Emerson Rosemount 848T Quick Start Manual

Quick Start Guide

00825-0100-4697, Rev TC

May 2019

Rosemount™ 848T FOUNDATION™ Fieldbus
High Density Temperature Transmitter

Device Revision 8 - Requires New DD/CFF
Revision

Quick Start Guide May 2019

Contents

About this guide...........................................................................................................................3

Mount the transmitter..................................................................................................................5

Wire and apply power...................................................................................................................9

Verify the tag............................................................................................................................. 16

Verify the transmitter configuration...........................................................................................17

Product certifications................................................................................................................. 18

Declaration of conformity.......................................................................................................... 32

China RoHS................................................................................................................................ 34

2 Rosemount 848T

May 2019 Quick Start Guide

1 About this guide

This guide provides basic guidelines for the Rosemount™ 848T Temperature
Transmitter. It does not provide instructions for detailed configuration,
diagnostics, maintenance, service, troubleshooting. Refer to the Rosemount
848T Reference Manual for more instruction. The manual and this guide are
also available electronically on Emerson.com/Rosemount

WARNING

Explosions could result in death or serious injury.

Installation of this transmitter in an explosive environment must be in
accordance with the appropriate local, national, and international standards,
codes, and practices. Review the approvals section of this manual for any
restrictions associated with a safe installation.

• Before connecting a Field Communicator in an explosive atmosphere,

make sure the instruments in the loop are installed in accordance with
intrinsically safe or non-incendive field wiring practices.

Electrical shock can result in death or serious injury.

• Avoid contact with the leads and terminals. High voltage that may be

present on leads can cause electrical shock.

Physical access

• Unauthorized personnel may potentially cause significant damage to

and/or misconfiguration of end users’ equipment. This could be
intentional or unintentional and needs to be protected against.

• Physical security is an important part of any security program and

fundamental to protecting your system. Restrict physical access by
unauthorized personnel to protect end users’ assets. This is true for all
systems used within the facility.

CAUTION

This device complies with Part 15 of the FCC Rules. Operation is subject
to the following conditions:

• This device may not cause harmful interference.

• This device must accept any interference received, including

interference that may cause undesired operation.

• This device must be installed to ensure a minimum antenna separation

distance of 20 cm from all persons.

Quick Start Guide 3

Quick Start Guide May 2019

NOTICE

Battery hazards remain when cells are discharged.

The power module may be replaced in a hazardous area. The power module
has surface resistivity greater than one gigaohm and must be properly
installed in the wireless device enclosure. Care must be taken during
transportation to and from the point of installation to prevent electrostatic
charge build-up.

Shipping considerations for wireless products.

• The unit was shipped to you without the power module installed.

Remove the power module prior to shipping.

• Each power module contains two “C” size primary lithium batteries.

Primary lithium batteries are regulated in transportation by the U. S.
Department of Transportation, and are also covered by IATA
(International Air Transport Association), ICAO (International Civil
Aviation Organization), and ARD (European Ground Transportation of
Dangerous Goods). It is the responsibility of the shipper to ensure
compliance with these or any other local requirements. Consult current
regulations and requirements before shipping.

4 Rosemount 848T

A

B

C

May 2019 Quick Start Guide

2 Mount the transmitter

2.1 Mount to a DIN rail without a junction box

Procedure

1. Pull up the DIN rail mounting clip located on the top back side of the
transmitter.

2. Hinge the DIN rail into the slots on the bottom of the transmitter.

3. Tilt the Rosemount™ 848T and place onto the DIN rail.

4. Release the mounting clip.

Figure 2-1: Mounting the Rosemount 848T to a DIN Rail

A. Rosemount 848T without installed enclosure
B. DIN rail
C. DIN rail mounting clip

Quick Start Guide 5

A

B

C

A

B

C

Quick Start Guide May 2019

2.2 Mount to a panel with a junction box

Figure 2-2: Aluminum/Plastic Junction Box

A. Aluminum or plastic junction box
B. Mounting screws (4)
C. Panel

Figure 2-3: Stainless Steel Junction Box

A. Stainless steel junction box
B. Mounting screws (2)
C. Panel

(1)

(1)

(1) Mount using four ¼–20 x 1.25-in. screws.

6 Rosemount 848T

5.1

(130)

10.2

(260)

6.6

(167)

4.7 (114)

7.5 (190)

May 2019 Quick Start Guide

2.3 Mount to a 2-in. pipe stand

Prerequisites

Use the optional mounting bracket (option code B6) to attach the
Rosemount™ 848T to a 2-in. pipe stand when using a junction box.

