NIVELCO EasyTREK SP-500 Pro Assembly instructions

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CONTENTS
1. INTRODUCTION....................................................................................5
2. TECHNICAL DATA................................................................................6
2.1 General............................................................................................6
2.2 Device-specific data ........................................................................7
2.3 Accessories .....................................................................................7
2.4 Order codes.....................................................................................7
2.5 Dimensions......................................................................................8
3. INSTALLATION .....................................................................................9
3.1 Liquid Level Measurement ..............................................................9
3.1.1 Riser ......................................................................................10
3.2 Open channel flow measurement..................................................11
4. WIRING ................................................................................................11
4.1 Available user interfaces ...............................................................12
5. COMMISSIONING, SETTING UP........................................................12
5.1 Usage ............................................................................................12
5.2 Conditions of safe operation..........................................................13
5.3 Programming .................................................................................13
5.3.1 Programming with EView2 ....................................................13
5.3.2 Measurement configuration...................................................14
5.3.3 Current output .......................................................................20
5.3.4 Relay Output .........................................................................22
5.3.5 Digital communication ...........................................................23
5.3.6 Measurement optimization ....................................................23
5.3.7 Volume measurement ...........................................................27
5.3.8 Open channel flow measurement..........................................28
5.3.9 Programming the Output Conversion Table – OCT ..............33
5.3.10 Informational parameters (read only parameters)...............34
5.3.11 Additional parameters of the flow metering.........................35
5.3.12 Other parameters ................................................................35
5.3.13 Echo Diagram (oscilloscope function).................................36
5.3.14 Level threshold value curve (“Threshold curve”).................36
6. MAINTENANCE AND REPAIR ...........................................................38
6.1 Firmware upgrade .........................................................................38
7. ERROR HANDLING ............................................................................39
7.1 Status and error reporting in hart communication.........................39
8. SUMMARY TABLE OF PARAMETERS .............................................41
8.1 Configuration parameters (read - write) ........................................41
8.2 Information and control parameters (Read only)...........................42
9. THE SPEED OF SOUND IN DIFFERENT GASES .............................43

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Thank you for choosing a NIVELCO instrument.
1. INTRODUCTION
Application
NIVELCO
's EasyTREK Pro compact ultrasonic level transmitters are excellent
for measuring the level of liquids.
The technology is based on the non
-contacting ultrasonic principle, which is
particularly suited for applications where the measuring device cannot touch
the
surface of the measured medium.
Operating principle
The ultrasonic level metering technology measures the time required for the
ultrasound pulse to make a round trip from the sensor to the measured level
and back. The sensor emits an ultrasonic pulse burst
and receives the echoes.
The electronics processes the received signal by selecting the echo reflected
by the surface and calculates the distance between the sensor and the surface
from the time of flight. The distance constitutes the basis of all output
signals of
the
EasyTREK Pro.
The beam angle of NIVELCO's SenSonic transducers is 5…7° at –3 dB,
which ensures reliable measurement in narrow silos with uneven sidewalls
and tanks with various interfering objects. Furthermore, the ultrasonic signals
are excellently focused and penetrate through gases, vapor, and foam due
to the narrow beam angle.
Diameters at 5°
beam angle.
The unit's design determines the minimum measuring distance (Xm)within which the measurement is not possible (dead zone). Its value is according to P05 on
page 18. Since the measurement is impossible within this range, the material must not get into this zone.
Maximum measuring distance (XM)is the longest distance that the device can measure under ideal conditions. For its value, see P04 on page 17. The maximum
measuring distance of the actual application (H) must not be greater than XM.

