuracy, install the sensor as close as possible above the expected maximum water level (see minimum measuring range).
 Install the unit in a place defined by the characteristics of the metering channel along the longitudinal axis of the flume or weir. In case of Parshall flumes
supplied by NIVELCO the location of the sensor is marked.
 In some cases foam may develop on the surface. Make sure that the surface, opposite to the sensor, remains free of foam for proper sound reflection.
 The unit should be fixed so that it‘s position would not change.
 From measurement accuracy point of view the length of the channel sections preceding and following the measuring flume and their method of joining to the
measuring channel section are of critical importance.
 Despite of the most careful installation, the accuracy of flow metering will be lower than that of specified for the distance measurement. The features of the
flume or weir applied will determine it.
 Devices should be protected against overheating due to direct sunshine by using sunshades.
4. WIRING
 Make sure the terminals in the box are not under power (Use shielded cable 7 x 0.5 mm2– with relay
output, 4 x 0.5 mm2– without relay output suggested in the technical data or stronger).
 After powering the necessary programming can be performed.
Blue
White
Brown
Grey
Pink
Ye ll o w
Junction box
Green
Black
Firmware updating
and diagnostic port
Wire colours:
Pink – relay C1 output White – I, one of the points of current loop, power supply and HART (polarity independent)
Grey – relay CC output Brown – I, other point of current loop, power supply and HART (polarity independent)
Blue – relay C2 output Black – GND, functional earthing and shielding point
Power supply
Power supply
+HART
+Current output
HART modem
I
white (brown)
brown (white)
pink
black R
C1 C2
CC
grey
blue
TRANSMITTER
mA
Relay
output
Extension of the integrated cable:
Should extension be needed the use of connection box is
suggested.
The shielding of the two cables should be connected and
grounded at the signal processing device.

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5. PUTTING INTO OPERATION
5.1. USAGE
Subsequent to powering the correctly wired device would start to tick and after 10 – 20 s ECHO LED go on and 4 – 20 mA signal appears on the current output.
Measurement will be according to the factory setting. The factory setting is throughout apt to check proper working and to perform simple measurement tasks but
features residing in the unit can only be utilised by adjusting the EasyTREK to the application by programming. For sound knowledge of the operation features and
proper solving of difficult measurement applications the parts of the programming should carefully be studied.
LED indication:
 ECHO-LED
– On, if the unit detects proper echo
 COM-LED
– Blinking on HART communication
– Is ON in the state of remote programming
 RELAY-LED (optional)
– Lits, if CC-C2 is ON
– Does not lit, if CC-C1 is ON
Device can be reset to factory setting. Default of EasyTREK SP-300 is the following:
 Measurement: level (LEV)
 Zero level assigned to the maximum distance
 Current output proportional to the level
 4 mA and 0% assigned to zero level.
 20 mA and 100% a assigned to the maximum level (minimum distance)
 Error indication by the current output: holds last value.
 Damping: 60 s.
5.2. SPECIAL CONDITIONS OF SAFE USE
The cable outside the unit should be fixed so that it should be free of loading.
The terminal box should be selected in accordance with the electrical class of the area.
Red LED
„ECHO”
Red LED
„COM”
Cable
Red LED
„RELAY”
View of the transmitter neck from above:

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5.3. PROGRAMMING
The HART interface of the EasyTREK provides for access to the whole parameter set and possibility of their programming. Parameter set can be reached in two
different ways: by the use of the
– EView2 software run on the PC connected through HART modem to the loop or
– NIVELCO made MultiCONT multi-channel process control unit.
Since these access methods differ in their form and handling present manual does not review them. The information is contained in the relevant descriptions and
user’s manuals.
5.3.1. MEASUREMENT CONFIGURATION
P00: - c b a Engineering Units FACTORY DEFAULT: 000
Programming of this parameter will result in loading the factory default with the corresponding engineering units.
Therefore all parameters should be set again!
a Operation
0 Liquid level measurement
b
Engineering units
(according to “c”)
Metric US
0 m ft
1 cm inch
c Calculation system
0 metric
1 US

