Endress+Hauser Flowphant T DTT31, Flowphant T DTT35 Operating Instructions Manual

Products Solutions Services

BA00235R/09/EN/16.14
71252244

SW Version

01.00

Operating Instructions

Flowphant T
DTT31, DTT35

Flow Switch

AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[e-mail]
832-615-3588

Brief overview

For quick and easy commissioning:

Safety instructions → Page 4

Æ

Installation → Page 7

Æ

Wiring → Page 13

Æ

Operation → Page 14

Display and operating elements

Onsite operation

Operation with PC and configuration software

Æ

Troubleshooting → Page 32

Endress+Hauser

DTT31, DTT35

Table of contents

1 Safety instructions . . . . . . . . . . . 4

1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Installation, commissioning and

operation . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Operational safety . . . . . . . . . . . . . . . . . . . 4

1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5 Notes on safety conventions and icons . . 5

2 Device identification . . . . . . . . . 6

2.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Certificates and approvals . . . . . . . . . . . . 6

3 Installation . . . . . . . . . . . . . . . . . 7

3.1 Incoming acceptance, storage . . . . . . . . . 7

3.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3 Process connection . . . . . . . . . . . . . . . . . . 8

3.4 Installation instructions . . . . . . . . . . . . . 10

4 Wiring . . . . . . . . . . . . . . . . . . . . 12

4.1 DC voltage version with M12x1

connector . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 DC voltage version with valve connector 13

5 Operation. . . . . . . . . . . . . . . . . . 13

5.1 Onsite operation . . . . . . . . . . . . . . . . . . . 13

5.2 Operation with PC and configuration

software . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6 Maintenance. . . . . . . . . . . . . . . 26

7 Accessories . . . . . . . . . . . . . . . . 27

7.1 Welding bosses and coupling . . . . . . . . 27

7.2 Electrical connection . . . . . . . . . . . . . . . . 28

7.3 Configuration kit . . . . . . . . . . . . . . . . . . . 29

7.4 Configuration software . . . . . . . . . . . . . . 30

8 Troubleshooting. . . . . . . . . . . . 31

8.1 Error messages and warning messages 31

8.2 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8.4 Change status (release) . . . . . . . . . . . . . 33

8.5 Software history . . . . . . . . . . . . . . . . . . . . 33

9 Technical data. . . . . . . . . . . . . . 34

9.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . 34

9.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9.3 Operating conditions . . . . . . . . . .. . . . . . . . 35

Safety instructions DTT31, DTT35

4 Endress+Hauser

1 Safety instructions

1.1 Designated use

The Flowphant T 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 conforms to applicable
standards and EC regulations. It can, however, be a source of danger if used incorrectly or for
anything other than the designated use.

1.2 Installation, commissioning and operation

Installation, electrical connection, commissioning, operation and maintenance of the measuring
system must be carried out by trained, qualified specialists authorized to perform such work by
the facility's owner-operator. The specialist must have read and understood these Operating
Instructions and must follow the instructions they contain. The device may only be modified and
repair work carried out if this is explicitly permitted in the Operating Instructions. Damaged
devices which could be a source of danger may not be commissioned and must be labeled and
identified as defective.

1.3 Operational safety

• Functional safety
The Flowphant T flow switch has been developed in accordance with the IEC 61508 and
IEC 61511-1 (FDIS) standards. The device version with a PNP switch output and additional
analog output is equipped with features for detecting and preventing errors within the
electronics and software.

•Ex-area
The Flowphant T is not approved for use in Ex-areas.

1.4 Return

The following procedures must be carried out before a device is returned to Endress+Hauser:

• Always enclose a fully completed “Declaration of Contamination” form with the device. Only
then can Endress+Hauser transport and examine a returned device. A copy of the
“Declaration of Contamination” can be found on the second last page of these Operating
Instructions.

• Remove all fluid residues. This is particularly important if the fluid is hazardous to health, e.g.
flammable, toxic, caustic, carcinogenic, etc.

WARNING

!

Do not return a device if you are not absolutely certain that all traces of hazardous
substances have been removed, e.g. substances which have penetrated crevices or diffused
through plastic.

DTT31, DTT35 Safety instructions

Endress+Hauser 5

1.5 Notes on safety conventions and icons

Always refer to the safety instructions in these Operating Instructions labeled with the following
symbols:

Symbol Meaning

A0011190-EN

WARNING!

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

A0011191-EN

CAUTION!

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

A0011192-EN

NOTICE

This symbol contains information on procedures and other facts which do not
result in personal injury.

A0011193

Indicates additional information, Tip

Device identification DTT31, DTT35

6 Endress+Hauser

2 Device identification

2.1 Nameplate

To identify your device, compare the complete order code and the version information on the
delivery papers with the data on the nameplate.

