Product Data Sheet: Rosemount 848T High Density

Product Data Sheet
February 2013
00813-0100-4697, Rev LB
Rosemount 848T High Density Temperature
Measurement Family

Innovative temperature measurement for high density applications that provide installation and
operational savings

Independently configurable inputs that support RTD, thermocouple, ohm, mV, 0-10 volt, and 4–20 mA
signals

Enclosure options and intrinsically safe design allows for installation close to any process, including
hazardous areas

WirelessHART™ capabilities extends the full benefits of PlantWeb® to previously inaccessible locations

Industry first Measurement Validation diagnostic can identify a variety of process concerns including
sensor degradation, sensor wiring connectivity, high vibration (affecting the measurement), and
abnormal process variations.
Rosemount 848T Family
February 2013
High density temperature measurement
Increase performance with High Density
Transmitters

Transmit multiple measurements with one set of electronics

Mount close to process to reduce sensor wire length and increase
measurement reliability

Enhance Accuracy with EMI correction, cold junction
compensation and device diagnostics

Reduce installation costs by as much as 70 percent
Avoid unnecessary process shutdowns, on-scale
failure related issues, and unsafe process conditions
with Measurement Validation Diagnostic

Detect measurement abnormalities and take preventive action
before shutdown is necessary

Determine validity of data points that are outside of alarm limits

Identify on-scale failures and take action before process efficiency
and safety is compromised

Detect abnormally fast process rates of change before alarm state
is reached
High density temperature measurement
Ideal solution for taking multiple measurements in close proximity to
each other such as:

Bearing temperature on pumps and motors

Distillation columns

Furnaces and boilers

Reactors, storage tanks, and many more
Simplify installation and reduce wiring costs

Eliminate Marshalling

Less wire routing and fewer terminations

Faster startups with fewer devices
Access powerful information with new Device
Dashboards
2

Leverage Human Centered Design practices to create an intuitive
user interface

Instantly see status and output of each sensor

Direct links to graphical diagnostics and troubleshooting help

Drastically lower configuration time
www.rosemount.com
Rosemount 848T Family
February 2013
Smart Wireless delivers innovative wireless solutions
for temperature measurement
Self-organizing network delivers information rich data with >99%
data reliability and establishes a highly stable network

IEC-approved WirelessHART® protocol

Emerson SmartPower™ Solutions provide an intrinsically safe
Power Module, allowing field replacements without removing the
transmitter from the process, keeping personnel safe and reducing
maintenance costs

Emerson Process Management’s layered approach to wireless
network security ensures that data transmissions are secure
FOUNDATION
fieldbus

FOUNDATION fieldbus provides effective
measurements with reduced wiring costs

Internationally recognized Digital Network
(IEC 61158) supports the connection of up to 16 devices on a single
twisted wire pair

Allows advanced computations through use of function blocks

Provides continuous measurement status for each measurement
point

Lower costs by reducing wiring, terminations, and required
number of I.S. Barriers
Explore the benefits of a complete point solution
from Rosemount Temperature Measurement

Emerson offers a selection of RTDs and thermocouples that bring
superior durability and Rosemount reliability to temperature
sensing

A broad thermowell offering meets the demanding requirements
of a variety of process applications
Experience global consistency and local support from
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

Experienced Instrumentation Consultants help select the right
products for each temperature application

An extensive global network of Emerson service and support
personnel can be onsite when and where they are needed
3
February 2013
Rosemount 848T Family
Contents
FOUNDATION
fieldbus
High density temperature measurement. . . . . .page 2
The Rosemount 848T FOUNDATION fieldbus
Temperature Transmitter . . . . . . . . . . . . . . . . . . .page 5
4
The Rosemount 848T Wireless Temperature
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21
Ordering Information . . . . . . . . . . . . . . . . page 21
Ordering Information. . . . . . . . . . . . . . . . . . page 5
WirelessHART... the industry standard . . page 23
Specifications . . . . . . . . . . . . . . . . . . . . . . . . .page 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . page 24
Product certifications . . . . . . . . . . . . . . . . page 12
Product certifications . . . . . . . . . . . . . . . . page 28
Dimensional drawings . . . . . . . . . . . . . . . . page 18
Dimensional drawings . . . . . . . . . . . . . . . . page 30
Rosemount 848T Family
February 2013
The Rosemount 848T FOUNDATION fieldbus Temperature
Transmitter

Eight independently configurable inputs, including 2- and 3-wire RTDs,
thermocouples, mV, 2- and 3-wire ohms, and 4-20 mA signals

Industry first Measurement Validation diagnostic

Fieldbus functionality with 8 AI blocks, 2 MAI blocks, 4 ISEL Blocks, and backup LAS
Capabilities

