Endress+Hauser Nivector FTI26 User manual

Products Solutions Services
Operating Instructions
Nivector FTI26
Capacitance
Point level switch for powdered and fine-grained solids
BA01832F/00/EN/03.19
71454256
2019-10-01

Nivector FTI26
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Nivector FTI26 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Document function ..................... 4
1.2 Symbols ............................. 4
1.3 Electrical symbols ...................... 4
1.4 Symbols for certain types of information ...... 4
1.5 Symbols for graphics .................... 5
1.6 Documentation ........................ 5
1.7 Standard documentation ................. 5
1.8 Supplementary documentation ............. 5
1.9 Certificates ........................... 5
2 Basic safety instructions ............ 6
2.1 Requirements for the personnel ............ 6
2.2 Designated use ........................ 6
2.3 Workplace safety ....................... 6
2.4 Operational safety ...................... 7
2.5 Product safety ......................... 7
2.6 IT security ............................ 7
3 Product description ................ 8
3.1 Product structure ...................... 8
4 Incoming acceptance and product
identification ...................... 9
4.1 Incoming acceptance .................... 9
4.2 Product identification ................... 9
4.3 Storage and transport .................. 10
5 Installation ....................... 11
5.1 Installation conditions .................. 11
5.2 Mounting the measuring device ........... 11
5.3 Post-installation check .................. 14
6 Electrical connection .............. 14
6.1 Connection conditions .................. 14
6.2 Connecting the measuring device .......... 14
7 Commissioning .................... 17
7.1 Function check ....................... 17
7.2 Commissioning with an operating menu ..... 17
7.3 Light signals (LEDs) .................... 17
7.4 Function of LEDs ...................... 18
7.5 Operation with test magnet .............. 18
8 Diagnostics and troubleshooting ... 21
8.1 Diagnostic information via LED indicator .... 21
9 Maintenance ..................... 22
9.1 Cleaning ............................ 22
10 Repair ............................ 22
10.1 General information ................... 22
10.2 Spare parts .......................... 22
10.3 Return .............................. 22
10.4 Disposal ............................ 22
11 Accessories ....................... 22
11.1 Adapter ............................ 23
11.2 Protector G 1½", R 1½", NPT 1½" ........... 24
11.3 Lock nut ............................ 24
11.4 Protection cover ...................... 24
11.5 Test magnet ......................... 25
11.6 Plug-in jack, connection adapter ........... 25
Index .................................. 26

About this document Nivector FTI26
4 Endress+Hauser
1 About this document
1.1 Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and
storage, to mounting, connection, operation and commissioning through to
troubleshooting, maintenance and disposal.
1.2 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.3 Electrical symbols
Symbol Meaning
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any other connections.
1.4 Symbols for certain types of information
Symbol Meaning
Preferred
Procedures, processes or actions that are preferred.
Allowed
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
A
Reference to page
,… ,
1. 2. 3.
Series of steps

Nivector FTI26 About this document
Endress+Hauser 5
Symbol Meaning
Result of a step
Visual inspection
1.5 Symbols for graphics
Symbol Meaning
1, 2, 3 ... Item numbers
A, B, C, ... Views
1.6 Documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number
from nameplate
•Endress+Hauser Operations App: Enter the serial number from the nameplate or
scan the 2D matrix code (QR code) on the nameplate
1.7 Standard documentation
• TI01384F → Nivector FTI26, IO-Link
• BA01830F → Nivector FTI26 without IO-Link
• BA01832F → Nivector FTI26, IO-Link
• KA01408F → Nivector FTI26
1.8 Supplementary documentation
• TI00426F/00 → Weld-in adapter, process adapter and flanges (overview)
• SD01622P/00 → Weld-in adapter (installation instructions)
• SD00356F/00 → Valve plug (installation instructions)
• SD02242F/00 → Protector (installation instructions)
1.9 Certificates
Depending on the option selected in the "Approval" order code, Safety Instructions are
supplied with the device, e. g. XA. This documentation is an integral part of the Operating
Instructions. The nameplate indicates the Safety Instructions (XA) that are relevant to the
device.
Safety instructions
• XA01734F/00 → ATEX; IECEx
• XA01821F/00 → CSA Ex
• XA01943F/00 → EAC Ex

