Rosemount 248H Quick Start Guide

Rosemount™ 248 Temperature

Transmitter

Quick Start Guide

00825-0100-4825, Rev HA

January 2017

Quick Start Guide

January 2017

NOTICE

This guide provides basic guidelines for the Rosemount 248. It does not provide instructions for detailed
configuration, diagnostics, maintenance, service, troubleshooting, or installations. Refer to the Rosemount
248 Reference Manual

Emerson.com/Rosemount

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 Hazardous Locations Certifications for
any restrictions associated with a safe installation.

Process leaks may cause harm or result in death.

 Install and tighten thermowells or sensors before applying pressure.

 Do not remove the thermowell while in operation.

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.

 Unless marked, the conduit/cable entries in the transmitter housing use a

marked “M20” are M20  1.5 thread form. On devices with multiple conduit entries, all entries have the
same thread form. Only use plugs, adapters, glands, or conduit with a compatible thread form when
closing entries.

 When installing in a Hazardous Location, use only appropriately listed or Ex certified plugs, adapters or

glands in cable/conduit entries.

for more instruction. The manual and this guide are also available electronically on

.

1

/2–14 NPT thread form. Entries

Contents

Configure (bench calibration) . . . . . . . . . . . . . . 3

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

Connect the wiring . . . . . . . . . . . . . . . . . . . . . . . 9

2

Perform a loop test . . . . . . . . . . . . . . . . . . . . . . 12

Product Certifications . . . . . . . . . . . . . . . . . . . 13

January 2017

A

B

C

D

1.0 Configure (bench calibration)

The Rosemount 248 can be configured 3 ways: a Field Communicator, the
Rosemount 248 PC Programming Kit, or custom configured at the factory using
the C1 option code.

Refer to the Rosemount 248 Reference Manual

Reference Manual

1.1 Connecting a Field Communicator

The Field Communicator Field Device Revision Dev v1, DD v1or later is required
for complete functionality.

Figure 1. Connecting a Field Communicator to a Bench Loop

for more information.

Quick Start Guide

and the Field Communicator

A. Rosemount 248 Transmitter
B. 250 Ω ≤ R

≤ 1100 Ω

L

Note

Do not operate when power is below 12 Vdc at the transmitter terminal.

1.2 Verify transmitter configuration

To verify operation using a Field Communicator, refer to the Fast Keys below.
Refer to the Rosemount 248 Reference Manual for more detailed description.

Function Fast Keys Fun ction Fast Keys

Active Calibrator 1, 2, 2, 1, 3 Poll Address 1, 3, 3, 3, 1

Alarm/Saturation 1, 3, 3, 2 Process Temperature 1, 1

AO Alar m Typ e 1, 3, 3, 2, 1 Process Variables 1, 1

Burst Mode 1, 3, 3, 3, 3 PV Damping 1, 3, 3, 1, 3

Burst Option 1, 3, 3, 3, 4 PV Unit 1, 3, 3, 1, 4

Calibration 1, 2, 2 Range Values 1, 3, 3, 1

Configuration 1, 3 Review 1, 4

C. Field Communicator
D. Power supply

3

Quick Start Guide

Function Fast Keys Function Fas t Keys

D/A Trim 1, 2, 2, 2 Scaled D/A Trim 1, 2, 2, 3

Damping Values 1, 1, 10 Sensor Connection 1, 3, 2, 1, 1

Date 1, 3, 4, 2 Sensor 1 Setup 1, 3, 2, 1, 2

Descriptor 1, 3, 4, 3 Sensor Serial Number 1, 3, 2, 1, 3

Device Output Configuration 1, 3, 3 Sensor 1 Trim-Factory 1, 2, 2, 1, 2

Diagnostics and Service 1, 2 Sensor Type 1, 3, 2, 1, 1

Filter 50/60 Hz 1, 3, 5, 1 Software Revision 1, 4, 1

Hardware Rev 1, 4, 1 Status 1, 2, 1, 4

Intermittent Detect 1, 3, 5, 4 Ter min al Te mper atu re 1, 3, 2, 2,

Loop Test 1, 2, 1, 1 Test Device 1, 2, 1

LRV (Lower Range Value) 1, 1, 6 URV (Upper Range Value) 1, 1, 7

LSL (Lower Sensor Limit) 1, 1, 8 USL (Upper Sensor Limit) 1, 1, 9

Measurem ent Filtering 1, 3, 5 Variable M apping 1, 3, 1

Message 1, 3, 4, 4 Variable Re-Map 1, 3, 1, 3

Num Req Preams 1, 3, 3, 3, 2 Write Protect 1, 2, 3

Open Sensor Holdoff 1, 3, 5, 3 2-Wire Offset 1, 3, 2, 1, 2, 1

Percent Range 1, 1, 5

For devices following the new device dashboard, refer to the Fast Keys below:

