BA00235R/09/EN/18.20
71509929
2020-11-30

Products

Solutions

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Valid as of version
01.00 (device version)Operating Instructions
Flowphant T DTT31, DTT35
Flow switch

Flowphant T DTT31, DTT35

Table of contents

Table of contents
1

About this document . . . . . . . . . . . 4

10

1.1
1.2

Document function . . . . . . . . . . . . . . . . . . . 4
Symbols used . . . . . . . . . . . . . . . . . . . . . . . . 4

10.1 Device-specific accessories . . . . . . . . . . . . 34
10.2 Communication-specific accessories . . . 36

Accessories . . . . . . . . . . . . . . . . . . . . 34

2

Basic safety instructions . . . . . . . 6

11Technical data . . . . . . . . . . . . . . . . . 38

2.1
2.2
2.3
2.4
2.5
2.6

Requirements for the personnel . . . . . . . . 6
Designated use . . . . . . . . . . . . . . . . . . . . . . 6
Workplace safety . . . . . . . . . . . . . . . . . . . . 6
Operational safety . . . . . . . . . . . . . . . . . . . 6
Product safety . . . . . . . . . . . . . . . . . . . . . . . 7
IT security . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3Incoming acceptance andproduct identification . . . . . . . . . . 7

11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power supply . . . . . . . . . . . . . . . . . . . . . . . 38
Environment . . . . . . . . . . . . . . . . . . . . . . . 39
Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Mechanical construction . . . . . . . . . . . . . 41
Certificates and approvals . . . . . . . . . . . . 44
Supplementary documentation . . . . . . . . 46

3.1
3.2
3.3
3.4
3.5

Incoming acceptance . . . . . . . . . . . . . . . . . 7
Product identification . . . . . . . . . . . . . . . . . 8
Name and address of manufacturer . . . . . 9
Certificates and approvals . . . . . . . . . . . . . 9
Storage and transport . . . . . . . . . . . . . . . . . 9

4

Mounting . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1

Mounting requirements . . . . . . . . . . . . . . . 9

5Electrical connection . . . . . . . . . . 15

5.1

Connecting requirements . . . . . . . . . . . . 15

6Operating options . . . . . . . . . . . . . 17

6.1
6.2

Overview of operating options . . . . . . . . 17
Structure and function of the operating
menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Access to the operating menu via theoperating tool . . . . . . . . . . . . . . . . . . . . . . 29

6.3

7

Diagnostics andtroubleshooting . . . . . . . . . . . . . . . 30

7.1
7.2

General troubleshooting . . . . . . . . . . . . . 30
Firmware history . . . . . . . . . . . . . . . . . . . 32

8Maintenance . . . . . . . . . . . . . . . . . . 33

8.1

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9Repair . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.1
9.2

Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Endress+Hauser

3About this document

Flowphant T DTT31, DTT35

1

About this document

1.1

Document function

These Operating Instructions contain all the information that is required in various phases ofthe life cycle of the device: from product identification, incoming acceptance and storage, tomounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.

1.2

Symbols used

1.2.1

Safety symbols

DANGER

This symbol alerts you to a dangerous situation. Failure to avoid this situation will result inserious or fatal injury.
WARNING

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result inserious or fatal injury.
CAUTION

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result inminor or medium injury.
NOTICE

This symbol contains information on procedures and other facts which do not result inpersonal injury.
1.2.2

Electrical symbols
SymbolMeaning
Direct current
Alternating current
Direct current and alternating current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via agrounding system.
Protective Earth (PE)A terminal which must be connected to ground prior to establishing any otherconnections.
The ground terminals are situated inside and outside the device:• Inner ground terminal: Connects the protectiv earth to the mains supply.
• Outer ground terminal: Connects the device to the plant grounding system.

4

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Flowphant T DTT31, DTT35

1.2.3

About this document

Symbols for certain types of information
SymbolMeaning
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 documentationA

Reference to page
Reference to graphic

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

1.2.4

Symbols in graphics
SymbolMeaning

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

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5Basic safety instructions

2

Basic safety instructions

2.1

Requirements for the personnel

Flowphant T DTT31, DTT35

The personnel for installation, commissioning, diagnostics and maintenance must fulfill thefollowing 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 andsupplementary 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'sowner-operator.

‣ Follow the instructions in this manual.

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 applicablestandards and EC regulations. The device can, however, be a source of danger if used
incorrectly or for anything other than the designated use.
The manufacturer is not liable for damage caused by improper or non-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 isfitted with mechanisms for error detection and prevention within the electronics andsoftware.
• Hazardous area:
The device is not approved for use in hazardous areas.
6

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Flowphant T DTT31, DTT35

Incoming acceptance and product identification

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.
RepairTo 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 stateof-the-art safety requirements, has been tested, and left the factory in a condition in which itis safe to operate.
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 datatransfer, 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 theconsequences that may result.

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7

Incoming acceptance and product identification

Flowphant T DTT31, DTT35

4.

Compare the scope of delivery to the contents of the 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 theTechnical Documentation supplied with the device are displayed.
3.2.1

Nameplate

The nameplate illustrated below is designed to help users identify specific productinformation, such as the serial number, design, variables, configuration and device approvals:
1

6

8

9

10

Pt100 (-50 … 150°C)
12 - 30V DC-40°C < Ta < 85°C
PNP / 4...20mA
Output < 250 mA
Current consump. 60mA IP6X

Thermophant T

L+
Order Code: TTR3x-xxxxxxxx
Ser.No.:xxxxxxxxxxxxxx
TAG No.:Xxxxxxxxxxxxxxxxxx
Xxxxxxxxxxxxxxxxxx
Rel.:
XX.YY.ZZ

2

2

1

3

4

3
4
5
7

1

2

L-

11
A0008138

1
1
2
3
4
5
6
7
8
9
10
11

Nameplate for device identification
Manufacturer's details
Order code
Serial number
Tag number
Release number
Connection data
Connection diagram
Measuring range
Ambient temperature
Degree of protection
Approvals

Compare and check the data on the nameplate of the device against the requirements ofthe measuring point.

8

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Flowphant T DTT31, DTT35

3.3

Mounting

Name and address of manufacturer

Name of manufacturer:

Endress+Hauser Wetzer GmbH + Co. KG

Address of manufacturer:

Obere Wank 1, D-87484 Nesselwang or www.endress.com

3.4

Certificates and approvals

3.4.1

CE mark

The product meets the requirements of the harmonized European standards. As such, itcomplies with the legal specifications of the EC directives. The manufacturer confirms
successful testing of the product by affixing to it the CE-mark.
3.4.2

Hygiene standard• EHEDG certification, type EL CLASS I. EHEDG-certified/tested process connections→  42• 3-A Authorization No. 1144, 3-A Sanitary Standard 74-07. Listed process connections→  43

3.5

Storage and transport
Pack the device in such a way that it is reliably protected against impact during storage(and transportation). The original packaging provides optimum protection.