Figure 2-4: Aluminum/Plastic Junction Box

Front view Side view

Figure 2-5: Stainless Steel Junction Box

Front view

Quick Start Guide 7

Side view

Quick Start Guide May 2019

Figure 2-6: Mounted on a Vertical Pipe

Aluminum/plastic junction box Stainless steel junction box

8 Rosemount 848T

A

C

E

G

I

J

B

D

F

H

May 2019 Quick Start Guide

3 Wire and apply power

3.1 Using cable glands

Figure 3-1: Cable Gland

A. Sensor 1
B. Sensor 2
C. Sensor 3

D. Sensor 4

E. Sensor 5

F. Sensor 6
G. Sensor 7
H. Sensor 8

I. Power/signal
J. Cover screw

Procedure

1. Remove the four cover screws to remove the junction box cover.

2. Run the sensor and power/signal wires through the appropriate pre­installed cable glands.

3. Install the sensor wires into the correct screw terminals.

4. Attach the FOUNDATION™ Fieldbus wires to the screw terminals.

5. Replace the FOUNDATION Fieldbus cover and tighten all cover screws.

Quick Start Guide 9

F

A

B

C

D

E

Quick Start Guide May 2019

3.2 Using conduit entries

Figure 3-2: Conduit Entries

A. Sensor 1 and 2
B. Sensor 3 and 4
C. Sensor 5 and 6

D. Sensor 7 and 8

E. Power/signal
F. Cover screw

Procedure

1. Unscrew the four cover screws to remove the junction box cover.

2. Remove the five conduit plugs and install the user-supplied conduit
fittings.

3. Run pairs of sensor wires through each conduit fitting.

4. Install the sensor wires into the correct screw terminals.

5. Attach the FOUNDATION™ Fieldbus wires to the screw terminals.

6. Replace the enclosure cover and tighten all cover screws.

3.3

Sensor wiring and power supply

• Compatible with eight independently configurable channels including

combinations of 2- and 3-wire RTDs, thermocouples, mV, ohm, and mA
sensors.

• All sensor and power terminals are rated to 42.4 Vdc.

• FOUNDATION Fieldbus network powered with a terminal voltage of 9.0–

32.0 Vdc and 22 mA maximum current draw.

• For best network performance twisted, shielded pair cabling should be

used. Proper gage wire should be selected to maintain the 9.0 Vdc
minimum.

10 Rosemount 848T

1 1 1 12 2 2 23 3 3 3

May 2019 Quick Start Guide

Figure 3-3: Sensor Wiring Diagrams

2-wire RTD and

Ohms

(1) Emerson provides 4-wire sensors for all single-element RTDs. Use these RTDs in

3-wire configurations by clipping the fourth lead or leaving it disconnected and
insulated with electrical tape.

(2) The transmitter must be configured for a 3-wire RTD in order to recognize an

RTD with a compensation loop.

3-wire RTD and

Ohms

(1)

Thermocouples/

Ohms and

millivolts

2-Wire RTD with

compensation

(2)

loop

The wiring of 3-wire RTDs for this unit is different than some earlier
Rosemount™ 848T models. Pay careful attention to the wiring diagram on
the label, especially if this unit is replacing an older unit.

Quick Start Guide 11

A

C

B

Quick Start Guide May 2019

3.4 Wiring analog inputs

Figure 3-4: Rosemount™ 848T Analog Input Wiring Diagram

A. Analog input connectors
B. Analog transmitters
C. Power supply

3.5

12 Rosemount 848T

Typical configuration for FOUNDATION Fieldbus networking

Note

Each segment in a FOUNDATION™ Fieldbus trunk must be terminated at both
ends.

A

B C

D

E E

F

May 2019 Quick Start Guide

A. 6234 ft. (1900 m) max (depending upon cable characteristics)
B. Integrated power conditioner and filter
C. Terminators

D. Trunk

E. Sput
F. Signal wiring

3.5.1 Ground the transmitter

Proper ground is crucial to reliable temperature readings.

3.5.2 Ungrounded thermocouple, mV, and RTD/Ohm inputs Option 1

Procedure

1. Connect FOUNDATION™ Fieldbus signal wiring shield to the sensor
wiring shield(s).

2. Ensure the shields are tied together and electrically isolated from the
transmitter enclosure.

3. Only ground the shield at the power supply end.

4. Ensure that the sensor shield(s) is electrically isolated from the
surrounding grounded fixtures.

Quick Start Guide 13

A

B

C

D

A

B

C

D

Quick Start Guide May 2019

A. Sensor wires
B. Rosemount™ 848T
C. Power supply

D. Shield ground point

Option 2

Procedure

1. Connect sensor wiring shield(s) to the transmitter enclosure (only if
the enclosure is grounded).

2. Ensure the sensor shield(s) is electrically isolated from surrounding
fixtures that may be grounded.

3. Ground FOUNDATION™ Fieldbus signal wiring shield at the power
supply end.

A. Sensor wires
B. Rosemount™ 848T
C. Power supply

D. Shield ground point

3.5.3 Grounded thermocouple inputs

Procedure

1. Ground sensor wiring shield(s) at the sensor.

2. Ensure the sensor wiring and FOUNDATION™ Fieldbus signal wiring
shields are electrically isolated from the transmitter enclosure.