January 2017

Function Fast Keys Function Fast Keys

Active Calibrator 3, 4, 1, 3 Poll Address 2, 2, 4, 1

Alarm Saturation 2, 2, 2, 5 Process Temperature 1, 3

AO Alarm Type 2, 2, 2, 5 Process Variables 3, 2, 1

Burst Mode 2, 2, 4, 2 PV Damping 2, 2, 1, 6

Calibration 3, 4, 1, 1 PV Unit 2, 2, 1, 4

Configuration 2, 2, 2, 4 Range Values 2, 2, 2, 4

D/A Trim 3, 4 Scaled D/A Trim 3, 4, 3

Damping Values 2, 2, 1, 6 Sensor Connection 2, 2, 1, 3

Date 2, 2, 3, 1, 2 Sensor 1 Set Up 2, 1, 1

Descriptor 2, 2, 3, 1, 4 Sensor Serial Number 1, 7, 1, 4

Device Info 1, 7 Sensor 1 Trim 3, 4, 1, 1

Device Output Configuration 2, 2, 2, 4 Sensor 1 Trim- Factory 3, 4, 1, 2

Filter 50/60 Hz 2, 2, 3, 7, 1 Sensor Type 2, 2, 1, 2

Hardware Rev 1, 7, 2, 3 Sof tware Revision 1, 7, 2, 4

HART (R) Output 1, 7, 2, 1 Status 1, 1

Loop Test 3, 5, 1 Tag 2, 2, 3, 1,1

LVR (Lower Range Value) 2, 2, 2, 4, 3 Te rmi nal Tempe rat ure 3, 3, 2

4

January 2017

Function Fast Keys Function Fas t Keys

LSL (Lower Sensor Limit) 2, 2, 1, 9 URV (Upper Range Value) 2, 2, 2, 4, 2

Message 2, 2, 3,1,3 USL (Upper Sensor Limit) 2, 2, 1, 8

Open Sensor Holdoff 2, 2, 3, 4 Write Protect 2, 2, 3, 6

Percent Range 2, 2, 2, 3 2-Wire Offset 2, 2, 1, 5

1.3 Rosemount 248 PC Programmer Kit installation

1. Install all necessary software for Rosemount 248 PC configuration:
a. Install the Rosemount 248C software.

 Place the Rosemount 248C CD-ROM in the drive.
 Run setup.exe from Windows

b. Install the MACTek

®

HART Modem drivers completely before beginning

bench configuration with the Rosemount 248 PC Programming system.

Note

For USB modem: Upon first use, configure appropriate COM ports within the Rosemount
248PC software by selecting Port Settings from the Commu nicate menu. The USB modem
driver emulates a COM port and will add to available port selections in the software’s
drop-down box. Otherwise software defaults to first available COM port, which may not be
correc t.

2. Set up configuration system hardware:
a. Hook up the transmitter and load resistor (250-1100 ohms) wired in

series with the power supply (the Rosemount 248 device will need an
external power supply of 12-42.4 Vdc for configuration).

b. Attach the HART modem in parallel with the load resistor and connect it

to the PC.

See Table 1 for spares kit and re-order numbers. For more information, refer to
the Rosemount 248 Reference Manual

Table 1. Programming Kit Spare Part Numbers

™

NT, 2000, or XP.

.

Quick Start Guide

Product description Part number

Programming Software (CD) 00248-1603-0002

Rosemount 248 Programmer Kit - USB 00248-1603-0003

Rosemount 248 Programmer Kit - Serial 00248-1603-0004

2.0 Mount the transmitter

Mount the transmitter at a high point in the conduit run to prevent moisture
from draining into the transmitter housing.

2.1 Typical European and Asia Pacific installation

Head mount transmitter with DIN plate style sensor

1. Attach the thermowell to the pipe or process container wall. Install and
tighten the thermowell before applying process pressure.

5

Quick Start Guide

AB C

D

EF

2. Assemble the transmitter to the sensor. Push the transmitter mounting
screws through the sensor mounting plate and insert the snap rings
(optional) into the transmitter mounting screw groove.

3. Wire the sensor to the transmitter.

4. Insert the transmitter-sensor assembly into the connection head. Thread the
transmitter mounting screw into the connection head mounting holes.
Assemble the extension to the connection head. Insert the assembly into the
thermowell.

