FineTek JTR Technical manual

1
JTR Guided Wave
Radar Level Sensor
Operation Instruction
FineTek Co.,Ltd.
No.16, Tzuchiang St., Tucheng Industrial Park, New Taipei City 23678
Tel：[phone] Fax：[phone]
Website：http://www.fine-tek.com E-mail:[email protected]
08-JTR3-B6-EK,07/17/2020

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TABLE OF CONTENTS
1.Introduction………………………………………………………………………………..4
2.Product warranty………………………………………………………………………….5
2.1 New product warranty.............................................................................................5
2.2 Repair Warranty......................................................................................................6
2.3 International Service Office.....................................................................................6
3. Product Inspection………………………………………………………………………..7
3.1 Configuration..........................................................................................................7
3.1.1 Model Label.........................................................................................................7
3.1.2 Product contents..................................................................................................7
3.2 Safety Check ..........................................................................................................7
4. Product Introduction……………………………………………………………………..8
4.1 Product Principles...................................................................................................8
4.2 Advanced Functions ...............................................................................................8
4.2.1 Bottom signal enhancement & tracking technology.............................................8
4.2.2 Dual-Level interface measurement......................................................................9
5. Features……………………………………………………………………………………10
6. Specification……………………………………………………………………………...11
7. Installation…………………………………………………………………….…………..15
7.1 General Instructions.............................................................................................. 15
7.1.1 Lock instrument ................................................................................................. 15
7.1.2 Moisture proof instructions.................................................................................15
7.1.3 Operating conditions.......................................................................................... 15
7.2 Installation Instruction...........................................................................................16
7.2.1 Installation site...................................................................................................16
7.2.2 Feeding tank installation precautions................................................................. 18
7.2.3 Blind area ..........................................................................................................18
8 Wiring Instruction………………………………………………………………………..19
8.1 Preparations .........................................................................................................19
8.1.1 Please note the following safety precautions before use:..................................19
8.1.2 Connecting cable...............................................................................................19
8.1.3 Power supply..................................................................................................... 19
8.2 Wiring Instructions:............................................................................................... 20
8.2.1 Connection methods.......................................................................................... 20
8.2.2 Wiring steps.......................................................................................................20
8.3 Startup Instructions...............................................................................................22
9. Display Module Adjustment and Setting……………………………………………23
9.1 Operation Steps.................................................................................................... 23

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9.1.1 Adjustment.........................................................................................................24
9.2 Menus...................................................................................................................24
9.2.1 Measurement Settings Menu............................................................................. 25
9.2.2 Display settings Menu........................................................................................27
9.2.3 Diagnostics........................................................................................................29
9.2.4 Additional Settings Menu ...................................................................................30
9.2.5 Product Information Menu ................................................................................. 31
9.3 Parameter table list...............................................................................................32
9.4 Bottom Tracking Probe Set up..............................................................................34
10. Warnings and Cautions………………………………………………………………..36
11. Troubleshooting………………………………………………………………………...37
12. Communication Protocol Table………………………………………………………38

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1. Introduction
Thank you for purchasing FineTek products. This operation manual will describe(s) the product's
characteristics, working principle, operation, maintenance and troubleshooting, helping users
familiarize with the product and avoid mishap from incorrect usage.
Before using the product, please read this operation manual carefully.
If you require further clarifications or details, please contact our company.
Product updates will be uploaded onto our company website at www.fine-tek.com; users may
download the information from there.
Please do not disassemble or repair the product yourself; otherwise the warranty will become
invalid. Do send the item back to our company instead, or contact our customer hot-line for
help.
Warning Symbol：
Danger→indicates possibility of major or fatal disaster if operation is goes wrong.
Attention→indicates possibility of a certain degree of injury & equipment damage if the
operation goes wrong.
Electric Shock →indicates possibility of receiving an electric shock.
Fire →a warning that fire may occur
Prohibited →Forbidden operation.