Basic safety instructions Nivector FTI26
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣Are authorized by the plant owner/operator.
‣Are familiar with federal/national regulations.
‣Before starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the
application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Are instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
The measuring device described in these instructions may be used only as a point level
switch for powdery and fine-grained bulk solids. Incorrect use may pose a hazard. To
ensure that the measuring device remains in perfect condition during the operating time:
• Measuring devices must be used only for media to which the process-wetted materials
have an adequate level of resistance.
• The relevant limit values must not be violated, see TI01384F/00/EN.
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Residual risks
Due to heat transfer from the process, the temperature of the electronics housing and the
assemblies contained therein may rise to 80 °C (176 °F) during operation.
LCAUTION
Hot surfaces
Danger of burns from contact with surfaces!
‣In the event of elevated fluid temperatures, ensure protection against contact to
prevent burns.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.

Nivector FTI26 Basic safety instructions
Endress+Hauser 7
2.4 Operational safety
LCAUTION
Risk of injury!
‣The operator is responsible for the trouble-free operation of the device.
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The device must be operated with a 500 mA fine-wire fuse (slow-blow) which is
suitable for DC current in accordance with IEC 60127-2.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the-art safety requirements, has been tested, and left the factory in a condition in
which it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
2.6 IT security
Our warranty is valid only if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any
inadvertent changes to the settings.
IT security measures, which provide additional protection for the device and associated
data transfer, must be implemented by the operators themselves in line with their security
standards.

Product description Nivector FTI26
8 Endress+Hauser
3 Product description
Capacitance point level switch for powdery and fine-grained bulk solids; use preferably in
bulk solids vessels, e.g. silos
3.1 Product structure
4
10
1
7
8
9
2 3
56
A0035860
 1 Product structure of Nivector FTI26, connection and housing covers optional
1 Valve plug
2 M12 plug
3 Ex protection cover →  24
4 Plastic housing cover with LED for valve plug, IP65
5 Plastic housing cover with LED, IP65/67
6 Metal housing cover, IP66/68/69
7 Housing
8 Process connection G 1"
9 Sensor
10 Ground terminal (hazardous area)
Additional and optional accessories available to order, from →  22.

Nivector FTI26 Incoming acceptance and product identification
Endress+Hauser 9
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016051
Is the order code on the delivery note (1) identical to the order code on the product sticker (2)?
Are the goods undamaged?
DELIVERY NOTE
40 bar
A0035872
Do the data on the nameplates correspond to the order specifications on the delivery note?
If one of these conditions is not satisfied, contact your Sales Center.
4.2 Product identification
The measuring device can be identified in the following ways:
• Nameplate data
• Order code with breakdown of the device features on the delivery note
• Enter serial number from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information on the measuring device is displayed
The serial number on the nameplate can also be used to obtain an overview of the
technical documentation supplied with the device in W@MDevice Viewer
(www.endress.com/deviceviewer)
4.2.1 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Address of the manufacturing plant: See nameplate.

Incoming acceptance and product identification Nivector FTI26
10 Endress+Hauser
4.2.2 Nameplate
Ser. no.:
Order code:
I max.
U:
Ext. ord. cd.:
TAG:
BAxxxxF
XAxxxxF
40 bar
Date:
1
2
3
4
5
6
7
89
10
12
14
15
17
13
11
06
50
EAC Ex ta/tc IIIC
T100°C Da/Dc X
16
A0036631
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
Company logo
Device name
Manufacturer address
Order code
Serial number
Marking for test magnet
Extended order code
Supply voltage
Signal output
Process and ambient temperature
Process pressure
Certificate symbols, communication (optional)
Degree of protection: e.g. IP, NEMA
Measuring point identification (optional)
Date of manufacture (year, month)
Data matrix code with E+H serial number
Document number of Operating Instructions
(BA), Safety Regulations (XA)
The test magnet is included in the scope of delivery. It can be canceled optionally.
→  25
4.3 Storage and transport
4.3.1 Storage conditions
• Permitted storage temperature: –25 to +85 °C (–13 to +185 °F)
• Use original packaging.
4.3.2 Transport
Transport the device to the measuring point in the original packaging.