A0006981

Fig. 1: Nameplate for device identification (as example)

2.2 Certificates and approvals

CE mark, declaration of conformity

On leaving the factory, the device was in perfect condition from the point of view of safety. It
complies with the standards EN 61010 -1 "Protection Measures for Electrical Equipment for
Measurement, Control, Regulation and Laboratory Procedures" and with the EMC requirements
of IEC/EN 61326. The device meets the legal requirements of the EU Directives. The
manufacturer confirms a positive completion of all tests by fitting the unit with a CE mark.

Hygiene standard

The DTT35 flow switch meets the requirements of Sanitary Standard no. 74-06.
Endress+Hauser confirms this by applying the 3–A symbol (not valid for process connection
conical metal-metal).

16YV

MEASURING EQUIPMENT

m
n

o

p

q

r

s

t

u

v

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-

12

IP6X

m Order code r Connection diagram

n Serial number s Measuring range

o TAG number t Ambient temperature range

p Release number (change status) u Degree of protection

q Connection values v Approvals

The release number indicates the change status of the device. A change in the last two
figures does not have any affect on the compatibility, → Chap. 8.4.

DTT31, DTT35 Installation

Endress+Hauser 7

UL listed for Canada and USA

The device was examined by Underwriters Laboratories Inc. (UL) in accordance with the
standards UL 61010B-1 and CSA C22.2 No. 1010.1-92 and listed under the number E225237
UL.

3 Installation

3.1 Incoming acceptance, storage

• Incoming acceptance:
Check the packaging and the device for damage. Check that the goods delivered are complete
and nothing is missing.

•Storage:
Storage temperature -40 °C to +85 °C (-40 °F to 185 °F).

3.2 Dimensions

A0005279

Fig. 2: Dimensions in mm (in)

Version L with 30 and 100 mm (1.18 and 3.94 in) for DTT31
Version L with 30, 50 and 100 mm (1.18, 1.97 and 3.94 in) for DTT35
M12x1 connector as per IEC 60947-5-2
M16x1.5 or NPT ½" valve connector as per DIN 43650A/ISO 4400

42.3 (1.66)

97.1 (3.82)

42.1 (1.66)

38.7 (1.52)

38.7 (1.52)

36 (1.42)

24 (0.95)

24 (0.95)

52 (2.05)

38.5 (1.52)

M16x1.5 / NPT ½”

M12x1

LL L

6 (0.24)

6 (0.24)

6 (0.24)

Installation DTT31, DTT35

8 Endress+Hauser

3.3 Process connection

3.3.1 DTT31 design, dimensions of the process connections

A0007101

Fig. 3: Process connection versions of DTT31

m

AB

C

n

L

L1

L2

L1 = L2

Item
no.

Version Insertion length L Thread length L

1

Thread length L

2

A Without process connection. For suitable

welding boss and coupling see chapter
’accessories’.

30 or 100 mm
(1.18 or 3.94 in)

--

B Thread process connection:

• ANSI NPT ¼" (m = AF15)

• ANSI NPT ½" (m = AF22)

• 14.3 mm (0.56 in)

• 19 mm (0.75 in)

• 5.8 mm (0.23 in)

• 8.1 mm (0.32 in)

C Thread process connection cylindrical as

per ISO 228:

•G¼" (n = AF19)

•G½" (n = AF27)

• 12 mm (0.47 in)

• 14 mm (0.55 in)

-

DTT31, DTT35 Installation

Endress+Hauser 9

3.3.2 DTT35 design, dimensions of the process connections

A0011776

Fig. 4: Hygienic process connections. All dimensions in mm (in)

L = Insertion length L

DB

DL

56.5 (2.22)

64 (2.52)

LL

18 (0.71)

HL

B

19 (0.75)

PL

13 (0.51)

PH

13 (0.51)

(APV-Inline)

(CLAMP 1”) (CLAMP 2”)

(Varivent N)

LB

18 (0.71)

(Varivent F)

(DIN 11851)

(DIN 11851)

L

13 (0.51)

PG

(DIN 11851)

10 (0.39)

MB

L1

SW/
AF 22

37 (1.46)

G½”

43.5 (1.71)
50.5 (1.99)

84 (3.31)

68 (2.68)

61.5 (2.42)

82 (3.23)

100 (3.94)

66 (2.6)

50 (1.97)

51 (2.01)
68 (2.68)

27 (1.06)
44 (1.73)

39 (1.54)
56 (2.21)

Item no. Process connection versions DTT35

Insertion length L = 30, 50 or 100 mm (1.18, 1.97 or 3.94 in)

MB Conical metal-metal for hygienic processes, G½" thread, thread length L1 = 14 mm (0.55 in).