3. Do not connect the FOUNDATION Fieldbus signal wiring shield to the
sensor wiring shield(s).

14 Rosemount 848T

A

B

C

D

A

C D

F

G

B

E

May 2019 Quick Start Guide

4. Ground FOUNDATION Fieldbus signal wiring shield at the power supply
end.

A. Sensor wires
B. Rosemount™ 848T
C. Power supply

D. Shield ground point

3.6 Analog device inputs

Procedure

1. Ground analog signal wire at the power supply of the analog devices.

2. Ensure the analog signal wire and the FOUNDATION™ Fieldbus signal
wire shields are electrically isolated from the transmitter enclosure.

3. Do not connect the analog signal wire shield to the FOUNDATION
Fieldbus signal wire shield.

A. Analog device power supply
B. 4–20 mA loop
C. Analog device

D. Rosemount™ 848T

E. FOUNDATION Fieldbus
F. Power supply

G. Shield ground points

3.6.1 Transmitter enclosure (optional)

Ground in accordance with local electrical requirements.

Quick Start Guide 15

Quick Start Guide May 2019

4 Verify the tag

The Rosemount 848T has a removable commissioning
tag that contains both the Device ID (the unique code
that identifies a particular device in the absence of a
device tag) and a space to record the device tag (the
operational identification for the device as defined by
the Piping and Instrumentation Diagram [P&ID]).

When commissioning more than one device on a
FOUNDATION™ Fieldbus segment, it can be difficult to
identify which device is at a particular location. The
removable tag aids in this process by linking the
Device ID to physical location. The installer should
note the physical location of the transmitter on both
the upper and lower location of the commissioning
tag. The bottom portion should be torn off for each
device on the segment and used for commissioning
the segment in the control system.

16 Rosemount 848T

May 2019 Quick Start Guide

5 Verify the transmitter configuration

Each FOUNDATION™ Fieldbus host or configuration tool has a different way of
displaying and performing configurations. Some use Device Descriptions
(DD) or DD wizards for configuration and to display data consistently across
platforms. There is no requirement that a host or configuration tool support
these features.

The following is the minimum configuration requirement for a temperature
measurement. This guide is designed for systems not using DD wizards. For
a complete list of parameters and configuration information refer to the
Rosemount™ 848T Reference Manual.

Quick Start Guide 17

Quick Start Guide May 2019

6 Product certifications

Rev 2.12

European Directive Information

A copy of the EU Declaration of Conformity can be found at the end of the
Quick Start Guide. The most recent revision of the EU Declaration of
Conformity can be found at Emerson.com/Rosemount.

Ordinary Location Certification from FM Approvals

As standard, the transmitter has been examined and tested to determine
that the design meets the basic electrical, mechanical, and fire protection
requirements by FM Approvals, a nationally recognized test laboratory
(NRTL) as accredited by the Federal Occupational Safety and Health
Administration (OSHA).

North America

The US National Electrical Code™ (NEC) and the Canadian Electrical Code
(CEC) permit the use of Division marked equipment in Zones and Zone
marked equipment in Divisions. The markings must be suitable for the area
classification, gas, and temperature class. This information is clearly defined
in the respective codes.

6.1 U.S.A

6.1.1 I5 FM Intrinsically Safe and Nonincendive

Certificate

Standards

Markings

Note

Transmitters marked with Nonincendive CL I, DV 2 can be installed in
Division 2 locations using general Division 2 wiring methods or
Nonincendive Field Wiring (NIFW). See Drawing 00848-4404.

6.1.2 IE FM FISCO

Certificate

18 Rosemount 848T

3011568

FM Class 3600:1998, FM Class 3610:2010, FM Class
3611:2004, FM Class 3810:2005, ANSI/ISA 60079-0:2009,
ANSI/ISA 60079-11:2009, NEMA 250:1991, IEC 60529:2011

IS CL I, DIV 1, GP A, B, C, D; T4(–50 °C ≤ Ta ≤ +60 °C); NI CL I,
DIV 2, GP A, B, C, D; T4A(–50 °C ≤ Ta ≤ +85 °C); T5(–50 °C ≤ T
≤ +70 °C) when installed per Rosemount™ drawing
00848-4404.

3011568

a

May 2019 Quick Start Guide

Standards

FM Class 3600:1998, FM Class 3610:2010, FM Class
3611:2004, FM Class 3810:2005, ANSI/ISA 60079-0:2009,
ANSI/ISA 60079-11:2009, NEMA 250:1991, IEC 60529:2011

Markings

IS CL I, DIV 1, GP A, B, C, D; T4(–50 °C ≤ Ta ≤ +60 °C); NI CL I,
DIV 2, GP A, B, C, D; T4A(–50 °C ≤ Ta ≤ +85 °C); T5(–50 °C ≤ T
≤ +70 °C) when installed per Rosemount™ drawing
00848-4404.

