Product Data Sheet: Rosemount Bearing Temperature Sensors (Type … Rosemount Docum… · Rosemount Bearing Temperature Sensors (Type WEX 926) 2 Rosemount Bearing Temperature Sensors

Product Data SheetAugust 2014

00813-0100-4926, Rev BA

Rosemount Bearing Temperature Sensors (Type WEX 926)

Non-intrusive measurement on bearing applications

Oil sealing for increased process safety

Thermal expansion compensation

Flexible installation with adjustable process connections

Rosemount Bearing Temperature Sensors August 2014

Success with Bearing Temperature Measurement

The Rosemount WEX926 Bearing Temperature Sensor offers a reliable solution for your Bearing temperature measurement needs. This high quality product delivers superior performance and can be used in a variety of bearing temperature applications.

OverviewThe Rosemount Bearing Thermocouple and RTD temperature sensor has been specifically designed for use in embedded bearings, critical to machine performance in industrial rotating equipment, for a reliable indication of bearing wear and oil film breakdown through continuous monitoring of temperature. The oil sealing feature allows for usage of this sensor in lubricated and harsh environments beneath the Babbitt layer of the bearing shoe. Rising temperatures indicate the breakdown of the lubricated oil film due to changes in the friction. A quick identification of early bearing failure warning is crucial for predicting machine shutdowns and maintenance to prevent serious damage to machinery.

Accurate and reliable measurementThe Rosemount Bearing Thermocouple and RTD temperature sensor ensures improved response time and constant contact of the sensing element with the bearing Babbitt layer by using a spring loaded design. The spring loaded design also compensates for thermal expansion of the bearing layer.

Process safetyTo allow a secure and safe temperature measurement in the harsh and oily bearing environment, the Rosemount Bearing Thermocouple and RTD temperature sensor offers oil sealing features and safety approvals. The specific design prevents oil leakage through the sensor itself as well as through the holding tube.

Complete assembliesEmerson makes it easy for you to order and install complete assemblies to accomplish your measurement needs. The Rosemount Bearing Temperature Assembly is available with an in-head HART® or FOUNDATION™ fieldbus transmitter (Rosemount 248 or Rosemount 644).

Temperature solutionsRosemount 644 Temperature TransmitterHead mount styles available with HART or FOUNDATION fieldbus protocol. Rail mount style available for HART protocol.

Rosemount 848T Temperature TransmitterEight input transmitter available with FOUNDATION fieldbus protocol.

Rosemount 848T Wireless Temperature TransmitterThe 848T Wireless temperature transmitter integrates four temperature measurements into a self-organizing network. It provides a reliable and cost effective solution for high density applications.

Rosemount 248 Temperature TransmitterHead mount (DIN B) and rail mount style with HART protocol and complete temperature assembly.

Rosemount 648 Wireless Temperature Transmitter

The Rosemount 648 integrates temperature measurement into a self-organizing wireless network, providing best in class security, reliability, SmartPower™ capabilities, and network scalability, optimizing plant performance while minimizingmaintenance.

Rosemount 3144P Temperature Transmitter

Field mount style HART or FOUNDATION fieldbus protocol. Dual sensor input with advanced diagnostics.

Contents

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Product Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Customer Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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Rosemount Bearing Temperature SensorsAugust 2014

Product Overview

Product introduction

The Rosemount WEX 926 Bearing Thermocouple and RTD sensor can be used in various different bearing applications. The oil sealing and spring loading makes this sensor a perfect solution for rough environments where the highest performance of the sensor is crucial.

Emerson uses highly linear RTD elements with a very stable resistance versus temperature relationship and are designed to meet the parameters of IEC 751 (DIN EN 60751), incorporating Amendments 1 and 2. Rosemount Bearing Thermocouples conform to IEC 584 (DIN EN 60584). Consult the factory and use the Customer Data Sheet (CDS) provided for Bearing Sensor models and Emerson will provide the sensor that will accommodate the process application.

Model code meaning

Table 1. Model Code Meaning

Code

Type name

WEX926

Process connection

G Thread

Protection tube

Y Metal protection tube

Lead wire termination

I Enclosure

Tube diameter

12 12 mm

Detailed description

RZ Cylindric tapered measuring tip

T Head mounted transmitter

VER Adjustable process connection

Additional options

Additional options are defined by quoting. Consult factory and use the Customer Data Sheet (CDS).

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Specifications

Material selectionEmerson provides a variety of Rosemount product with various product options and configurations including materials of construction that can be expected to perform well in a wide range of applications. The Rosemount product information presented is intended as a guide for the purchaser to make an appropriate selection for the application. It is the purchaser’s sole responsibility to make a careful analysis of all process parameters (such as all chemical components, temperature, pressure, flow rate, abrasives, contaminants, etc.), when specifying product, materials, options and components for the particular application. Emerson Process Management is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the product, options, configuration or materials of construction selected.

Table 2 provides a quick reference for the performance and physical aspects of the Rosemount Bearing Thermocouple and RTD temperature sensor assembly.