Suitable welding boss available as accessory.

DB Clamp 1"...1½" (ISO 2852) or DN 25...DN 40 (DIN 32676)

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

LB Varivent F DN25-32, PN 40

LL Varivent N DN40-162, PN 40

HL APV-Inline, DN50, PN40, 316L, B = bores 6 x Ø8.6 (0.34 in) + 2 x thread M8

PL DIN 11851, DN50, PN40 (including coupling nut)

PG DIN 11851, DN25, PN40 (including coupling nut)

PH DIN 11851, DN40, PN40 (including coupling nut)

The maximum process pressure for the conical metal-metal process connection
(→ Fig. 4, item MB) is 16 bar!

Installation DTT31, DTT35

10 Endress+Hauser

3.4 Installation instructions

3.4.1 Installation conditions

NOTICE

Do not turn the device into the process connection thread at the housing. Always install the
device at the spanner flats (Fig. 5, item 1). Use a suitable open-ended wrench for this task (see
Table → Chap. 3.3.1).

• The onsite display can be rotated electronically 180°, → Chap. 5.1 "Onsite operation".

• The upper housing section can be rotated mechanically up to 310°.

The sensor requires a fully developed flow profile for correct monitoring.
For this reason, steadying sections (5x DN) must be provided in the pipe after a pump,
pipe bend, internal fittings and cross-sectional changes.

• The sensor tip should be completely surrounded by medium.

• Position the sensor tip in the area of maximum fluid velocity (pipe
center).

• Minimum sensor immersion length: L

i

≥10 mm.

A0006976

Fig. 5: Installation conditions

Orientation

• For horizontal pipes: lateral installation.
Installation from above (see Fig. 5) only if the pipe is completely
filled with medium during operation.

• For vertical pipes: installation in the ascending pipeline.

• Installation of DTT35 by min. 3° inclination, because of self draining.

A0006977

Fig. 6: Correct orientation

80

%

L

i

v

m

1

80

%

80

%

80

%

3°=

DTT31, DTT35 Installation

Endress+Hauser 11

3.4.2 Mounting instructions for installation in hygienic processes

A0011673-EN

Fig. 8: Installation in hygienic processes

A Milk pipe connection as per DIN 11851 (connection PL, PG, PH), only in linkage with EHEDG certified and self

centering ring
B Varivent and APV-Inline (connection LB, LL, HL)
C Clamp as per ISO 2852 (connection DB, DL)

NOTICE

Do not install in down pipes open towards the end.
The sensor tip should never touch the pipe wall.

A0006978

Fig. 7: Incorrect installation!

ABC

Sensor with
milk pipe
connection

Sensor with
Varivent connection

Shaped
gasket

Companion
connection

O-Ring

Groove
slip-on nut

Centering ring

Sealing

Companion
connection

Companion
connection

Installation DTT31, DTT35

12 Endress+Hauser

3.4.3 Inlet and outlet run

NOTICE

The thermal measuring principle is sensitive to disturbed flow conditions.

‣ As a general rule, install the measuring device as far away as possible from any flow

disturbances. For further information → ISO 14511.

‣ If possible, 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 there are several flow disturbances present, the longest specified inlet run must be

maintained.

A0023225

Fig. 9: Inlet and outlet run

1Reduction
2Expansion
3 90° elbow or T-section
4Pump
5 Control valve
6 2x 90° elbow 2- or 3-dimensional

5 × DN

3 × DN

3 × DN

15 × DN

5 × DN

3 × DN

3 × DN

3 × DN

5 × DN

3 × DN

10 × DN

5 × DN

1

4

2

6

3

5

DTT31, DTT35 Wiring

Endress+Hauser 13

4 Wiring

4.1 DC voltage version with M12x1 connector

A0006818

Flowphant T with M12x1 connector
A1: 1x PNP switch output

A2: 2x PNP switch outputs R1 and m (R2)
A2’: 2x PNP switch output R1 and m (diagnosis/NC contact for "DESINA" setting)
A3: 1x PNP switch output and 1x analog output (4 to 20 mA)

CAUTION

!

To avoid any damage to 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 (→ Chap. 5.1.6, basic settings):
R2 = diagnosis/NC contact (more information on DESINA can be found at www.desina.de).

NOTICE

Once connected to the power supply, the sensor tip of the device heats up! The temperature can
reach up to approx. 90 °C (194 °F).

DTT35: Electrical cables must comply with 3-A standard.
They must be smooth, corrosion resistant and cleanable.