6.1.3 N5 Nonincendive and Dust-Ignitionproof

Certificate

Standards

Markings

3011568

FM Class 3600:1998, FM Class 3611:2004, FM Class
3810:2005, ANSI/ISA 60079-0:2009, NEMA 250:1991, IEC
60529:2011

NI CL I, DIV 2, GP A, B, C, D; DIP CL II/III, DIV 1, GP E, F, G; T4A(–
50 °C ≤ Ta ≤ +85 °C); T5(–50 °C ≤ Ta ≤ +70 °C) when installed
per Rosemount™ drawing 00848-4404; Type 4X

6.1.4 NK Nonincendive

Certificate

Standards

Markings

3011568

FM Class 3600:1998, FM Class 3611:2004, FM Class
3810:2005, ANSI/ISA 60079-0:2009, NEMA 250:1991, IEC
60529:2001

NI CL I, DIV 2, GP A, B, C, D; T4A(–50 °C ≤ Ta ≤ +85 °C); T5(–50
°C ≤ Ta ≤ +70 °C) when installed per Rosemount™ drawing
00848-4404

a

Note

Only the N5 and NK are valid with the S002 option.

Table 6-1: MAI Block Parameters

Fieldbus (input) FISCO (input) Nonincendive

V

= 30 V V

MAX

I

= 300 mA I

MAX

Pi = 1.3 W Pi = 5.32 W Li = 0 PO = 15 mW

Ci = 2.1 nF Ci = 2.1 nF N/A CA = 1.2 μF

Li = 0 Li = 0 N/A LA = 1 H

Quick Start Guide 19

= 17.5 V

MAX

= 380 mA Ci = 2.1 nF ISC = 4.8 mA

MAX

(input)

= 42.4 VOC = 12.5 V

MAX

Sensor field
terminal (output)

Quick Start Guide May 2019

6.2 Canada

6.2.1 E6 CSA Explosionproof, Dust-Ignitionproof, Division 2 (JX3 Enclosure Required)

Certificate

Standards

Markings

1261865

CAN/CSA C22.2 No. 0-M91 (R2001), CSA Std. C22.2 No.

25.1966, CSA Std. C22.2 No. 30-M1986, CAN/CSA C22.2 No.
94-M91, CSA Std. C22.2 No. 142-M1987, CSA Std. C22.2 No.
213-M1987, CSA Std. C22.2 No. 60529:05

Explosionproof for Class I, Division 1, Groups B, C, and D; T4(–
40 °C ≤ Ta ≤ +40 °C) when installed per Rosemount drawing
00848-1041; Dust-Ignitionproof for Class II, Division 1, Groups
E, F, and G; Class III; Class I, Division 2, Groups A, B, C, and D;
T3C(–50 °C ≤ Ta ≤ +60 °C) when installed per Rosemount
drawing 00848-4405; Conduit Seal Required

6.2.2 I6 CSA Intrinsically Safe and Division 2

Certificate

Standards

Markings

1261865

CAN/CSA C22.2 No. 0-M91 (R2001), CAN/CSA C22.2 No. 94­M91, CSA Std. C22.2 No. 142-M1987, CSA Std. C22.2 No.
157-92, CSA Std. C22.2 No. 213-M1987, CSA Std. C22.2 No.
60529:05

Intrinsically Safe for Class I, Division 1, Groups A, B, C, and D;
T3C(–50 °C ≤ Ta ≤ +60 °C) when installed per Rosemount
drawing 00848-4405; Class I, Division 2, Groups A, B, C, D;
T3C(–50 °C ≤ Ta ≤ +60 °C) when installed per Rosemount
drawing 00848-4405

6.2.3 IF CSA FISCO

Certificate

Standards

Markings

20 Rosemount 848T

1261865

CAN/CSA C22.2 No. 0-M91 (R2001), CAN/CSA C22.2 No. 94­M91, CSA Std. C22.2 No. 142-M1987, CSA Std. C22.2 No.
157-92, CSA Std. C22.2 No. 213-M1987, CSA Std. C22.2 No.
60529:05

Intrinsically Safe for Class I, Division 1, Groups A, B, C, and D;
T3C(–50 °C ≤ Ta ≤ +60 °C) when installed per Rosemount
drawing 00848-4405; Class I, Division 2, Groups A, B, C, D;
T3C(–50 °C ≤ Ta ≤ +60 °C) when installed per Rosemount
drawing 00848-4405

May 2019 Quick Start Guide

6.2.4 N6 CSA Division 2 and Dust-Ignitionproof (enclosure required)

Certificate

Standards

1261865

CAN/CSA C22.2 No. 0-M91 (R2001), CSA Std. C22.2 No. 30­M1986, CAN/CSA C22.2 No. 94-M91, CSA Std. C22.2 No. 142­M1987, CSA Std. C22.2 No. 213-M1987, CSA Std. C22.2 No.
60529:05

Markings

Class I, Division 2, Groups A, B, C, and D; T3C(–50 °C ≤ Ta ≤ +60
°C) when installed per Rosemount drawing 00848-4405; Dust­Ignitionproof for Class II, Division 1, Groups E, F, and G; Class
III; Conduit Seal Required

6.3 Europe

6.3.1 I1 ATEX Intrinsic Safety

Certificate

Standards

Markings

Special Conditions for Safe Use (X):

1. The equipment must be installed in an enclosure that provides a

Baseefa09ATEX0093X

EN 60079-0:2012, EN60079-11:2012

II 1 G Ex ia IIC T4 Ga (–50 °C ≤ Ta ≤ +60 °C) when installed

per drawing 00848-4406

degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards and light alloy or
zirconium enclosures must be protected from impact and friction
when installed.