5. Slip the shielded cable though the cable gland.

6. Attach a cable gland into the shielded cable.

7. Insert the shielded cable leads into the connection head through the cable
entry. Connect and tighten the cable gland.

8. Connect the shielded power cable leads to the transmitter power terminals.
Avoid contact with sensor leads and sensor connections.

9. Install and tighten the connection head cover.

Note

Enclosure covers must be fully engaged to meet explosion-proof requirements.

January 2017

A. Rosemount 248 Transmitter
B. Connection head
C. Thermowell

D. Transmitter mounting screws
E. Integral mount sensor with flying leads
F. E xt ension

2.2 Typical North and South American installation

Head mount transmitter with threaded sensor

1. Attach the thermowell to the pipe or process container wall. Install and
tighten thermowell before applying process pressure.

2. Attach necessary extension nipples and adapters to the thermowell. Seal the
nipple and adapter threads with silicone tape.

3. Screw the sensor into the thermowell. Install drain seals if required for severe
environments or to satisfy code requirements.

4. Pull the sensor wiring leads through the universal head and transmitter.
Mount the transmitter in the universal head by threading the transmitter
mounting screws into the universal head mounting holes.

6

5. Mount the transmitter-sensor assembly into the thermowell. Seal adapter
threads with silicone tape.

January 2017

AB

D

C

E

A

B

C

6. Install conduit for field wiring to the conduit entry of the universal head. Seal

7. Pull the field wiring leads through the conduit into the universal head. Attach

8. Install and tighten the universal head cover.

Note

Enclosure covers must be fully engaged to meet explosion-proof requirements.

Quick Start Guide

conduit threads with silicone tape.

the sensor and power leads to the transmitter. Avoid contact with other
terminals.

A. Threaded thermowell
B. Threaded style sensor
C. Standard extension

D. Universal head
E. Conduit entry

2.3 Mounting to a DIN rail

To attach the Rosemount 248H to a DIN rail, assemble the appropriate rail
mounting kit (part number 00248-1601-0001) to the transmitter as shown.

A. Mounting hardware
B. Transmitter
C. Rail clip

Rail mount transmitter with remote mount sensor

The least complicated assembly uses:

 a remote mounted transmitter
 an integral mount sensor with terminal block
 an integral style connection head
 a standard extension
 a threaded thermowell

7

Quick Start Guide

Refer to the Metric Sensor Product Data Sheet for complete sensor and
mounting accessory information.

To complete the assembly, follow the procedure described below.

1. Attach the transmitter to a suitable rail or panel.

2. attach the thermowell to the pipe or process container wall. Install and
tighten the thermowell before applying pressure.

3. Attach the sensor to the connection head and mount the entire assembly to
the thermowell.

4. Attach sufficient lengths of sensor lead wire to the sensor terminal block.

5. Attach and tighten the connection head cover. Enclosure covers must be fully
engaged to meet explosion-proof requirements.

6. Run sensor lead wires from the sensor assembly to the transmitter.

7. Attach the sensor and power leads to the transmitter. Avoid contact with
leads and terminals.

January 2017

A

B

A. Rail mount transmitter
B. Sensor leads with cable gland
C. Integral mount sensor with terminal block

C

D

E

F

D. Connection head
E. Standard extension
F. T hr eade d t herm ow ell

Rail mount transmitter with threaded sensor

The least complicated assembly uses:

 a threaded sensor with flying heads
 a threaded sensor connection head
 a union and nipple extension assembly
 a threaded thermowell

Refer to Rosemount Sensor Product Data Sheet
mounting accessory information.

To complete the assembly, follow the procedure described below.

1. Attach the transmitter to a suitable rail or panel.

2. Attach the thermowell to the pipe or process container wall. Install and
tighten the thermowell before applying pressure.

for complete sensor and

8

January 2017

3. Attach necessary extension nipples and adaptors. Seal the nipple and adapter

4. Screw the sensor into the thermowell. Install drain seals if required for severe

5. Screw the connection head to the sensor.

6. Attach the sensor lead wires to the connection head terminals.

7. Attach additional sensor lead wires from the connection head to the

8. Attach and tighten the connection head cover. Enclosure covers must be fully

9. Attach the sensor and power leads to the transmitter. Avoid contact with

Quick Start Guide

threads with silicone tape.

environments or to satisfy code requirements.

transmitter.

engaged to meet explosion-proof requirements.

leads and terminals.