Table 2. Performance Specifications

Thermocouples RTD

Accuracy

Limits of Error Interchangeability acc. IEC 584 (DIN EN 60584) for thermocouple

In Accordance to IEC 751(DIN EN 60751)Class A: (0.15 + 0.0020 x t)Class B: (0.20 + 0.0050 x t)“t” is the temperature in °C

Class 1

Type E ±1.5 °C

Type J ±1.5 °C

Type K ±1.5 °C

Type N ±1.5 °C

Type T±0.5 °C 0 to 125 °C

±0.004 x t °C 125 to 180 °C

Class 2

Type E ±2.5 °C

Type J ±2.5 °C

Type K ±2.5 °C

Type N ±2.5 °C

Type T ±1.0 °C 0 to 133 °C

±0.0075 x t °C 133 to 180 °C

Ambient Temperature Limits

-50 to 60 °C (-58 to 140 °F)

Temperature Measuring Range

0 to 180 °C (32 to 356 °F)

Ratings max. IP65

Insulation resistance 1000 MΩ at room temperature, test voltage is 500 Vac

Connection CablePTFE, foil, wire mesh, PTFE insulated AWG24 stranded cable, Color coding. See Figure 1 on page 5 for wire configuration

PTFE, foil, wire mesh, PTFE insulated AWG24 nickel plated copper wire. See Figure 1 on page 5 for wire configuration

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Wiring diagrams

Figure 1. WEX926 Bearing Sensor RTD and Thermocouple Lead Wire Configuration

Lead wire configuration RTD

Single element 3-wire Single element 4-wire

Dual element 3-wire Dual element 4-wire

Lead wire configuration thermocouple

Single element Dual element

3 1

4 6

Brown1

White2Yellow4

3

4

1

6

YellowRed

Blue

Black 6

1

34

12

3

45

6

4

5

6

1

2

3 Yellow

White

Brown

Blue

Black

Red

123

4

56 7

8

White1

Brown2

Green3Yellow4

Grey5Rose6Blue7

Red8

31

1(+)

3(-)

1 3

46

4(+)

6(-)

1(+)

3(-)

Table 3. WEX926 Thermocouple Wire Colors

IEC wire color ISA wire color

TypePositive

(+)Negative

(-)Positive

(+)Negative

(-)

E Violet White Violet Red

J Black White White Red

K Green White Yellow Red

N Rose White Orange Red

T Brown White Blue Red

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Dimensional Drawings

Figure 2. Sensor Assembly Example

Figure 3. Connection head dimensional drawing

Nominal Length (NL)

40

12

With LCD display cover With standard cover

A. Head ConnectionB. LCD Display

104

78

128

B

A

104

100

78

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Product Certifications

ATEX Flameproof

Certificate Number KEMA 99ATEX8715 XATEX Marking II 2 G Ex d IIC T6

1180

Special Condition for Safe Use (X):

1. For information on the dimensions or the flameproof joints the manufacturer should be contacted.

Temperature codes

T6 (-50 < Tamb < 65 °C)

The ATEX Flameproof approval is dependent on the Rosemount Integral Sensor Connection Head assembled with an RTD or thermocouple temperature sensor drawing, see Figure 3. The captive flame arrestor insert must be fully engaged into the connection head for compliance with this approval.

IECEx Intrinsically Safety

Certificate number IECEX IBE 09.0015XMarking: Ex ia IIC T6

Special Conditions for Safe Use (X):

1. The installation and the operation of the temperature sensors have to be carried out according to the requirements of the operating instructions

2. The maximum permissible temperatures of the medium are dependent on the electric output of the supply in case of failure.

3. With maintenance of the collar tube distances have to be guaranteed the maximum permissible ambient temperatures.

Electrical and thermal data

Ambient temperature (at connector) -40 °C to +60 °C-51 °C to +60 °C (optional)Measuring temperature (point of the sensor) -50 °C to +450 °C (peak 550 °C)Maximum input voltage Ui < 30 Voptional Ui < 60 V (exclusively for the mineralized resistance thermometer series 0065 in design with one measuring circuit and an outer diameter of 6 mm)Maximum input power Pi < 750 mWMaximum internal capacitance max. 160 pF/mMaximum internal inductance max. 10 ì H + 1 ì H/m

IECEx Increased Safety

Certificate number IECEx IBE 09.0013XMarking: Ex e II T6

Special Conditions for Safe Use (X):

1. For the assembly and the operation of temperature sensor the requirements of the operating instruction have to be observed.

2. The application of the temperature sensor requires a protection tube.

3. The electrical connection has to be in an enclosure which is certified in a standardized type of protection.


Temperature measuring range 0 °C to +180 °CAmbient temperature at the connection head -40 °C to +60 °CInput voltage max. 30 V DCMeasuring current 1x respectively 2x ≤ 1 mAFault current max. 100 mA (limited by a fuse)Power ≤10 mWMeasuring elements Resistance thermometer Pt100 acc. IEC 60751 class A or B in 3- respectively 4-conductor circuit or alternatively Thermo couples type K, J or T acc. to IEC 60584-1 class 1 or 2.

