KA01443D/06/EN/02.21
71528706
2021-07-01

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Brief Operating Instructions
Proline t-mass I
Thermal mass flow sensor

These instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Brief Operating Instructions part 1 of 2: Sensor
Contain information about the sensor.
Brief Operating Instructions part 2 of 2: Transmitter→  3.

Proline t-mass I

1.

Order code: XXXXX-XXXXXX
Ser. no.:XXXXXXXXXXXX
Ext. ord. cd.: XXX.XXXX.XX

Serial number

2. www.endress.com/deviceviewer

Endress+Hauser
Operations App

3.

A0023555

2

Endress+Hauser

Proline t-mass I

Brief Operating Instructions for flowmeter

Brief Operating Instructions for flowmeter
The device consists of a transmitter and a sensor.
The process of commissioning these two components is described in two separate manuals
that together form the Brief Operating Instructions for the flowmeter:• Brief Operating Instructions Part 1: Sensor• Brief Operating Instructions Part 2: Transmitter
Please refer to both parts of the Brief Operating Instructions when commissioning the device,as the contents of the manuals complement one another:
Brief Operating Instructions Part 1: Sensor
The Sensor Brief Operating Instructions are aimed at specialists with responsibility for
installing the measuring device.
• Incoming acceptance and product identification• Storage and transport• Installation
Brief Operating Instructions Part 2: Transmitter
The Transmitter Brief Operating Instructions are aimed at specialists with responsibility forcommissioning, configuring and parameterizing the measuring device (until the firstmeasured value).
• Product description• Installation• Electrical connection• Operation options• System integration• Commissioning• Diagnostic information

Additional device documentation
These Brief Operating Instructions are the Brief Operating Instructionspart 1: Sensor.
The "Brief Operating Instructions part 2: Transmitter" are available via:
• Internet: www.endress.com/deviceviewer• Smart phone/tablet: Endress+Hauser Operations App
Detailed information about the device can be found in the Operating Instructions and theother documentation:• Internet: www.endress.com/deviceviewer• Smart phone/tablet: Endress+Hauser Operations App

Endress+Hauser

3

Table of contents

Proline t-mass I

Table of contents
1

1.1

2

2.1
2.2
2.3
2.4
2.5
2.6

3

About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Basic safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Requirements for the personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Occupational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IT security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Incoming acceptance and product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1
3.2

Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4Storage and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1
4.2

Storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Transporting the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.1
5.2
5.3

Mounting conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Post-installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6

Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4Endress+Hauser

6.1
6.2

Removing the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Disposing of the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Proline t-mass I

About this document

1

About this document

1.1

Symbols used

1.1.1

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.
1.1.2

Symbols for certain types of information

SymbolMeaning

SymbolPermitted
Procedures, processes or actions thatare permitted.

Preferred
Procedures, processes or actions thatare preferred.

Forbidden
Procedures, processes or actions thatare forbidden.

Tip
Indicates additional information.

Reference to documentation
Reference to graphicA

1. , 2. , 3. …

Result of a step

1.1.3

Meaning

Reference to page
Series of steps
Visual inspection

Electrical symbols

SymbolEndress+Hauser

Meaning

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 a grounding system.

5

About this document

SymbolProline t-mass I

Meaning
Protective Earth (PE)A terminal which must be connected to ground prior to establishing any other connections.
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.

1.1.4

Communication symbols

Symbol1.1.5

Meaning

SymbolMeaning

Wireless Local Area Network(WLAN)
Communication via a wireless, local
network.

BluetoothWireless data transmission between
devices over a short distance.

Promag 800
Cellular radio
Bidirectional data exchange via cellular
network.

LED
Light emitting diode is off.

LED
Light emitting diode is on.

LED
Light emitting diode is flashing.

Tool symbols

SymbolMeaning

SymbolMeaning

Torx screwdriver

Flat blade screwdriver

Cross-head screwdriver

Allen key

Open-ended wrench

1.1.6

Symbols in graphics

SymbolMeaning

SymbolMeaning

1, 2, 3,...