600 Vdc isolation and integral transient protection
Table 1. Rosemount 848T FOUNDATION fieldbus Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
Model
Product Description
848T
High Density Temperature Measurement Family
Transmitter Output
Standard
F
Standard
FOUNDATION fieldbus digital signal (includes AI, MAI, and ISEL function blocks, and Backup Link Active
Scheduler)
Product Certifications(1)
Rosemount
Junction
Box required?
Standard
I1
I3
I4
H4
I5(2)
I6(2)
I7
IA
IE
IF(2)
IG
N1
N5
N6
N7
NC
ND
NJ
NK
NA
★
Standard
ATEX Intrinsic Safety
NEPSI Intrinsic Safety
TIIS Intrinsically Safety (FISCO) Type '1a’
TIIS Intrinsic Safety (FISCO) Type '1b’
FM Intrinsically Safe
CSA Intrinsically Safe
IECEx Intrinsic Safety
ATEX FISCO Intrinsic Safety
FM FISCO Intrinsically Safe
CSA FISCO Intrinsically Safe, Division 2
IECEx FISCO (Intrinsic Safety)
ATEX Type n (enclosure required)
FM Class I, Division 2, and Dust Ignition-proof (enclosure required)
CSA Class I, Division 2
IECEx Type n (enclosure required)
ATEX Type n Component (Ex nA nL)
ATEX Dust (enclosure required)
IECEx Type n Component (Ex nA nL)
FM Class 1, Division 2
No Approval
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
Yes
No(3)
Yes
No(3)
No
No
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
★
5
FOUNDATION
fieldbus
The Rosemount 848T offers a low cost solution for high density measurements. The
848T accepts eight independently configurable sensor inputs, and can be mounted
close to the process to improve data quality. FOUNDATION fieldbus architecture allows up
to 128 temperature measurements to be transmitted on a single H1 fieldbus line.
Additionally, the 848T is bus-powered, further reducing the amount of required wiring
to install the device. The robust design has proven itself in thousands of successful
installations. Capabilities include:
February 2013
Rosemount 848T Family
Table 1. Rosemount 848T FOUNDATION fieldbus Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
FOUNDATION
fieldbus
__The Expanded offering is subject to additional delivery lead time.
Expanded
E6
CSA Explosion-proof, Dust Ignition-proof, Division 2 (JX3 enclosure required)
Yes(4)
Input Types
Standard
S001
S002(5)
Standard
RTD, Thermocouple, mV, Ohm Inputs
RTDs, Thermocouple, mV, Ohm and 4–20 mA Inputs
★
★
Options (Include with selected model number)
PlantWeb Advanced Diagnostics
Standard
D04
Standard
Measurement Validation Diagnostic
★
Transient Protection
Standard
T1
Standard
Integral Transient Protector
★
Mounting Bracket
B6
Mounting Bracket for 2-in. pipe mounting – SST bracket and bolts
★
Enclosure Options
Standard
JP1
JP2
JP3
JA1
JA2
JA3
JS1
JS2
JS3
JX3(6)
Standard
Plastic Junction Box; No Entries
Plastic Box, Cable Glands (9 x M20 nickel-plated brass glands for 7.5–11.9 mm unarmored cable)
Plastic Box, Conduit Entries (5 Plugged Holes, suitable for installing 1/2-in. NPT fittings)
Aluminum Junction Box; No Entries
Aluminum Cable Glands (9 x M20 nickel-plated brass glands for 7.5–11.9 mm unarmored cable)
Aluminum Conduit Entries (5 Plugged Holes, suitable for installing 1/2-in. NPT fittings)
Stainless Steel Junction Box; No Entries
Stainless Steel Box, Cable Glands (9 x M20 nickel-plated brass glands for 7.5–11.9 mm unarmored
cable)
Stainless Steel Box, Conduit Entries (5 Plugged Holes, suitable for installing 1/2-in. NPT fittings)
Explosion-proof Box, Conduit Entries (4 Plugged Holes, suitable for installing 1/2-in. NPT fittings)
★
★
★
★
★
★
★
★
★
★
Software Configuration
Standard
C1
Standard
Custom Configuration of Date, Descriptor, Message and Wireless Parameters (Requires CDS with
Order)
★
Line Filter
Standard
F5
Standard
50 Hz Line Voltage Filter
★
Calibration Certificate
Standard
Q4
Standard
Calibration Certificate (3-Point Calibration)
★
Shipboard Certification
Standard
SBS
SLL
6
Standard
American Bureau of Shipping (ABS) Type Approval
Lloyd's Register (LR) Type Approval
★
★
Rosemount 848T Family
February 2013
Table 1. Rosemount 848T FOUNDATION fieldbus Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
FOUNDATION
fieldbus
Special Temperature Test
Expanded
LT
Test to -60 °F (-51.1 °C)
Conduit Electrical Connector
Standard
(7)
GE
GM(7)
Standard
®
★
M12, 4-pin, Male Connector (eurofast )
A size Mini, 4-pin, Male Connector (minifast®)
Typical Model Number:
848T
F
★
I5 S001 T1 B6 JA2
(1) Consult factory for availability.
(2) Available only with S001 option.
(3) The Rosemount 848T ordered with component approval is not approved as a stand-alone unit. Additional system certification is required.
(4) Enclosure Option JX3 must be ordered with Product Certification Code E6. (O-ring for the JX3 enclosure rated to -20 °C).
(5) S002 is only available with Product Certification N5, N6, N1, NC, NK, and NA.
(6) JX3 Explosion-proof enclosure rated to -4 °F (-20 °C).
(7) Available with no approval or Intrinsically Safe approvals only. For FM Intrinsically Safe (option code I5), install in accordance with Rosemount drawing
00848-4402.
Wiring
Standard Configuration
Rosemount 848T Sensor Wiring Diagram
Unless otherwise specified, the transmitter will be shipped as
follows for all eight sensors:
Standard Configuration Settings
1 2 3
2-wire
RTD and
Ohms
*
1 2 3
3-wire
RTD and
Ohms*
1 2 3
Thermocouples /
Ohms and
Millivolts
1 2 3
2-Wire RTD with
Compensation
Loop**
Emerson Process Management 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.
** The transmitter must be configured for a 3-wire RTD in order to recognize an
RTD with a compensation loop.
Sensor Type(1)
Damping(1)
Measurement Units(1)
Output(1)
Line Voltage Filter(1)
Temperature Specific
Blocks
FOUNDATION™ fieldbus
Function Blocks
Input Transient
Filter(1)
Thermocouple Type J
5 seconds
°C
Linear with Temperature
60 Hz
 Sensor Transducer Block (1)

