NIVELCO EasyTREK SP-300 Assembly instructions

BKI 03 ATEX 027X ♦spa3804a0600p_02 ♦ 1 / 38
SP-300,SP-300 series
t wo-wire compact ult rasonic
level transmitter
INSTALLATION AND PROGRAMMING MANUAL
2nd edition
0408
HiTECH/NIVELCO
301 Oxford Valley Road, Bldg 505, Yardley, PA 19067
Tel.: [phone] ♦Fax: [phone]
Technical support: 888.NIVELCO (888.648-3526)
e-mail:[e-mail] ♦http://www.hitechtech.com

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Min. measuring distance )(X
m
Max. measuringdistanceof thedevice )
M
(X
Max. measurement range of the device
Device data Application data
Max. distance to be measured (H)
Automatic close-end blocking
Default: P05=X
m
Manual close-end blocking
Programmed: P05>X
m
Programmed measurement range
Transmitted range
Far endblocking
Defaults: P06=0
DIST = Distance (measured)
LEV = Level
(calculated: H-DIST )
VOL = Volume
(calculated from LEV)
Min. measuring distance
Measurement
BASIC CONCEPTSAND ELEMENTS
OF ULTRASONIC MEASUREMENT

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CONTENTS
1. INTRODUCTION....................................................................................5
2. TECHNICAL DATA ...............................................................................6
2.1 General data....................................................................................6
2.2 Additional data for Ex certified devices………………………………5
2.3 Special data.....................................................................................7
2.4 Accessories .....................................................................................7
2.5 Order codes (Not all combinations are available) ...........................7
2.6 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. Safety regulations for units with Ex approvals .............................13
5.3. Programming................................................................................14
5.3.1. Measurement configuration.......................................................14
5.3.2. Current output ...........................................................................20
5.3.3. Digital communication ............................................................... 21
5.3.4. Measurement optimisation ........................................................ 21
5.3.5. Volume (content) measurement................................................25
5.3.6. Open channel flow measurement .............................................26
5.3.7. 32-Point linearisation.................................................................32
5.3.8. Informational parameters (read out parameters) ......................33
5.3.9. Additional parameters for flow metering ...................................34
5.3.10. Other parameters ....................................................................34
6. MAINTENANCE AND REPAIR...........................................................34
7. ERROR CODES..................................................................................35
8. PARAMETER TABLE.........................................................................36
9. SOUND VELOCITY VALUES IN DIFFERENT GASES......................38

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Thank you for choosing a HiTECH/NIVELCO instrument.
We are sure that you will be satisfied throughout its use.
1. INTRODUCTION
A Total beam angle of 5°-7°at –3 dB as is featured by most of
HiTECH/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.
rr
D
XD
1 m 0,21 m
2 m 0,3 m
5 m 0,56 m
10 m 1 m
15m 1,45 m
X
m
X
M
Diameters
corresponding to
5° beam angle.
Application
The EasyTREK compact ultrasonic level transmitters from HITECH/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.
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 26. 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 25). 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 -22- 194ºF (-30°C…+90°)
Ambient temperature -22ºF....+ 176.F (-30 °C … +80°C)
Pressure** (Absolute) 0,05 … 0,3 MPa (0,5 … 3 bar) SS316Ti for sensors with stainless steel 0,09 ... 0,11 MPa (0,9 ... 1,1 bar)
Seals PP transducer: EPDM ; All other transducer versions: FPM
Ingress protection IP 68
11,8 … 36 V DC without HART communication
Power supply 1,2 … 36 V DC with HART communication
48 mW … 720 mW, Galvanic isolation; protection against
surge transients
Accuracy * ±(0.2% of the measured distance plus 0.05% of the range)
Resolution Depending on the measured distance: < 2 m: 1 mm, 2 ... 5 m: 2 mm, 5 ... 10 m: 5 mm, > 10 m: 10 mm
Analogue: 4 … 20 mA, (3,9 … 20,5 mA), Rtmax = (Ut– 11,4 V) / 0,02 A, Galvanic isolation; protection against surge transients
Outputs Serial communication: HART interface (terminal resistor 250 Ohm)
Electrical connection 2 x 0,5 mm2shielded cable ∅6mm x 3m (available max. length 30m)
Electrical protection Class III SELV
* Under optimal circumstances of reflection and stabilised transducer temperature.
** For pressures below 1 bar representative of Nivelco should be consulted.
2.2 ADDITIONAL DATA FOR EX CERTIFIED DEVICES
Ex marking II1G EEx ia IIB T6 IP68
Intrinsically safety data Ci ≤15 nF, Li ≤200
µ H, Ui ≤30 V, Ii ≤140 mA, Pi ≤1 W Ex-device should be powered by EEx ia power supply
Ex power supply, loading Uo < 30 V, Io < 140 mA, Po < 1 W, Voltage range 12 V … 30 V, Rtmax = (Ut– 12 V) / 0,02 A
Medium temperature For PP transducer –20 °C ... +70 °C, for PVDF transducer –20 °C ... +80 °C, for PTFE transducer –30 °C ... +90 °C
Ambient temperature -4ºF ....+ 158ºF (-20 °C … +70 °C)