4...20 mA

L–

L–

L–

L+

L+

L+

2

2

2

1

1

1

3

3

3

4

4

4

R1

m

R2

R1

A1

A2
A2’

A3

Operation DTT31, DTT35

14 Endress+Hauser

4.2 DC voltage version with valve connector

P01-PTx3xxxx-04-xx-xx-xx-0 03

Fig. 10: Flowphant T with M16x1.5 valve connector or NPT ½"

B: 1x PNP switch output

5Operation

5.1 Onsite operation

The Flowphant T is operated by means of three keys. The digital display and the light emitting
diodes (LED) support navigation in the operating menu.

A0020825-EN

Fig. 11: Position of operating elements and possibilities for display

Operating keys

E

Communication jack

for personal computer

LED for status

Green = ok

Red = error/fault

LED red/green blinking = warning

Digital display
Illumination white (= ok)
Illumination red (= error/fault)

Yellow LEDs for switching states
LED on = switch closed
LED off = switch open

DTT31, DTT35 Operation

Endress+Hauser 15

5.1.1 Navigating in the operating menu

T09-TTR31xxx-19-xx-xx-xx-0 02

Fig. 12: Navigating in the operating menu

A Function group selection

B Function selection

w

Enter the operating menu

–Press the E key for longer than 3 s

x

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

y

Select the "Function" with the E key

z

Enter or change parameters with the + or − key

–Then return to "Function" with the E key Note: If software locking is enabled, it must be disabled before making

entries or changes

{

Return to the "Function group" by pressing the E key several times

–until the appropriate function group is reached again

|

Jump to the measuring position (Home position)

–Press the E key for longer than 3 s

}

Query to save data (select "YES" or "NO" with the + or − key)

–Confirm with the E key

Changes to the parameter settings only become effective if you choose s 'YES' when
asked to save data.

Operation DTT31, DTT35

16 Endress+Hauser

5.1.2 Navigating the Calibration function group (CAL)

Variable limits for HIF (Learn High Flow) or LOWF (Learn Low Flow) can be configured using
the 'Learn' function.

• HIF configuration (Learn High Flow): Enter a random flow rate between 70% and 100% of the
maximum value in the process. The measuring device uses this value to automatically
calculate the corresponding 100% value.

• LOWF configuration (Learn Low Flow): Enter a random flow rate between 0% and 20% of the
maximum value in the process. The measuring device uses this value to automatically
calculate the corresponding 0% value.

A0010787

Fig. 13: Navigating the 'Learn' function using the Calibration (CAL) function group as an example

B Select function

w

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

C Select settings

x

Select the "RUN" function with the + key, 'Learn' function is initialized

y

Select the flow rate with the + key, press for longer than 2 s:

– If the HIF is configured (Learn High Flow), the upper flow rate (70% - 100%) is selected. Enter the current relative
flow rate in increments of 1% with the + or - key (factory setting 80%).
– If the LOWF is configured (Learn Low Flow), the lower flow rate (0% - 20%) is selected. Enter the current relative
flow rate in increments of 1% with the + or - key (factory setting 0%).

z

Select the "WAIT" function with the E key

{

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

|

Or: The message "W432" appears on the display after 60 s

–A sufficiently stable flow rate was not detected during the learning process. The system takes an average of the 10
values last measured during the learning process.

}

Return to the CAL function group (Home position) with the E key

The device is still operative if message W432 appears. There can be large measuring
uncertainties however. Recommendation: Repeat 'Learn' process (points 1 to 4) until
"OK" appears on the display.

DTT31, DTT35 Operation

Endress+Hauser 17

5.1.3 Navigating the 'Learn' switch point (SPL)

A0005785

Fig. 14: Navigating the 'Learn' switch point

B Select function

w

SPL ('Learn' switch point), optional SPL2 ('Learn' switch point 2) with the E key

C Select settings

x

Select the "RUN" function with the + key, 'Learn' function is initialized

y

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

z

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

{

Or: The message "W432" or "NOK" appears on the display after 60 s

–W432: A sufficiently stable flow rate was not detected during the learning process. The system takes an average of
the 10 values last measured during the learning process.
–NOK: The switch point determined is under 5% of the measuring range and cannot be accepted as the switch point
must be a min. of 5% greater than the switch-back point (RSP).

|

Return to the OUT function group (Home position) with the E key

The device is still operative if message "W432" or "NOK" appears.
However, large deviations at the switch point may result. Recommendation:
Repeat 'Learn' process (points 1 to 4) until "OK" appears on the display.