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2. Product warranty
2.1 New product warranty
FineTek products are guaranteed a warranty period of 12 months starting from the date of
delivery whereby the cost of testing, replacement parts, repairs and other expenses are
waived.
If product is damaged during delivery, you may request for a replacement within 7 days.
If product needs to be sent back to FineTek for repairs, please avoid disassembling it
yourself. In addition, product needs to be packed properly to avoid damage during shipping.
Product warranty is only applicable to items that are used and installed accordingly. It does
not cover items that are used extraordinarily or outside its scope of operations.
The following conditions will result in product not be covered by warranty; testing,
replacement parts & repair costs will be charged.
The warranty period for part or whole product has expired.
Product damage due to failure in using the operation manual properly or poor operating
environment.
Product damage due to force majeure (e.g. natural disasters), carelessness (e.g. scratch, fall,
heavy blow), negligence (e.g. use of inappropriate voltage, corrosion, improper storage) or
other abnormal factors.
Customer or user had installed, modified or repaired the product not authorized or approved
by FineTek.

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2.2 Repair Warranty
All repaired products will be provided with a 6 months warranty period. During this period, free
repair and servicing will be provided if the same problem surfaces again.
2.3 International Service Office
Company
Address
Telephon
Fax
Taipei Headquarters
(Taiwan)
No.16, Tzuchiang St., Tucheng
Industrial Park, New Taipei City
23678
[phone]
[phone]
Taichung
Sales office
(Taiwan)
[phone]
[phone]
Kaohsiung
Sales office
(Taiwan)
[phone]
[phone]
Fine automation
Co., Ltd.
(China)
No. 451, Duhui Road, Zhuanqiao
Township, Minhang District,
Shanghai City 201109
[phone]
[phone]
Aplus FineTek
Sensor Inc.
355 S. LemonAve, Suite D
Walnut, CA 91789
1 909 598-2488
1 909 598-3188
FineTek Pte Ltd.
(Singapore Branch)
37 Kaki Bukit Place, Level 4
Singapore 416215
[phone]
[phone]
FineTek GmbH
(Germany Branch)
Bei den Kämpen 26
21220 Seevetal-Ramelsloh,
Germany
[phone]
[phone]
FineTek Co., Ltd.
(Indonesia Branch)
PERGUDANGAN TUNAS BITUNG
JL. Raya Serang KM. 13,8, Blok C3
No. 12&15, Bitung Cikupa,
Tangerang 15710
[phone]
[phone]

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3. Product Inspection
3.1 Configuration
3.1.1 Model Label
The model label includes the product specification such as type, power supply, output mode,
ambient temperature, process temperature and process pressure.
3.1.2 Product contents
1. Sensor
2. Documents
Operation manual
Inspection certificate of measurement accuracy (Optional)
3.2 Safety Check
Before unpacking, please check the package first for any damages or deformities. If yes, take
photos for evidence.
After unpacking, please check if the products inside are deformed or damaged or have quality
issues. If yes, take photos for evidence.
Check that the item and its quantity match your order.
If there are any issues with your product, please contact our company within 7 days (attach
photos); otherwise, free replacements or repairs will not be provided.

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4. Product Introduction
4.1 Product Principles
The guided wave radar emits a high-frequency pulse wave to be transmitted along with the
detection component (steel rope or connecting rod). When it comes in contact with the
object to be measured, the pulse wave will be reflected and some of the energy will be
reflected as well due to the different dielectric constant of air and the material. The time
difference between the reflection wave and the emission wave can be used to calculate
the distance between the surface of the measured object and the guided wave radar level
sensor.
4.2 Advanced Functions
4.2.1 Bottom signal enhancement & tracking technology
The product is equipped with a bottom tracking probe technology. This function is very
useful in increasing the sensitivity when the dielectric constant of the measured object is
low, such as the plastic particles, material fragments or that in the liquefaction container.
When the dielectric constant is 3~10, the bottom tracking probe function will be enabled
automatically as long as the echo signal is not detected. The measurement value is
calculated based on the dielectric constant recorded the last time. In this case, the
instrument accuracy depends on the stability of the dielectric constant.
If the dielectric constant of the media is lower than 3, the bottom tracking probe function
will be enabled all the time. Under this circumstance, you must input the dielectric constant
of the media, which is quite important for measurement.
※Please check chapter “Bottom Tracking Probe Set up”for details of setting.