Storage temperature–40 to +85 °C (–40 to +185 °F)

4Mounting

4.1

Mounting requirements

4.1.1

Dimensions→  41
4.1.2

Ambient temperature range

Ta

Endress+Hauser–40 to +85 °C (–40 to +185 °F)

9Mounting

4.1.3

Flowphant T DTT31, DTT35

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→  10.
‣ Always install the device at the wrench flats.
‣ Use a suitable open-ended wrench →  10.
‣ The local display can be rotated electronically by 180 °→  17.
‣ The top housing section can be rotated mechanically by up to 310 °.

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Flowphant T DTT31, DTT35

Mounting• The sensor tip must be completely surrounded by themedium• Position the sensor tip in the area of maximum flow
velocity (pipe center)• Minimum sensor immersion lengthLi ≥ 10 mm (0.4 in).

80

%

1

vm

Li

A0006976

2

Installation instructions (example)

Orientation• For horizontal pipes: lateral installation. Installationfrom above only if the pipe is completely filled withmedium• For vertical pipes: installation in the ascending pipe
• For DTT35: Install at an angle of at least 3 ° toguarantee self-draining.

≥3

≥ 3°

120 °C

U

Lt

Dt

dt
A0044425

3Endress+Hauser

Correct orientation

11

Mounting

Flowphant T DTT31, DTT35

NOTICE80%%

80

If the device is installed incorrectly this can result inincorrect measurements!
‣ Do not install in down pipes open towards the end.
‣ The sensor tip should never touch the pipe wall.

A00069784

12

Incorrect installation!

Endress+Hauser

Flowphant T DTT31, DTT35

4.1.4

Mounting

Installation instructions when installing in hygienic processes
1

2

3

1.1
2.1
1.2
2.2
2.3
1.3

3.1
3.2

1.5
1.4
R0.4

R0.4
A0044659

5
1
1.1
1.2
1.3
1.4
1.5
2
2.1
2.2
2.3
3
3.1
3.2

Detailed installation instructions for hygiene-compliant installation
Milk pipe connection according to DIN 11851 (PL, PG, PH connection), only in conjunction with
EHEDG-certified and self-centering sealing ringSensor with milk pipe connection
Groove slip-on nut
Counterpart connection
Centering ring
Sealing ring
Varivent® and APV-Inline (LB, LL, HL connection)
Sensor with Varivent® connection
Counterpart connection
O-ringClamp according to ISO 2852 (DB, DL connection), EHEDG certified only in conjunction with sealaccording to EHEDG position paper
Molded seal
Counterpart connection

The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to.
Installation instruction EHEDG/cleanability: Lt ≤ (Dt-dt)
Installation instruction 3-A/cleanability: Lt ≤ 2(Dt-dt)
In the case of weld-in connections, exercise the necessary degree of care when performing thewelding work on the process side:1.

Use suitable welding material.

2.

Flush-weld or weld with welding radius ≥ 3.2 mm (0.13 in).

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13

Mounting

Flowphant T DTT31, DTT35

3.

Avoid crevices, folds or gaps.

4.

Ensure the surface is honed and polished, Ra ≤ 0.76 µm (30 µin).

Pay attention to the following when installing the thermometer to ensure that the cleanability
is not affected:
1.

The installed sensor is suitable for CIP (cleaning in place). Cleaning is carried out incombination with tubing/piping or tank/vessel. In the case of internal tank fixturesusing process connection nozzles, it is important to ensure that the cleaning assembly
sprays this area directly so that it is cleaned properly.

2.

The Varivent® connections enable flush-mounted installation.

NOTICEThe following action must be taken if a sealing ring (O-ring) or seal fails:‣ The thermometer must be removed.
‣ The thread and the O-ring joint/sealing surface must be cleaned.
‣ The sealing ring or seal must be replaced.
‣ CIP must be performed after installation.
4.1.5

Inlet and outlet runs

NOTICEThe thermal measuring principle is sensitive to disturbed flow conditions.
‣ Install the measuring device as far away as possible from any flow disturbances. For further
information → ISO 14511.
‣ Install the sensor upstream from fittings such as valves, T-pieces, elbows etc.
‣ To attain the specified level of accuracy of the measuring device, the inlet and outlet runs
mentioned below must be maintained at the very minimum.
‣ If several flow disturbances are present, maintain the longest specified inlet run.

14

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Flowphant T DTT31, DTT35

Electrical connection

1

3

2
5 × DN

3 × DN

15 × DN

3 × DN

5 × DN

3 × DN

10 × DN

3 × DN5

4

5 × DN

3 × DN

5 × DN

3 × DN

6

A0023225

6
1
2
3
4
5
6

Inlet and outlet runs
Reduction
Extension
90° elbow or T-piece
Pump
Control valve
2x 90° elbow, 2- or 3-dimensional

5

Electrical connection

5.1

Connecting requirements

5.1.1

DC voltage version with M12x1 connector

DTT35: According to the 3-A Sanitary Standard and EHEDG electrical connecting cables mustbe smooth, corrosion-resistant and easy to clean.

Endress+Hauser

15Electrical connection

Flowphant T DTT31, DTT35

A1
L+
2

1

3

4

R1

A2
A2’

L+

2

1

3

4
R1

Rx

L–

L–

A3
L+
2

1

3

4
4...20 mA

R2
L–
A0006818

7

Flow switch with M12x1 connector

Item no.

Output setting

A1

1x PNP switch output

A2

2x PNP switch output R1 and Rx (R2)A2’

2x PNP switch output R1 and Rx (diagnostics/NC contact with "DESINA"
setting)

A3

1x PNP switch output and 1x analog output (4 to 20 mA)

LWARNING
Observe the following to avoid damaging the analog input of a PLC:
‣ Do not connect the active PNP switch output of the device to the 4 to 20 mA input of a PLC.
DESINA: distributed and standardized installation technology for machine tools andmanufacturing systems, →  25.
R2 = diagnostics/NC contact (for more information on DESINA, see www.desina.de)
NOTICEThe sensor tip of the device heats up once the device is connected to the power supply!
The temperature can increase to approx. 90 °C (194 °F).
‣ As the device sensor tip heats up, appropriate protective clothing must be worn!