Analog Input (8)

Multiple Analog Input (2)

Input Selector (4)
Enabled

(1) For all eight sensors.
7
February 2013
Rosemount 848T Family
FOUNDATION
fieldbus
Specifications
Functional
Alarms
Inputs
Eight independently configurable channels including
combinations of 2- and 3-wire RTDs, thermocouples, mV, and
2- and 3-wire ohm inputs. 4–20 mA inputs using optional
connector(s).
Outputs
Manchester-encoded digital signal that conforms to IEC
61158 and ISA 50.02.
The AI and ISEL function blocks allow the user to configure
the alarms to HI-HI, HI, LO, or LO-LO with a variety of priority
levels and hysteresis settings.
Electromagnetic compatibility compliance testing

Meets the criteria under European Union Directive
2004/108/EC

Meets the criteria under IEC 61326: 2006
Stability
Status

If self-diagnostics detect a sensor burnout or a transmitter
failure, the status of the measurement will be updated
accordingly.
±0.1% of reading or 0.1 °C (0.18 °F), whichever is greater,
for 2 years for RTDs.

±0.1% of reading or 0.1 °C (0.18 °F), whichever is greater,
for 1 year for thermocouples.
Ambient temperature limits
–40 to 185 °F (–40 to 85 °C)
Self calibration
Accuracy (Pt 100 @ reference condition: 20 °C)
±0.30 °C (±0.54 °F) For the complete list see “Accuracy” on
page 10.
The transmitter’s analog-to-digital circuitry automatically
self-calibrates for each temperature update by comparing the
dynamic measurement to extremely stable and accurate
internal reference elements.
Isolation
Vibration effect
• 600 Vdc channel to channel
isolation(1).
• 10 Vdc channel to channel isolation for all operating conditions
with maximum 150 meters (500 feet) of sensor lead length 18
AWG.
Transmitters are tested to high pipeline vibration
specification per IEC 60770-1 1999 with no effect on
performance.
Power supply
Backup Link Active Scheduler (LAS)
Powered over FOUNDATION fieldbus with standard fieldbus
power supplies. The transmitter operates between 9.0 and
32.0 Vdc, 22 mA maximum. (Transmitter power terminals are
rated to 42.4 Vdc.)
The transmitter is classified as a device link master, which
means it can function as a Link Active Scheduler (LAS) if the
current link master device fails or is removed from the
segment.
The host or other configuration tool is used to download the
schedule for the application to the link master device. In the
absence of a primary link master, the transmitter will claim
the LAS and provide permanent control for the H1 segment.
Transient protection
The transient protector (option code T1) helps to prevent
damage to the transmitter from transients induced on the
loop wiring by lightning, welding, heavy electrical
equipment, or switch gears. This option is installed at the
factory for the Rosemount 848T and is not intended for field
installation.
Software upgrade in the field
Update time
Software for the Rosemount 848T with FOUNDATION fieldbus is
easy to upgrade in the field using the FOUNDATION fieldbus
Common Device Software Download procedure.
Approximately 1.5 seconds to read all 8 inputs.
FOUNDATION fieldbus parameters
Humidity limits
0–99% non-condensing relative humidity.
Turn-on time
Performance within specifications is achieved in less than 30
seconds after power is applied to the transmitter.
(1)
8
Reference conditions are -40 to 60 °C (-40 to 140 °F) with 30 meters
(100 feet) of sensor lead length 18 AWG wire.
Schedule Entries
Links
Virtual Communications Relationships (VCR)
20
30
20
Rosemount 848T Family
February 2013
Physical
Input Selector (ISEL)
Used to select between inputs and generate an output
using specific selection strategies such as minimum,
maximum, midpoint, or average temperature.
The Rosemount 848T can be mounted directly onto a DIN rail
or it can be ordered with an optional junction box. When
using the optional junction box, the transmitter can be
mounted onto a panel or a 2-in. pipe stand (with option
code B6).

Since the temperature value always contains the
measurement status, this block allows the selection to be
restricted to the first “good” measurement.
Entries for optional junction box
Multiple Analog Input Block (MAI)
No Entry


Used for custom fittings
Cable Gland

FOUNDATION
fieldbus

Mounting
The MAI block allows the eight AI blocks to be multiplexed
together so they serve as one function block on the H1
segment, resulting in greater network efficiency.
9 x M20 nickel-plated brass glands for 7.5–11.9 mm
unarmored cable
Conduit

5 plugged 0.86-in. diameter holes suitable for installing
1/2-in. NPT fittings
Materials of Construction for Optional Junction Box
Junction Box Type
Aluminum
Plastic
Stainless Steel
Aluminum Explosion-proof
Paint
Epoxy Resin
NA
NA
NA
Weight
Assembly
Rosemount 848T only
Aluminum(1)
Plastic(1)
Stainless Steel (1)
Aluminum
Explosion-proof
Weight
oz
7.5
78.2
58.1
77.0
lb
.47
4.89
3.68
4.81
kg
.208
2.22
1.65
2.18
557
34.8
15.5
(1) Add 35.2 oz (2.2 lb, 0.998 kg) for nickel-plated brass glands.
Environmental ratings
Type 4X and IP66 with optional junction box. JX3
Explosion-proof enclosure rated to -4 °F (-20 °C).
Function blocks
Analog Input (AI)

Processes the measurement and makes it available on the
fieldbus segment.