2. The equipment is not capable of withstanding the 500 V insulation
test required by EN 60079-11:2011, clause 6.3.13. This must be
taken into account when installing the equipment.

Fieldbus (input)

Ui = 30 V UO = 12.5 V

Ii = 300 mA IO = 4.8 mA

Pi = 1.3 W PO = 15 mW

Ci = 2.1 nF CO = 1.2 μF

Li = 0 LO = 1 H

Quick Start Guide 21

Sensor field terminal (output)

Quick Start Guide May 2019

6.3.2 IA ATEX FISCO Intrinsic Safety

Certificate

Standards

Markings

Baseefa09ATEX0093X

EN 60079-0:2012, EN60079-11:2012

II 1 G Ex ia IIC T4 Ga (–50 °C ≤ Ta ≤ +60 °C) when installed

per drawing 00848-4406

Special Conditions for Safe Use (X):

1. The equipment must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards and light alloy or
zirconium enclosures must be protected from impact and friction
when installed.

2. The equipment is not capable of withstanding the 500 V insulation
test required by EN 60079-11:2011, clause 6.3.13. This must be
taken into account when installing the equipment.

FISCO (input) Sensor field terminal (output)

Ui = 17.5 V UO = 12.5 V

Ii = 380 mA IO = 4.8 mA

Pi = 5.32 W PO = 15 mW

Ci = 2.1 nF CO = 1.2 μF

Li = 0 LO = 1 H

6.4 International

6.4.1 I7 IECEx Intrinsic Safety

Certificate

Standards

Markings

Special Conditions for Safe Use (X):

1. The apparatus must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards and light alloy or
zirconium enclosures must be protected from impact and friction
when installed.

22 Rosemount 848T

IECEx BAS 09.0030X

IEC 60079-0:2011, IEC60079-11:2011

Ex ia IIC T4 Ga (–50 °C ≤ Ta ≤ +60 °C)

May 2019 Quick Start Guide

2. The apparatus is not capable of withstanding the 500 V insulation
test required by IEC 60079-11:2011, clause 6.3.13. This must be
taken into account when installing the appartus.

6.4.2 IG IECEx FISCO Intrinsic Safety

Certificate

Standards

Markings

IECEx BAS 09.0030X

IEC 60079-0:2011, IEC60079-11:2011

Ex ia IIC T4 Ga (-50 °C ≤ Ta ≤ +60 °C)

Special Conditions for Safe Use (X):

1. The equipment must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards and light alloy or
zirconium enclosures must be protected from impact and friction
when installed.

2. The equipment is not capable of withstanding the 500 V insulation
test required by EN 60079-11:2012, clause 6.3.13. This must be
taken into account when installing the equipment.

FISCO (input) Sensor field terminal (output)

Ui = 17.5 V UO = 12.5 V

Ii = 380 mA IO = 4.8 mA

Pi = 5.32 W PO = 15 mW

Ci = 2.1 nF CO = 1.2 μF

Li = 0 LO = 1 H

6.4.3 N7 IECEx Type n (with enclosure)

Certificate:

Standards:

Markings:

IECEx BAS 09.0032X

IEC 60079-0:2004, IEC 60079-15:2005

Ex nA nL IIC T5(–40 °C ≤ Ta ≤ +65 °C)

Special Conditions for Safe Use (X):

1. Provision must be made, external to the apparatus, to ensure the
rated voltage of the apparatus supply is not exceeded by transient
disturbances of more than 40%.

2. The electrical circuit is connected directly to earth; this must be
taken into account when installing the apparatus.

Quick Start Guide 23

Quick Start Guide May 2019

6.4.4 NJ IECEx Type n (without enclosure)

Certificate:

Standards:

Markings:

IECEx BAS 09.0031U

IEC 60079-0:2004, IEC 60079-15:2005

Ex nA nL IIC T4 (–50 °C ≤ Ta ≤ +85 °C), T5(–50 °C ≤ Ta ≤ +70 °C)

Schedule of Limitations (U):

1. The component must be installed in a suitable component certified
enclosure that provides a degree of protection of at least IP54 and
meets the relevant material and environmental requirements of IEC
60079-0: 2004 and IEC 60079-15: 2005.

2. Provision must be made, external to the component, to ensure the
rated voltage of the component supply is not exceeded by transient
disturbances of more than 40%.

3. The electrical circuit is connected directly to earth; this must be
taken into account when installing the apparatus.

6.5 Brazil

6.5.1 I2 INMETRO Intrinsic Safety

Certificate

Standards

Markings

UL-BR 16.0086X

ABNT NBR IEC 60079-0:2008 + Errata 1:2011 ABNT NBR IEC
60079-11:2009

Ex ia IIC T4(–50 °C ≤ Ta ≤ +60 °C)

Special Conditions for Safe Use (X):

1. The apparatus must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards (see manufacturer's
instructions manual) and light alloy or zirconium enclosures must be
protected from impact and friction when installed.