16

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Flowphant T DTT31, DTT35

5.1.2

Operating options

DC voltage version with valve connector
B

1

L+

3

R

2

L–
A0035798

8

Flow switch with M16x1.5 valve connector or NPT ½"

Item no.

Output setting

B

1x PNP switch output

6

Operating options

6.1

Overview of operating options

The device is operated via three keys. The digital display and the light emitting diodes (LED)assist navigation through the operating menu.

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17

Operating options

Flowphant T DTT31, DTT35

1
E
2
3
5
4

A0044663

9
1
2
3
4
5

Position of the operating elements and possibilities for display
Operating keys
Digital display: illuminated white (= ok); red (= alarm/error)
Yellow LED for switching states: LED on = switch closed; LED off = switch open
Communication jack for PC configuration
LED for status display: green = OK; red = error/fault; flashing red/green = warning

To prevent damage to the keys, do not operate them with a pointed object!

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Flowphant T DTT31, DTT35

Operating options

6.2

Structure and function of the operating menu

6.2.1

Navigation in the operating menu

B

A

BASE

E
2.

E >3s

E

7.

5.

1.

E
6.

E

4.

SAVE
E

E

E

5.

E

E

3.

E >3s

A0035802

 10Navigation in the operating menu

A
B

Function group selection
Function selection

1.

To enter the operating menu, press the E key for longer than 3 s.

2.

Select the "Function group" with the + or − key.

3.

Select the "Function" with the E key.

4.

If software locking is enabled, it must be disabled before making entries or changes.
Enter and change the parameters with the + or − key.

5.

Press the E key to return to "Function".

6.

Press the E repeatedly to return to "Function group" until the relevant function group isreached.

7.

To return to the measuring position (Home), press the E key for longer than 3 s.

8.

To display the prompt to save data (press + or − to select the option "YES" or "NO"),
confirm with the E key.
If "YES" is selected when asked to save the data, changes are made to the parametersettings.

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19

Operating options

6.2.2

Flowphant T DTT31, DTT35

Navigating the Calibration (CAL) function group

Variable limits for HIF (Learn High Flow) or LOWF (Learn Low Flow) can be set with the'Learn Function'.
• HIF setting (Learn High Flow): Enter any flow rate from 70 to 100 % of the maximum value
in the process. The device then uses this value to automatically calculate the corresponding
100 % value.
• LOWF setting (Learn Low Flow): Enter any flow rate from 0 to 20 % of the maximum value
in the process. The device then uses this value to automatically calculate the corresponding
0 % value.

C

B

CAL

>2s
E

HIF
LOWF

E

2.

3.

4.

RUN

80%
0%

WAIT

1.

> 60 s6.

~ 10 s
OK
7.

5.

W432

E

OUT
A0010787

 11
B
C

Navigating the 'Learn' function taking the example of the Calibration (CAL) function group

Function selection
Selection of settings

1.

Select the "HIF" (Learn High Flow) or "LOWF" (Learn Low Flow) function with the E key.

2.

Select the "RUN" function with the + key; the Learn function is initialized.

3.

Select the flow rate with the + key; press for longer than 2 s.

4.

If "HIF" (Learn High Flow) is set, the upper flow rate (70 to 100 %) is selected. Enter thecurrent relative flow rate in increments of 1 % with the + or - key (factory setting 80 %).

5.

If "LOWF" (Learn Low Flow) is set, the lower flow rate (0 to 20 %) is selected. Enter thecurrent relative flow rate in increments of 1 % with the + or - key (factory setting 0%).

6.

Select the "WAIT" function with the E key.

7.

Accept ('learn') the current measured value after approx. 10 s- "OK" appears on thedisplay.

20

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Flowphant T DTT31, DTT35

Operating options

8.

Or: The message "W432" appears on the display after 60 s. A sufficiently stable flow
could not be detected during the learning process. The system takes an average of the
10 values last measured during the learning process.

9.

Return to the CAL function group (Home position) with the E key.
The device is still operative if message W432 is displayed. There can be large measuring
uncertainties, however. Recommendation: Repeat the learning process (points 1 to 4)
until "OK" appears on the display.

6.2.3

Navigating the function switch point "Learn" (SPL)

Variable limits for HIF (Learn High Flow) or LOWF (Learn Low Flow) can be set with the'Learn Function'.

C

B

OUT

>2s
2.

3.

RUN

WAIT

E 1.

> 60 sSPL~ 10 s

4.

OK
6.

5.

W432

E

SERV
A0005785

 12
B
C

Navigating the function switch point 'Learn' (SPL)

Function selection
Selection of settings

1.

Select SPL (switch point 'Learn'), optionally SPL2 (switch point 2 'Learn') with the E key.

2.

Select the "RUN" function with the + key; the Learn function is initialized.

3.

Select the "WAIT" function with the + key; press for longer than 2 s.

4.

Accept ('learn') the current measured value after approx. 10 s- "OK" appears on thedisplay.

5.

Or: The message "W432" or "NOK" appears on the display after 60 s. W432: A
sufficiently stable flow could not be detected during the learning process. The systemtakes an average of the 10 values last measured during the learning process.

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21

Operating options

6.

Flowphant T DTT31, DTT35

NOK: The switch point determined is under 5 % of the measuring range and cannot be
accepted because the switch point must be at least 5 % greater than the switchback
point (RSP).
The device is still operative if message "W432" or "NOK" is displayed. There can be large
deviations at the switch point, however. Recommendation: Repeat the learning process(points 1 to 4) until "OK" appears on the display.

22

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Flowphant T DTT31, DTT35

6.2.4

Operating options

Structure of the operating menu for 2 switch outputs

B

A
E

BASE

-

E

CAL

-+

E

OUT

-

+

OUT2
E
(optional)

-

+

E

SERV

-

DISP

+ PV

+ PVRO

UNIT

+ °F

DESI

+ °C
+ 0.0
+ NO

HIF

+ RUN

+

80%

E

WAIT

LOWF

+ RUN

+

80%

E

WAIT

FUNC

+ HYNC+ HYNO

SP

+ 0.0

SPL

+ RUN

RSP

+ 0.0

TSP

+ 0.0

TRSP

+ 0.0

MODE

+ FLOW+ TEMP

UNIT

+ °C

+ °F

FNC2

+ HYNC+ HYNO

SP2

+ 0.0

SP2L

+ RUN

RSP2

+ 0.0

TSP2

+ 0.0

TAU

+

+

C

TRSP2

+ 0.0

LOCK

+ 0

CODE

+ 0

PRES

+ NO

+ TMP

+ TMPR+ OFF+ OFFR+ YES+ WAIT+ WAIT

+ YES

REV’C

+ 0

LST’A

+ 0

SIM

+ OFF

+ OPEN+ CLOS

SIM2

+ OFF

+ OPEN+ CLOS
A0005784

 13

Operating menu

Endress+Hauser

23

Operating options

A
B
C

Flowphant T DTT31, DTT35

Function groups
Functions
Settings

6.2.5

Structure of the operating menu for 1 x analog output (4 to 20 mA) and 1 x
switch output