Item numbers

1. , 2. , 3. …

Series of steps

A, B, C, ...

Views

-

Hazardous area

A-A, B-B, C-C, ...

.

Sections
Safe area (non-hazardous area)

Flow direction

6

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Proline t-mass I

2

Basic safety instructions

2.1

Requirements for the personnel

Basic safety instructions

The personnel must fulfill the following requirements for its tasks:‣ 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.

2.2

Designated use

Application and media
The measuring device described in this manual is intended only for the flow measurement ofgases.
Depending on the version ordered, the measuring device can also measure potentiallyexplosive, flammable, poisonous and oxidizing media.
Measuring devices for use in hazardous areas or where there is an increased risk due toprocess pressure, are labeled accordingly on the nameplate.
To ensure that the measuring device remains in proper condition for the operation time:‣ Keep within the specified pressure and temperature range.
‣ Only use the measuring device in full compliance with the data on the nameplate and thegeneral conditions listed in the Operating Instructions and supplementary documentation.

‣ Based on the nameplate, check whether the ordered device is permitted for the intended
use in the hazardous area (e.g. explosion protection, pressure vessel safety).

‣ Use the measuring device only for media to which the process-wetted materials are
sufficiently resistant.

‣ If the ambient temperature of the measuring device is outside the atmospherictemperature, it is absolutely essential to comply with the relevant basic conditions as
specified in the device documentation.
‣ Protect the measuring device permanently against corrosion from environmental
influences.

Incorrect use
Non-designated use can compromise safety. The manufacturer is not liable for damage caused
by improper or non-designated use.

LWARNING
Danger of breakage due to corrosive or abrasive fluids and ambient conditions!
‣ Verify the compatibility of the process fluid with the sensor material.
‣ Ensure the resistance of all fluid-wetted materials in the process.
‣ Keep within the specified pressure and temperature range.

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7Basic safety instructions

Proline t-mass I

NOTICE
Verification for borderline cases:‣ For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance inverifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability as minute changes in the temperature, concentration or level ofcontamination in the process can alter the corrosion resistance properties.

LWARNING
Injury from sensor being ejected!
‣ The sensor gland should be opened only when in an unpressurized state.
NOTICE
Penetration of dust and moisture when the transmitter housing is opened.
‣ Only open the transmitter housing briefly, ensuring that no dust or moisture enters the
housing.
Residual risks

LWARNING
If the temperature of the media or electronics unit is high or low, this may cause thesurfaces of the device to become hot or cold. This poses a risk of burns or frostbite!
‣ In the case of hot or cold medium temperatures, install appropriate protection against
contact.

2.3

Occupational safety

When working on and with the device:‣ Wear the required personal protective equipment as per 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, wear suitable gloves.

2.4

Operational safety

Risk of injury!
‣ Operate the device in proper technical condition and fail-safe condition only.
‣ The operator is responsible for interference-free operation of the device.

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. Endress+Hauser confirms
this by affixing the CE mark to the device.
8

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Proline t-mass I

2.6

Incoming acceptance and product identification

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
Are the order codes on
the delivery note (1)and the product sticker(2) identical?

1
2

1
2

Are the goods
undamaged?

Endress+Hauser

9Incoming acceptance and product identification

Proline t-mass I

Do the nameplate data
match the ordering
information on thedelivery note?

Order code:
Ser. no.:Ext. ord. cd.:

i

i

Date:

Is the envelope present
with accompanying
documents?

• If one of the conditions is not satisfied, contact your Endress+Hauser Sales Center.
• The Technical Documentation is available via the Internet or via the Endress+Hauser
Operations App.

3.2

Product identification

The following options are available for identification of the device:• Nameplate specifications• Order code with breakdown of the device features on the delivery note
• Enter serial numbers from nameplates in the W@M Device Viewer(www.endress.com/deviceviewer): All information about the device is displayed.
• Enter the serial number from nameplates in the Endress+Hauser Operations App or scan the
2-D matrix code (QR code) on the nameplate using the Endress+Hauser Operations App: Allinformation about the device is displayed.