Nivector FTI26 Installation
Endress+Hauser 11
5 Installation
5.1 Installation conditions
Lateral mounting in bulk solids vessel, e.g. silo
A miniature contactor, a solenoid valve or a programmable logic controller (PLC) can be
connected directly to the point level switch.
1
2
A0035880
 2 Application examples
1 Overfill prevention or upper level detection (MAX)
2 Dry-running protection or lower level detection (MIN)
5.2 Mounting the measuring device
5.2.1 Required tools
• Open-ended wrench AF32
• When screwing in, turn by the hex bolt only.
• Torque: 5 to 12 Nm (3.7 to 8.9 lbf ft)
• Sensor surface ≥ 20 mm (0.79 in) projecting into silo (when installing with weld-in
adapter 20 mm (0.79 in)
• Silo wall thickness < 35 mm (1.38 in) or welding socket G 1" < 50 mm (1.97 in)
5.2.2 Installation examples
≥20 (0.8)
G 1"
A0035881
 3 Standard installation with external G 1" threaded adapter

Installation Nivector FTI26
12 Endress+Hauser
≥20 (0.8)
G 1"
A0036360
 4 Where buildup occurs on the silo wall with internal G 1" threaded adapter
≥20 (0.8)
G 1"
A0036359
 5 Bore hole in silo wall with lock nuts, can be ordered as an accessory →  22
13.5 (0.53)
G 1"
A0036362
 6 Installation with weld-in adapter, can be ordered as an accessory →  22
NOTICE
Installation in a conventional T-section or in a metallic tank nozzle reduces the
measuring performance of the sensor.
‣Install Tri-Clamp version, e. g. NA Connect adapter for hygiene-compliant connection.
This minimizes dead legs and increases cleanability.
A
!B
!C
A
C - B <
=1
A0036363
 7 Installation with Tri-Clamp, which can be ordered as an accessory, →  22and with NA Connect
adapter provided by customer
A Distance between Tri-Clamp and NA Connect adapter
B Diameter of Nivector
C Diameter of NA Connect adapter

Nivector FTI26 Installation
Endress+Hauser 13
Installation with protector
• Protection of point level switch against damage by particularly abrasive or coarse product
• Outflow protection in silo for functional testing when silo is full
≥20 (0.8)
G 1½"
A0036361
 8 Installation with protector, can be ordered as an accessory →  22
Take account of metallic or non-metallic vessels in accordance with EMC guidelines,
see Technical Information TI01384F.
5.2.3 Protection cover for hazardous areas
LWARNING
Damage to the device from impact.
‣The protection cover must be fitted before the device is put into operation.
A
0.6 Nm
A0035999
A View with ground terminal
Can also be ordered as an accessory →  22
≥20 (0.8)
G 1"
A0036433
 9 Installation with protection cover, included in scope of delivery for hazardous areas or can be ordered as
an accessory →  22