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4.2.2 Dual-Level interface measurement
The high-frequency micro wave pulse travels along the steel rope or the connecting rod.
When it reaches the media surface, a part of the micro wave pulse will be reflected.
Another part will penetrate the media in the upper layer (L1), and the second reflection will
take place on the interface between the upper (L2) and lower (L1) interface layers. The
two periods of pulse running will be calculated by the PCB inside the instrument, which
also outputs two levels.
※Measurement condition of dual-level interface:
Media on the upper layer (L2):
L2 must be non-conducting media. The dielectric constant of the media in L2 or the actual
distance towards the interface is known. The dielectric constant of the media in L2 must be
larger than 1.6. The media must be stable without change or mixture. Moreover, it must be
uniform. The minimum thickness of the media in L2 should be larger than 50mm
(1.97-inch), and L2 must be clearly separated from the lower layer (L1). In case of
emulsion phase or chipping layer, the maximum thickness should be 50mm (1.97-inch). It
should be without foam on the surface if possible, so it will get better measurement results.
Media on lower layer (L1):
The dielectric constant of L1 must be 10 larger than that of L2 at minimum, and the
conducting media is recommended. For example, if the dielectric constant of L2 is 2, the
dielectric constant of L1 should be 12 at least.
Gas layer (L3): It is the mixture of air or gas.
Output signal setting of dual-level interface measurement:
This instrument requires applying the setting in “level measurement”, which should be
applied in dual-level interface measurement. You may select dual-analog output version
and adjust the settings.

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5. Features
It meets the measurement requirements of different temperatures, pressures and media.
Based on the contact measurement, it can overcome the effects from steam, foam and
stirring.
2-wire loop power for simple wiring
Local LCM display for convenient on-site adjustment.
Unique algorithm and echo processing technology can be applied in various complicated
conditions.
Echo wave graphics display function, to show the signal waveform inside the tank,can be
used for background noise processing.

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6. Specification
Model
JTR302
JTR30A
JTR301
JTR305
Applicable
environment
Solid/Powder/Particle
Liquid/solid
Liquid
Low Dielectric
Liquid
Measuring scope
Rod type:6m
Cable type:20m
Rod type:6m
Rod type:6m
Cable type:20m
Coaxial type:6m
Connection
1"PF
1"(3A)
3/4"PF
Min. Dielectric
coefficient
2.0
1.6
Ambient
Temperature
-40~80℃(Applied for Ex-proof, as: ATEX、CSA、IECEx、TS：T2~T5 -40~70℃/ T6
-40~55℃, NEPSI：-40~60℃).
Operating
temperature
Standard type, -40~150℃
Hi-temperation type, -40~230℃
Operating pressure
0~60 bar(25℃)
Accuracy
±5 mm or ±0.1% F.S. Whichever is greater
Analog output
4~20 mA
Power supply
16~30 Vdc Loop Power,16~30 Vdc 4-wire, 5~10Vdc RS485 4-Wire
Digital
communication
HART 7.3 for 2-Wire, RS485(Modbus) for 4-Wire
Housing material
Aluminum alloy
Load Impedance
(VS-16)/0.022A Ohm for 2-wire; 300 Ohm for 4-wire>16V
IP Protection rating
IP67
Dead band
High constant coefficient (ε＞10)：Upper dead band ＜100mm,
Lower dead band ＜50mm
Low constant coefficient (ε＜10)：Upper dead band ＜500mm,
Lower dead band ＜100mm
Ex-PROOF
(option)
NEPSI Ex ia IIC T2~T4 Ga
IECEx Ex ia IIC T2~T6 Ga
ATEX II 1G Ex ia IIC T2~T6 Ga
CSA Class I, Zone 0, AEx ia IIC T2~6 Ga;
Class I, Division 1, Groups A, B, C & D, T2~6
TS Ex ia IIC T2~T6 Ga
※Must equipped with intrinsic safety barrier to form a standard intrinsically safe system (Ex ia).