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2. TECHNICAL DATA
2.1 GENERAL
Transducer / enclosure materials PP, PVDF
Process temperature PP, PVDF transducers –30…+90 °C [–20…+190 °F]
Ambient temperature –30…+80 °C [–20…+175 °F]
Pressure(1) (absolute) 0.5…3 bar (0.05…0.3 MPa) [7.25…43.5 psi]
Seals PP transducer: EPDM; all other transducer versions: FPM
Ingress protection IP68
Power supply / power consumption 12…36 V DC with HART®communication 40…720 mW, galvanic isolation;
surge transient protection
Accuracy (2) ±(0.1% Xmeasured + 0.025% XM) or ±(0.05% XM) 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
[<6.5 ft: 40 mil, 6.5…16 ft: 78 mil, 16…32 ft: 200 mil, >32 ft: 400 mil]
Outputs
Analog: 4…20 mA, (3.9…20.5 mA), Rtmax = (Ut – 12 V) / 0.02 A,
galvanic isolation; surge transient protection
SPDT relay, 30 V / 1 A DC; 48 V / 0.5 A AC
Serial communication: HART® interface (termination resistor ≥ 250 Ω)
Programming / diagnostic interface: 3.3 V LVDS, 100 mA max., galvanically isolated
Electrical connection 6 x 0.5 mm2[AWG20] shielded cable ∅6 mm x 5 m (∅0.24″x 196.9″) (available max. length 30 m [98.5 ft])
Electrical protection Class III (SELV)
(1) For pressures below 1 bar (14.5 psi), contact NIVELCO.
(2) Under optimal reflection conditions and constant transducer temperature.

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2.2 DEVICE-SPECIFIC DATA
DEVICE-SPECIFIC DATA FOR PP AND PVDF TRANSDUCERS
SP

–5A

–

SP

–59

–

SP

–58

–

SP

–57

–

SP

–56

–

SP

–54

–

Transducer material
PP, PVDF
Max. measuring distance (X
M
)
[m (ft)]
3 (10) 5 (17) 8 (26) 10 (33) 12 (40)
18 (60)
Min. measuring distance*
(dead zone) (Xm) [m (in)]
0.15 (6) 0.18 (7) 0.2 (8) 0.25 (10) 0.35 (14)
Beam angle (–3 dB)
5°
6°
5°
7°
5°
Measuring frequency
120 kHz
80 kHz
50 kHz
60 kHz
40 kHz
Upper process connection
1″ BSP
Lower process connection
1″ BSP / NPT
1½″ BSP / NPT
2″ BSP / NPT
-
*From the transducer face.
2.3 ACCESSORIES
•Warranty Card
•Installation and Programming Manual
•EU Declaration of Conformity
2.4 ORDER CODES (NOT ALL COMBINATIONS ARE AVAILABLE)
EasyTREK
S
P
–
5
–
Transducer material
Code
Range / Frequency
Code
Process Connection
Code
Output
Code
PP
A
0,15…3 m / 120 kHz (1)
A
BSP thread
0
4…20 mA + HART®
4
PVDF
B
0,18…5 m / 80 kHz (2)
9
1", 1½", 2" NPT and
1" BSP
(4)
N
4…20 mA + Relay + HART®
N
0,2…8 m / 80 kHz (3)
8
0,25…10 m / 60 kHz (3)
7
0,25…12 m / 60 kHz (1)
6
(1) only for 1" process connection
(2) only for 1" or 1½" process connection
(3) only for 1" or 2" process connection
(4)
only for SP–5A, SP–59, SP–58, SP–57
0,35…18 m / 40 kHz (1)
4
Pro

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2.5 DIMENSIONS
SP

–5A

–

SP

–59

–

SP

–58

–

SP

–57

–

SP

–56

–

SP

–54

–


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3. INSTALLATION
3.1 LIQUID LEVEL MEASUREMENT
Position
The ideal position of the EasyTREK Pro is on the radius
r = (0.3…0.5) R of the (cylindrical) tank / silo.
(Be sure to take the radiation cone (page 5) into
consideration.)
SENSOR ALIGNMENT
The sensor face has to be parallel to the
surface of the liquid within ±2…3°.
TEMPERATURE
The transmitter must be
adequately protected from
direct sunlight.