Operation DTT31, DTT35

18 Endress+Hauser

5.1.4 Structure of the operating menu for 2 switch outputs

A0005784

Fig. 15: Operating menu: A function groups, B functions, C settings

DTT31, DTT35 Operation

Endress+Hauser 19

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

A0006819

Fig. 16: Operating menu: A function groups, B functions, C settings

Operation DTT31, DTT35

20 Endress+Hauser

5.1.6 Basic settings

5.1.7 Calibration

Function
group

Function Settings Description

BASE

Basic
settings

DISP Display PV

PVRO
TMP

TMPR
OFF

OFFR

PV: displays the current measured value
PVRO: displays the current measured value rotated
180°
TMP: displays the current medium temperature
TMPR: displays the current medium temperature
rotated 180°
OFF: display off
OFFR: display off, rotated 180°

Factory setting: current measured value (PV)

UNIT Technical

unit

×C
×F

Display medium temperature unit °C or °F
Factory setting: °C

Only visible if the current medium
temperature TMP is selected in the DISP
mode.

TAU Damping 0.0 Measured value damping with regard to display

value and output: 0 (no damping) or 9 to 40 s (in
increments of 1 second)
Factory setting: 0 s

DESI DESINA

Only for 2 x
PNP switch
outputs

NO
YES

Behavior as per DESINA: PIN assignment of the M12
connector is in accordance with the guidelines of
DESINA
(DESINA = DistributEd and Standardized
INstAllation technology for machine tools and
manufacturing systems)
Factory setting: NO

Function
group

Function Settings Description

CAL

Calibration

HIF Learn High

Flow

RUN
WAIT

RUN, WAIT: setting for the maximum flow rate
occurring. 100% value (→ Page 16)

LOWF Learn Low

Flow

RUN
WAIT

RUN, WAIT: setting for the minimum flow rate
occurring. 0% value (→ Page 16)

DTT31, DTT35 Operation

Endress+Hauser 21

5.1.8 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 the mass flow, the
hysteresis can be set via the switch
point SP and the switch-back point
RSP.

A0005280

Fig. 17: m Hysteresis function, n NO contact, o NC contact

SP switch point; RSP switch-back point

• NO contact or NC contact
This switch function is freely
selectable.

• Delay times for switch point SP and
switch-back point can be set in
increments of 1 s. By this means
undesirable temperature peaks of
short duration or of high frequency
can be filtered out.

Function
group

Function Settings Description

OUT

Output 1

OUT2

Output 2,
optional

MODE Switching

mode

FLOW
TEMP

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

UNIT Technical

unit

×C
×F

Temperature unit selection °C or °F

Function only visible if the switching mode
MODE is set to temperature TEMP in the
2nd output.

Factory setting: °C

Operation DTT31, DTT35

22 Endress+Hauser

OUT/
OUT2

continued

FUNC
FNC2

Switching
characteris
tics

HYNC
HYNO

HYNC: hysteresis/NC contact
HYNO: hysteresis/NO contact
(→ Fig. 17)
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

SPL
SP2L

Switch
point
’Learn’

RUN
WAIT

RUN, WAIT: take the current flow rate as the switch
point SP or SP2. See ’Navigating the Learn function’
(→ Fig. 13).

RSP
RSP2

Switchback
point value

0.0 • Enter value 0 to 95% in increments of 1%.

Factory setting: 40%

The value has to be at least 5% smaller
than the switch 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.
Factory setting: 50 °C

Value has to be at least 5 °C (9 °F) smaller
than switch point 2 (SP2).

TSP
TSP2

Switch
point delay

0.0 Can be set anywhere between 0 and 99 s in

increments of 1 second.
Factory setting: 0 s

TRSP
TRSP2

Switchback
point delay

0.0 Can be set anywhere between 0 and 99 s in

increments of 1 second.
Factory setting: 0 s

Function
group

Function Settings Description

DTT31, DTT35 Operation

Endress+Hauser 23

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

Function
group

Function Settings Description

4-20

Output 1

MODE Measurement

mode for
analog output

FLOW
TEMP

Output FLOW: flow rate or TEMP: temperature

For TEMP setting (temperature), the
measuring range is specified at -20 °C to
+85 °C (-4 °F to 185 °F).

Factory setting: FLOW

FCUR Error current MIN

MAX
HOLD

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

OUT

Output 2

MODE Switching

mode

FLOW
TEMP

Output switching mode FLOW: flow rate or TEMP:
temperature
Factory setting: temperature (TEMP)

UNIT Technical unit ×C

×F

Temperature unit selection °C or °F

Function only visible if the switching mode
MODE is set to temperature TEMP in the
2nd output.

Factory setting: °C

FUNC Switching

characteristics

HYNC
HYNO

HYNC: hysteresis/NC contact
HYNO: hysteresis/NO contact
(→ Fig. 17)
Factory setting: HYNO

SP Switch point

value

0.0 • Enter value 5 to 100% in increments of 1%.