Electrical connection Nivector FTI26
14 Endress+Hauser
5.3 Post-installation check
 Is the device undamaged (visual inspection)?
 Is the device adequately protected from wet conditions and direct sunlight?
 Is the device properly secured?
 Use in hazardous areas: Is the protection cover installed?
6 Electrical connection
6.1 Connection conditions
The measuring device has two modes of operation:
• Maximum point level detection (MAX): e.g. for overfill prevention
The device keeps the electrical switch closed as long as the sensor is not yet covered by
medium.
• Minimum point level detection (MIN): e.g. Dry running protection
The device keeps the electrical switch closed as long as the sensor is covered by medium.
Choosing the MAX or MIN mode of operation ensures that the device switches in a safety-
oriented manner even in an alarm condition, e.g. if the power supply line is disconnected.
The electronic switch opens if the point level is reached, if a fault occurs or if the power
fails (quiescent current principle).
6.2 Connecting the measuring device
• Supply voltage 12 to 30 V DC
• In accordance with IEC/EN61010 a suitable circuit breaker must be provided for the
measuring device.
• Voltage source: Non-hazardous contact voltage or Class 2 circuit (North America).
• The device must be operated with a 500 mA fine-wire fuse (slow-blow) which is suitable
for DC current in accordance with IEC 60127-2.
• Depending on the analysis of the switch outputs, the measuring device works in the
MAX or MIN modes.
6.2.1 Function monitoring
With two-channel evaluation, functional monitoring of the sensor is also possible in
addition to level monitoring.
When both outputs are connected, the MIN and MAX outputs assume opposite states
(XOR) when the device is operating fault-free. In the event of an alarm condition or a cable
break, both outputs are de-energized.
Connection for function monitoring using XOR operation Yellow LED
(ye)
Red LED
(rd)
0.5A
L– L+
21
34
K1 K2
Sensor covered
1
2
1
4
Sensor free
4
1
1 2

Nivector FTI26 Electrical connection
Endress+Hauser 15
Connection for function monitoring using XOR operation Yellow LED
(ye)
Red LED
(rd)
Fault
21
41
Symbols
K1/K2
Description
LED lit
LED not lit
Fault or warning
External load
6.2.2 M12 plug
Electrical connection Operating mode
M12 plug MAX MIN
0.5A
L– L+
21
34
K
0.5A
L– L+
21
34
K
1
21
2
1
41
4
Symbols
K
Description
Yellow LED (ye) lit
Yellow LED (ye) not lit
External load
6.2.3 Valve plug
Depending on the assignment of the connector or the wiring of the cable, the device works
in either the MAX or MIN operating mode.
Electrical connection Operating mode
Valve plug MAX MIN
A0022900
1
3
0.5A
L– L+
2
K
+
–
L– L+
3
0.5A
12
K
+
–
3
23
2
2
32
3
Symbols
K
Description
Yellow LED (ye) not lit
Yellow LED (ye) lit
External load

Electrical connection Nivector FTI26
16 Endress+Hauser
6.2.4 Post-connection check
Is the device or cable undamaged (visual check)?
Do the cables comply with the requirements?
Do the mounted cables have adequate strain relief?
Are the cable glands mounted and firmly tightened?
Does the supply voltage match the specifications on the nameplate?
If supply voltage is present, is the green LED lit?

Nivector FTI26 Commissioning
Endress+Hauser 17
7 Commissioning
7.1 Function check
Before commissioning your measuring point, ensure that the post-installation and post-
connection checks have been performed:
• "Post-installation check" checklist→  14
• "Post-connection check" checklist →  16
7.2 Commissioning with an operating menu
• The device is preconfigured at the factory in such a way that it can be used for the
majority of applications without the need for an adjustment. The electrical switch point
of the device is factory-set to product with a particle size ⌀ < 10 mm and a relative
dielectric constant εr ≥ 1.6. Depending on the option ordered, the device is configured for
the type of installation with a protector or without a protector with lock nuts
(installation is intended in a metal tank in each case). A customer-specific adjustment
(empty and full adjustment) is recommended for other types of installation (e.g.
installation in plastic tanks, weld-in adapters).
• For switch-sensitive applications, the measurement performance can be improved by a
customer-specific adjustment. An adjustment is recommended for:
• sensitive media (< 1.6 DC)
• different type of installation
• In processes with large variations in temperature, the temperature dependence of the
medium must be taken into account. A new empty and full calibration can compensate
for these variations.
7.3 Light signals (LEDs)
AB
1
23
4
12
3
2b
3
12
3
1
2a
A0035963
 10 Position of LEDs on housing cover
A Housing cover with M12 plug, plastic
B Housing cover with valve plug
Position LEDs Description of function
1 Green LED (gn) Lit: Measuring device is operational
2 Yellow LED (ye)
M12 plug:
LED 2a
Active only in conjunction with IO-Link communication.