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2.3 SPECIAL DATA
SPECIAL DATA FOR PP,PVDFAND PTFETRANSDUCERS (ALSO APPLIES TO EX MODELS)
Type SP-39-SP-38-SP-37-SP-36-SP-34-
Transducer material PP, PVDF PTFE PP, PVDF PTFE PP, PVDF PTFE PP or PVDF PP or PVDF
Max measuring distance * (XM) [m / ft] 4/13 3/10 6/20 5/16 8/26 6/20 10/33 15/49
Min. measuring distance*
(Dead band) [m / ft] 0.2/0,65 0.25//0,82 0.25//0,82 0.25//0,82 0.35/1,2 0.35/1,2 0.35/1,2 0.45/1,5
Total beam angle (-3dB) 6° 5° 7° 5° 5°
Measurement frequency 80 kHz 80 kHz 50 kHz 60 kHz 40 kHz
Process connection 1” BSP and 1 ½” BSP/NPT 1” BSP and 2” BSP/NPT 1” BSP and 2” BSP/NPT 1” BSP 1” BSP
* (from the transducer face)
2.4 ACCESSORIES
•Warranty certificate
•Installation and programming manual
•Certificate of conformity
2.5 ORDER CODES (NOT ALL COMBINATIONS ARE AVAILABLE)
EasyTREK S P – 3 –
HOUSING MATERIAL CODE RANGE *M/FEET CODE PROCESS CONNECTION CODE OUTPUT /EXCODE
PP A 15/49 4 1”; 2” BSP thread 0 4 … 20 mA / HART / LOGGER 3
PVDF B 10/33 6 2” NPT thread N 4 … 20 mA / HART 4
PTFE / PP T 6/20 ; 8/26 7 1” BSP quick conn. / PP F 4 … 20 mA / HART / LOGGER / Ex 7
5/16 ; 6/20 m 8 Bracket 200 mm K 4 … 20 mA / HART / Ex 8
3/10 ; 4/13 9 Bracket 500 mm L
Bracket 700 mm M
Certified devices bear the „Ex” tag in the order
code
* Measuring range depends on the material of the transducer

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2.6 DIMENSIONS
EasyTREK
SP-39-/ PP, PVDF,
PTFE
EasyTREK
SP-38-/ PP, PVDF,
PTFE
EasyTREK
SP-37-/ PP, PVDF,
PTFE
EasyTREK
SP-36-/ PP, PVDF,
PTFE
EasyTREK
SP-34-/ PP, PVDF,
PTFE
1 ½ ” BSP o r N PT
~199
2 ” BSP o r N PT
~199
2 ” BSP o r NPT
~192
~192
~173

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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 1 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.
Dmin
L S P – 39 S P – 38 S P – 3 7 
150 50 60 60
200 50 60 75
250 65 65 90
300 80 75 105
≤
250
≥ ∅ D 100
L
Dmin.
Dmin
L S P – 34 
90 *
200 *
350 *
500 *
* For values contact your distributor
≤
350
≥ ∅ D 100
L
Dmin.