Allows filtering, alarming, and engineering unit changes.
9
February 2013
Rosemount 848T Family
Accuracy
FOUNDATION
fieldbus
Table 2. Input Options/Accuracy
Accuracy Over
Range(s)
Input Ranges
Sensor Option
Sensor Reference
°C
°F
°C
°F
–200 to 550
–200 to 550
–200 to 850
–200 to 645
–200 to 850
–200 to 645
–200 to 850
–200 to 300
–70 to 300
–328 to 1022
–328 to 1022
–328 to 1562
–328 to 1193
–328 to 1562
–328 to 1193
–328 to 1562
–328 to 572
–94 to 572
± 0.57
± 0.28
± 0.30
± 0.30
± 0.54
± 0.54
± 0.38
± 0.40
± 0.30
± 1.03
± 0.50
± 0.54
± 0.54
± 0.98
± 0.98
± 0.68
± 0.72
± 0.54
–50 to 250
–58 to 482
± 3.20
± 5.76
-185 to 200
-185 to 200
-50 to 200
-50 to 200
-301 to 392
-301 to 392
-58 to 392
-58 to 392
± 0.48
± 0.96
± 0.48
± 0.96
±0.86
±1.73
±0.86
±1.73
2- and 3-Wire RTDs
Pt 50 ( = 0.00391)
Pt 100 ( = 0.00391)
Pt 100 ( = 0.00385)
Pt 100 ( = 0.003916)
Pt 200 ( = 0.00385)
Pt 200 ( = 0.003916)
Pt 500
Pt 1000
Ni 120
Cu 10
Cu 100 (a=428)
Cu 50 (a=428)
Cu 100 (a=426)
Cu 50 (a=426)
GOST 6651-94
GOST 6651-94
IEC 751; = 0.00385, 1995
JIS 1604, 1981
IEC 751; = 0.00385, 1995
JIS 1604; = 0.003916, 1981
IEC 751; = 0.00385, 1995
IEC 751; = 0.00385, 1995
Edison Curve No. 7
Edison Copper Winding No.
15
GOST 6651-94
GOST 6651-94
GOST 6651-94
GOST 6651-94
Thermocouples—Cold Junction Adds + 0.5 °C to Listed Accuracy
NIST Type B (Accuracy varies
NIST Monograph 175
according to input range)
NIST Type E
NIST Monograph 175
NIST Type J
NIST Monograph 175
NIST Type K
NIST Monograph 175
NIST Type N
NIST Monograph 175
NIST Type R
NIST Monograph 175
NIST Type S
NIST Monograph 175
NIST Type T
NIST Monograph 175
DIN L
DIN 43710
DIN U
DIN 43710
w5Re26/W26Re
ASTME 988-96
Type L
GOST R 8.585-2001
Terminal Temperature
Millivolt Input—Not approved for use with CSA Option Code I6
2- and 3-Wire Ohm Input
4–20 mA (Rosemount)(1)
4–20 mA (NAMUR)(1)
100 to 300
212 to 572
301 to 1820
573 to 3308
–200 to 1000 –328 to 1832
–180 to 760
–292 to 1400
–180 to 1372 –292 to 2501
–200 to 1300 –328 to 2372
0 to 1768
32 to 3214
0 to 1768
32 to 3214
–200 to 400
–328 to 752
–200 to 900
–328 to 1652
–200 to 600
–328 to 1112
0 to 2000
32 to 3632
-200 to 800
-328 to 1472
-50 to 85
-58 to 185
–10 to 100 mV
0 to 2000 ohms
4–20 mA
4–20 mA
± 6.00
± 10.80
± 1.54
± 2.78
± 0.40
± 0.72
± 0.70
± 1.26
± 1.00
± 1.80
± 1.00
± 1.80
± 1.50
± 2.70
± 1.40
± 2.52
± 0.70
± 1.26
± 0.70
± 1.26
± 0.70
± 1.26
± 1.60
± 2.88
± 0.71
±1.28
±0.50
±0.90
± 0.05 mV
± 0.90 ohm
± 0.01 mA
± 0.01 mA
(1) Requires the S002 option code.
Differential configuration notes
Analog sensors 4–20mA
Differential capability exists between any two sensor types.
For all differential configurations, the input range is X to Y
where X = Sensor A minimum - Sensor B max.
Two types of alarm levels are available with 4-20 mA sensors
on the 848T. These types must be ordered with the S002
option code complete with an analog connector kit. The
alarm levels, accuracy for each type are listed in Table 3.
Y = Sensor A maximum - Sensor B min.
Accuracy for Differential Configurations:
If sensor types are similar (for example, both RTDs or both
thermocouples), the accuracy = 1.5 times worst case
accuracy of either sensor type. If sensor types are dissimilar
(for example, one RTD and one thermocouple), the accuracy
= Sensor 1 Accuracy + Sensor 2 Accuracy.
10
Table 3. Analog Sensors
Sensor Option
4–20 mA (Rosemount
Standard)
4–20 mA (NAMUR)
Alarm Levels
3.9 to 20.8
mA
3.8 to 20.5
mA
Accuracy
± 0.01 mA
± 0.01 mA
Rosemount 848T Family
February 2013
Ambient temperature effect
Transmitters may be installed in locations where the ambient temperature is between –40 and 85 °C (–40 and 185 °F).
Table 4. Ambient Temperature Effects
FOUNDATION
fieldbus
Accuracy per 1.0 °C (1.8 °F) Change in Ambient
Temperature(1)
NIST Type
Temperature Range (°C)
RTD

Pt 50 ( = 0.00391)
Pt 100 ( = 0.00391)
Pt 100 ( = 0.00385)
Pt 100 ( = 0.003916)
Pt 200 ( = 0.003916)
Pt 200 ( = 0.00385)
Pt 500
Pt 1000
Cu 10
Cu 100 (a=428)
Cu 50 (a=428)
Cu 100 (a=426)
Cu 50 (a=426)
Ni 120