2. The apparatus is not capable of withstanding the 500 V isolation test
required by ABNT NBR IEC 60079-11. This must be taken into
account when installing the apparatus --- see manufacturer's
instructions manual.

Fieldbus (input)

Ui = 30 V UO = 12.5 V

Ii = 300 mA IO = 4.8 mA

Pi = 1.3 W PO = 15 mW

24 Rosemount 848T

Sensor field terminal (output)

May 2019 Quick Start Guide

Fieldbus (input) Sensor field terminal (output)

Ci = 2.1 nF CO = 1.2 μF

Li = 0 LO = 1 H

6.5.2 IB INMETRO Intrinsic Safety

Certificate

Standards

UL-BR 16.0086X

ABNT NBR IEC 60079-0:2008 + Errata 1:2011, ABNT NBR IEC
60079-11:2009

Markings

Ex ia IIC T4(–50 °C ≤ Ta ≤ +60 °C)

Special Conditions for Safe Use (X):

1. The apparatus must be installed in an enclosure that provides a
degree of protection of at least IP20. Non-metallic enclosures must
be suitable to prevent electrostatic hazards (see manufacturer's
instructions manual) and light alloy or zirconium enclosures must be
protected from impact and friction when installed.

2. The apparatus is not capable of withstanding the 500 V isolation test
required by ABNT NBR IEC 60079-11. This must be taken into
account when installing the apparatus --- see manufacturer's
instruction manual.

FISCO (input)

Ui = 17.5 V UO = 12.5 V

Ii = 380 mA IO = 4.8 mA

Pi = 5.32 W PO = 15 mW

Ci = 2.1 nF CO = 1.2 μF

Li = 0 LO = 1 H

Sensor field terminal (output)

6.6 China

6.6.1 I3 NEPSI Intrinsic Safety

Certificate

Standards

Markings

Quick Start Guide 25

GYJ16.1205X

GB3836.1-2010, GB3836.4-2010, GB3836.20-2010

Ex ia IIC T4/T5 Ga

Quick Start Guide May 2019

产品安全使用特殊条件：

产品防爆合格证后缀“X”代表产品安全使用有特殊条件：

输出为 FOUNDATION Fieldbus 时：

1. 温度变送器须安装于外壳防护等级不低于国家标准 GB4208-2008 规
定的 IP20 的壳体中，方可用于爆炸性危险场所，金属壳体须符合国
家标准 GB3836.1-2010 第 8 条的规定，非金属壳体须符合

GB3836.1-2010 第 7.4 条的规定。

2. 此设备不能承受 GB3836.4-2010 标准中第 6.3.12 条规定的 500V 交

流有效值试验电压的介电强度试验。

输出为 Wireless 时：

1. 天线的表面电阻大于 1 GΩ，不允许用溶剂清洗或用干布擦拭，以避
免电荷积聚。

2. 电源模块表面电阻大于 1 GΩ，必须置于无线设备外壳内使用，现场
安装及运输过程中避免电荷积聚。

3. 产品需使用厂家提供的由 2 块 Tadiran TL-5920 Lithium Thionyl­Chloride 原电池组成的电池组。

产品使用注意事项：

1. 产品环境温度为:

输出代码 温度组别 环境温度

F T4 50 ℃ ≤ Ta ≤＋ 60 ℃

W T4 -60 ℃ ≤ Ta ≤＋ 70 ℃

T5 -60 ℃ ≤ Ta ≤ ＋ 40 ℃

2. 参数：

供电端（1-2）

输出代码

F 30 300 1.3 2.1 0

F (FISCO) 17.5 380 5.32 2.1 0

最高输 入电压最大输 入电流最大输 入功率最大内部等效参数

Ui (V) Ii (mA) Pi (mW) Ci (μF) Li (H)

注 1：上表中非 FISCO 参数必须来自于使用电阻限流的线性输出。
注 2：本安电气参数符合 GB3836.19-2010 对 FISCO 现场仪表的参

数要求。当其连接符合 FISCO 模型的电路板时，其本安参数及内部
最大等效参数见上表。

传感器端：

26 Rosemount 848T

May 2019 Quick Start Guide

输出代码端子 最高输

F 1-8 12.5 4.8 15 1.2 1

F (FISCO) 1-20 6.6 3.2 5.3 22 1

3. 输出代码为 F 时，该产品必须与已通过防爆认证的关联设备配套共

同组成本安防爆系统方可使用于爆炸性气体环境。其系统接线必须
同时遵守本产品和所配关联设备的使用说明书要求，接线端子不得
接错。

4. 该产品于关联设备的连接电缆应为带绝缘护套的屏蔽电缆，其屏蔽
层应为安全接地。

5. 用户不得自行更换该产品的零部件，应会同产品制造商共同解决运
行中出现的故障，以杜绝损坏现象的发生。 产品的安装、使用和维
护应同时遵守产品使用说明书、GB3836.13-2013“爆炸性环境 第 13
部分：设备的修理、检修、修复和改造”、GB3836.15-2000“爆炸性
气体环境用电气设备 第 15 部分：危险场所电气安装（煤矿除
外）”、GB3836.16-2006“爆炸性气体环境用电气设备 第 16 部分：
电气装置的检查和维护（煤矿除外）”、GB3836.18-2010“爆炸性环
境 第 18 部分：本质安全系统”和 GB50257-2014“电气装置安装工程
爆炸和火灾危险环境电力装置施工及验收规范”的有关规定。