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OBSTACLES
There must be no interfering objects (cooling pipes, bracing
members,
thermometers, etc.) in the sensing cone of the
ultrasonic beam.
Note: The programming of the EasyTREK allows one static
object that would otherwise disturb the measurement to be
masked out (see P29 of programming).
FOAM
Foam on the liquid's surface may make ultrasonic level metering
impossible. Find a location where the foaming is the thinnest
(the device must be placed as far from liquid inflow as possible),
or a stilling pipe or a well must be used.
WIND
Intensive air (gas) flow near the ultrasonic cone must be avoided. A
strong gust of wind may blow the ultrasound away. Devices with
lower measuring frequency (40, 20 kHz) are recommended.
FUMES / VAPOURS
Fume or gases above the surface of the measured liquid in closed
tanks, especially ones exposed to direct sunlight, may strongly reduce
the nominal measuring range of the ultrasonic device. Therefore, do
consider this phenomenon when selecting a device.
Devices with a lower measuring frequency (40 & 20 kHz) are
recommended for such scenarios.
3.1.1 RISER
The riser must be rigid; the lower rim, where the ultrasonic beam leaves the pipe, must be rounded (r).
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
SP

–54

90
130
200
140
350
150
500
160
Contact NIVELCO regarding this value.

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3.2 OPEN CHANNEL FLOW MEASUREMENT
•The unit can be used for open channel flow measurement with the flumes listed in chapter 5.3.8.
•For maximum accuracy, install the sensor above the expected maximum water level as close as possible (see minimum measuring range).
•Install the unit along the longitudinal axis of the flume or weir in a place determined by the characteristics of the metering channel. O the Parshall flumes
sold by NIVELCO, the sensor's location is marked.
•In some cases, foam may develop on the surface. Make sure that the surface opposite the sensor remains free of foam for proper sound reflection.
•The unit must be fixed so that its position does not change.
•Building the section preceding and following the Parshall flume is critical for accurate measurements.
•Regardless of how accurate the installation is, the accuracy of flow metering is always lower than that of distance measurement. It is determined by the
properties of the flume or weir.
•The device must be protected from direct sunlight by using a sunshade.
4. WIRING
•Make sure the terminals in the box are not energized (use shielded at least 7x0.5 mm2(AWG20)
cable for a setup with a relay output and 4x0.5 mm2without it).
•The necessary programming can be performed after powering up.
……
Wire colours
Pink – relay C1 output white – Ione of the points of the current loop, power supply and HART (polarity is
irrelevant)
Grey – relay CC output brown – Iother point of the current loop, power supply and HART (polarity is irrelevant)
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
Extending the integrated cable
To extend the cable it is recommended to use a
terminal block box.
The shielding of the two wires must be joined and
grounded at the signal processing device.

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4.1 AVAILABLE USER INTERFACES
The transmitter can be set up (programmed) using the following devices:
MultiCONT Multichannel Process Controller
Ordered separately. Functions as a display as well.
HART®USB modem
UNICOMM SAT–504–0, –1, –2
Ordered separately. See chapter “5.3.1 Programming with the EView2 software.”
HART®USB modem
UNICOMM SAT–504–3
Ordered separately. See chapter “5.3.1 Programming with the EView2 software.”
The NiFlash software can also be used to update the device's firmware. See chapter “6.1 Firmware
upgrade.”
5. COMMISSIONING, SETTING UP
5.1 USAGE
If the device is connected correctly, it will click audibly for a short time after the power supply has been switched on. After 10…20 s, the ECHO LED will light up,
and the current output will display 4…20 mA. From the moment of switching on until the start of the current transmission proportional to the measured value, during
the initialization time, the value of the transmitted current will be as set in parameter P12b "Current generator operating mode."
In this case, the device measures with the factory default settings. The factory settings can also be used for checking the functionality and solving the simplest
measurement tasks, but the possibilities of the device can only be utilized with the correct programming that fits the measured process. Therefore, to thoroughly
understand the operating characteristics and acquire the operational knowledge required to solve complex measurement tasks, it is also necessary to study the
programming chapters.
Single-LED status indications:
•ECHO-LED
–ON if the device is receiving a proper echo.
–Blinking, if the device is searching for an echo.
–Blinking rapidly, when the device is in level simulation mode.
•COM-LED
–Blinking on HART communication
–ON, when remote programming is in progress
–Blinking for 4 seconds after the device is switched on: During this time,
a service communication link can be established. If it keeps blinking, it
indicates a firmware error.
•RELAY LED (optional)
–Lights up, if CC-C2 is ON.
–Does not light up, if CC-C1 is ON.