A

B

BASE

E DISP

+

PV

+

PVRO

UNIT

°C

+

°F

C

+

TAU

+
+

CAL

E HIF

+

RUN

+

WAIT

-

+

TMP

+
+

OFF

LOWF

+

RUN

+

WAIT

4-20

E MODE

MIN

+
+

TEMP

-+

+
+

FLOW

FCUR

OUT

E MODE

+

FLOW

+

TEMP

UNIT

+

°C

+

°F

FUNC

+

HYNC

+

HYNO

SP

+

0.0

SPL

+

RUN

+

WAIT

RSP

+

0.0

TSP

+

0.0

TRSP

+

0.0

E LOCK

+

0

CODE

+

0

PRES

+

NO

+

YES

REV’C

+

0

LST’D

+

0

SIMA

+

OFF

+

3.5

+

4

SIM

+

OFF

+

OPEN

+

CLOS

+

SERV

-

+

TMPR

+

+

8

+ ...

OFF

+

OFFR

0.0

-+

-

+

MAX

HOLD

A0006819

 14
A
B
C
24

Operating menu

Function groups
Functions
Settings
Endress+Hauser

Flowphant T DTT31, DTT35

6.2.6

Operating options

Basic settings

Function group

Function

BASE
Basic settings

DISP

Display

Settings

Description

PV

Displays the current measured value

PVRO

Displays the current measured value rotatedby 180 °TMP

Display of current medium temperature

TMPR

Displays the current medium temperature
rotated by 180 °OFF

Display off

OFFR

Display off, rotated by 180 °Factory setting: current measured value (PV)UNITTechnical unit

xC
xF

Medium temperature displayed in the unit °C
or °F
visible if the current medium
 Onlytemperature TMP is selected in the
DISP mode.

Factory setting: °C
TAU

Damping

0,0Measured value damping with regard to
display value and output:
0 (no damping) or 9 to 40 s (in increments of
1 s)
Factory setting: 0 s

DESI

DESINA
Only for 2 x PNP
switch outputs

NO
YES

Behavior as per DESINA:
The PIN assignment of the M12 connector isin accordance with the DESINA Guidelines(DESINA = distributed and standardized
installation technology for machine tools andmanufacturing systems)
Factory setting: NO

6.2.7

Calibration

Function group

Function

CAL
Calibration

HIF
LOWF

Endress+Hauser

Settings

Description

Learn High Flow

RUN
WAIT

Setting for the maximum flow rate that
occurs. 100 % value →  11,  20

Learn Low Flow

RUN
WAIT

Setting for the maximum flow rate that
occurs. 0 % value →  11,  20

25

Operating options

6.2.8

Flowphant T DTT31, DTT35

Settings for output - 2 x switch output

Functions of the switch point• Hysteresis function: The hysteresis function enables
two-point control via a hysteresis. Depending on themass flow, the hysteresis can be set via the switch pointSP and switchback point RSP.
• NO contact or NC contact: This switch function can beselected as required.
• Delay times for switch point SP and switchback point
RSP can be configured in increments of 1 s. This makes
it possible to filter out undesired temperature peaks ofshort duration or of high frequency.

%
1
SP
RSP

t
1
0

2

1
0

3
A0005280

 15
1
2
3

Function group

Function

OUT
Output 1
OUT2
Output 2, optional

MODE

Switching mode

SP switch point; RSP switchback point

Hysteresis function
NO contact
NC contact

Settings

Description

FLOW
TEMP

Output switching mode for channel 2
FLOW: flow rate
TEMP: temperature
Factory setting: FLOW

UNIT

Technical unit

xC
xF

Temperature unit selection (°C or °F)
is only visible if the switching Function
mode MODE is set to temperature
TEMP in the 2nd output.

Factory setting: °C
FUNC
FNC2

Switching
characteristics

HYNC

Hysteresis/NC contact

HYNO

Hysteresis/NO contact→  26
Factory setting: HYNO

SP
SP2

Switch point
value

0,0

Enter value 5 to 100 % in increments of 1 %.
Factory setting: 50 %or optionally for SP2:Enter value –15 to +85 °C (–5 to +185 °F) in
increments of 1 °C (1 °F) if the switching mode
MODE is set to temperature TEMP.
Factory setting: 55 °C

26Endress+Hauser

Flowphant T DTT31, DTT35

Function group

Operating options

Function

Settings

Description

SPL
SP2L

Switch point"Learn"RUN
WAIT

RUN, WAIT: Take the current flow rate as theswitch point SP or SP2.→  12,  21

RSP
RSP2

Switchback point
value

0,0

Enter value 0 to 95 % in increments of 1 %.
Factory setting: 40 %must be at least 5 % less than
 Valueswitch point (SP or SP2).
or optionally for RSP2:Enter value –20 to +80 °C (–4 to +176 °F) in
increments of 1 °C (1 °F) if the switching mode
MODE is set to temperature TEMP.
must be at least 5 °C (9 °F) less
 Valuethan switch point 2 (SP2).
Factory setting: 50 °C

TSP
TSP2

Switch point
delay

0,0

TRSP
TRSP2

Switchback point
delay

0,0

Can be configured from0 to 99 s in increments of 1 s, as required.
Factory setting: 0 s
Can be configured from0 to 99 s in increments of 1 s, as required.
Factory setting: 0 s

6.2.9

Settings for output - 1 x analog output (4 to 20 mA) and 1 x switch output

Function group

Function

4-20
Output 1

MODE

Measuredvariable foranalog output

Settings

Description

FLOW
TEMP

Output FLOW: flow rate or TEMP:
temperature
TEMP (temperature) is set, the Ifmeasuring
range is fixed at–20 to +85 °C (–4 to +185 °F) .

Factory setting: FLOW
FCUR

Failure current

MIN
MAX
HOLD

Current value in the event of an error:
MIN = ≤ 3.5 mA
MAX = ≥ 21.7 mA
HOLD = last current value
Factory setting: MAX

OUT
Output 2

MODE

Switching mode

FLOW
TEMP

UNIT

Technical unit

xC
xF

Output switching mode FLOW: flow rate or
TEMP: temperature
Factory setting: temperature (TEMP)
Temperature unit selection (°C or °F)
is only visible if the switching Function
mode MODE is set to temperature
TEMP in the 2nd output.