Order code:
Ser. no.:Ext. ord. cd.:1
2

Order code:
Ser. no.:Ext. ord. cd.:

43A0030196

1

Example of a nameplate

1
2
3
4

Order code
Serial number (Ser. no.)Extended order code (Ext. ord. cd.)
2-D matrix code (QR code)

For detailed information on the breakdown of the specifications on the nameplate, see
the Operating Instructions for the device .

10

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Proline t-mass I

Storage and transport

4

Storage and transport

4.1

Storage conditions

Observe the following notes for storage:‣ Store in the original packaging to ensure protection from shock.
‣ Protect from direct sunlight to avoid unacceptably high surface temperatures.
‣ Select a storage location where moisture cannot collect in the measuring device as fungus
and bacteria infestation can damage the liner.
‣ Store in a dry and dust-free place.
‣ Do not store outdoors.

4.2

Transporting the productTransport the measuring device to the measuring point in the original packaging.
Do not remove protection caps. They prevent mechanical damage.

5

Installation

5.1

Mounting conditions

No special measures such as supports are necessary. External forces are absorbed by theconstruction of the device.
5.1.1

Mounting position

Orientation
The direction of flow must match the direction of the arrow on the sensor. In the case of thebidirectional sensor, the arrow points in the positive direction. When performing bidirectional
measurement, the sensing element must be installed with an accuracy of 3°.
Orientation

Recommendation

1)

Vertical orientation

A0015591

Horizontal orientation,transmitter head up
A0015589

Endress+Hauser

11

Installation

Proline t-mass I

Orientation

Recommendation

Horizontal orientation,transmitter head down

2)

A0015590

Horizontal orientation,transmitter head at side

A0015592

αInclined orientation,transmitter head down

2)

A0015773

1)
2)

In the case of saturated or impure gases, vertical orientation is preferred in order to minimize condensation orcontamination. For bidirectional sensors, select horizontal orientation.
Select inclined orientation (α = approx. 135°) for very wet or water-saturated gas (e.g. digester gas, undriedcompressed air), or if deposits or condensate are constantly present.

Pipes
The measuring device must be professionally installed, and the following points must be
observed:• Weld pipes professionally.
• Use seals of the correct size.
• Align flanges and seals correctly.
• Remove protection cap from sensing element.
• Following installation, the pipe must be free from dirt and particles in order to avoid
damage to the sensors.
• For further information → ISO standard 14511.
Insertion depth
The minimum length of the insertion version can be determined using the Endress+Hauser
Applicator program or with the calculation formula below. The calculated necessary insertion
depth must be within the adjusting range of the selected insertion version.
NOTICE
Metal ferrules undergo plastic deformation during the initial installation.
As a result the insertion depth is fixed after initial installation and the ferrules can no longer
be replaced.
‣ Pay attention to information on preconditions and on determining the insertion depth.
‣ Check the insertion depth closely before tightening the ferrules.

12

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Proline t-mass I

Installation

9

230

230

9

220

220

230
220

210
8

210

210

200
190

8

180

8

200
190

200

180
7

C1 C2

7

190
180

A

A

B

B

7

C1 C2

9

A0039548

2
A
B
C1
C2

Determine the dimensions A, B, C1 and C2
In the case of a circular pipe: the pipe internal diameter (DN); in the case of a duct: the innerdimension
Thickness of pipe wall or of duct wall
Mounting kit
Sensor's compression fitting

Calculating the insertion depth
Insertion depth = (0.3⋅ A) + B + (C1 + C2)
The insertion depth must be at least 100mm.
Determining dimensions C1 and C2
If only Endress+Hauser mounting bosses are used
Mounting boss 1" NPT

C1 + C2 = 112 mm (4.409 in)Mounting boss G1"

C1 + C2 = 106 mm (4.173 in)Mounting boss ¾" NPT

C1 + C2 = 108 mm (4.252 in)Mounting boss G¾"

C1 + C2 = 105 mm (4.134 in)

If a cold/hot tap is used, use dimension "L" instead of "C1".
Use Applicator to determine dimensions C1 and C2 if using other E+H mounting kits
(e.g. cold/hot taps).