A B C D E

A. Rail mount transmitter
B. Threaded sensor connection head
C. Threaded style sensor

3.0 Connect the wiring

 Wiring diagrams are located on the top label of the transmitter.
 An external power supply is required to operate the transmitter.
 The power required across the transmitter power terminals is 12 to 42.4 V dc

(the power terminals are rated to 42.4 V dc).

Note

To prevent damaging the transmitter, do not allow terminal voltage to drop below 12.0 V
dc when changing the configuration parameters.

3.1 Power the transmitter

1. Connect the positive power lead to the “+” terminal. Connect the negative
power lead to the “–” terminal.

2. Tighten the terminal screws.

3. Apply power (12–42 V dc).

D. Standard ex tension
E. Threaded thermowell

9

Quick Start Guide

A

B

+

–

A

B

D

C

Figure 2. Power, Communication, and Sensor Terminals

A. Sensor terminals
B. Power/communication terminals

3.2 Ground the transmitter

Ungrounded thermocouple, mV, and RTD/Ohm inputs

Each process installation has different requirements for grounding. Use the
grounding options recommended by the facility for the specific sensor type, or
begin with grounding Option 1 (the most common).

Option 1 (for grounded housing)

1. Connect sensor wiring shield to the transmitter housing.

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

3. Ground signal wiring shield at the power supply end.

January 2017

A. Sensor wires
B. Transmitter

C. 4-20 mA loop
D. Shield ground point

Option 2 (for ungrounded housing)

1. Connect signal wiring shield to the sensor wiring shield.

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

3. Ground shield at the power supply end only.

4. Ensure the sensor shield is electrically isolated from the surrounding
grounded fixtures.

5. Connect shields together, electrically isolated from the transmitter

10

January 2017

Quick Start Guide

B

A

A. Sensor wires
B. Transmitter

C. 4-20 mA loop
D. Shield ground point

C

D

Option 3 (for grounded or ungrounded housing)

1. Ground sensor wiring shield at the sensor, if possible.

2. Ensure the sensor wiring and signal wiring shields are electrically isolated
from the transmitter housing.

3. Do not connect the signal wiring shield to the sensor wiring shield.

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

B

A

A. Sensor wires
B. Transmitter

D

C. 4-20 mA loop
D. Shield ground point

C

Option 4 (for grounded thermocouple inputs)

1. Ground sensor wiring shield at the sensor.

2. Ensure the sensor wiring and signal wiring shields are electrically isolated
from the transmitter housing.

3. Do not connect the signal wiring shield to the sensor wiring shield.

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

11

Quick Start Guide

A

B

D

C

January 2017

A. Sensor wires
B. Transmitter

C. 4-20 mA loop
D. Shield ground point

4.0 Perform a loop test

The loop test command verifies transmitter output, loop integrity, and
operation of any recorders or similar devices installed in the loop.

Note

This is not available with the Rosemount 248C Configuration Interface.

4.1 Initiate a loop test

1. Connect an external ampere meter in series with the transmitter loop (so the
power to the transmitter goes through the meter at some point in the loop.

2. From the Home screen, select: 1) Device Setup > 2) Diag/Serv > 1) Test
Device > 1) Loop Test.

3. Select a discrete milliampere level for the transmitter to output. At Choose
Analog Output, select: 1) 4 mA > 2) 20 mA, or select 3) Other to manually
input a value between 4 and 20 milliamperes.

4. Select Enter to show the fixed output.

5. Select OK.

6. In the test loop, check that the fixed mA input and the transmitter’s mA
output are the same value.

Note

If the readings do not match, either the transmitter requires an output trim or the current
meter is malfunctioning.

After completing the test, the display returns to the loop test screen and allows
the user to choose another output value.

4.2 End the loop test

12

1. Select 5) End.

2. Select Enter.

January 2017

5.0 Product Certifications

Rev 1.13

5.1 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.

5.2 Ordinary Location Certification

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

5.3 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.

5.4 USA

E5 USA Explosionproof

Certificate: 3016555
Standards: FM Class 3600:2011, FM Class 3611:2004, FM Class 3615:2006,

FM Class 3810:2005, ANSI/ISA 60079-0:2009, ANSI/ISA 60079-11:2009,

IEC 60529: 2004, NEMA

Markings: XP CL I, DIV 1, GP B, C, D; DIP CL II/III, DIV 1, GP E, F, G); NI CL1, DIV 2,

GP A, B, C, D when installed per Rosemount drawing 00248-1065; Type 4;

®

– 250: 1991

Quick Start Guide

I5 FM Intrinsic Safety

Certificate: 3016555
Standards: FM Class 3600:2011, FM Class 3610:2010, FM Class 3611:2004,