Endress+Hauser

27

Operating options

Function group

Flowphant T DTT31, DTT35

Function

Settings

Description
Factory setting: °C

FUNC

Switching
characteristics

HYNC
HYNO

HYNC: hysteresis/NC contact
HYNO: hysteresis/NO contact→  26
Factory setting: HYNO

SP

Value switch
point

0,0

Enter value 5 to 100% in increments of 1 %.
Factory setting: 50%
Enter value –15 to +85 °C (–5 to +185 °F) in
increments of 1 °C (1 °F) if the switching mode
MODE is set to temperature TEMP.
Factory setting: 55 °C

SPL

Switch point'Learn'RUN
WAIT

RUN, WAIT: Take the current flow rate as theswitch point SP. See 'Navigating the Learn
function'→  11,  20.

RSP

Switchback point
value

0,0

Enter value 0 to 95% in increments of 1 %.
must be at least 5 % less than
 Valueswitch point SP.
Factory setting: 40 %Enter value –20 to +80 °C (–4 to +176 °F) in
increments of 1 °C (1 °F) if the switching mode
MODE is set to temperature TEMP.
must be at least 5 °C (9 °F) less
 Valuethan switch point SP2.
Factory setting: 50 °C

TSP

Switch point
delay

0,0

Can be configured from0 to 99 s in increments of 1 s, as required
Factory setting: 0 s

TRSP

Switchback point
delay

0,0

Can be configured from0 to 99 s in increments of 1 s, as required
Factory setting: 0 s

6.2.10Setting the service functions

Function group

Function

Settings

Description

SERV
Service functions

LOCK

Locking code0Enter the device locking code.

Code

Change locking
code0

User-defined numerical code 1 to 9 999
0= no locking
Only visible if the locking code is valid.

PRES

Reset

NO
YES

Reset all entries to the delivery settings.

28

Endress+Hauser

Flowphant T DTT31, DTT35

Function group

Operating options

Function
REV'C

Static revisioncounter

STAT

Device status

Settings

Description

0

Configuration counter, incremented each time
the configuration is changed.

LST'D

Last error0

Displays the last error to occur.

Switch output
versionSIM
SIM2

Simulation for 2
x switch output

OFF
OPEN
CLOS

No simulation
Switch output open
Switch output closed

Analog output
version(4 to 20 mA)

SIM
SIM2

Simulation for 1
x analog output(SIMA) and 1 x
switch output
(SIM)

OFF
OPEN
CLOS

No simulation
Switch output open
Switch output closed

3.5
4
8
...

3.5, 4, 8...:Simulation values for analog output in mA(3.5/4.0/8.0/12.0/16.0/20.0/21.7)

6.3

Access to the operating menu via the operating tool

1

2

3

A0008072

 16
1
2
3

Operation, visualization and maintenance with PC and configuration software

PC with FieldCare configuration software
Configuration kit TXU10-AA or FXA291 with USB port
Flow switch

Endress+Hauser

29

Diagnostics and troubleshooting

6.3.1

Flowphant T DTT31, DTT35

Additional operating options

In addition to the operating options listed in the previous "Local operation" section, further
information about the device is available via the FieldCare configuration software:
Function group

Function (display)

SERV (service)

Switching operations 1
Number of changes in the switching state for switch
Switching operations 2, optional output 1; optionally for switch output 2

INFO (device information) TAG 1
TAG 2

6.3.2

Description

Tagging, 18-digit

Order code

Order code

Device serial number-

Sensor serial number-

Electronics serial number-

Device version

Displays the overall device version

Hardware revision-

Software revision-

Notes on operation with FieldCare

FieldCare is a universal configuration and service software based on FDT/DTM technology.
The "PCP Communications DTM" and the Flowphant DeviceDTM are needed to configure
the Flowphant T DTT31/35 with FieldCare.
This device supports offline operation and the transfer of parameters from and to thedevice. Online device operation is not supported.
Detailed information on FieldCare is provided in the associated Operating Instructions(BA027/S/c4) or at www.endress.com.

7

Diagnostics and troubleshooting

7.1

General troubleshooting

If an error occurs in the device, the color of the status LED changes from green to red and thelighting of the digital display from white to red. A flashing red/green status LED signals awarning. The display shows:• An E-code in the event of errors
The measured value is uncertain if an error occurs.
• A W-code in the event of warnings
The measured value is reliable if warnings occur.

30

Endress+Hauser

Flowphant T DTT31, DTT35

Diagnostics and troubleshooting

Code Explanation

RemedyE011 Device configuration is incorrect

Perform device reset →  28

E012 Measurement error or medium temperature outside themeasurable range

Check the medium temperature; return thedevice to the manufacturer if necessary

E013 Sensor heating defective

Return device to manufacturer

E019 Power supply out of specification

Check operating voltage

E015
E020 Memory error

Return device to manufacturer

E021
E022 Power is only supplied to the device via the communicationinterface (measurement is disabled)

Check operating voltage

E042 Output current can no longer be generated (only for
4 to 20 mA output, e.g. load too high at analog output or open
analog output)

Check load; switch off analog output

Code

RemedyExplanation

W107 Simulation active
W200 Medium temperature out of specification (>85 °C)

Check the medium temperature and adapt it
to the specification if necessary

W202 Measured flow outside the range between the set Low andHigh Flow (< –10% or >110%)

Set the High and Low Flow again; reset thedevice to the factory default setting if
necessary (PRES function)

W209 Device starting up
W210 Configuration changed (warning code is displayed for approx.
15 s))
W240 Flow velocity too high (> 3 m/sin water), the device is being
operated outside its specified measuring range. The
measurement is uncertain.