Factory setting: 50%

or:

• 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 the
switch point SP. See ’Navigating the Learn function’
(→ Page 16).

Operation DTT31, DTT35

24 Endress+Hauser

OUT

continued

RSP Switchback

point value

0.0 • Enter value 0 to 95% in increments of 1%.

Factory setting: 40%

The value has to be at least 5% smaller
than the switch point SP.

or:

• 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.
Factory setting: 50 °C

Value has to be at least 5 °C (9 °F)
smaller than switch point SP2.

TSP Switch point

delay

0.0 Can be set anywhere between 0 and 99 s in

increments of 1 second.
Factory setting: 0 s

TRSP Switchback

point delay

0.0 Can be set anywhere between 0 and 99 s in

increments of 1 second.
Factory setting: 0 s

Function
group

Function Settings Description

DTT31, DTT35 Operation

Endress+Hauser 25

5.1.10 Setting for service functions

Function
group

Function Settings Description

SERV

Service
functions

LOCK Locking

code

0 Enter the device locking code.

CODE Change

locking
code

0 User-defined code 1 to 9999;

0 = no locking;
Only visible if the locking code is valid.

PRES Reset NO

YES

Reset all entries to factory settings.

REV'
C

Static
revision
counter

0 Configuration counter, incremented each time the

configuration is changed.

STAT Device

status

LST'D Last error 0 Display of last error to occur.

Switch output
version

SIM
SIM2

Simulation
for 2 x
switch
output

OFF
OPEN
CLOS

OFF: no simulation
OPEN: switch output open
CLOS: switch output closed

Analog output
version (4 to 20
mA)

SIM

SIMA

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

OFF
OPEN
CLOS

3.5
4
8

...

OFF: no simulation
OPEN: switch output open
CLOS: switch output closed

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)

Operation DTT31, DTT35

26 Endress+Hauser

5.2 Operation with PC and configuration software

A0008072

Fig. 18: Operation, visualization and maintenance with PC and configuration software.

Item 1: PC with ReadWin 2000 or Fieldcare configuration software
Item 2: Configuration kit TXU10-AA or FXA291 with USB port
Item 3: Flow switch

5.2.1 Additional operating options

In addition to the operating options listed in the previous "Onsite operation" section, the
ReadWin 2000 or FieldCare configuration software provides further information on the
Flowphant T:

Function group Function (display) Description

SERV (Service) Switching processes 1

Switching processes 2, optional

Number of changes in switching status for
switch output 1; optionally switch output 2

INFO
(device
information)

TAG 1
TAG 2

Tagging, 18-digit

Order code Order code

Device serial number -

Sensor serial number -

Electronics serial number -

Device revision Display of entire revision

Hardware revision -

Software revision -

DTT31, DTT35 Maintenance

Endress+Hauser 27

5.2.2 Hints for the configuration with ReadWin 2000

Comprehensive information on the ReadWin 2000 configuration software may be found in the
Operating Instructions BA137R/09/en.

5.2.3 Hints for the configuration with FieldCare

FieldCare is an universal configuration software based on FDT/DTM technology.

NOTICE

To configure the Flowphant T DTT31/35 with FieldCare the “PCP (ReadWin) Communication
DTM” and the Flowphant Device-DTM are required.
The device supports only offline configuration and up-/download of parameters. The online
configuration is not supported.

Detailed information concerning FieldCare may be found in the operation manual (BA027S/c4)
or see: www.endress.com.

6 Maintenance

Any buildup on the sensor can have a negative effect on the accuracy. For this reason, check the
sensor for buildup at regular intervals.

CAUTION

!

Make sure 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
for disassembly work (see also → Fig. 5) (→ Chap. 3.3.1).

Accessories DTT31, DTT35

28 Endress+Hauser

7 Accessories

All dimensions in the drawings are given in mm (in).

7.1 Welding bosses and coupling

7.1.1 Welding boss with sealing taper

7.1.2 Collar welding boss

7.1.3 Welding boss with sealing taper (metal - metal)

Collar welding boss moveable with sealing
taper and pressure screw;
material of parts in contact with the process:
316L, PEEK,
Max. process pressure 10 bar (145 psi)
Order number: 51004751

A0020709-EN

Material of parts in contact with process:
316L
Order no. 51004752

A0020710

Welding boss
Seal, metal-metal,
Material of parts in contact with process:
316L
Max. process pressure 16 bar (232 psi)
Order no. 60021387

A0006621

G½”

25 (0.98)

36 (1.42)

30 (1.18)

6 (0.24)

AF24

25 (0.98)

30 (1.18)

G½”

6 (0.24)