0.004 °C (0.0072 °F)
0.002 °C (0.0036 °F)
0.003 °C (0.0054 °F)
0.003 °C (0.0054 °F)
0.004 °C (0.0072 °F)
0.004 °C (0.0072 °F)
0.003 °C (0.0054 °F)
0.003 °C (0.0054 °F)
0.03 °C (0.054 °F)
0.002 °C (0.0036 °F)
0.004 °C (.0072 °F)
0.002 °C (0.0036 °F)
0.004 °C (.0072 °F)
0.003 °C (0.0054 °F)
Thermocouple (R = the value of the reading)
 0.014 °C
Type B

300  R < 1000

0.054 °C - (0.011% of (R - 100))
0.005 °C + (0.00043% of R)
0.0054 °C + (0.00029% of R)

100  R < 300
All
R0
0.0054 °C + (0.0025% of |R|)
0.0061 °C + (0.00054% of R)

0.0061 °C + (0.0025% of |R|)
0.0068 °C + (0.00036% of R)
0.016 °C

0.023 °C - (0.0036% of R)
0.0064 °C

0.0064 °C - (0.0043% of |R|)
0.007 °C


R 0
R 0
0.007 °C + (0.003% of IRI)
0.0005 mV
0.0084 ohms
0.0001 mA
0.0001 mA

R0


Type K

Type N

Type R, Type S



Type T, DIN Type U


GOST Type L


Millivolt
2- and 3-wire Ohm
4–20 mA (Rosemount)
4-20 mA (NAMUR)
R 1000
0.032 °C - (0.0025% of (R - 300))

Type J, DIN Type L



Type E
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA









R 0
R0
R 0
All
R  200
R 200
R0
NA
NA
NA
NA
(1) Change in ambient is in reference to the calibration temperature of the transmitter (20 °C (68 °F) typical from the factory).
Ambient Temperature Notes
Examples:
When using a Pt 100 ( = 0.00385) sensor input at 30 °C ambient temperature:

Ambient Temperature Effects: 0.003 °C x (30 - 20) = 0.03 °C

Worst Case Error: Sensor Accuracy + Ambient Temperature Effects = 0.30 °C + 0.03 °C = 0.33 °C