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Two LED status indicators
ECHO LED
COM LED
Number of blinking
Status report
Source – Error bit (See chapter 7.1)
Alternately blinking
continuous
Low loop voltage
Bit15, Bit14, Bit11 co-presence.
They blink at the same time, then pause and repeat
2
OCT integrity error
Bit3 or Bit4 or Bit5
3
Currently not used.
-
4
Relay error
Bit13
5
Currently not used.
-
6
NV memory error (EEPROM)
Bit1
continuous
•HRP detection failure
•SIM detection failure
Bit12
The device can be reset to the factory settings. The default settings of the EasyTREK SP–500 Pro are the followings:
−measurement: level (LEV)
−zero level assigned to the maximum distance
−current loop 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 via the current output: holds last value
−damping: 60 s.
5.2 CONDITIONS OF SAFE OPERATION
The cable outside the unit must be fixed and free of tension or load.
The terminal box used for connecting the device must comply with the local electrical requirements.
5.3 PROGRAMMING
The HART®interface of the EasyTREK provides access to the whole parameter set. The parameter set can be accessed in two different ways: by the using:
−EView2 on a PC connected through a HART®modem to the loop.
−NIVELCO’s MultiCONT multi-channel process control unit.
These methods require a lengthy explanation; therefore, this manual does not discuss them. This programming guide only lists the parameters of EView2. For
detailed information, please refer to the descriptions or instructions for each access method.
5.3.1 PROGRAMMING WITH EVIEW2
Install the “EView2 HART Configuration Software” (hereafter EView2) according to chapter 3 of the program's manual. The software can be downloaded from
nivelco.com.
Electrical connections: connect the transmitter to your PC using a HARTUSB modem (sold separately).

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Start the program and search for the transmitter in the program (for more details, see EView2 user manual chapter 4).
Select a device from the list of detected devices and open the “Device programming” window of the device (chapters 4.4 and 4.5 of the EView2 user manual).
EView2 lets you set all the parameters and functions. The following chapter summarizes where and how to access the parameters.
5.3.2 MEASUREMENT CONFIGURATION
P00: - c b a Engineering Units FACTORY DEFAULT: 000
The device loads the entire parameter set with the factory parameter values according to the new unit system if the parameter is changed.
Therefore, all parameters must be set again!
a
Operation
The device is only suitable for measuring liquid levels, so this parameter cannot be changed.
Eview2 setting: “Device Settings” → “Application” → “Operating mode.”
0
Liquid level measurement
b
Engineering units
(according to “c”)
The unit of measure of the measured value when the instrument is set to measure distance or
level. It is also the unit of measure for distance or length type parameters.
EView2 setting: “Device Settings” → “Application” → “Engineering units.”
Metric (EU)
Imperial (US)
0
m
ft
1
cm
Inch
c
Unit system
The used units of measurement (length, volume, mass) are determined by the unit system
set in this parameter. When changing the units of measure, the unit system must be selected
first, and only then can the actual unit be set.
EView2 setting:“Device Settings” →“Application” →“Calculation system.”
0
Metric (EU)
1
Imperial (US)