Reduce the flow velocity of the medium

W250 Number of max. switching cycles exceeded
W260 Values for High Flow (HIF) and Low Flow (LOWF) are too
close together

Set the High and Low Flow again (values arefurther apart); reset the device to the factory
default setting if necessary (PRES function)

W270 Short-circuit and overload at output 1

Check output wiring

W280 Short-circuit and overload at output 2

Check output wiring

W432 Values for High Flow (HIF) or Low Flow (LOWF) could not be
determined with certainty. The device can still be operated,
however. →  20

Set the High and Low Flow again (keep flow
velocity constant!)Endress+Hauser

31

Diagnostics and troubleshooting

7.2

Firmware history

7.2.1

ReleaseFlowphant T DTT31, DTT35

The release number on the nameplate and in the Operating Instructions indicates the device
release: XX.YY.ZZ (example 01.02.01).
XX• Change to main version• No longer compatible• The device and Operating Instructions change

YY• Change to functionality and operation• Compatible• No changes to the Operating Instructions

ZZ• Fixes and internal changes• No changes to the Operating Instructions

7.2.2

Software history

Date

Software version

Softwaremodifications

Documentation

Material number

04.201401.00.08-

BA00235R/09/EN/
16.14

7125224301.201401.00.08-

BA00235R/09/EN/
15.14

71243851

07.201301.00.08-

BA00235R/09/EN/
14.13

71226086

11.200801.00.04-

BA235r/09/en/
13.10

71098493

11.200801.00.04-

BA235r/09/en/
06.09

71098493

11.200801.00.04

Calibration function:
variable setting forHIF (70 to 100%)and LOWF(0 to 20%); warning
message W200

BA235r/09/en/
11.08

71036990

12.2006

01.00.03-

BA235r/09/en/
10.07

71036990

12.2006

01.00.03

Analog output
BA235r/09/en/
version (4 to 20 mA) 12.06
available

71036990

02.2006

01.00.00

Original firmware

71022232

32

BA218r/09/en/
02.06

Endress+Hauser

Flowphant T DTT31, DTT35

8Maintenance

Maintenance

Buildup on the sensor negatively affects measurement accuracy‣ Check the sensor for buildup at regular intervals.
LCAUTION
Damage to the device.
‣ Ensure that the process is unpressurized before you remove the device.
‣ Do not twist the device out of the process connection thread at the housing.
‣ Always use a suitable open-ended wrench to remove the device→  42.

8.1

Cleaning

The device must be cleaned whenever necessary. Cleaning can also be done when the device isinstalled (e.g. CIP Cleaning in Place / SIP Sterilization in Place). When cleaning the device,care must be taken to ensure that it is not damaged.
NOTICE
Avoid damage to the device and the system‣ Pay attention to the specific IP code when cleaning.

9

RepairRepairs are not envisaged for the device.

9.1

ReturnThe requirements for safe device return can vary depending on the device type and national
legislation.
1.

Refer to the website for more information:
http://www.endress.com/support/return-material

2.

Return the device if repairs or a factory calibration are required, or if the wrong device
was ordered or delivered.

9.2

Disposal

The device contains electronic components and must, therefore, be disposed of as electronic
waste in the event of disposal. When disposing, comply with national disposal regulations,and separate and recycle the device components based on the materials.

Endress+Hauser

33

Accessories

Flowphant T DTT31, DTT35

10.1

Device-specific accessories

10.1.1

Welding boss with sealing taper• Collar welding boss movable with sealing taper, washer
and pressure screw G½"• Material of parts in contact with the process: 316L,
PEEK,• Max. process pressure 10 bar (145 psi)
• Order number with pressure screw 51004751• Order number without pressure screw 51004752"6 (0.24)
G½”

1

AF24

36 (1.42)

Accessories

2

25 (0.98)

1034"30 (1.18)
A0020709-EN

 17
1
2
3
4

Pressure screw, 303/304
Washer, 303/304
Sealing taper, PEEK
Collar welding boss, 316L

Collar welding boss

• Collar welding boss movable with sealing taper andwasher• Material of parts in contact with the process: 316L,
PEEK• Max. process pressure 10 bar (145 psi)
• Order number without pressure screw: 51004752

G½”

25 (0.98)

10.1.2Dimensions in mm (in)!6(0.24)!30 (1.18)
A0020710

 18

34

Dimensions in mm (in)Endress+Hauser

Flowphant T DTT31, DTT35

Compression fitting• Movable clamping ring, various process connections• Material of compression fitting and parts in contact
with the process: 316L
• Order number: TA50-..... (depending on the processconnection)"6 (0.24)

45

+1

AF27

(1.77+0.04)

AF14

15 (0.59)

10.1.3

Accessories

G½”
A0020174-EN

 19

VersionF in mm (in)

TA50

G½"

G¾"

G1"

NPT½"

Endress+Hauser

L ~ in mm (in)SW/AF 27 47 (1.85)

SW/AF 32 63 (2.48)

SW/AF 41 65 (2.56)

SW/AF 22 50 (1.97)

Dimensions in mm (in)

C in
mm
(in)

B in mm(in)Clamping ringmaterialMax.
process
temperatureMax. processpressure-

15 (0.6)

SS316 1)800 °C(1 472 °F)

40 bar at
20 °C (580 psi
at 68 °F)

PTFE 2)200 °C(392 °F)

5 bar at 20 °C(72.5 psi at 68°F)

SS316 1)800 °C(1 472 °F)

40 bar at
20 °C (580 psi
at 68 °F)

PTFE 2)200 °C(392 °F)

5 bar at 20 °C(72.5 psi at 68°F)

25 (0.98) SS316 1)

800 °C(1 472 °F)

40 bar at
20 °C (580 psi
at 68 °F)

PTFE 2)200 °C(392 °F)

5 bar at 20 °C(72.5 psi at 68°F)

SS316 1)800 °C(1 472 °F)

40 bar at
20 °C (580 psi
at 68 °F)---

20 (0.8)

20 (0.8)

35

Accessories

Version1)
2)

Flowphant T DTT31, DTT35

F in mm (in)L ~ in mm (in)

C in
mm
(in)

B in mm(in)Clamping ringmaterialMax.
process
temperatureMax. processpressure

R½"

SW/AF 22 52 (2.05)-

20 (0.8)

PTFE 2)200 °C(392 °F)

5 bar at 20 °C(72.5 psi at 68
°F)

R¾"

SW/AF 27 52 (2.05)-

20 (0.8)

PTFE 2)200 °C(392 °F)

5 bar at 20 °C(72.5 psi at 68°F)

SS316 clamping ring: can only be used once. Once released the compression fitting cannot be repositioned on thethermowell. Fully adjustable immersion length on initial installation
PTFE/Elastosil® clamping ring: reusable; once loosened, the compression fitting can be moved up or down on thethermowell. Fully adjustable immersion length

10.2

Communication-specific accessories

10.2.1

Coupling; connecting cable• Coupling M12x1; straight• Connection to M12x1 housing connector• Materials: body PA, coupling nut CuZn, nickel-plated• Degree of protection (connected): IP 67• Order number: 52006263
A0035843

35 (1.38)

41(1.61)

20(0.79)• M12x1 coupling; elbowed, for termination ofconnecting cable by user
• Connection to M12x1 housing connector• Materials: body PBT/PA,• Coupling nut GD-Zn, nickel-plated• Degree of protection (connected): IP 67• Order number: 51006327