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Intrinsically safe parameters
TEX、CSA、IECEx、TS：
Model series
Power circuit
Input entity parameters
Output entity parameters
JTR30XD
Loop Power 16~30Vdc X
2 with HART, by 2-core
wire via terminal blocks
J1 and J2
Loop Power 1 In (V1+, V1-):
Ui = 30V
Ii = 100 mA
Pi = 0.7W
Ci = 0
Li = 0
Loop Power 2 In (V2+, V2-):
Same as above
None
JTR30XB
Loop Power 16~30Vdc
with HART, by 2-core wire
via terminal blocks J1
Loop Power In (V+, V-):
Ui = 30V
Ii = 100 mA
Pi = 0.7W
Ci = 0
Li = 0
None
JTR30XH
4-Wire 16~30Vdc
4~20mA with RS485, by
2-core wire via terminal
blocks J1 and J4
RS-485 In (D+, D-)＊:
Ui = 12V
Ii = 100mA
Pi = 0.3W
Ci = 0
Li = 0
Power In (V+, V-):
Ui = 30V
Ii = 100mA
Pi = 0.7W
Ci = 0
Li = 0
Analog Out 1 (I+, I-):
Uo = 13.65V
Io = 69mA
Po = 0.236W
Co = 0.79μF
Lo = 7468μH
Through 2-core wire via
terminal block J2
Analog Out 2 (I2+, I2-):
Uo = 13.65 V
Io = 69mA
Po = 0.236W
Co = 0.79μF
Lo = 7468μH
Through 2-core wire via
terminal block J3
JTR30XE
4-Wire 16~30Vdc
4~20mA with RS485, by
2-core wire via terminal
blocks J1 and J4
RS-485 In (D+, D-)＊:
Ui = 12V
Ii = 100mA
Pi = 0.3W
Ci = 0
Li = 0
Power In (V+, V-):
Ui = 30V
Ii = 100mA
Pi = 0.7W
Ci = 0
Li = 0
Analog Out 1 (I+, I-):
Uo = 13.65V
Io = 69mA
Po = 0.236W
Co = 0.79μF
Lo = 7468μH
Through 2-core wire via
terminal block J2
JTR30XF
4-Wire 5Vdc with RS485,
by 2-core wire via
terminal blocks J1 and J4
RS-485 In (D+, D-)＊:
Ui = 12V
Ii = 100mA
Pi = 0.3W
Ci = 0
Li = 0
Power In (V+, V-):
Ui = 10V
Ii = 300mA
Pi = 0.7W
Ci = 0
Li = 0
None
＊Note: Feedback signal
parameter for 'RS-485 In' is:
Uo = 5.88V
Io = 12.5mA
Po = 18.5mW
Co = 43μF
Lo = 3555μH
＊Note: Feedback signal
parameter for 'RS-485 In' is:
Uo = 5.88V
Io = 12.5mA
Po = 18.5mW
Co = 43μF
Lo = 3555μH
＊Note: Feedback signal
parameter for 'RS-485 In' is:
Uo = 5.88V
Io = 12.5mA
Po = 18.5mW
Co = 43μF
Lo = 3555μH

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NEPSI：
Terminal
Code
(Power)
Max. Voltage
Input
Ui (V)
Max. Current
Input
Ii (mA)
Max. Power
Input
Pi (W)
Max. Internal equivalent
parameter
Ci (µF)
Li (mH)
V1+，V1-
V2+，V2-
30
100
0.7
0
0
V+，V-
30
100
0.7
0
0
10
300
Terminal
Code
(RS485)
Max. Voltage
Input
Ui (V)
Max. Current
Input
Ii (mA)
Max. Power
Input
Pi (W)
Max. Internal equivalent
parameter
Ci (µF)
Li (mH)
D+，D-
12
100
0.3
0
0
Max. Voltage
Output
Uo (V)
Max. Current
Output
Io (mA)
Max. Power
Output
Po (mW)
Max. External Parameter
Co (µF)
Lo (mH)
7
15
25
See below
Terminal
Code
(AO)
Max. Voltage
Input
Ui (V)
Max. Current
Input
Ii (mA)
Max. Power
Input
Pi (W)
Max. Internal equivalent
parameter
Ci (µF)
Li (mH)
I+，I-
I2+，I2-
15
70
0.25
0
0
Max. Voltage
Output
Uo (V)
Max. Current
Output
Io (mA)
Max. Power
Output
Po (W)
Max. External Parameter
Co (µF)
Lo (mH)
14
70
0.25
See below
Terminal
Code
Total
Co (µF)
Lo (mH)
D+，D-
I+，I-
I2+，I2-
0.5
1.0