Endress+Hauser

13Installation

Proline t-mass I

If not exclusively using Endress+Hauser mounting bosses
C1

Length of pipe connection used

C2 (compression fitting with
1" NPT thread)

52 mm (2.047 in)C2 (compression fitting with
G1" thread)

46 mm (1.811 in)C2 (compression fitting with¾" NPT thread)

48 mm (1.889 in)C2 (compression fitting with
G¾" thread)

45 mm (1.772 in)Selecting the length of the insertion version
Select the length of the insertion version using the calculated insertion depth and thefollowing table. The insertion depth must be within the adjusting range of the insertion
version.
Length of insertion tube
[mm]

Adjusting range (insertion depth)

[in]

[mm]

[in]

235

9

100 to 235

3.9 to 9.3

335

13

100 to 335

3.9 to 13.2

435

17

100 to 435

3.9 to 17.1

608

24

100 to 608

3.9 to 23.9

Inlet and outlet runs
A fully developed flow profile is a requirement for optimal thermal flow measurement.
To achieve the best possible measuring performance, observe the following inlet and outlet
runs at the very minimum.
• In the case of bidirectional sensors, also observe the recommended inlet run in the opposite
direction.
• If several flow disturbances are present, use flow conditioners.
• Use flow conditioners if it is not possible to observe the required inlet runs.
• In the case of control valves, the amount of disturbance depends on the valve type andopening degree. The recommended inlet run for control valves is 50 × DN.
• In the case of very light gases (helium, hydrogen), the recommended inlet run must be
doubled.

14

Endress+Hauser

Proline t-mass I

20 × DN

Installation

2 × DN

30 × DN

2 × DN

A0040193

3

Reduction

20 × DN

A0040192

4

2 × DN

Expansion

25 × DN

2 × DN

A0039441
A0039440590° elbow

50 × DN

6

2 × 90° elbow

35 × DN

2 × DN

2 × DN

A0039445

7

Control valve

Endress+Hauser

A0039442

8

2 × 90 ° elbow, 3-dimensional

15

Installation

Proline t-mass I

%

7
6
5
A

4

1

3
2
2

3

1
4

0
5

10

15

20

25

30

35

40

DN

B
A0045846

9
A
B
1
2
3
4

The additional measured error to be expected without flow conditioners depending on the
disturbance type and inlet run
Additional measured error (%)
Inlet run (DN)
2 × 90 ° elbow, 3-dimensional
Expansion
2 × 90° elbow
Reduction or 90° elbow

Flow conditioner
Use flow conditioners if it is not possible to observe the required inlet runs. Flow conditioners
improve the flow profile and therefore reduce the necessary inlet runs.
Mount the flow conditioner in flow direction in front of the measuring device.
Available in the following flange standards:• ASME B16.5 Cl. 150/Cl. 300• EN 1092-1 PN10/PN16/PN25/PN40• JIS B2220 10K/20K
Available in the following line sizes:• DN 80 (3")• DN 100 (4")• DN 150 (6")

16Endress+Hauser

Proline t-mass I

Installation• DN 200 (8")• DN 250 (10")• DN 300 (12")

212A0039538

1
2

Flow conditioner
Seal

5 × DN

10 × DN

5 × DN

1
A0039424 10
1

Recommended inlet and outlet runs when using a flow conditioner

Flow conditioner

In the case of bidirectional sensors, also observe the inlet run in the opposite direction.