30 (1.18)

16 (0.63)

34 (1.34)

15 (0.6)

G½”

DTT31, DTT35 Accessories

Endress+Hauser 29

7.1.4 Coupling

7.2 Electrical connection

7.2.1 Coupling; connecting cable

Moveable coupling, G½" process connection,
material coupling and parts in contact with
process: 316L
Order no. 51004753

A0020174-EN

Coupling M12x1; straight
Connection to M12x1 housing connector
Order number: 52006263

P01-PMP13xxx-00-xx-00-x x-003

Coupling M12x1 for own assembly of the
connecting cable; elbowed
Connection to M12x1 housing connector
Degree of protection (connected):
IP67, PG7
Order number: 51006327

A0020722

G½”

45 (1.77 )

15 (0.59)

6 (0.24)

+1

+0.04

AF14

AF27

20

(0.79)

41

(1.61)

35 (1.38)

14.8

(0.58)

Accessories DTT31, DTT35

30 Endress+Hauser

7.3 Configuration kit

PVC cable, 4 x 0.34 mm2 (22 AWG) with
M12x1 coupling (assembled), 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

A0020723

PVC cable, 4 x 0.34 mm2 (22 AWG) with
M12x1 coupling, with LED, elbowed, 316L
screw plug, length 5 m (16.4 ft), especially
for hygiene applications,
degree of protection (connected): IP69K
order number: 52018763
Display:

− gn: device operational

− ye1: switch status 1

− ye2: switch status 2

Not suitable for 4 to 20 mA analog
output!

T09-TTR31xxx-00-00-xx-x x-001

• Configuration kit for PC-programmable
transmitters - ReadWin 2000 setup
program and interface cable (4 pin plug)
for PCs with USB port,
Order code: TXU10-AA

• Configuration kit "Commubox FXA291"
with interface cable for PCs with USB
port. Intrinsically safe CDI interface
(Endress+Hauser Common Data
Interface) for transmitters with 4-pole
post connector. Suitable device
configuration tool is e.g. FieldCare.
Order code: FXA291

A0008067

1

2 (WH) nc

2

1 (BN) +

4

3 (BU) -

3

4 (BK) nc

ye 1

ye 2 gn

DTT31, DTT35 Accessories

Endress+Hauser 31

7.4 Configuration software

The ReadWin 2000 and FieldCare 'Device Setup' configuration programs can be downloaded free
of charge from the Internet at the following address:

• www.endress.com/readwin

• www.products.endress.com/fieldcare

FieldCare 'Device Setup' can also be ordered from an Endress+Hauser sales office.

Troubleshooting DTT31, DTT35

32 Endress+Hauser

8 Troubleshooting

8.1 Error messages and warning messages

If an error occurs in the device, the color of the status LED changes from green to red and the
illumination of the digital display changes from white to red. A status LED flashing red and
green signals a warning. The display shows:

• E-code for errors
In the event of an error message, the measured value is uncertain.

• W-code for warnings
In the event of a warning, the measured value is reliable.

Code Explanation Remedy

E011 Device configuration faulty Reset device (→ Chap. 5.1.10)

E012 Error in measurement or medium temperature outside

measurable range

Check medium temperature, return device
to Endress+Hauser where necessary

E013 Sensor heating defective Return device to Endress+Hauser

E019 Power supply outside specification Check operating voltage

E015

Memory error Return device to Endress+HauserE020

E021

E022 Power is only supplied to the device via the

communication interface (measurement is deactivated)

Check operating voltage

E042 Output current can no longer be generated (only for 4

to 20 mA output, e.g. load at analog output too high or
open analog output)

Check load; switch off analog output

DTT31, DTT35 Troubleshooting

Endress+Hauser 33

8.2 Repair

A repair is not planned.

8.3 Disposal

Please pay particular attention to the local disposal regulations of your country. When
disposing, ensure that the materials of the device components are separated and processed
accordingly.

Code Explanation Remedy

W107 Simulation active

W200 Fluid temperature outside specification

(> 85 °C)

Check fluid temperature and, where
necessary, adapt it to the specification

W202 Measured flow rate outside the range between set Low

and High Flow
(< -10% or > 110%)

Set High and Low Flow again, reset device
to factory setting where necessary (PRES
function)

W209 Device starts

W210 Configuration changed (warning code displayed for

approx. 15 s)

W240 Flow velocity too high (> 3 m/s in water), the device is

operated outside its specified measuring range. The
measurement is uncertain.

Reduce flow velocity of the medium

W250 Number of max. switch cycles exceeded

W260 Values for High Flow (HIF) and Low Flow (LOWF) too

close

Set High and Low Flow again (greater
distance apart), reset device to factory
setting where 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 (→ Page 16). The
device can be operated however.