14.8(0.58)
A0020722 20

36

Dimensions in mm (in)Endress+Hauser

Flowphant T DTT31, DTT35• PVC cable (terminated), 4 x 0.34 mm2 with M12x1
coupling, elbowed, screw plug, length 5 m (16.4 ft)• Degree of protection: IP67
• Order number: 51005148
Core colors:• 1 = BN brown• 2 = WH white• 3 = BU blue
• 4 = BK black• PVC cable, 4x 0.34 mm2with M12x1 coupling, with
LED, elbowed,• 316L screw plug, length5 m (16.4 ft), specially forhygiene applications,• Degree of protection (connected): IP69K• Order number: 52018763

Accessories

1

2

4

3

1 (BN)
2 (WH)
3 (BU)
4 (BK)
A0020723

ye1
gn

ye2

Display:• gn: device is operational• ye1: switch status 1• ye2: switch status 2 Not suitable for 4 to 20 mA analog output!
10.2.2

A0035844

Configuration kit• Configuration kit for PC-programmable transmitters;
Configuration software and interface cable for PC with USB port and 4-pin post connector
Order code: TXU10-AA• "Commubox FXA291" configuration kit with interface cable for PC with USB port. Intrinsically safe CDI interface(Endress+Hauser Common Data Interface) for transmitters with 4-pin post connector. Suitable configuration
software is FieldCare for example.
Order code: FXA291

10.2.3

Configuration software

The FieldCare 'Device Setup' configuration programs can be downloaded free of charge fromthe Internet at:
www.produkte.endress.com/fieldcare
FieldCare ’Device Setup’ can also be ordered from an Endress+Hauser sales office.

Endress+Hauser

37

Technical data

Flowphant T DTT31, DTT35

11

Technical data

11.1

Input

11.1.1

Measured variable• Flow velocity of liquid media (calorimetric measuring principle)• Temperature (RTD), optionally for two switch outputs or additional analog output
11.1.2

Measuring range

Flow0.03 to 3 m/s (0.1 to 9.84 ft/s), as relative value between 0 to 100%; maximum
display resolution: 1%

Temperature–20 to +85 °C (–4 to +185 °F); display resolution: 1 °C (1 °F)

11.2

Output11.2.1Signal on alarm

Analog output: signal on alarm according to NAMUR NE43
Underranging

Linear drop to 3.8 mA

Overranging

Linear rise to 20.5 mA

Sensor breakage; sensor
short-circuit≤3.6 mA or ≥ 21.0 mA (output 21.7 mA is guaranteed for setting ≥ 21.0 mA)

Switch outputs

In the safe state (switch open)

11.2.2

Switching capacity

DC voltage version:
Switch status ON

Ia ≤ 250 mA

Switch status OFF

Ia ≤ 1 mA

Switching cycles> 10,000,000

Voltage drop PNP≤2 V

Overload protection

Switching current checked automatically; switched off in event of overcurrent,switching current checked again every 0.5 s; max. capacitive load: 14 µF for max.
supply voltage (without resistive load); periodic disconnection from a protective
circuit in event of overcurrent (f = 2 Hz) and "Warning" displayed

11.3

Power supply

11.3.1

Supply voltage

DC voltage version: 18 to 30 VDC (reverse polarity protection)
38

Endress+Hauser

Flowphant T DTT31, DTT35

Technical data

Behavior in the event of overvoltage (>30 V)• The device works continuously up to 34 VDC without any damage• No damage in event of transient overvoltage up to 1 kV (according to EN 61000-4-5)• If the supply voltage is exceeded, the specified characteristics are no longer guaranteed
Behavior in the event of undervoltage
If the supply voltage falls below the minimum value, the device switches off in a definedmanner (status as if not supplied with power = switch open)
The device may be powered only by a power supply unit that operates using a limited
energy circuit in accordance with UL/EN/IEC 61010-1, Section 9.4 and the requirements
in Table 18.
11.3.2Current consumption< 100 mA (no-load) at 24 VDC, max. 150 mA (no-load); with reverse polarity protection

11.4

Environment

11.4.1

Ambient temperature range–40 to +85 °C (–40 to +185 °F)
11.4.2

Storage temperature–40 to +85 °C (–40 to +185 °F)
11.4.3Operating altitude

Up to 4 000 m (13 123.36 ft) above sea level
11.4.4Degree of protection

IP65

M16 x 1.5 or NPT ½", valve connector

IP66

M12 x 1 connector

11.4.5

Shock resistance

50 g as per DIN IEC 68-2-27 (11 ms)
11.4.6

Vibration resistance• 20 g as per DIN IEC 68-2-6 (10-2000 Hz)• 4 g as per marine approval
11.4.7

Electromagnetic compatibility (EMC)

EMC to all relevant requirements of the IEC/EN 61326-series and NAMUR Recommendation
EMC (NE21). For details, refer to the Declaration of Conformity.
Maximum fluctuations during EMC-tests: < 1 % of measuring span.
Interference immunity to IEC/EN 61326-series, requirements for industrial areas
Interference emission to IEC/EN 61326-series, electrical equipment Class B
Endress+Hauser

39

Technical data

11.4.8Flowphant T DTT31, DTT35

Electrical safety• Protection class III• Overvoltage category II• Pollution level 2

11.5

Process

11.5.1

Process temperature range–20 to +85 °C (–4 to +185 °F)
The sensor can be exposed to process temperatures up to 130 °C (266 °F) without being
damaged. The monitoring system switches off automatically at T ≥ 85 °C (185 °F) and starts
again at T ≤ 85 °C (185 °F).
11.5.2

Process pressure range

Maximum permissible process pressure Pmax ≤ 10 MPa = 100 bar (1 450 psi)
The maximum process pressure for the conical metal-metal process connection (MBoption) for the device is 1.6 MPa = 16 bar (232 psi).
11.5.3

Flow limit

Liquids: 0 to 3.0 m/s (0 to 9.84 ft/s)
11.5.4

Operational range

Liquids: 0.03 to 3.0 m/s (0.1 to 9.84 ft/s)

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Flowphant T DTT31, DTT35

Technical data

11.6

Mechanical construction

11.6.1

Design, dimensions
M12x1

38.7 (1.52)

M16x1.5 / NPT ½”!42.3 (1.66)!38.5 (1.52)

38.7 (1.52)
24 (0.95)

24 (0.95)!6 (0.24)!6 (0.24)!6 (0.24)
L

97.1 (3.82)
42.1 (1.66)

52 (2.05)

36 (1.42)

L

L

A0005279

All dimensions in mm (in)L = insertion lengthM12x1 connector as per IEC 60947-5-2
Valve connector M16x1.5 or NPT ½" as per DIN 43650A/ISO 4400

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Technical data

11.6.2

Flowphant T DTT31, DTT35

DTT31 design, dimensions of process connections

1
L2 L1

2

L

L1 = L2A

B

C
A0007101

 21
L

Process connection versions

Insertion length

Item
no.