Markings: S CL I/II/III, DIV 1, GP A, B, C, D, E, F, G; NI CL1, DIV 2, GP A, B, C, D

5.5 Canada

I6 Canada Intrinsically Safe

Certificate: 1091070
Standards: CAN/CSA C22.2 No. 0-10, CSA Std. C22.2 No. 25-1966,

Markings: IS CL I, DIV 1 GP A, B, C, D when installed per Rosemount drawing

FM Class 3810:2005, ANSI/ISA 60079-0:2009, ANSI/ISA 60079-11:2009,
IEC 60529: 2004, NEMA – 250: 1991

when installed per Rosemount drawing 00248-1055; Type 4X; IP66/68

CAN/CSA C22.2 No. 94-M91, CAN/CSA C22.2 No. 157-92,
CSA C22.2 No. 213-M1987, C22.2 No 60529-05

00248-1056; Suitable for CL I DIV 2 GP A, B, C, D when installed per
Rosemount drawing 00248-1055; Type 4X, IP66/68

13

Quick Start Guide

K6 CSA Intrinsically Safe, Explosionproof, and Class 1, Division 2

Certificate: 1091070
Standards: CAN/CSA C22.2 No. 0-10, CSA Std. C22.2 No. 25-1966,

Markings: XP CL I/II/III, DIV 1, GP B, C, D, E, F, G when installed per Rosemount

5.6 Europe

E1 ATEX Flameproof

Certificate: FM12ATEX0065X
Standards: EN 60079-0: 2012, EN 60079-1: 2007, EN 60529:1991 +A1:2000
Markings: II 2 G Ex d IIC T6…T1 Gb, T6(–50 °C ≤ T

See Tab l e 2 at the end of the Product Certifications section for Process Temperatures.

Special Conditions for Safe Use (X):

1. See certificate for ambient temperature range.

2. The non-metallic label may store an electrostatic charge and become a source of
ignition in Group III environments.

3. Guard the LCD display cover against impact energies greater than 4 joules.

4. Flameproof joints are not intended for repair.

5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature
probes with Enclosure option “N”.

6. Care shall be taken by the end user to ensure that the external surface temperature on
the equipment and the neck of DIN Style Sensor probe does not exceed 130 °C.

7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid
installations that cause electrostatic build-up on painted surfaces, and only clean the
painted surfaces with a damp cloth. If paint is ordered through a special option code,
contact the manufacturer for more information.

January 2017

CSA Std. C22.2 No. 30-M1986, CAN/CSA C22.2 No. 94-M91, CSA Std.
C22.2 No.142-M1987, CAN/CSA C22.2 No. 157-92,
CSA C22.2 No. 213-M1987, C22.2 No 60529-05

drawing 00248-1059; IS CL I, DIV 1 GP A, B, C, D when installed per
Rosemount drawing 00248-1056; Suitable for CL I DIV 2 GP A, B, C, D
when installed per Rosemount drawing 00248-1055; Type 4X,
IP66/68 Conduit Seal not required

≤ +40 °C),

T5…T1(–50 °C ≤ T

≤ +60 °C)

a

a

14

I1 AT EX I ntr insic Safet y

Certificate: Baseefa03ATEX0030X
Standards: EN 60079-0: 2012, EN 60079-11: 2012
Markings: II 1 G Ex ia IIC T5/T6 Ga, T5(–60 °C ≤ T

T6(–60 °C ≤ T

≤ +60 °C)

a

≤ +80 °C),

a

See Tab l e 3 at the end of the Product Certifications section for Entity Parameters.

Special Condition for Safe Use (X):

1. The apparatus must be installed in an enclosure which affords it a degree of protection
of at least IP20. Non-metallic enclosures must have a surface resistance of less than
1 GΩ; light allow or zirconium enclosures must be protected from impact and friction
when installed.

January 2017

N1 ATEX Type n – with enclosure

NC ATEX Type n – without enclosure

Special Condition for Safe Use (X):

1. The Model 248 Temperature Transmitter must be installed in a suitably certified

ND AT EX Dust

See Tab l e 2 at the end of the Product Certifications section for Process Temperatures.