Endress+Hauser

17Installation

Proline t-mass I

%

5
4
3

A

1
2

2
3
1
4
0
0

2

6

4

8

10

DN

B
A0039508

 11
A
B
1
2
3
4

The additional measured error to be expected with flow conditioners depending on the disturbancetype and inlet run

Additional measured error (%)
Inlet runs upstream of the flow conditioner (DN)
2 × 90 ° elbow, 3-dimensional
Expansion
2 × 90° elbow
Reduction or 90° elbow

The pressure loss for flow conditioners is calculated as follows: ∆ p [mbar] = 0.0085 ⋅ ρ[kg/m3] ⋅ v2 [m/s]
Example of air
p = 10 bar abs.
t = 25 °C → ρ = 11.71 kg/m3
v = 10 m/s∆ p = 0.0085 ⋅ 11.71 ⋅ 10 2 = 9.95 mbar

ρ : density of the process medium
v: average flow velocity
abs. = absolute

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Proline t-mass I

Installation

Outlet runs with pressure measuring points
Install the pressure measuring point downstream of the measuring system. This prevents thepressure transmitter from potentially affecting the flow in the measuring point.
2 ... 5 x DN
P

A0039447 12Installation of a pressure measuring point (P = pressure transmitter)

Installation conditions for nipples

Di

Suitable support brackets must be used if installing in rectangular air ducts (or pipes withthin walls).

D

90° (± 3°)

90° (± 3°)

A0040684

DDi

Ø 31.0 ± 0.5 mm (1.22 ± 0.019 in)Ø 23.0 ± 0.5 mm (0.91 ± 0.019 in)

5.1.2

Environment and process requirements

Ambient temperature range
For detailed information on the ambient temperature range, see the Operating
Instructions for the device.
If operating outdoors:• Install the measuring device in a shady location.
• Avoid direct sunlight, particularly in warm climatic regions.
• Avoid direct exposure to weather conditions.

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19Installation

Proline t-mass I

Temperature tables
For detailed information on the temperature tables, see the separate document entitled"Safety Instructions" (XA) for the device.
System pressure
Pressure-reducing valves and some compressor systems can generate significant processpressure variations that can distort the flow profile. This can produce an additional measured
error. Suitable measures must be taken to reduce these pressure pulses, such as:• The use of expansion tanks• The use of inlet diffusers• Positioning the measuring device further downstream
To avoid pulsating flow and contamination from oil/dirt in compressed air applications, it isrecommended to install the measuring device downstream of filter, drying and storage
devices. Do not install the measuring device directly after the compressor.
Thermal insulation
In the case of some fluids, it is important to keep the heat radiated from the sensor to thetransmitter to a low level. A wide range of materials can be used for the required insulation.
If the gas is very wet or saturated with water (e.g. digester gas), the pipe and the sensor
housing should be insulated, and heated where necessary, to prevent water droplets
condensing on the sensing element.
NOTICE
Electronics overheating on account of thermal insulation!
‣ Recommended orientation: horizontal orientation, transmitter housing sensor connection
housing pointing downwards.
‣ Do not insulate the transmitter housing sensor connection housing.
‣ Maximum permissible temperature at the lower end of the transmitter housing sensor
connection housing: 80 °C (176 °F)‣ Thermal insulation with not isolated extended neck: We recommend that you do not
insulate the extended neck in order to ensure optimum dissipation of heat.

A0039420

 13

20

Thermal insulation with not isolated extended neck

Endress+Hauser

Proline t-mass I

Installation

Heating
NOTICE
Electronics can overheat due to elevated ambient temperature!
‣ Observe maximum permitted ambient temperature for the transmitter.
‣ Depending on the medium temperature, take the device orientation requirements into
account.
NOTICE
Electronics overheating on account of thermal insulation!
‣ Recommended orientation: horizontal orientation, transmitter housing sensor connection
housing pointing downwards.
‣ Do not insulate the transmitter housing sensor connection housing.
‣ Maximum permissible temperature at the lower end of the transmitter housing sensor
connection housing: 80 °C (176 °F)‣ Thermal insulation with extended neck free: We recommend that you do not insulate theextended neck in order to ensure optimum dissipation of heat.
NOTICE
Danger of overheating when heating‣ Ensure that the temperature at the lower end of the transmitter housing does not exceed
80 °C (176 °F).
‣ Ensure that sufficient convection takes place at the transmitter neck.
‣ When using in potentially explosive atmospheres, observe the information in the devicespecific Ex documentation. For detailed information on the temperature tables, see theseparate document entitled "Safety Instructions" (XA) for the device.
‣ Ensure that a sufficiently large area of the transmitter neck remains exposed. The
uncovered part serves as a radiator and protects the electronics from overheating andexcessive cooling.
Heating options
If a fluid requires that no heat loss should occur at the sensor, users can avail of the following
heating options:• Electrical heating, e.g. with electric band heaters• Via pipes carrying hot water or steam
5.1.3