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3.2 OPEN CHANNEL FLOW MEASUREMENT
•The unit is suitable for open cannel flow measurement with the constructive works listed in 5.3.6.
•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 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
White
Brown
Black
Junction box
•Make sure the terminals in the box are not under
power (Use shielded cable 2 x 0,5 mm2
suggested in the technical data or stronger).
•After powering the necessary programming can
be performed.
Wire colours:
White - I+ positive point of the power supply and HART
Brown - I- negative point of the power supply and HART
Black - GND Shielding to be grounded at the controller
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.
LEDindication:
•ECHO-LED
ON, if the unit detects proper echo
•COM-LED
Blinking on HART communication
Is ON in the state of remote programming
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.
Red LED
„ECHO”
Red LED
„COM”
Cable
View of the transmitter neck from above:

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5.2. SAFETY REGULATION FOR THE EX APPROVED UNITS
Diameter of the cable should match the cable conduit.
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.
Transmitter can only be powered by certified intrinsically safe current loop.
The enclosure of the transducer is plastic that can be loaded electro-statically therefore:
•Filling and emptying speed should be selected according to the medium
•Fog development of the dangerous material during filling should be avoided.
•Cleaning of the plastic enclosure is not allowed in hazardous space.
The apparatus is not suitable for flame-barrier between the space and the outside area.
Serial number
Production year
Output
Ambient
temperature

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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
- EView 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
Engineering units
(according to “c”)
b 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 LEV
2 Level %
Level LEV%
3 Volume VOL
4 Volume %
Volume VOL%
5 Flow Flow FLOW
A
X m
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
DIST
H
VOL
0
VOL%
0100 [%]
P10
P11
B C
D
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
°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)]
Volume Weight (set also P32) Volume flow
b Metric US Metric US Metric US
m3ft3- lb (pound) m3/time ft3/time
1 litre Gallon Tons tonnes litre/time gallon/time
c Time
s
1 min
2 hour
3 day
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.
P04 - - - - Maximum Distance to be Measured (H) FACTORY DEFAULT: XMa as 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.
Maximum measuring distance XM[m/feet]
EasyTREK
Level transmitter for liquids Transducer material PP / PVDF Transducer material PTFE
SP_-39 4/13 3/10
SP_-38 6/20 5//16
SP_-37 8/26 6/20
SP_-36 10/33 -
SP_-34 15/49 -
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.
Automatic 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.
Minimum measuring distance Xm [m/feet]
EasyTREK
for liquids Sensor material PP / PVDF Sensor material PTFE
S-39 0,2/0,65 0,2/0,65
S-38 0,25/0,82 0,25/0,82
S-37 0,35/1,2 0,35/1,2
S-36 0,35/1,2 -
S-34 0,45/1,5aggregation -

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P04
P46
hP06
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
20mA
4mA
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.

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5.3.2. CURRENT OUTPUT
P08: - - - - Fixed current output FACTORY DEFAULT: 0
By this step the output current can be set for a fix value selected from between 3,8 mA and 20,5 mA. This function is not operational as per the
factory default: 0. Attention: fixing output current will make settings in P10, P11, P12 and P19 irrelevant.
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
A 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 4mA 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. Please note that in case
of programming for (LEV or VOL) % measurement the min and max value has to be entered in the relevant engineering units of LEV (m, ft) or
VOL (m3, ft3).
Transmitting level
LEV
20,5 mA
3,8 mA
P11
P10 I
out
04 20
[mA]
A
DIST H
D
A: Smallest measurable dist.
D: diagram valid for default
values of P10 and P11
P12: - - - a Error indication by the current output FACTORY DEFAULT: 0
In case of error the EasyTREK will provide one of the current outputs below for the time the error prevails. (For errors see Chapter 7).
aError indication by output current
0HOLD (hold last value)
13,6 Ma
2 22 mA