Special Conditions for Safe Use (X):

1. See certificate for ambient temperature range.

2. The non-metallic label may store an electrostatic charge and become a source of

3. Guard the LCD display cover against impact energies greater than 4 joules.

4. Flameproof joints are not intended for repair.

5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature

6. Care shall be taken by the end user to ensure that the external surface temperature on

7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid

Quick Start Guide

Certificate: BAS00ATEX3145
Standards: EN 60079-0:2012, EN 60079-15:2010
Markings: II 3 G Ex nA IIC T5 Gc (–40 °C ≤ T

≤ +70 °C)

a

Certificate: Baseefa13ATEX0045X
Standards: EN 60079-0:2012, EN 60079-15:2010
Markings: II 3 G Ex nA IIC T5 Gc (–40°C ≤ T

≤ +70°C)

a

enclosure such that it is afforded a degree of protection of at least IP54 in accordance
with IEC 60529 and EN 60079-15

Certificate: FM12ATEX0065X
Standards: EN 60079-0: 2012, EN 60079-31: 2009, EN 60529:1991 +A1:2000
Markings: II 2 D Ex tb IIIC T130 °C Db, (–40 °C ≤ T

≤ +70 °C); IP66

a

ignition in Group III environments.

probes with Enclosure option “N”.

the equipment and the neck of DIN Style Sensor probe does not exceed 130 °C.

installations that cause electrostatic build-up on painted surfaces, and only clean the
painted surfaces with a damp cloth. If paint is ordered through a special option code,
contact the manufacturer for more information.

5.7 International

E7 ECEx Flameproof

Certificate: IECEx FMG 12.0022X
Standards: IEC 60079-0:2011, IEC 60079-1:2007-04,
Markings: Ex d IIC T6…T1 Gb, T6(–50 °C ≤ T

See Tab l e 2 at the end of the Product Certifications section for Process Temperatures.

≤ +40 °C), T5…T1(–50 °C ≤ Ta ≤ +60 °C)

a

15

Quick Start Guide

Special Conditions for Safe Use (X):

1. See certificate for ambient temperature range.

2. The non-metallic label may store an electrostatic charge and become a source of
ignition in Group III environments.

3. Guard the LCD display cover against impact energies greater than 4 joules.

4. Flameproof joints are not intended for repair.

5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature
probes with Enclosure option “N”.

6. Care shall be taken by the end user to ensure that the external surface temperature on
the equipment and the neck of DIN Style Sensor probe does not exceed 130 °C.

7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid
installations that cause electrostatic build-up on painted surfaces, and only clean the
painted surfaces with a damp cloth. If paint is ordered through a special option code,
contact the manufacturer for more information.

I7 ECEx Intrinsic Safety

Certificate: IECEx BAS 07.0086X
Standards: IEC 60079-0:2011, IEC 60079-11:2011
Markings: Ex ia IIC T5/T6 Ga, T5(–60 °C ≤ T

See Tab l e 3 at the end of the Product Certifications section for Entity Parameters

Special Condition for Safe Use (X):

1. The apparatus must be installed in an enclosure which affords it a degree of protection
of at least IP20. Non-metallic enclosures must have a surface resistance of less than
1 GΩ; light allow or zirconium enclosures must be protected from impact and friction
when installed.

January 2017

≤ +80 °C), T6(–60 °C ≤ Ta ≤ +60 °C)

a

N7 IECEx Type n – with enclosure

Certificate: IECEx BAS 07.0055
Standards: IEC 60079-0:2011, IEC 60079-15:2010
Markings: Ex nA IIC T5 Gc; T5(–40 °C ≤ T

NG IECEx Type n – without enclosure

Certificate: IECEx BAS 13.0029X
Standards: IEC 60079-0:2011, IEC 60079-15:2010
Markings: Ex nA IIC T5/T6 Gc; T5(–60 °C ≤ T

Special Condition for Safe Use (X):

1. The Model 248 Temperature Transmitter must be installed in a suitably certified
enclosure such that it is afforded a degree of protection of at least IP54 in accordance
with IEC 60529 and IEC 60079-15.

5.8 China

E3 NEPSI Flameproof

Certificate: GYJ16.1335X
Standards: GB3836.1-2010, GB3836.2-2010
Markings: Ex d IIC T6~T1 Gb: T6…T1(–50 °C ≤ T

16

T5…T1 (–50 °C ≤ T

≤ +60 °C)

a

≤ +70 °C)

a

≤ +80 °C), T6(–60 °C ≤ Ta ≤ +60 °C)

a

≤ +40 °C)

a

January 2017

Special Conditions for Safe Use (X):

1. Ambient temperature range is: T6…T1(–50 °C ≤ T

2. The earth connection facility in the enclosure should be connected reliably.

3. During installation, there should be no mixture harmful to flameproof housing.

4. During installation in hazardous location, cable glands, conduits and blanking plugs,

5. During installation, use and maintenance in explosive gas atmospheres, observe the

6. End user is not permitted to change any components inside, but to settle the problem

7. When installation, use and maintenance of this product, observe the following

I3 NEPSI Intrinsic Safety

See Tab l e 3 at the end of the Product Certifications section for Entity Parameters.