Special mounting instructions

Zero point adjustment
All measuring devices are calibrated in accordance with state-of-the-art technology.
Calibration takes place under reference conditions . Therefore, a zero point adjustment in thefield is generally not required.
Experience shows that zero point adjustment is advisable only in special cases:• If strict measuring accuracy requirements apply.
• Under extreme process or operating conditions (e.g. very high process temperatures or lightgases (helium, hydrogen)).

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Installation

Proline t-mass I

Weather protection cover
280 (11.0)
134 (5.3)

12 (0.47)

30 (1.18)

48 (1.9)

146 (5.75)

255 (10.0)

A0029553

 14

Engineering unit mm (in)203 (8.0)

243 (9.6)

213 (8.4)

39 (1.5)

Weather protection coverA0029552

 15

Weather protection cover for Proline 500 – digital; engineering unit mm (in)5.2

Mounting the measuring device

5.2.1

Required tool

For sensor
Sensor's compression fitting: appropriate mounting tool.

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Proline t-mass I

5.2.2

Preparing the measuring device

1.

Remove all remaining transport packaging.

2.

Remove any protective covers or protective caps present from the sensor.

3.

Remove stick-on label on the electronics compartment cover.

5.2.3

Installation

Mounting the sensor

LWARNING
Danger due to improper process sealing!
‣ Ensure that the seals are clean and undamaged.
‣ Ensure that the correct sealing material is used (e.g. Teflon tape for NPT compression
fitting).
‣ Secure the seals correctly.
Install the measuring device or turn the transmitter housing so that the cable entries do not
point upwards.

A0029263

1.

Weld in the mounting boss in accordance with the requirements.

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Installation

2.

Proline t-mass I

Loosen the union nut (1) and push down the compression fitting (2).


1.
3 mm
3.

2.

36 mm
A0041022

1.
3 mm
3.

2.

36 mm
A0041023

3.

NOTICE
Damage to the sensing element!
‣ Make sure the sensing elements do not hit against anything.
Using a wrench (27 mm / 35 mm / 41 mm), tighten the bottom nut of the compression
fitting to the end stop.


27 mm / 35 mm / 41 mm
A0036810

4.

Now read off the previously calculated insertion depth from the scale and insert thesensor until this value is at the same height as the upper end of the compression fitting.

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Proline t-mass I

5.

Installation

Tighten the union nut by hand. It should still be possible to move the sensor slightly.
A0041024

A0041025

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Installation

6.

Proline t-mass I

Align the sensor with the flow direction.
 Pay attention to the direction of the arrow on the neck section of the sensor for theflow direction.
The maximum permitted deviation from the flow direction is 3°.

90°(±3°)90°(±3°)!3(1. 1,022 ±0,±0 5.01
9)90°(±3°)

A0039511

 16

Engineering unit: mm (in)90°(±3°)90°(±3°)!3(1. 1,022 ±0,±0 5.01
9)90°(±3°)

A0039512

 17

7.

26

Engineering unit: mm (in)Depending on the process connection:
Tighten union nut with x turns:
 For PEEK ferrules continue with Step 8.
For metal ferrules continue with Step 9.
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Proline t-mass I

Installation

8.

For PEEK ferrules:
Mounting for the first time: tighten union nut with 1¼ turns. Repeat mounting: tighten
union nut with 1 turn.
 Tip If strong vibrations can be expected, tighten the union nut with 1½ turns when
mounting for the first time.

9.