Total Probable Error
0.30 2 + 0.03 2 = 0.30C
11
February 2013
Rosemount 848T Family
FOUNDATION
fieldbus
Product certifications
Hazardous locations certifications
North American certifications
Temperature Code:
T4 (Tamb = –40 to 60 °C)
Factory Mutual (FM) approvals
I5
Non-incendive for use in Class I, Division 2, Groups A, B,
C, D (suitable for use with non-incendive field wiring);
when installed in accordance with Rosemount Drawing
00848-4404.
Intrinsically Safe and Non-Incendive
Intrinsically Safe for use in Class I, Division 1, Groups
A, B, C, D; when installed per Rosemount drawing
00848-4404.
Temperature Code:
T4A (Tamb = –40 to 85 °C)
T5 (Tamb = –40 to 70 °C)
Temperature Code:
T4 (Tamb = –40 to 60 °C)
Non-Incendive for use in Class I, Division 2, Groups A, B,
C, D (suitable for use with Non-Incendive field wiring)
when installed in accordance with Rosemount Drawing
00848-4404.
Table 7. Entity Parameters
Power/Bus
Vmax = 17.5 V
Imax = 380 mA
Pi = 5.32 W
Ci = 2.1 nF
Li = 0
Temperature Code:
T4A (Tamb = -40 to 85 °C)
T5 (Tamb = -40 to 70 °C)
Rosemount Enclosure Required.
Indoor Hazardous (Classified) Locations.
Table 5. FM Approved Entity Parameters
Power/Bus
(1) Entity parameters apply to entire device, not individual sensor channels.
VOC = 12.5 V
ISC= 4.8 mA
Po = 15 mW
CA = 1.2 F
LA = 1 H
N5
(1) Entity parameters apply to entire device, not individual sensor channel.
Sensor
(1)
VOC = 12.5 V
ISC = 4.8 mA
Po = 15 mW
CA = 1.2 F
LA = 1 H
(1) Entity parameters apply to entire device, not individual sensor channel.
Wiring
IE
12
FISCO (Fieldbus Intrinsically Safe Concept) Intrinsic
Safety
Intrinsically safe for use in Class I, Division 1, Groups A,
B, C, D; when installed in accordance with Rosemount
Drawing 00848-4404.
Dust Ignition-Proof
For use in Class II, III, Division 1, Groups E, F, G. Class I,
Division 2, Groups A, B, C, D;
Non-incendive for Class 1, Division 2, Groups A, B, C, D
when installed to Rosemount Control Drawing
00848-4404.
Rosemount Enclosure Required.
Valid with both S001 and S002 options.
Temperature Code:
T4A (Tamb = –40 to 85 °C)
T5 (Tamb = –40 to 70 °C)
Table 6. Entity Parameters for Non Incendive Field
Vmax = 42.4 V
Ci = 2.1nF
Li = 0
VOC = 12.5 V
ISC = 4.8 mA
Po = 15 mW
CA = 1.2 F
LA = 1 H
Sensor(1)
Vmax = 30 V
Imax = 300 mA
Pi = 1.3 W
Ci = 2.1 nF
Li = 0
Power/Bus
Sensor(1)
NK
Non-Incendive for use in Class I, Division 2, Groups A, B,
C, D (suitable for use with Non-Incendive field wiring)
when installed in accordance with Rosemount Drawing
00848-4404.
Temperature Code:
T4A (Tamb = -40 to 85 °C)
T5 (Tamb = -40 to 70 °C)
Rosemount Enclosure Required.
Indoor Hazardous (Classified) Locations.
Rosemount 848T Family
February 2013
Table 8. FM Approved Entity Parameters(1)
Power/Bus
Power/Bus
Vmax = 30 V
Imax = 300 mA
Ci = 2.1 nF
Li = 0
VOC = 12.5 V
ISC = 4.8 mA
Po = 15 mW
CA = 1.2 F
LA = 1 H
IF
FISCO (Intrinsically Safe)
For use in Class I, Division 1, Groups A, B, C, D; when
installed per Rosemount drawing 00848-4405.
Canadian Standards Association (CSA) approvals
Explosion-Proof and Dust Ignition-Proof
Class I, Division 1, Groups B, C, and D.
Temperature Code:
T3C (Tamb = –50 to 60 °C)
Class II, Division 1, Groups E, F, and G.
Class III
Must be installed in enclosure option JX3.
Install per drawing 00848-1041.
Conduit seal not required.
Suitable for Class I, Division 2, Groups A, B, C, D. Rated
42.4 VDC max. Not valid with S002 option.
Table 10. CSA Approved Entity Parameters
Power/Bus
Ui = 17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 2.1 nF
Li = 0
Suitable for use in Class I, Division 2, Groups A, B, C, D.
when installed per Rosemount drawing 00848-4405.
Temperature Code:
T3C = (– 50 Tamb  60 °C)
Must be installed in a suitable enclosure as determined
acceptable by the local inspection authority.
I6
Intrinsically Safe, Division 2
For use in Class I, Division 1, Groups A, B, C, D; when
installed per Rosemount drawing 00848-4405.
Temperature Code:
T3C (Tamb = –50 to 60 °C)
Suitable for Class I, Division 2, Groups A, B, C, D. Rated
42.4 VDC max. Not valid with S002 option.
VOC = 12.5 V
ISC = 4.8 mA
Po = 15 mW
CA = 1.2 F
LA = 1 H
(1) Entity parameters apply to entire device, not individual sensor
channels.
(1) Intrinsically safe and non-incendive parameters
E6
Sensor(1)
FOUNDATION
fieldbus
Vmax = 42.4 V
Ci = 2.1 F
Li = 0 H
Sensor
Table 9. CSA Approved Entity Parameters
Sensor(1)
VOC = 12.5 V
ISC = 4.8 mA
Po = 15 mW
Ca = 1.2 F
La = 1 H
(1) Entity parameters apply to entire device, not individual sensor
channels.
N6
Class I, Division 2
Suitable for use in Class I, Division 2, Groups A, B, C, D.
when installed per Rosemount drawing 00848-4405.
Temperature Code:
T3C = (–50 Ta  60 °C)
Must be installed in a suitable enclosure as determined
acceptable by the local inspection authority.
13
February 2013
Rosemount 848T Family
European certifications
2.) The apparatus will not meet the 500 V rms isolation
test required by Clause 6.4.12 in EN 60079-11:2007.
This must be taken into account when installing the
apparatus.
FOUNDATION
fieldbus
ATEX approvals
I1
Intrinsic Safety
Certification Number: Baseefa09ATEX0093X
ATEX Marking
II 1 G
Ex ia IIC T4 (Tamb = –50 to 60 °C)
1180
NE
Table 11. ATEX Approved Entity Parameters
Power/Bus
Sensor(1)
Ui = 30 V
Ii = 300 mA
Pi = 1.3 W
Ci = 0
Li = 0
Table 13. ATEX Approved Entity Parameters
Uo = 12.5 V
Io = 4.8 mA
Po = 15 mW
Ci = 1.2 F
Li = 1 H
(1) Entity parameters apply to entire device, not individual sensor channels.
Power/Bus
FISCO (Fieldbus Intrinsically Safe Concept) Intrinsic
Safety