Set High and Low Flow again (keep flow
velocity constant!)

Troubleshooting DTT31, DTT35

34 Endress+Hauser

8.4 Change status (release)

The release number on the nameplate and in the Operating Instructions indicates the change
status of the device: XX.YY.ZZ (example 01.02.01).

8.5 Software history

XX Change in the main version.

Compatibility no longer provided. Device and Operating Instructions change.

YY Change in functionality and operation.

Compatibility provided. Operating Instructions change.

ZZ Troubleshooting and internal modifications.

Operating Instructions do not change.

Date Software version Software modifications Documentation

02.2006 01.00.00 Original
firmware

BA218r/09/en/02.06
(71022232)

12.2006 01.00.03 Analog output version
(4 to 20 mA) available

BA235r/09/en/12.06
(71036991)

12.2006 01.00.03 - BA235r/09/en/10.07

(71036991)

11.2008 01.00.04 Calibration function: Variable
configuration for HIF (70 to
100%) and LOWF (0 to 20%);
Warning message W200

BA235r/09/en/11.08
(71036991)

11.2008 01.00.04 - BA235r/09/en/06.09

(71098494)

11.2008 01.00.04 - BA235r/09/en/13.10

(71098494)

07.2013 01.00.08 - BA00235R/09/EN/14.13

(71226085)

01.2014 01.00.08 - BA00235R/09/EN/15.14

(71243850)

04.2014 01.00.08 - BA00235R/09/EN/16.14

(71252244)

DTT31, DTT35 Technical data

Endress+Hauser 35

9Technical data

9.1 Power supply

Supply voltage

• DC voltage version 18 to 30 V DC

Current consumption

• < 100 mA (open-circuit operation) at 24 V DC, max. 150 mA (open-circuit operation); with
reverse polarity protection

Power supply failure

• Behavior in case of over voltage (> 30 V)
The device works continuously up to 34 V DC without any damage. No damage is caused to
the device in case of a short-term over voltage up to 1 kV (as per EN 61000-4-5). If the supply
voltage is exceeded, the properties specified are no longer guaranteed.

• Behavior in case of under voltage
If the supply voltage drops below the minimum value, the device switches off (status as if not
supplied with power = switch open).

9.2 Output

Switching capacity

• Switch status ON: I

a

≤ 250 mA

• Switch status OFF: Ia ≤ 1 mA

• Switching cycles: > 10,000,000

• Voltage drop PNP: ≤ 2 V

• Overload protection
Automatic load testing of switching current; output is switched off in event of over current,
the switching current is tested again every 0.5 s; max. capacitance load: 14 μF for max. supply
voltage (without resistive load); periodical protective disconnection in event of over current
(f = 2 Hz) and 'Warning' display.

Analog output: Signal on alarm as per NAMUR NE43

• Under ranging:
Linear drop to 3.8 mA

• Over ranging:
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: with safe status (switch open)

Technical data DTT31, DTT35

36 Endress+Hauser

9.3 Operating conditions

• Orientation, → Chap. 3.4.1

• Top housing section can be rotated 310°

9.3.1 Operating conditions: Environment

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

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

•Climate class
4K4H as per DIN EN 60721-3-4

• Degree of protection
IP65 (optional IP66, depending on used connector)

• Shock resistance
50 g as per DIN IEC 68-2-27 (11 ms)

• Vibration resistance
20 g as per DIN IEC 68-2-6 (10-2000Hz)
4 g as per guidelines of German Lloyd GL

• Electromagnetic compatibility
Interference emission as per IEC 61326, class B equipment
Interference immunity as per IEC 61326, Appendix A (industry) and
NAMUR Recommendation NE21
EMC influence: ≤ 0.5%

9.3.2 Operating conditions: Process

• Process flow limits
Liquids: 0.03 to 3.0 m/s (0.1 to 9.84 ft/s)

• Process temperature limits

-20 to 85 °C (-4 to 185 °F)
The sensor can be exposed up to 130 °C (266 °F) without damage; monitoring switches off
automatically at T ≥ 85 °C (185 °F) and starts again at T ≤ 85 °C (185 °F).

• Process pressure limits
Maximum permitted process pressure p

max.

≤ 10 MPa = 100 bar (1450 psi)

NOTICE

The maximum process pressure for the conical metal-metal process connection (MB option)
for the DTT35 is 1.6 MPa = 16 bar (232 psi)!

DTT31, DTT35 Technical data

Endress+Hauser 37

Technical data DTT31, DTT35

38 Endress+Hauser

DTT31, DTT35 Technical data

Endress+Hauser 39

www.addresses.endress.com