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Measuring range
JTR301 / JTR305
Dielectric
constant (εr)
Typical liquids
Steel wire
cable type
Rod type
Coaxial
type
1.6~2.0
liquefied gas, e.g. propane
solvent
Freon
palm oil
Need special model
with S5 type float
6m
2.0~2.5
mineral oils, fuels
12m
6m
6m
2.5~4.0
benzene, styrene, toluene
furan
naphthalene
14m
6m
6m
4.0~7.0
chlorobenzene, chloroform
cellulose spray
isocyanate, aniline
16m
6m
6m
＞7.0
aqueous solutions
alcohols
ammonia
20m
6m
6m
JTR302
Dielectric
constant (εr)
Typical bulk solids
Steel wire cable
type
Rod type
2.0~2.5
portland cement
plaster
plastic granulate
12m
6m
2.5~4.0
grain, seeds
flour
ground stones
sand
14m
6m
4.0~7.0
naturally moist stones, ores
salt
16m
6m
＞7.0
metallic powder
carbon black
coal
20m
6m

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7. Installation
7.1 General Instructions
7.1.1 Lock instrument
When locking the instrument and the tank, the suitable hex wrench should be used to
fasten it.
Note! During the installation, please apply force on the hex screw to fasten it.
Don’t apply force on the instrument housing because it may damage the internal
parts.
7.1.2 Moisture proof instructions
During the installation, you may take the following measures to protect the instrument from
moisture:
Use the appropriate cable (The standard cable for this instrument is 1/2"PF cable connector)
Fasten the cable connector
Direct the cable connector downwards when installing, so as to prevent moisture
When connecting with the cable, leave a small segment of cable hanging down
in front of the fixing header.
Prevent moisture from entering the housing along the cable.
Please pay special attention to moisture proofing when the product is applied
in the following environments:
Outdoor installation
Installation in areas with estimated high moisture (such as cleaning process equipment)
Installation in cooling or heating containers
7.1.3 Operating conditions
When using the instrument, please check whether the specification of all parts meets the
operating environment where it is exposed, including:
Measuring sensor
Connecting or fixing thread or flange
Sealing material
Especially the following conditions in the specification:
Operating pressure
Operating temperature
Properties of chemical media
Abrasion and mechanical effects
Note! If the instrument is applied in the pressure tank or the low-pressure container, it must be
sealed when fixing during the installation. Before usage, it must be checked as to whether the
operating temperature of the sealing material meets the ambient temperature.

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7.2 Installation Instruction
7.2.1 Installation site
Pay attention to the following when installing JTR3 series products. When it is installed in a
metal container, the distance between the container parts and the inner wall should be at
least over 300mm. For non-metal containers, the distance to the inner wall should be at
least over 500mm. During the operation, make sure the sensor doesn’t get into contact
with any device or tank wall. When using the sensor of a steel rope, it is recommended
fixing the sensor bottom in the tank to reduce the vibration to the sensor. For the tanks with
core shape at the lower part, it is recommended installing the product in the center of the
container to measure the lowest point at the bottom.
※Please note the upper/lower blind area of the instrument. It can’t measure the lowest point of
the sensor.
Note! When welding is required for the installation, please remove the electronic module of
the sensor from the junction box before welding. It can prevent the damage on the
electronic device due to the inductive coupling or other abnormalities.
Plastic container/glass container
The measuring principle of guided wave radar requires a metal plane at the process junction
point. Therefore, when it is used in the plastic container, it requires an instrument with flange
(since DN 50) or a metal plate (ø > 200 mm/8 in) placed under the process connection.
Note, the metal plate should be connected with the process connection directly. When installing
the measuring sensor of the connecting rod or steel rope in the plastic container without a metal
wall, the measuring value will be affected by the strong electromagnetic field (The interference
emission based on EN 61326: Class A). In this case, please use the co-axis measuring sensor.
Metal Tank
D>300mm
Non-metal Tank
D>500mm

17
.
During the installation, don’t use extension pipe on the container. Kindly install the sensor and
the container cap flush with the ground.
※When welding the connector of the extension pipe, please make the edge of the
extension pipe connector flush with container cap.