Certificate Number: BASEEFA09ATEX0093X
ATEX Marking
II 1 G
Ex ia IIC T4 (Tamb = –50 to 60 °C)
1180
Table 12. ATEX Approved Entity Parameters
Power/Bus
Sensor
Ui = 17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 0
Li = 0
Uo = 12.5 V
Io = 4.8 mA
Po = 15 mW
Ci = 1.2 F
Li = 1 H
Special Conditions for Safe Use (x):
1.) This 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 Gohm. Light alloy or zirconium enclosures
must be protected from impact and friction when
installed.
14
Uo = 5 Vdc
Io = 2.5 mA
Co = 1000 F
Lo = 1 H
Special Conditions for Safe Use (x):
1.) Provisions shall be made, external to the apparatus
to prevent the rated voltage (42.4 Vdc) from being
exceeded by transient disturbances of more than 40%.
1.) This 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 Gohm. Light alloy or zirconium enclosures
must be protected from impact and friction when
installed.
2.) The apparatus will not meet the 500 Vrms isolation
test required by Clause 6.4.12 in EN 60079-11:2007.
This must be taken into account when installing the
apparatus.
Sensor
Ui = 42.4 Vdc
Ci = 0
Li = 0
Special Conditions for Safe Use (x):
IA
ATEX TYPE ‘n’ APPROVAL
Certification Number: BASEFFA09ATEX0095X
ATEX Marking
II 3 G
Ex nA nL IIC T5 (Tamb = –40 to 65 °C)
2.) The ambient temperature range of use shall be the
most restrictive of the apparatus, cable gland, or
blanking plug.
NOTE:
NE is valid with S001 Input Type ONLY
N1
ATEX Type n
Certification Number: Baseefa09ATEX0095X
ATEX Marking
II 3 G
Ex nL IIC T5 (Tamb = –40 to 65 °C)
Table 14. Entity Parameters
Power/Bus
Sensor
Ui = 42.4 Vdc
Ci = 0
Li = 0
Uo = 12.5 Vdc
Io = 4.8 mA
Po = 15 mW
Co = 1.2 F
Lo = 1 H
Special Conditions for Safe Use (x):
1.) Provisions shall be made, external to the apparatus,
to prevent the rated voltage of the apparatus supply is
not exceeded by transient disturbances of more than
40%
Rosemount 848T Family
2.) The electrical circuit is connected directly to earth;
this must be taken into account when installing the
apparatus.
ATEX Type n Component
Certification Number: Baseefa09ATEX0094U
ATEX Marking
II 3 G
Ex nA nL IIC T4 (Tamb = –50 to 85 °C)
Ex nA nL IIC T5 (Tamb = –50 to 70 °C)
IECEx Certifications
I7
IECEx Intrinsic Safety
Certificate No.: IECExBAS09.0030X
Ex ia IIC T4 (Tamb = –50 to 60 °C)
FOUNDATION
fieldbus
NC
February 2013
Table 15. IECEx Approved Entity Parameters
Power/Bus
Sensor
Ui = 30 V
Ii = 300 mA
Pi = 1.3 W
Ci = 2.1 F
Li = 0
Note:
NC IS VALID WITH S001 INPUT TYPE ONLY
Uo = 12.5 V
Io = 4.8 mA
Po = 15 mW
Ci = 1.2 F
Li = 1 H
Special Conditions of Safe Use (x):
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.
1.) The component must be housed in a suitable
certified enclosure that provides a degree of protection
of at least IP54 and meets the relevant material and
environmental requirements of EN 60079-0, and
EN-60079-15.
2.) The apparatus is not capable of withstanding the
500 V isolation test required by IEC 60079-11: 2006
clause 6.3.12. This must be taken into account when
installing the apparatus.
2.) Provisions shall be made, external to the apparatus,
to prevent the rated voltage (42.4 Vdc) being 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.
ND ATEX Dust Ignition Proof
Certification Number: BAS01ATEX1315X
ATEX Marking
II 1 D
T90C (Tamb = – 40 to 65 °C) IP66
IG
Table 16. IECEx Approved Entity Parameters
Power/Bus
Uo = 12.5 V
Io = 4.8 mA
Po = 15 mW
Ci = 1.2 F
Li = 1 H
Special Conditions of 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.
2.) Component approved Ex e cable entries must be
used which maintain the ingress protection of the
enclosure to at least IP66.
3.) Any unused cable entry holes must be filled with
component approved Ex e blanking plugs.
4.) The ambient temperature range of use shall be the
most restrictive of the apparatus, cable gland, or
blanking plug.
Sensor
Ui =17.5 V
Ii = 380 mA
Pi = 5.32 W
Ci = 2.1 F
Li = 0
Special Conditions for Safe Use (x):
1.) The user must ensure that the maximum rated
voltage and current (42.4 Vdc, 22 mA) are not
exceeded. All connections to other apparatus or
associated apparatus shall have control over this voltage
and current equivalent to a category “ib” circuit
according to EN 60079-11:2007.
IECEx FISCO
Certificate No.: IECExBAS09.0030X
Ex ia IIC T4 (Tamb = – 50 to 60 °C)
2.) The apparatus is not capable of withstanding the
500 V isolation test required by IEC 60079-11: 2006
clause 6.3.12. This must be taken into account when
installing the apparatus.
N7
IECEx Type n Approval
Certificate No.” IECExBAS09.0032X
Ex Na nL IIC T5 (Tamb = – 40 to 65 °C)
15
FOUNDATION
fieldbus
February 2013
Rosemount 848T Family
Note:
N7 is valid with S001 and S002 Input Types
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%.
Table 17. IECEx Approved Entity Parameters
3.) The electrical circuit is connected directly to earth;
this must be taken into account when installing the
component.
Power/Bus
Sensor
Ui = 42.4 Vdc
Ci = 0
Li = 0
Uo = 5 Vdc
Io = 2.5 mA
Co = 1000 F
Lo = 1000 mH
1.) The component must be housed 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 & 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
component.
IECEx Type n COMPONENT Approval
Certification Number: IECExBAS09.0031U
EEx nA nL IIC T4 (Tamb = -50 to 85 °C)
EEx nA nL IIC T5 (Tamb = -50 to 70 °C)
NOTE:
NJ is valid with S001 and S002 Input Types
Table 18. IECEx Approved Entity Parameters
Power/Bus
Ui = 42.4 Vdc
Ci = 0
Li = 0
Sensor
Uo = 5 Vdc
Io = 2.5 mA
Co = 1000 F
Lo = 1000 mH
Special Conditions of Safe Use:
1.) The component must be housed 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 & IEC 60079-15: 2005.
