Endress+Hauser Flowphant T DTT31 Flowphant T DTT35 User manual

Products Solutions Services
Operating Instructions
Flowphant T DTT31, DTT35
Flow switch
80 50
%%
BA00235R/09/EN/17.18
71415550
2018-02-15
Valid as of version
01.00 (device version)

Flowphant T DTT31, DTT35 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ........... 4
1.1 Document function ................... 4
1.2 Symbols used ........................ 4
2 Basic safety instructions ....... 5
2.1 Requirements for the personnel ........ 5
2.2 Designated use ...................... 6
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 6
2.5 Product safety ....................... 6
2.6 IT security .......................... 7
3 Incoming acceptance and
product identification .......... 7
3.1 Incoming acceptance ................. 7
3.2 Product identification ................. 7
3.3 Storage and transport ................. 8
4 Installation ...................... 8
4.1 Installation conditions ................ 8
5 Electrical connection .......... 12
5.1 Connection conditions ............... 12
6 Operation options ............. 14
6.1 Overview of operation options ........ 14
6.2 Structure and function of the operating
menu ............................. 16
6.3 Access to the operating menu via the
operating tool ...................... 26
7 Diagnostics and
troubleshooting ............... 27
7.1 General troubleshooting ............. 27
7.2 Firmware history ................... 29
8 Maintenance .................. 30
9 Repair .......................... 30
9.1 Return ............................ 30
9.2 Disposal ........................... 30
10 Accessories .................... 31
10.1 Device-specific accessories ............ 31
10.2 Communication-specific accessories ... 34
11 Technical data ................. 35
11.1 Output ............................ 35
11.2 Power supply ....................... 36
11.3 Environment ....................... 36
11.4 Process ............................ 37
11.5 Mechanical construction ............. 38
11.6 Certificates and approvals ............ 41
11.7 Supplementary documentation ........ 42

About this document Flowphant T DTT31, DTT35
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 used
1.2.1 Safety symbols
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
NOTE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation.
A
Reference to page.
Reference to graphic.

Flowphant T DTT31, DTT35 Basic safety instructions
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Symbol Meaning
Notice or individual step to be observed.
1.
,
2.
,
3.
… Series of steps.
Result of a step.
Help in the event of a problem.
Visual inspection.
1.2.3 Symbols in graphics
Symbol Meaning
1, 2, 3, ... Item numbers
1.
,
2.
,
3.
, … Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
-
Hazardous area
.
Safe area (non-hazardous area)
Flow direction
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.

Basic safety instructions Flowphant T DTT31, DTT35
6 Endress+Hauser
2.2 Designated use
The device is a flow switch for monitoring mass flow rates in industrial processes. The device
is designed to meet state-of-the-art safety requirements and complies with applicable
standards and EC regulations. The device can, however, be a source of danger if used
incorrectly or for anything other than the designated use.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
For welding work on the piping:
‣Do not ground the welding unit via the measuring device.
If working on and with the device with wet hands:
‣Due to the increased risk of electric shock, gloves must be worn.
2.4 Operational safety
• Functional safety:
The device has been developed according to the IEC 61508 and IEC 61511-1 (FDIS)
standards. The device version with a PNP switch output and additional analog output is
fitted with mechanisms for error detection and prevention within the electronics and
software.
• Hazardous area:
The device is not approved for use in hazardous areas.
Risk of injury!
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for the interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, consult with the manufacturer.
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 only original spare parts and accessories from the manufacturer.
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.

Flowphant T DTT31, DTT35 Incoming acceptance and product identification
Endress+Hauser 7
It meets general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. .
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.
3 Incoming acceptance and product identification
3.1 Incoming acceptance
Proceed as follows on receipt of the device:
1. Check whether the packaging is intact.
2. If damage is discovered:
Report all damage immediately to the manufacturer.
3. Do not install damaged material, as the manufacturer cannot otherwise guarantee
compliance with the safety requirements and cannot be held responsible for the
consequences that may result.
4. Compare the scope of delivery against the contents of your order.
5. Remove all the packaging material used for transportation.
3.2 Product identification
The device can be identified in the following ways:
• Nameplate specifications
• Enter the serial number from the nameplate in the W@M Device Viewer
(www.endress.com/deviceviewer): all data relating to the device and an overview of the
Technical Documentation supplied with the device are displayed.
The nameplate illustrated below is designed to help users identify specific product
information, such as the serial number, design, variables, configuration and device approvals:

Installation Flowphant T DTT31, DTT35
8 Endress+Hauser
Flowphant T
Made in Germany D-87484 Nesselwang
Order Code: DTT3x-xxxxxxxx
Ser.No.: xxxxxxxxxxxxxx
TAG No.: Xxxxxxxxxxxxxxxxxx
Xxxxxxxxxxxxxxxxxx
Rel.: X.XX.XX
Flow (0.03… 3m/s; -20 °C...+85 °C)
-40°C <Ta < 85°C
Output < 250 mA
Current consump.100mA
18 - 30V DC
PNP
1
4
3
2
L+
L-
1 2
IP6X
1
2
3
4
56
7
8
9
10
A0006981
 1 Nameplate for device identification
1 Order code
2 Serial number
3 TAG number
4 Release number
5 Connection data
6 Measuring range
7 Ambient temperature range
8 Degree of protection
9 Approvals
10 Connection diagram
Check the data on the nameplate of the device and compare them against the
requirements of the measuring point.
3.3 Storage and transport
Pack the device so that it is reliably protected against impact when it is stored (and
transported). The original packaging offers the best protection.
Storage temperature –40 to +85 °C (–40 to +185 °F)
4 Installation
4.1 Installation conditions
4.1.1 Dimensions
→  38

Flowphant T DTT31, DTT35 Installation
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4.1.2 General installation instructions
NOTICE
Damage to the device.
‣To ensure correct monitoring, the sensor must be installed in a way that produces a fully
developed flow profile.
‣Stabilization sections (5x DN) must be provided in the pipe downstream from a pump, pipe
elbows, internal fixtures and cross-sectional changes.
NOTICE
Damage to the device.
‣Do not turn the device into the process connection thread at the housing→  9.
‣Always install the device at the wrench flats.
‣Use a suitable open-ended wrench →  9.
‣The local display can be rotated electronically by 180 °→  14.
‣The top housing section can be rotated mechanically by up to 310 °.

Installation Flowphant T DTT31, DTT35
10 Endress+Hauser
• The sensor tip must be completely surrounded by the
medium
• Position the sensor tip in the area of maximum flow
velocity (pipe center)
• Minimum sensor immersion length
Li ≥ 10 mm (0.4 in).
80
%
Li
vm
1
A0006976
 2 Installation instructions (example)
Orientation
• For horizontal pipes: lateral installation. Installation
from above only if the pipe is completely filled with
medium
• For vertical pipes: installation in the ascending pipe
• For DTT35: install at an angle of at least 3 ° for self-
draining
80
%
80
%
80
%
=3°
A0006977
 3 Correct orientation
NOTICE
If the device is installed incorrectly this can result in
incorrect measurements!
‣Do not install in down pipes open towards the end.
‣The sensor tip should never touch the pipe wall.
80
%
80
%
A0006978
 4 Incorrect installation!