VersionThread length L1

Screw-in length L2

A

Without process connection. Suitable welding
bosses and compression fittings. →  34

-

-

B

Threaded process connection:• 14.3 mm (0.56 in)• 19 mm (0.75 in)• 5.8 mm (0.23 in)• 8.1 mm (0.32 in)

ANSI NPT ¼" (1 = AF14)ANSI NPT ½" (1 = AF27)
C

Threaded process connection, inches,
cylindrical as per ISO 228:G¼" (2 = AF14)
G½" (2 = AF27)

42• 12 mm (0.47 in)• 14 mm (0.55 in)Endress+Hauser

Flowphant T DTT31, DTT35!56.5 (2.22)!64 (2.52)!50 (1.97)!68 (2.68)!66 (2.6)!84 (3.31)

PG

PH

L

!27
(1.06)!44(1.73)

PL

13(0.51)

13(0.51)!61.5 (2.42)!82 (3.23)!100 (3.94)!39 (1.54)!51 (2.01)!56 (2.21)!68 (2.68)

18(0.71)

LL

L1

G½”

13
(0.51)

LB

MB
18(0.71)

HL

SW/AF
22

!43.5 (1.71)!50.5 (1.99)

37(1.46)

DL

19(0.75)DB

B

L

10 (0.39)

DTT35 design, dimensions of process connections

L

11.6.3

Technical data

A0011776

 22

Process connection versions

All dimensions in mm (in).
L = insertion length L

Item no.

Process connection versions DTT35

Hygiene standard

DB

Clamp 1" to 1½" (ISO 2852) or DN 25 to 40 (DIN
32676)DL

Clamp 2" (ISO 2852) or DN 50 (DIN 32676)

3-A marked and EHEDG certified (only in
conjunction with self-centering sealaccording to EHEDG position paper)

HL

APV Inline, DN50, PN40, 316L, B = bores 6 x⌀8.6 mm (0.34 in) + 2 x M8 thread

LB

Varivent F DN25-32, PN 40, 316L

LL

Varivent N DN40-162, PN 40, 316L

MB

Metal sealing system for hygienic processes, G½"
thread, thread length
L1 = 14 mm (0.55 in). Suitable welding boss
available as an accessory. 316L

Endress+HauserWith 3-A symbol and EHEDG certification-

43

Technical data

Flowphant T DTT31, DTT35

Item no.

Process connection versions DTT35

PG

DIN 11851, DN25, PN40 (including coupling nut),
316L

PH

DIN 11851, DN40, PN40 (including coupling nut),
316L

PL

DIN 11851, DN50, PN40 (including coupling nut),
316L

Hygiene standard

3-A marked and EHEDG certified (only in
conjunction with self-centering sealaccording to EHEDG position paper)

The VARINLINE® housing connection flange is suitable for welding into the conical or
torispherical head in tanks or vessels with a small diameter (≤ 1.6 m (5.25 ft)) and up toa wall thickness of 8 mm (0.31 in). The Varivent type F cannot be used for installations
in pipes in combination with the VARINLINE housing connection flange.
11.6.4Weightapprox. 300 g (10.58 oz), depends on process connection and sensor length
11.6.5Materials• Process connection AISI 316L
Surfaces in contact with the process in hygienic version with surface quality Ra ≤0.76 µm (30 µin)
• Coupling nut AISI 304• AISI 316L housing, with surface quality Ra ≤ 0.76 µm (30 µin)
O-ring between housing and sensor module: EPDM
• Electrical connection• M12 connector, exterior AISI 316L, interior polyamide (PA)• Valve connector, polyamide (PA)• M12 connector, exterior 316L
• Cable sheath polyurethane (PUR)• O-ring between electrical connection and housing: FKM• Display, polycarbonate PC-FR (Lexan®)
Seal between display and housing: SEBS THERMOPLAST K®
Keys, polycarbonate PC-FR (Lexan®)

11.7

Certificates and approvals

11.7.1

CE mark

The product meets the requirements of the harmonized European standards. As such, itcomplies with the legal specifications of the EC directives. The manufacturer confirms
successful testing of the product by affixing to it the CE-mark.

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Flowphant T DTT31, DTT35

11.7.2

Technical data

Other standards and guidelines• IEC 60529:
Degrees of protection provided by enclosures (IP code)• IEC/EN 61010-1:
Protection Measures for Electrical Equipment for Measurement, Control, Regulation andLaboratory Procedures• IEC/EN 61326 series:
Electromagnetic compatibility (EMC requirements)• NAMUR:International user association of automation technology in process industries(www.namur.de)• NEMA:
United States National Electrical Manufacturers Association.
11.7.3

UL approval

More information under UL Product iq™, search for keyword "E225237")
11.7.4

Hygiene standard• EHEDG certification, type EL CLASS I. EHEDG certified/tested process connections →  42
• 3-A Authorization No. 1144, 3-A Sanitary Standard 74-07. Listed process connections→  4311.7.5Materials in contact with food/product (FCM)

The materials of the thermometer in contact with food/product (FCM) comply with thefollowing European regulations:• (EC) No. 1935/2004, Article 3, Paragraph 1, Articles 5 and 17 on materials and articles
intended to come into contact with food.
• (EC) No. 2023/2006 on good manufacturing practice (GMP) for materials and articles
intended to come into contact with food.
• (EC) No. 10/2011 on plastic materials and articles intended to come into contact with food.
• All surfaces in contact with the medium are free from materials derived from bovine
animals or other livestock (ADI/TSE)
11.7.6

Schiffbauzulassung

Information on the Type Approval Certificates currently available (DNVGL, BV, etc.) can beobtained from the sales organization.
11.7.7

Material certification

The material certificate 3.1 (according to standard EN 10204) can be requested separately.
The "short form" certificate includes a simplified declaration with no enclosures of documents
related to the materials used in the construction of the single sensor and guarantees thetraceability of the materials through the identification number of the thermometer. The data
related to the origin of the materials can subsequently be requested by the client if necessary.

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Technical data

11.8

Supplementary documentation

11.8.1

Technical Information

Flowphant T DTT31, DTT35• Easy Analog RNB130: TI120R/09/en• Process display unit RIA452: TI113R/09/en• Universal data manager Ecograph T: TI01079R/09/en• Data logger Minilog B: TI089R/09/en
11.8.2

Operating Instructions

Flow switch Flowphant T DTT31, DTT35: BA00235R/09/en

46

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*71509929*
71509929

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