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P01: - - - a Measurement Mode FACTORY DEFAULT: 11
Parameter value “a” determines the basic measurement value transmitted. Subsequently, values for the relays are also relating to these quantities.
Setting the physical quantity associated with the
transmitted measurement unit. The instrument
measures distance. The other quan
tities are
calculated based on the specified container
parameters and material properties.
EView2 settings:“Device Settings” →
“Measurement configuration” →“Measurement
mode.”
a
Measurement mode
Transmitted value
0
Distance
Distance
1
Level
Level
2
Volume
Volume
3*
Mass
Mass
4
Flow
Volumetric flow
* See: P32
A: Shortest measurable distance
H: Maximum measurable distance, also the
distance to the zero level
Transmitted value
DIST
LEV=H-DIST
Parameters to set
P00
P01a = 0
P05 ≥ Xm
P00
P01a = 1
P04 = H
P05 ≥Xm

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A: Shortest measurable distance
H: Maximum measurable distance, also the
distance to zero level
B: Volume associated with the highest
measurable level
C: Total volume of the tank
Transmitted value
VOL
fP40…P45(H-DIST)
Parameters to set
P00
P01a = 3
P02b
P04 = H
P05 ≥Xm
P40…P45
P02: - c b a Calculation units FACTORY DEFAULT: 000
a
Temperature
The unit of temperature can be selected at this point.
EView2 setting:“Device Settings” →“Measurement configuration” →“Temperature.”
0
°C
1
°F
b
Volume
*Weight (set also P32)
Volume flow
Metric
US
Metric
US
Metric
US
0
m3
ft3
tons
lb (pound)
m3/time
ft3/time
1
liter
gallon (BR)
tons
tons (BR)
liter/time
gallon/time
2
liter
gallon (US)
tons
tons (US)
liter/time
gallon/time
The unit of measure of the transmitted quantity for an instrument set to measure volume, mass or flow. The contents of the ta
ble is interpreted
in accordance with
P00c, P01a and P02c. The instrument converts the measured level into volume, weight, or flow by calculating using a level-
dependent (non
-linear) function or output correction table (OCT) according to P40. This parameter also gives the unit of measure of the “Output”
column of the OCT table
.
EView2 setting: “Device Settings” →“Measurement configuration” →“Engineering units.”

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c
Time
The unit of measure of the time base for flow measurement.
EView2 setting:“Device Settings” →“Measurement configuration” →“Time.”
0
s
1
min
2
hour
3
day
Caution!
The EasyTREK is a level transmitter. Various factors required for weight measurement significantly affect the accuracy!
P03: - - - a Temperature compensation mode FACTORY DEFAULT: 0
a
Temperature compensation
mode
The operating mode of the temperature compensation for distance measurement:
Automatic: The compensation is calculated using the value measured by the temperature sensor.
Manual: The compensation is calculated a fixed setpoint temperature value in P07 independently of
the measured value.
EView2 setting:“Device Settings” →“Measurement optimalization” →“Temperature
compensation.”
0
Automatic
1Manual
P04: - - - - Maximum Distance to be Measured (H) FACTORY DEFAULT: XMas per chart.
This parameter must always be set, except for distance measurement!
Maximum measuring distance XM [m (ft)]
The maximum distance to be measured is the longest distance between the
surface of the transducer and the farthest level to be measured.
The factory-programmed longest distances (DEFAULT values), which
can be
measured (XM
) by the units, are listed in the table below. For the actual
application, the maximum distance to be measured
(H), i.e., the distance
between the sensor and the bottom of the tank, must be entered in P04.
Since the level is determined by calculating the difference between the value set
in P04 and distance (DIST) is measured
by the unit, the correct value of (H)
must be set in P04. It is suggested that this distance is measu
red in the empty
tank to obtain the highest accuracy.
EView2 setting:
“Device Settings” →“Measurement configuration” →“Measuring distances”
Transducer material: PP / PVDF
SP