Special Conditions for Safe Use (X):

1. Symbol “X” is used to denote specific conditions of use:

2. The relation between T code and ambient temperature range is:

Quick Start Guide

≤ +40 °C) T5…T1 (–50 °C ≤ Ta ≤

a

+60 °C).

certified by state-appointed inspection bodies with Ex d IIC Gb degree, should be used.

warning “Do not open when energized”.

in conjunction with manufacturer to avoid damage to the product.

standards:
GB3836.13-2013 “Electrical apparatus for explosive gas atmospheres Part 13: Repair
and overhaul for apparatus used in explosive gas atmospheres”
GB3836.15-2000 “Electrical apparatus for explosive gas atmospheres Part 15:
Electrical installations in hazardous area (other than mines)”
GB3836.16-2006 “Electrical apparatus for explosive gas atmospheres Part 16:
Inspection and maintenance of electrical installation (other than mines)
GB50257-2015 “Code for construction and acceptance of electric device for explosion
atmospheres and fire hazard electrical equipment installation engineering”

Certificate: GYJ16.1334X
Standards: GB3836.1-2010, GB3836.4-2010, GB3836.20-2010
Markings: Ex ia IIC T5/T6 Ga; T5(–60 °C ≤ T

≤ +80 °C), T6(–60 °C ≤ Ta ≤ +60 °C)

a

a. The enclosure may contain light metal, attention should be taken to avoid ignition

hazard due to impact or friction

b. The apparatus must be installed in an enclosure which affords it a degree of

protection of at least IP20. Non-metallic enclosures must have a surface resistance of
less than 1 GΩ.

T code Temperature range

T6 –60 °C ≤ T

T5 –60 °C ≤ T

3. Intrinsically Safe parameters:
HART loop terminals (+ and –)

Maximum input

voltage U

(V)

i

30 130 1.0 3.6 0

Maximum input

current I

(mA)

i

Maximum input

power: P

The above supply must be derived from a linear supply.

≤ +60 °C

a

≤ +80 °C

a

(W)

i

Maximum internal

parameters

Ci (nF) Li (mH)

17

Quick Start Guide

Sensor terminals (1 to 4)

January 2017

Maximum output

voltage U

o

45 26 290 2.1 0

(V)

Maximum output

current I

(mA)

o

Maximum output

power: P

(mW)

o

Maximum internal

parameters

Ci (nF) Li (mH)

Sensor terminals (1 to 4)

Group

IIC 23.8 23.8

IIB 237.9 87.4

IIA 727.9 184.5

Maximum external parameters

Co (nF) Lo (mH)

4. The product should be used with Ex-certified associated apparatus to establish
explosion protection system that can be used in explosive gas atmospheres. Wiring
and terminals should comply with the instruction manual of the product and
associated apparatus.

5. The cables between this product and associated apparatus should be shielded cables
(the cables must have insulated shield). The shielded has to be grounded reliably in
non-hazardous area.

6. End user is not permitted to change any components inside, but to settle the problem
in conjunction with manufacturer to avoid damage to the product.

7. When installation, use and maintenance of this product, observe the following
standards:
GB3836.13-1997 “Electrical apparatus for explosive gas atmospheres Part 13: Repair
and overhaul for apparatus used in explosive gas atmospheres”

GB3836.15-2000 “Electrical apparatus for explosive gas atmospheres Part 15:
Electrical installations in hazardous area (other than mines)”
GB3836.16-2006 “Electrical apparatus for explosive gas atmospheres Part 16:
Inspection and maintenance of electrical installation (other than mines)”

GB50257-1996 “Code for construction and acceptance of electrical device for

explosion atmospheres and fire hazard electrical equipment installation engineering.

N3 NEPSI Type n

Special Condition for Safe Use (X):

1. See certificate for special conditions

5.9 EAC

EM Technical Regulation Customs Union (EAC) Flameproof

18

Certificate: GYJ15.1089
Standards: GB3836.1-2010, GB3836.8-2003
Markings: Ex nA nL II T5 Gc (–40 °C ≤ T

≤+70 °C)

a

Certificate: TC RU C-US.AA87.B.00057
Markings: 1Ex d IIC T6…T1 Gb X, T6(–50 °C ≤ T

T5…T1(–50 °C ≤ T

≤ +60 °C); IP66/IP67

a

≤ +40 °C),

a

January 2017

Special Condition for Safe Use (X):

1. See certificate for special conditions.

IM Technical Regulation Customs Union (EAC) Intrinsic Safety

Certificate: TC RU C-US.AA87.B.00057
Markings: 0Ex ia IIC T5,T6 Ga X, T6(–60 °C ≤ T

T5(–60 °C ≤ T

Special Condition for Safe Use (X):

1. See certificate for special conditions.

5.10 Combinations

K5 Combination of E5 and I5

KM Combination of EM and IM

Table 2. Process Temperatures

≤ +80 °C); IP66/IP67

a

≤ +60 °C),

a

Quick Start Guide

Process temperature without LCD display

Temperature class Ambient temperature

No ext. 3-in. 6-in. 9-in.