IECEx Flameproof

Certificate number IECEx KEM 09.0015X

Special Condition for Safe Use (X):

1. For information on the dimensions of the flameproof joints the manufacturer shall be contacted.

Table 4. Entity parameters

Sensor Transmitter

Umax = 5 V Umax = 55 Vdc

Imax = 2.0 mA Imax = 40 mA

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Electrical apparatus for potentially explosive gas atmospheres: -40 to +65 °CElectrical apparatus for use in the presence of combustible dust: -40 to +85 °CPRTE and TC sensor: Maximum input voltage: 5 V, Maximum input current: 2,0 mA Temperature transmitter: Maximum input voltage: 55 Vdc, Maximum input current: 40 mA

Material overview

Process and connection head connections

Figure 4. Compression Fitting G1/2

Figure 5. Compression Fitting 1/2 NPT

Figure 6. Screw Bushing

Table 5. Component Material Overview

Part Material

Spring ASTM301/1.4310

Mounting tube ASTM316Ti/1.4571

Compression fitting ASTM316Ti/1.4571

Screw bushing ASTM303/1.4305

G 1 /2

SW 2

4

15

55

SW 2

7

1 /2 N

PT

SW24

20

65

M24

x 1

.5

SW24

20

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Customer Data Sheet

BOLD = Required Value Select only one of the items provided★= Default One or more of the listed items can be selected

Customer informationCustomer: ________________________________________________________ Name: ___________________________________________

Phone No:_________________________________________________________Fax No./Email: ______________________________________________________

P.O./Reference No.: _________________________________________________P.O. Line Item: ______________________________________________________

Quote No._________________________________________________________Model No.:_______________________________________________

Customer Signoff: _____________________________________________________________________________________________________________________

Bearing sensor information

Device Tag Name: __________________________________________________________

Process information

Temperature Range: __________________________________________

Process Pressure: __________________________________________

Process Medium: __________________________________________

Application: __________________________________________

Sensor base model WEX926-GYI 12

Hazardous Location Certifications:

Ex d ATEX Flameproof Approval GOST (not yet available)

KOSHA IECEx i

IECEx e IECEx d

NONE

Sensor Type: (select only one)

Thermocouple Type J RTD, single element 4-wire

Thermocouple Type K RTD, single element 3-wire

Thermocouple Type T RTD, dual element 3-wire

Thermocouple Type E RTD, dual element 4-wire

Thermocouple Type N

Other: ___________________

Thermocouple Wire Code (select only if sensor type thermocouple is required)

Wire Color per IEC 60584-2

Wire Color per ISA MC96.1

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Sensor Class/Configuration: (select only one)

Class 1 (TC only) Class B (RTD only)

Class 2 (TC only) Class A (RTD only)

Connection head Material and Form (select only one)

Rosemount aluminum Rosemount aluminum with LCD display cover

Rosemount stainless steel Rosemount stainless steel with LCD display cover

Connection Head Conduit/Cable Entry (select only one)

M20 x 1,5

1/2-in. NPT


Head Connection (select only one)

M24x1,5 G1/2

1/2-in. NPT

Process Connection: (select only one)

1/2-in. NPT

G1/2

Nominal Length:

NL: ______________________ mm


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Rosemount Bearing Temperature Sensors00813-0100-4926 Rev BA

Product Data SheetAugust 2014

Emerson Process ManagementRosemount Inc.8200 Market BoulevardChanhassen, MN 55317 USAT (U.S.) 1-800-999-9307T (International) (952) 906-8888F (952) 906 8889www.rosemount.com

Emerson Process Management Blegistrasse 23P.O. Box 1046CH 6341 BaarSwitzerlandTel +41 (0) 41 768 6111Fax +41 (0) 41 768 6300

Emerson FZEP.O. Box 17033Jebel Ali Free ZoneDubai UAETel +971 4 811 8100Fax +971 4 886 5465

Emerson Process Management Asia Pacific Pte Ltd1 Pandan CrescentSingapore 128461Tel +65 6777 8211Fax +65 6777 0947Service Support Hotline : +65 6770 8711Email: [email protected]

Emerson Process Management Latin America1300 Concord Terrace, Suite 400Sunrise, Florida 33323 USATel + 1 954 846 5030

Standard Terms and Conditions of Sale can be found at www.rosemount.com\terms_of_saleThe Emerson logo is a trade mark and service mark of Emerson Electric Co.SmartPower, Rosemount, and the Rosemount logotype are registered trademarks of Rosemount Inc.FOUNDATION fieldbus is a trademark of the Fieldbus Foundation.HART and WirelessHART are registered trademarks of the HART Communication Foundation.All other marks are the property of their respective owners.© 2014 Rosemount Inc. All rights reserved.

00813-0100-4926, Rev BA, 08/14

Product Data Sheet: Rosemount Bearing Temperature Sensors (Type … Rosemount Docum… · Rosemount Bearing Temperature Sensors (Type WEX 926) 2 Rosemount Bearing Temperature Sensors

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