18
7.2.2 Feeding tank installation precautions
Please don’t install the instrument at the feeding port. The instrument must be in a position with
stable media rather than a position with liquid flow. It can’t provide accurate measurement when
the liquid flows in.
7.2.3 Blind area
The measuring range is from the bottom of flange or hread.
※Note, t he measuring range is from the reference to the bottom of the sensor, but not
including the upper/lower blind areas. For the default measuring range of the instrument, it is
set based on the media, “water”.

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8 Wiring Instruction
8.1 Preparations
8.1.1 Please note the following safety precautions before use:
The instrument wiring is only permitted when it is powered OFF.
If overvoltage occurs to the wire, please install overvoltage protection device to protect the
instrument.
8.1.2 Connecting cable
The instrument can be connected with the general 2-core wire without the shielding layer
available on the market.
If electromagnetic coupling phenomenon occurs to the installation and wiring environment, and
the value exceeds the inspection value of EN61326-1 Standards applicable to the industrial
field, the cable with shielding cable should be used. For the instrument with housing and cable
screw thread connector, please use the cable with circular cross-section. Please check the
external diameter of the cable applicable to the cable screw thread connector, so as to ensure
the sealing on the cable screw thread connector (IP protection method). Please use the cable
screw thread connector matching with the cable diameter.
Note!
When wiring, please follow the requirements of DIN EN 61140 VDE 0140-1(Protection against
electric shock - Common aspects for installation and equipment), to guarantee the safety
isolation between the power circuit and the grid circuit.
When the cable with shielding isolated mesh is used, it is recommended setting up the
shielding isolated mesh on both sides of earth potential. In the sensor, the shielding isolated
mesh must be directly connected with the internal grounding terminal. The external grounding
terminal on the housing must be connected with the low impedance of the earth potential. For
explosion-proof equipment, it should perform grounding based on the requirements on the
license.
For the electroplating and KKS equipment (cathodic anticorrosion protection), the great
potential difference should be considered. When the shielding isolated mesh is grounded on
both sides, it may cause the current of the shielding isolated mesh to exceed the permitted
scope.
8.1.3 Power supply
The product is connected with a 2-core wire to supply power and send current signal
Working voltage (Vs):
With display adjustment module: 16~30VDC
Load impedance:(Vs-Vmin)/0.022A
For example: When supplying 24VDC for the instrument with display adjustment module:
(24-16)/0.022 = 363Ω

20
8.2 Wiring Instructions:
8.2.1 Connection methods
When wiring, make the 2-core wire go through the
enclosure, and make a connection based on the
positive/negative power supply as marked on the
nameplate. A flathead screwdriver may be used for
connection.
8.2.2 Wiring steps
Please follow the steps below:
1. Remove the cover on the housing.
2. Remove the display module by rotating it counterclockwisely.
3. Loosen the fixing screw on the cable screw thread connector
4. Remove the jacket of about 10cm (4in) on the cable, and remove the insulation of 1cm
(0.4in) at the core wire end.
5. Make the cable go through the cable connector, and insert it inside the housing.
6. Connect the wire to the terminal according to the wiring diagram
7. Pull it gently to check whether the wire is fixed firmly on the terminal
8. Connect the shielding with the terminal of the internal grounding wire, and connect the
terminal of the external grounding wire with the electric potential compensation.
9. Fasten the fixing screw of the cable screw thread connector, and make sure the sealing
ring is completely surrounding the cable
10. Re-assemble the display module.
11. Put on the housing cover to complete the electric connection
Wiring Diagram
2-wire type
JTR30XD series JTR30XB series
Note! For 2-wire loop power type: when equipped with two sets of analog outputs,
each circuit should be operated independently. Parallel connection of the two
circuits will cause abnormal current output.