Rosemount 248H Specifications
Product Data Sheet
January 2018
00813-0100-4825, Rev LB
Rosemount™ 248 Temperature Transmitter
Basic temperature transmitter offers a reliable solution for temperature monitoring points.
Standard transmitter design provides flexible and reliable performance in process environments.
Experience lower over-all installation costs when compared to wiring sensor directly, reducing the need for
expensive extension wires and multiplexers.
Explore the benefits of a Complete Point Solution
™
from Rosemount Temperature.
Rosemount 248
January 2018
Rosemount 248 Temperature Transmitter
Basic temperature transmitter offers a cost effective solution for temperature monitoring points
DIN B style head mount transmitter
Variet y of DIN B enclosure options
Rail mount
HART
Single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
Standard transmitter design provides flexible and reliable performance in process environments
Offers improved measurement accuracy and reliability over direct-wiring a sensor to the digital control system for a lower overall
installation cost
One-year stability rating reduces maintenance costs
Open/short sensor diagnostics assist with detecting issues in the sensor loop
Compensation for ambient temperatures enhances transmitter performance
®
/4–20 mA Protocol
Explore the benefits of a Complete Point Solution from Rosemount Temperature Measurement
An “Assemble to Sensor” option enables Emerson
temperature solution, delivering an installation-ready transmitter and sensor
assembly
Emerson offers a selection of RTDs, thermocouples, and thermowells that bring
superior durability and Rosemount reliability to temperature sensing, complementing
the Rosemount Transmitter portfolio
™
to provide a complete point
Experience global consistency and local support from numerous worldwide Rosemount Temperature manufacturing sites
World-class manufacturing provides globally consistent
product from every factory and the capacity to fulfill the
needs of any project, large or small
Experienced Instrumentation Consultants help select the right
product for any temperature application and advise on best
installation practices
An extensive global network of Emerson service and support
personnel can be on-site when and where they are needed
Contents
Rosemount 248 Temperature Transmitter . . . . . . page 3
Transmitter Specifications . . . . . . . . . . . . . . . . . . . . page 8
Product Certifications . . . . . . . . . . . . . . . . . . . . . . . page 12
2
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . page 17
Configuration Interface Specifications . . . . . . . . . page 18
Emerson.com/Rosemount
January 2018
Rosemount 248
Rosemount 248 Temperature Transmitter
Rosemount 248 Head Mount Temperature Transmitter
The Rosemount 248 has a standard transmitter design that
provides flexible and reliable performance in process
environments.
Transmitter features include:
HART/4–20 mA Communication Protocol
DIN B style head mount and rail mount transmitter types
Variety of DIN B enclosure options
Sanitary Connection Heads available (option code F and S)
Three-Point Calibration Certificate (option code Q4)
Assemble to Sensor options (option code XA)
Specification and selection of product materials, options, or
components must be made by the purchaser of the equipment.
See page 9 for more information on material selection.
Table 1. Rosemount 248 Head Mount Temperature Transmitter
The starred offerings (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
Model Product description
248 Temperature transmitter
Transmitter type
H DIN B Head Mount ★
Transmitter output
A 4–20 mA with digital signal based on HART Protocol ★
Product certifications
E5 FM Explosion-Proof A, U, G, H ★
I5 FM Intrinsic Safety and Class I, Division 2 A, B, U, N, G, S, H ★
K5 FM Intrinsic Safety, Explosion-Proof, and Class I, Division 2 A, U, G, H ★
I6 CSA Intrinsic Safety and Class I, Division 2 A, B, U, N, G, H ★
K6 CSA Intrinsic Safety, Explosion-Proof, and Class I, Division 2 A, U, G, H ★
E1 ATE X Flam epr oof A, U, G, H ★
I1 ATEX Intrinsic Safety A, B, U, N,C, G, S, H ★
ND ATE X Dust A, U, G, H ★
N1 ATEX Type n A, U, G, H ★
(1)
NC
ATEX Type n Component N ★
Enclosure option codes
permitted
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3
Rosemount 248
Table 1. Rosemount 248 Head Mount Temperature Transmitter
The starred offerings (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
E7 IECEx Flameproof and Dust A, U, G, H ★
I7 IECEx Intrinsic Safety All options ★
N7 IECEx Type n A, U, G, H ★
NG IECEx Type n Component N ★