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P01: - - 1 a Measurement Mode FACTORY DEFAULT: 11
Parameter value “a” will determine the basic measurement value that will be transmitted. Subsequently values for the relays are also relating to
these quantities.
a Measurement
mode Transmitted value Display symbol
0 Distance Distance DIST
1 Level Level LEV
2 Volume Volume VOL
3* Mass Mass MASS
4 Flow Flow FLOW
* See: P32
A
Xm
LEV %
0100 [%]
LEV
0
DIST
0H
D
DIST H
P10
P11
H
Transmitted value DIST LEV=H-DIST LEV%=P10
m
XH
P10P11
*LEV 


Parameters to set P00
P01(a) = 0
P05 ≥X
m
P00
P01(a) = 1
P04 = H
P05 ≥X
m
P00
P01(a) = 2
P04 = H
P05 ≥X
m
P10 = X 0%
P11 = X100%

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A
VOL %
0100
[%]
0
D
DIST H
P10
P11
CB
VOL
Transmitted value VOL
fP40…P45(H-DIST)
VOL%=P10
m
XH
P10P11
*VOL 


Parameters to set P00
P01(a) = 3
P02(b)
P04 = H
P05 ≥X
m
P40 … P45
P00
P01(a) = 4
P02(b)
P04 = H
P05 ≥X
m
P10 = X 0%
P11 = X100%
P40 … P45
A: Shortest measurable distance
B: Volume (content) pertaining to the greatest measurable level
C: Whole value of the vessel
D: diagram valid for the default value of P10 P11

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P02: - c b a Calculation units FACTORY DEFAULT: 000
a Temperature
0 °C
1 °F
This table is interpreted according to P00(c), P01(a) and P02(c) and is irrelevant in case of percentage measurement [ P01(a)= 2 or 4)]
b Volume Weight (set also P32) Volume flow
Metric US Metric US Metric US
0 m3ft3– lb (pound) m3/time ft3/time
1 litre gallon tons tonnes litre/time gallon/time
c Time
Attention!
EasyTREK is a level transmitter. Although it can be used for
measuring weight, due to factors involved in doing so, accuracy
may essentially be influenced.
0 s
1 min
2 hour
3 day
P03: - - - a Temperature compensation mode FACTORY DEFAULT: 0
Temperature compensation mode
aTemperature compensation mode
0Automatic
1Manual
Automatic: The compensation is done with using the value measured by the temperature sensor.
Manual: The compensation is done with a fixed setpoint temperature value independently of the measured value (P07).

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P04 - - - - Maximum Distance to be Measured (H) FACTORY DEFAULT: XMas per chart
This is the only parameter that has to be programmed for each application other than distance (however to avoid disturbing effect of
possible multiple echoes it is suggested to do this in distance measurement applications too).
The maximum distance to be measured is the greatest distance between the surface of the transducer and the farthest level to be measured.
The factory programmed, greatest distances (DEFAULT values) which can be measured by the units are listed in the table below. For the actual
application the maximum distance to be measured i.e. the distance between the sensor and the bottom of the tank should be entered in P04.
EasyTREK
Level transmitter for liquids
Maximum measuring distance XMm/feet
Transducer material PP / PVDF Transducer material PTFE
SP_-5A 3 / 10 -
SP_-59 5 / 16 4 / 13
SP_-58 8 / 26 6 / 20
SP_-57 10 / 33 7 / 23
SP_-56 12 / 39 -
SP_-54 18 / 59 -
Since the level is determined by calculating the difference between the value set in P04 and distance (DIST) is measured by the unit, it is
essential that the correct value of (H) is set in P04. To obtain the best accuracy it is suggested that this distance is measured in the empty tank.