–5A
3 (10)
SP

–59
5 (17)
SP

–58
8 (26)
SP

–57
10 (33)
SP

–56
12 (40)
SP

–54
18 (60)

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P05: - - - - Minimum measuring distance (Dead zone – Close-end blocking) FACTORY DEFAULT: Xm as per chart
Minimum measuring distance Xm [m (in)]
The range, beginning at the sensor’s surface, within which (due to the physical
limitations of ultrasonic measurement) measuring is impossible, is called the
dead zone. The EasyTREK will not accept any echo within the blocking distance
set here.
Close-end blocking could be considered an extension of the dead zone, within
which echoes will not be used. Thus, the exclusion of interfering objects near the
sensor becomes possible.
Automatic Close-end blocking = Dead Band control (P05 = Xm)
Reverting to the factory default will automatically set the shortest possible dead
zone depending on the operating conditions. It will be shorter under optimal
conditions and somewhat longer in unfavorable circumstances than the value
given in the chart.
Manual Close-end-blocking with limitation ≥ dead zone (P05 > Xm)
By entering a value higher than the factory default, 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..
EView2 setting: “Device Settings” →“Measurement configuration” →
“Measuring distances”
Sensor material PP / PVDF
SP

–5A
0.15 (6)
SP

–59
0.18 (7)
SP

–58
0.2 (8)
SP

–57
0.25 (10)
SP

–56
SP–54 0.35 (12)

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P06: - - - - Far-end blocking FACTORY DEFAULT: 0
Far-end blocking is the range below the level set in parameter
P06
. It can be used to avoid interference from a stirrer or
heater at the bottom of the tank.
The device uses special signals for echoes in this range.
A.) Measuring level or volume
Level sinking below
•the value of P06 current output transmits the value of far-
end blocking
•below SUB 0 (7/8 of P06) the ERROR CODE 10 is
transmitted via HART
•Level rising over value of far-end blocking:
The calculation of the level and volume is 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 is used for those small levels below which the accurate flow calculation is no longer
possible.
•Level in the flume/weir sinking below the blocked out range:
-Output current value will be corresponds 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 excluded range:
The calculation of flow will be based on the programmed flume/weir data; therefore the measurement
values are no affected in any way by the far end blocking value.
P06= 0 to disable remote blocking.
EView2 setting: “Device Settings” →“Measurement configuration” →“Blocking.”

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P07: - - - - Temperature compensation with fixed value FACTORY DEFAULT: +20 ˚C
Manual temperature compensation value, if P03a = 1 (Manual).
EView2 setting: “Device Settings” →“Measurement optimalization” →“Temperature compensation” →“Value.”
5.3.3 CURRENT OUTPUT
P08: - - - - Output current fixed value FACTORY DEFAULT: 4 mA
Fixed current output setting parameter. See parameter P12.
With this parameter, the output current can be set to a fixed value between 3.8 mA and 20.5 mA.
This automatically overrides the 4 mA value set by the HART multidrop mode and the analog output current is deactivated.
EView2 setting: “Device Settings” →“Outputs” →“Fix output current.”
P10: - - - - Value (of distance, level, volume or flow) assigned to 4 mA current output FACTORY DEFAULT: 0
EView2 setting: “Device Settings” →“Outputs” →“Assignment of 4mA.”
P11: - - - - Value (of distance, level, volume or flow) assigned to 20 mA current output FACTORY DEFAULT: XM– Xm
(see tables P04 and P05)
Values are modified by P01a. The (measured or calculated) process value can be assigned to the current loop output either directly or inversely.
For example, assigning 1 m to 4 mA and 10 m to 20 mA represents direct proportion and assigning 1 m to 20 mA and 10 m to 4 mA is inverse
proportion.
EView2 setting: “Device Settings” →“Outputs” →“Assignment of 20 mA.”
Transmitting level
A: Shortest measurable distance
D: diagram valid for default
values of P10 and P11