6.6.2 N3 NEPSI Type n

出电压

Uo (V) Io (mA) Po (mW) Co (μH) Lo (H)

最大输
出电流

最大输
出功率

最大外部等效参数

Certificate

Standards

Markings

GYJ17.1008U

GB3836.1-2010, GB3836.8-2014

Ex nA nL IIC T4/T5 Gc

产品安全使用特殊条件：

1. 设备不能承受 GB3836.8-2014 标准中第 6.5.1 条规定的 500V 耐压
试验，安装时必须考虑在内。

2. 此设备必须安装于具有不低于 IP54 外壳防护等级的 Ex 元件外壳，
外壳应符合 GB3836.1-2010 和 GB3836.8-2014 标准中对外壳材料
和环境的相关要求。

3. 在此设备外部应采取措施以防额定电压因瞬态干扰而超过 40%。

产品使用注意事项：

1. 产品使用环境温度范围：

Quick Start Guide 27

Quick Start Guide May 2019

温度组别 环境温度

T4 –50 °C ≤ Ta ≤ +85 °C

T5 –50 °C ≤ Ta ≤ +70 °C

2. 最高工作电压：42.4V。

3. 用户不得自行更换该产品的零部件，应会同产品制造商共同解决运

行中出现的故障，以杜绝损坏现象的发生。

4. 产品的安装、使用和维护应同时遵守产品使用说明书、
GB3836.13-2013“爆炸性环境 第 13 部分：设备的修理、检修、修

复和改造”、GB3836.15-2000“爆炸性气体环境用电气设备 第 15 部
分：危险场所电气安装（煤矿除外）”、GB3836.16-2006“爆炸性气
体环境用电气设备 第 16 部分：电气装置的检查和维护（煤矿除
外）” 、B50257-2014“电气装置安装工程爆炸和火灾危险环境电力
装置施工及验收规范”的有关规定。

6.7 Japan

6.7.1 I4 TIIS FISCO Intrinsic Safety (ia)

Certificate

Markings

6.7.2 TIIS Wi-HART Intrinsic Safety (ia)

Certificate

Markings

6.7.3 H4 TIIS FISCO Intrinsic Safety (ib)

Certificate

Markings

6.8 Korea

6.8.1 IP Korea Intrinsic Safety

Certificate

Markings

10-KB4BO-0088X

Ex ia IIC T4 (–50 °C ≤ Ta ≤ +60 °C)

TC19713

ia IIC T4

TC19154

ia IIC T4

TC20737

ia IIC T4

28 Rosemount 848T

May 2019 Quick Start Guide

6.9 EAC - Belarus, Kazakhstan, Russia

6.9.1 IM Technical Regulation Customs Union (EAC) Intrinsic Safety

Markings

Special Condition for Safe Use (X):

See certificate for special conditions.

[FOUNDATION Fieldbus]: 0Ex ia IIC T4 Ga X, T4(–50 °C ≤ Ta ≤ +60
°C)

See certificate for entity parameters.

6.9.2 IN Technical Regulation Customs Union (EAC) FISCO

Markings:

Special Condition for Safe Use (X):

See certificate for special conditions.

[FISCO]: 0Ex ia IIC T4 Ga X, T4(–50 °C ≤ Ta≤ +60 °C)
See certificate for entity parameters.

6.10 Combinations

KG

Combination of I1/IA, I5/IE, I6/IF, and I7/IG

6.11 Conduit Plugs and Adapters

ATEX Flameproof and Increased Safety

Certificate

Standards

Markings:

FM13ATEX0076X

EN 60079-0:2012, EN 60079-1:2007, IEC 60079-7:2007

2 G Ex de IIC Gb

Special Conditions for Safe Use (X):

1. When the thread adapter or blanking plug is used with an enclosure
in type of protection increased safety “e” the entry thread shall be
suitably sealed in order to maintain the ingress protection rating (IP)
of the enclosure.

2. The blanking plug shall not be used with an adapter.

3. Blanking Plug and Threaded Adapter shall be either NPT or Metric
thread forms. G½ and PG 13.5 thread forms are only acceptable for
existing (legacy) equipment installations.

IECEx Flameproof and Increased Safety

Certificate

Quick Start Guide 29

IECEx FMG 13.0032X

Quick Start Guide May 2019

Standards

IEC 60079-0:2011, IEC 60079-1:2007, IEC
60079-7:2006-2007

Markings

Ex de IIC Gb

Special Conditions for Safe Use (X):

1. When the thread adapter or blanking plug is used with an enclosure
in type of protection increased safety “e” the entry thread shall be
suitably sealed in order to maintain the ingress protection rating (IP)
of the enclosure.