T6 –50 °C to +40 °C 55 55 60 65

T5 –50 °C to +60 °C 70 70 70 75

T4 –50 °C to +60 °C 100 110 120 130

T3 –50 °C to +60 °C 170 190 200 200

T2 –50 °C to +60 °C 280 300 300 300

T1 –50 °C to +60 °C 440 450 450 450

cover (°C)

Table 3. Entity Parameters

Parameters

Voltage Ui 30 V 45 V

Current Ii 130 mA 26 mA

Power Pi 1 W 290 mW

Capacitance Ci 3.6 nF 2.1 nF

Inductance Li 0 mH 0 μH

HART loop

terminals + and –

Sensor terminals 1

to 4

5.11 Additional Certifications (Rosemount 248 Head Mount only)

SBS American Bureau of Shipping (ABS) Type Approval

Certificate: 11-HS771994B-1-PDA
Intended Use: Measurement of temperature for marine and offshore applications.

19

Quick Start Guide

SBV Bureau Veritas (BV) Type Approval

Certificate: 26325
Requirements: Bureau Veritas Rules for the Classification of Steel Ships
Application: Class notations: AUT-UMS, AUT-CCS, AUT-PORT and AUT-IMS;

SDN Det Norske Veritas (DNV) Type Approval

Certificate: A-14187
Intended Use: Det Norske Veritas’ Rules for Classification of Ships, High Speed & Light

Application:

SLL Lloyds Register (LR) Type Approval

Certificate: 11/60002
Application: Environmental categories ENV1, ENV2, ENV3, and ENV5

Temperature transmitter cannot be installed on diesel engines.

Craft and Det Norske Veritas’ Offshore Standards.

Location classes

Tem pe ra tu r e D

Humidity B

Vibration A

EMC A

Enclosure

B/IP66 Al,

C/IP66: SST

January 2017

20

January 2017

Figure 3. Rosemount 248 Declaration of Conformity

Quick Start Guide

21

Quick Start Guide

January 2017

22

January 2017

Quick Start Guide

23

Quick Start Guide

ᴹ

China RoHS

㇑᧗⢙䍘䎵䗷ᴰབྷ⎃ᓖ䲀٬Ⲵ䜘Ԧරࡇ㺘

Rosemount 248



List of Rosemount 248 Parts with China RoHS Concentration above MCVs

䜘Ԧ〠

Part Name

ᴹᇣ⢙䍘䍘Hazardous Substances

䫵

Lead
(Pb)

⊎

Mercury

(Hg)

䭹

Cadmium

(Cd)

ޝԧ䬜䬜

Hexavalent
Chromium

(Cr +6)

ཊⓤ㚄㚄㤟

Polybrominated

biphenyls

(PBB)

ཊⓤ㚄㚄㤟䟊

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.

January 2017

24

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Emerson Automation Solutions

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[phone] or [phone]
[phone]
[e-mail]

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[phone]
[phone]
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[phone]
[phone]
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[phone]
[phone]
[e-mail]

Middle East and Africa Regional Office

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Emerson FZE P.O. Box 17033
Jebel Ali Free Zone - South 2
Dubai, United Arab Emi rates

[phone]
[phone]

[e-mail]

*00825-0100-4825*

Quick Start Guide

00825-0100-4825, Rev HA

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Standard Terms and Conditions of Sale can be found on the Te rm s

and Conditions of Sale page.

The Emerson logo is a trademark and service mark of Emerson
Electric Co.
Rosemount and Rosemount logotype are trademarks of Emerson.
HART is a registered trademark of FieldComm Group.
NEMA is a registered trademark and service mark of the National
Electrical Manufacturers Association.
National Electric Code is a registered trademark of National Fire
Protection Association, Inc.
Windows is a trademark of Microsoft Corporation in the United
States and other countries.
All other marks are the property of their respective owners.
© 2017 Emerson. All rights reser ved.

January 2017