KM Technical Regulations Customs Union (EAC) Flameproof, Intrinsic Safety A, U, G, H ★
IM Technical Regulations Customs Union (EAC) Intrinsic Safety All options ★
EM Technical Regulations Customs Union (EAC) Flameproof A, U, G, H ★
E3 China Flameproof A, G, H, N ★
I3 China Intrinsic Safety A, G, H, N ★
N3 China Type n A, U, G, H ★
NA No Approval All options ★
January 2018
Enclosure Material IP rating
A Connection head Aluminum IP66/68 ★
B BUZ head Aluminum IP65 ★
C BUZ head Polypropylene IP65 ★
G Connection head SST IP66/IP68 ★
H Universal head (junction box) SST IP66/IP68 ★
U Universal head (junction box) Aluminum IP66/IP68 ★
N No enclosure N/A N/A ★
F Sanitary connection head, DIN A Polished SST IP66/IP68
S Sanitary connection head, DIN B Polished SST IP66/IP68
Conduit entry size
(3)
1
2
0 No enclosure ★
M20 1.5 (CM20) ★
1
/2-in. NPT ★
(2)
Assemble to options
XA Sensor specified separately and assembled to transmitter ★
NS No sensor ★
Options (include with selected model number)
Alarm level configuration
A1 NAMUR alarm and saturation levels, high alarm ★
CN NAMUR alarm and saturation levels, low alarm ★
5-point calibration
C4 5-point calibration (requires the Q4 option code to generate a calibration certificate) ★
4
Emerson.com/Rosemount
January 2018
Rosemount 248
Table 1. Rosemount 248 Head Mount Temperature Transmitter
The starred offerings (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
Calibration certificate
Q4 Calibration certificate (3-point calibration) ★
External ground
G1 External ground lug assembly ★
Line filter
F6 60 Hz line voltage filter ★
Conduit electrical connector
(2)(4)
GE
GM
M12, 4 pin, male connector (eurofast®) ★
(2)(4)
A-size mini, 4 pin, male connector (minifast®) ★
External label
EL External label for ATEX Intrinsic Safety ★
Cover chain option
G3 Cover chain ★
Software configuration
C1 Custom configuration of date, descriptor and message (requires CDS with order) ★
Extended product warranty
WR3 3-year warranty ★
WR5 5-year warranty ★
Typical model number: 248H A I1 A 1 DR N080 T08 EL U250 CN
1. The Rosemount 248H with ATE X Type n Component Approval is not approved as a stand alone unit, additional system certification is required. Transmitter must be
installed so it is protected to at least the requirements of IP54.
2. All process connection threads are
3. For enclosures H and U with the XA option specified, a
4. Available with Intrinsically Safe approvals only for FM Intrinsically Safe or Non-Incendive approval (Option Code I5). To maintain NE MA
according to Rosemount Drawing 03151-1009.
1
/2-in. NPT, except for Enclosure Codes H and U with Conduit Entry Code 1 and Sensor Type Code NS.
1
/2-in. NPT to M20 1.5 thread adapter is used.
®
4X r ati ng, i t mu st be ins tal led
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5
Rosemount 248
January 2018
Rosemount 248R Rail Mount Transmitter
The Rosemount 248 has a standard transmitter design that provides
flexible and reliable performance in process environments.
Transmitter features include:
HART/4–20 mA communication protocol
Rail mount transmitter type
3-Point Calibration Certificate (Option Code Q4)
Custom Configuration of Software Parameters (Option Code C1)
Table 2. Rosemount 248R Rail Mount Transmitter
The starred offerings (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
Model Product description
248R Rail mount temperature transmitter
Output protocol
A 4–20 mA with digital signal based on HART Protocol ★
Product certifications
I5 FM Intrinsically Safe and Class I, Division 2 ★
I6 CSA Intrinsically Safe and Class I, Division 2 ★
I1 ATEX Intrinsic Safety ★
NC ATEX Type n Component ★
(1)
I7
IM GOST (Russia) Intrinsically Safe ★
NA No Approvals ★
IECEx Intrinsic Safety ★
Options (include with selected model number)
Software configuration
C1 Custom configuration of enters date, descriptor and message (CDS required with order) ★
Alarm level configuration
A1 NAMUR alarm and saturation levels, high alarm ★
CN NAMUR alarm and saturation levels, low alarm ★
5-point calibration
C4 5-point calibration (requires the Q4 option code to generate a calibration certificate) ★
Calibration certificate
Q4 Calibration certificate (3-point calibration) ★
Line filter
F6 60 Hz line voltage filter ★
6
Emerson.com/Rosemount
January 2018
Table 2. Rosemount 248R Rail Mount Transmitter
The starred offerings (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
Rosemount 248
Mounting style
GR G-rail mounting ★
Extended product warranty
WR3 3-year warranty ★
WR5 5-year warranty ★
Typical model number: 248R A I1 Q4
1. Consult factor y for availability.
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