2. The blanking plug shall not be used with an adapter.

3. Blanking Plug and Threaded Adapter shall be either NPT or Metric
thread forms. G½ and PG 13.5 thread forms are only acceptable for
existing (legacy) equipment installations.

Table 6-2: Conduit Plug Thread Sizes

Thread Identification mark

M20 x 1.5 M20

½–14 NPT ½ NPT

G½ G½

Table 6-3: Thread Adapter Thread Sizes

Male thread Identification mark

M20 x 1.5–6H M20

½–14 NPT ½–14 NPT

¾–14 NPT ¾–14 NPT

Female thread Identification mark

M20 x 1.5–6H M20

½–14 NPT ½–14 NPT

PG 13.5 PG 13.5

6.12 Additional certifications

6.12.1 SBS American Bureau of Shipping (ABS) Type Approval

Certificate

ABS Rules

2013 Steel Vessels Rules 1-1-4/7.7, 1-1-Appendix 3, 4-8-3/1.7,
4-8-3/13.1

30 Rosemount 848T

16-HS1553096-PDA

May 2019 Quick Start Guide

6.12.2 SBV Bureau Veritas (BV) Type Approval

Certificate

Requirements

Application

26325 BV

Bureau Veritas Rules for the Classification of Steel Ships

Class notations: AUT-UMS, AUT-CCS, AUT-PORT and AUT­IMS

6.12.3 SDN Det Norske Veritas (DNV) Type Approval

Certificate

Intended Use

Application

Det Norske Veritas’ Rules for Classification of Ships, High
Speed & Light Craft and Det Norske Veritas’ Offshore
Standards

Temperature D

Humidity B

Vibration A

Enclosure B/IP66: Al

TAA00000K8

Location classes

EMC A

6.12.4 SLL Lloyds Register (LR) Type Approval

C/IP66: SST

Certificate

Application

Quick Start Guide 31

11/60002

Environmental categories ENV1, ENV2, ENV3, and ENV5

Quick Start Guide May 2019

7 Declaration of conformity

32 Rosemount 848T

May 2019 Quick Start Guide

Quick Start Guide 33

ᴹ

China RoHS

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Rosemount 848T



List of Rosemount 848T Parts with China RoHS Concentration above MCVs

䜘Ԧ〠

Part Name

ᴹᇣ⢙䍘Hazardous Substances

䫵

Lead
(Pb)

⊎

Mercury

(Hg)

䭹

Cadmium

(Cd)

ޝԧ䬜

Hexavalent

Chromium

(Cr +6)

ཊⓤ㚄㤟

Polybrominated

biphenyls

(PBB)

ཊⓤ㚄㤟䟊

Polybrominated
diphenyl ethers

(PBDE)

⭥ᆀ㓴Ԧ

Electronics

Assembly

X O O O O

O

༣փ㓴Ԧ

Housing

Assembly

O O O X O

O

Րᝏಘ㓴Ԧ

Sensor

Assembly

X O O O O

O

ᵜ㺘Ṭ㌫׍ᦞ

SJ/T11364

Ⲵ㿴ᇊ㘼ࡦ֌

This table is proposed in accordance with the provision of SJ/T11364.

O:

᜿Ѫ䈕䜘ԦⲴᡰᴹ൷䍘ᶀᯉѝ䈕ᴹᇣ⢙䍘Ⲵ䟿൷վҾ

GB/T 26572

ᡰ㿴ᇊⲴ䲀䟿㾱≲

O: Indicate that said hazardous substance in all of the homogeneous materials for this part is below the limit requirement of
GB/T 26572.

X:

᜿Ѫ൘䈕䜘Ԧᡰ֯⭘Ⲵᡰᴹ൷䍘ᶀᯉ䟼ˈ㠣ቁᴹа㊫൷䍘ᶀᯉѝ䈕ᴹᇣ⢙䍘Ⲵ䟿儈Ҿ

GB/T 26572

ᡰ㿴ᇊⲴ䲀䟿㾱≲

X: Indicate that said hazardous substance contained in at least one of the homogeneous materials used for this part is above
the limit requirement of GB/T 26572.

Quick Start Guide May 2019

8 China RoHS

34 Rosemount 848T

May 2019 Quick Start Guide

Quick Start Guide 35

* 00825-0100-4697*

00825-0100-4697, Rev. TC

Quick Start Guide

May 2019

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Emerson Automation Solutions
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[phone] or [phone]
[phone]
[e-mail]

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Emerson Automation Solutions
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[phone]
[phone]
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[phone]
[phone]
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North America Regional Office

Emerson Automation Solutions
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[phone] or [phone]
[phone]
[e-mail]

Europe Regional Office

Emerson Automation Solutions Europe
GmbH
Neuhofstrasse 19a P.O. Box 1046
CH 6340 Baar
Switzerland

[phone]
[phone]
[e-mail]

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Emerson Automation Solutions
Emerson FZE P.O. Box 17033
Jebel Ali Free Zone - South 2
Dubai, United Arab Emirates

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