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P05: - - - - Minimum measuring distance (Dead zone – Close-end blocking) FACTORY DEFAULT: Xmas per chart
The range, beginning with the sensor’s surface, within which (due to the physical restraint of the ultrasound measurement system) measurement can
not be made, is called the dead zone. The EasyTREK will not accept any echo within the blocking distance set here.
Close-end blocking may be represented as the extension of the dead zone within which a possible echo will not be taken into consideration making
possible to exclude disturbing objects near to the sensor.
Automatic Close-end blocking =Dead Band control (P05 = Xm)
Device with factory default will automatically set the smallest possible dead band depending on the conditions of the operation. This will be under
optimal conditions a bit smaller in unfavourable circumstances greater than value given in the chart.
Manual Close-end-blocking with limitation ≥dead zone (P05>Xm)
By entering a value, higher than the factory default the close-end blocking will be either the value programmed in P05 or the actual dead zone
distance (influenced by the actual conditions of the application) whichever is greater.
EasyTREK
for liquids
Minimum measuring distance Xm m/feet
Sensor material PP / PVDF Sensor material PTFE
SP_-5A 0.15 / 0.49 -
SP_-59 0.18 / 0.59 0.25 / 0.82
SP_-58 0.2 / 0.65 0.25 / 0.82
SP_-57 0.25 / 0.82 0.35 / 1.2
SP_-56 0.25 / 0.82 -
SP_-54 - -

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P06: - - - - Far-end blocking FACTORY DEFAULT: 0
Far-end blocking is the range below the level set
in parameter P06. The far-end blocking can be
used to avoid disturbing effect of stirrer or heaters
at the bottom of the tanks. Detecting echoes in
this range the unit provides special signals.
A.) Measuring level or content
Level sinking below
 the value of P06 current output is according to
the value of the far-end blocking and further
 below SUB 0 (7/8 of P06) the ERROR CODE
10 will be transmitted via HART
P06=X
SUB 0 X/8
20 mA 4 mA
H
 Level rising over value of far-end blocking:
The calculation of level and volume will be based on the programmed tank dimensions, therefore the measured or calculated process values will
not be influenced in any way, by the far end blocking value.
B.) Open channel flow metering
Far-end blocking will be used for those small levels below which the accurate volume flow calculation is no longer
possible.
 Level in the flume/weir sinking below the blocked out range:
- Output current value will be according to the value of Q = 0
- 0 value transmitted via HART for display of „No Flow” or 0
 Level in the flume/weir rising over the blocked out range:
The calculation of volume flow will be based on the programmed flume/weir data; therefore the measurement
values will not be influenced in any way, by the far end blocking value.
P04
P46
hP06
P07: - - - - Temperature compensation with fixed value FACTORY DEFAULT: 20 ºC
Manual temperature compensation value

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5.3.2. CURRENT OUTPUT
P08: - - - - Fixed current output FACTORY DEFAULT: 0
Fixed current output setting parameter
With this parameter the output current can be set to a fixed value between 3.8 mA and 20.5 mA.
This automatically overwrites the 4 mA value set by the HART multidrop mode and the transmitted analogue output current is deactivated.
P10: - - - - Value (of distance, level, volume or flow) assigned to 4 mA current output FACTORY DEFAULT: 0
P11: - - - - Value (of distance, level, volume or flow) assigned to 20 mA current output FACTORY DEFAULT: XM– Xm
Values are interpreted according to P01(a). Assignment can be made so that the proportion between the change of the (measured or calculated)
process value and the change of the current output be either direct or inverse. E.g. level 1 m assigned to 4 mA and level 10 m assigned to 20 mA
represents direct proportion and level 1 m assigned to 20 mA and level 10 m assigned to 4 mA represents the inverse proportion.
Transmitting level
A
LEV
D
DIST
H
P10
P11
3.8 mA
20.5 mA
04 20[mA]
I
out
A: Smallest measurable dist.
D: diagram valid for default
values of P10 and P11