For metal ferrules:
Mounting for the first time: tighten union nut with 1¼ turns. Repeat mounting: tighten
union nut with ¼ turn.

10. Tighten both securing screws again with a 3 mm (¹⁄₈ in) Allen screw with
4 Nm (2.95 lbf ft).
 It is now no longer possible to move the sensor.
11. Check the measuring point for leaks (max. process pressure).
5.2.4

Mounting the transmitter housing: Proline 500 – digital

LCAUTION
Ambient temperature too high!
Danger of electronics overheating and housing deformation.
‣ Do not exceed the permitted maximum ambient temperature .
‣ If operating outdoors: Avoid direct sunlight and exposure to weathering, particularly inwarm climatic regions.

LCAUTION
Excessive force can damage the housing!
‣ Avoid excessive mechanical stress.
The transmitter can be mounted in the following ways:• Post mounting• Wall mounting
Post mounting

LWARNING
Excessive tightening torque applied to the fixing screws!
Risk of damaging the plastic transmitter.
‣ Tighten the fixing screws as per the tightening torque: 2 Nm (1.5 lbf ft)

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Installation

Proline t-mass I

ø 20…70(ø 0.79…2.75)

4x

3x

TX 25

SW 10

~1

0

~
2(

)
4.0

A0029051

 18

28

Engineering unit mm (in)Endress+Hauser

Proline t-mass I

Installation

Wall mounting
17 (0.67)==

L

211 (8.31)

5.8 (0.23)

5.8 (0.23)
149 (5.85)
A0029054

 19
LEngineering unit mm (in)Depends on order code for "Transmitter housing"Order code for "Transmitter housing"• Option A, aluminum coated: L =14 mm (0.55 in)• Option D, polycarbonate: L = 13 mm (0.51 in)

5.3

Post-installation check

Is the device undamaged (visual inspection)?



Does the measuring device conform to the measuring point specifications?
For example:• Process temperature (refer to the "Process" section of the "Technical Information" document)• Process pressure (refer to the "Pressure-temperature ratings" section of the "Technical Information"
document)• Ambient temperature• Measuring range (refer to the "Input" section of the "Technical Information" document on the CDROM provided)

Has the correct orientation been selected for the sensor →  11?
• According to sensor type
• According to medium properties• According to medium temperature• According to process pressure
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Proline t-mass I

Does the arrow on the sensor match the actual direction of flow of the medium through the piping ?

Have sufficient inlet and outlet runs been provided upstream and downstream of the measuring point→  14?

Correct sensor insertion depth?

Is the device adequately protected from precipitation and direct sunlight?

Is the device protected against overheating?

Is the device protected against excessive vibrations?



Gas property checked (e.g. purity, dryness, cleanness)?



Are the measuring point identification and labeling correct (visual inspection)?



Are the securing screw and securing clamp tightened securely?



6

Disposal

If required by the Directive 2012/19/EU on waste electrical and electronic equipment(WEEE), the product is marked with the depicted symbol in order to minimize the disposalof WEEE as unsorted municipal waste. Do not dispose of products bearing this marking as
unsorted municipal waste. Instead, return them to Endress+Hauser for disposal under theapplicable conditions.

6.1
1.

Removing the measuring device
Switch off the device.

LWARNING
Danger to persons from process conditions!
‣ Beware of hazardous process conditions such as pressure in the measuring device, hightemperatures or aggressive fluids.
2.

6.2

Carry out the mounting and connection steps from the "Mounting the measuring device"and "Connecting the measuring device" sections in reverse order. Observe the safety
instructions.

Disposing of the measuring device

LWARNING
Danger to personnel and environment from fluids that are hazardous to health.
‣ Ensure that the measuring device and all cavities are free of fluid residues that arehazardous to health or the environment, e.g. substances that have permeated into crevices
or diffused through plastic.
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Proline t-mass I

DisposalObserve the following notes during disposal:‣ Observe valid federal/national regulations.
‣ Ensure proper separation and reuse of the device components.

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*71528706*
71528706

www.addresses.endress.com