Commissioning Nivector FTI26
18 Endress+Hauser
Position LEDs Description of function
LED 2b display of sensor status
Sensor is covered by medium.
Valve plug: Indicates switch status
MAX mode (overfill protection): Sensor is not covered by medium
MIN mode (dry-running protection): Sensor is covered by medium
3
Red LED (rd) Warning/Maintenance required
flashing: Error remediable, e. g. invalid calibration
Fault/device failure
lit: Error not remediable, e. g. Electronics error
There is no external signaling via LEDs on the metal housing cover (IP69). A
connecting cable with an M12 plug and LED display can be ordered as an accessory if
necessary. This cable has no red LED. See "Accessories".
7.4 Function of LEDs
Any configuration of the switch outputs is possible.
Operating mode MAX MIN
free covered free covered Warning Fault
1
1
23
4
ye
rd
gn
ye
2
ye1
ye2 gn
—
3
ye
1
2
3
gn
rd
LED indicator LED colors Symbols/description
1
2
3
M12 plug on plastic housing cover
M12 plug including LEDs
Valve plug
gn
ye
rd
green
yellow
red
—
not lit
lit
flashing
fault/warning
no signaling
7.5 Operation with test magnet
7.5.1 Full adjustment
Prerequisite: Sensor is covered by the medium
1. Hold the test magnet against the marking on the housing.
2. Apply operating voltage to the device.

Nivector FTI26 Commissioning
Endress+Hauser 19
3. The green and red LEDs flash at a frequency of 1.5Hz.
4. The LEDs stop flashing after 5s.
5. Remove test magnet.
 The full adjustment is performed and the switching thresholds are set
accordingly.
The test magnet must be removed in the timeframe between 5 seconds and 10
seconds. A full adjustment is not performed if the magnet is removed outside this
timeframe.
0
1.5Hz
rd/gn
5
t/s
A
A0036912
A Remove the magnet now for full adjustment.
7.5.2 Empty adjustment
Prerequisite: Sensor is free
1. Hold the test magnet against the marking on the housing
2. Apply operating voltage to the device
3. The green and red LEDs flash at a frequency of 1.5Hz
4. The LEDs stop flashing after 5s
5. At 10s, the green and rote LEDs start flashing at a frequency of 3Hz
6. The LEDs stop flashing after 20s
7. Remove test magnet.
 The empty adjustment is performed and the switching thresholds are set
accordingly.
The test magnet must be removed in the timeframe between 20 seconds and 25
seconds. An empty adjustment is not performed if the magnet is removed outside this
timeframe.
0 10
1.5Hz
rd/gn
5
3Hz
rd/gn
20
t/s
AB
A0036913
A Remove the magnet now for full adjustment.
B Remove the magnet now for empty adjustment.
7.5.3 Resetting to factory settings
If the test magnet is held against the marking for ≥ 30 seconds, the switching thresholds
are reset to the factory setting. Pay attention to the time or flashing frequencies!
If a medium-specific switching threshold is active, this is signaled by a flashing green
LED indicator during the first 5 seconds of the operating voltage being applied.

Commissioning Nivector FTI26
20 Endress+Hauser
0 10 25 30
1.5Hz
rd/gn
5
3Hz
rd/gn
20
1.5Hz
rd/gn
t/s
ABC
A0036914
A Remove the magnet now for full adjustment.
B Remove the magnet now for empty adjustment.
C Remove the magnet now to reset to factory settings.
7.5.4 Function test
Carry out a function test while the device is in operation.
‣Hold the test magnet against the marking on the housing for at least 2 seconds.
 This inverts the current switch status, and the yellow LED changes state. When the
magnet is removed, the switch status valid at that time is adopted.
If the test magnet is held against the marking for ≥ 30 seconds, the red LED will flash: The
device returns automatically to the current switch status.
The test magnet is included in the scope of delivery. It can be canceled optionally.
N
Ser. no.:
Order code:
Ext. ord. cd.:
A0035882
 11 Position for test magnet on housing nameplate