16
I3
Intrinsic Safety
Ex ia IIC T4
Certification Number: GYJ111365X
Special conditions of safe use:
Special Conditions of Safe Use:
NJ
China (NEPSI) certifications
1.) Only when temperature transmitter is installed in IP
20(GB4208-2008) housing, it could be used in hazardous
location. The metallic housing should observe the
requirements of GB3836.1-2000 Clause 8. The
non-metallic housing should observe the requirements
of GB3836.1-2000 Clause 7.3. This apparatus is not
capable of withstanding the 500V rms insulation test
required by Clause 6.4.12 of GB3836.4-2000.
2.) The ambient temperature range is:
Output
T code
F
Ambient temperature
T4
-50 °C < Ta < + 60 °C
3.) Parameters:
Terminals of power/loop (1-2):
Output
Maximu
m
Output
Voltage:
Uo (V)
Maximum
Output
Current:
Io (mA)
Maximum
Output
Power:
Po (mW)
F
F(FISCO)
30
17.5
300
380
1.3
5.32
Maximum
external
parameters
Co (F)
2.1
2.1
Note
Non-FISCO parameters listed above must be derived
from a linear supply with a resistance limited output.
Lo (H)
0
0
Rosemount 848T Family
February 2013
Terminals of sensor:
Output
F
Terminals
Maximum Maximum Maximum Maximum
Output
Output
Output
external
Voltage:
Current:
Power: parameters
Uo (V)
Io (mA)
Po (mW)
:
1-8
12.5
4.8
15
Co
(F)
Lo
(H)
1.2
1
WirelessHART
1.) The product complies to the requirements for FISCO
field devices specified in IEC60079-27: 2008. For the
connection of an intrinsically safe circuit in accordance
FISCO model, FISCO parameters of this product are as
above.
2.) 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.
3.) The cables between this product and associated
apparatus should be shielded cables (the cables must
have insulated shield). The shielded cable has to be
grounded reliably in non-hazardous area.
4.) End users are not permitted to change any
component’s insides, but to settle the problem, in
conjunction with manufacturer to avoid damage to the
product.
5.) During installation, use and maintenance of this
product, observe 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 electric device for explosion atmospheres and fire
hazard electrical equipment installation engineering.”
Japanese certifications
I4
TISS Intrinsic Safety FISCO Type ‘1a’
Ex ia IIC T4
Certification Number: TC19713
H4
TISS Intrinsic Safety FISCO Type ‘1b’
Ex ia IIB T4
Certification Number: TC19714
17
February 2013
Rosemount 848T Family
Dimensional drawings
Junction Boxes with no entries (option codes JP1, JA1, and JS1) – external dimensions are the same as those outlined for the other
junction box materials in this section.
Rosemount 848T
WirelessHART
Top View
Security Switch
Side View
3-D View
1.7
(43)
Simulation Switch
6.7
(170)
3.7
(93)
Removable Wiring
Connection
Dimensions are in inches (millimeters)
Aluminum/Plastic Junction Box—Cable Gland (option codes JA2 and JP2)
Top View
3-D View
10.24 (260)
Ground Screw
Side View
Front View
1.57 (40)
2.28 (58)
1.10 (28)
7.84 (199.2)
2.44 (62)
6.30 (160)
4.41 (112)
1.73 (44)
3.78 (96)
Dimensions are in inches (millimeters)
18
Rosemount 848T Family
February 2013
Stainless Steel Junction Box—Cable Gland (option code JS2)
Top View
3-D View
9.91 (231)
7.7 (196)
WirelessHART
Ground Screw
Side View
Front View
9.14 (232.2)
1.8 (46)
1.1 (28)
7.72 (196)
6.61 (168)
1.73 (44)
4.0 (102)
2.4 (62)
1.8 (47)
1.2 (30)
Dimensions are in inches (millimeters)
Aluminum/Plastic Junction Box—Conduit Entry (option codes JA3 and JP3)
Top View
3-D View
10.2 (260)
Front View
Side View
157 (40)
2.44 (62)
10.2 (260)
3.5 (89)
1.7 (42)
Five Plugged 0.86-in. diameter
holes suitable for installing 1/2-in.
NPT fittings
Dimensions are in inches (millimeters)
19
February 2013
Rosemount 848T Family
Stainless Steel Junction Box—Conduit Entry (option code JS3)
Top View
3-D View
9.1 (231)
7.7 (196)
WirelessHART
Ground Screw
Front View
Side View
1.4 (35)
1.1 (27)
2.8 (70)
1.2 (30)
4.0 (102)
2.4 (62)
1.6 (42)
1.8 (4.7)
0.06 (1.5)
Five Plugged 0.86-in. diameter holes suitable for installing 1/2-in. NPT
Dimensions are in inches (millimeters)
Mounting options
Aluminum/Plastic Junction Box
(styles JA and JP)
Front View
5.1
10.2
(260)
Side View
Stainless Steel Junction Box
(style JS)
Front View
Side View
4.7
(119)
6.6 (167) fully
assembled
7.5 (190) fully
assembled
Dimensions are in inches (millimeters)
Aluminum/Plastic Junction Box Mounted on a Vertical Pipe
20
Stainless Steel Junction Box
Mounted on a Vertical Pipe
Rosemount 848T Family
February 2013
The Rosemount 848T Wireless Temperature Transmitter
The Rosemount 848T is the premier choice for Wireless High Density measurements.
Four independently configurable inputs are transmitted through WirelessHART. Costs
per point are dramatically reduced through the use of smart wireless networks, with
the same reliability and security of wired solutions. Additionally, the field hardened
enclosure is suitable for installation in IS areas. Capabilities include:
Four independently configurable inputs, including:

2-, 3-, and 4-wire RTDs

Thermocouples

0-1000 mV and 0-10 V

2-, 3-, and 4-wire ohm

4-20mA

Intrinsically safe, long lasting Power Module, which utilizes Emerson’s
SmartPower™ Technology

Configurable high and low alerts to improve process performance

Easy to use Device Dashboard, used to configure, monitor, and troubleshoot the
848T Wireless
WirelessHART

Table 19. Rosemount 848T Wireless Transmitter Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
Model
Product Description
848T
High Density Temperature Measurement Family
Transmitter Output
Standard
X
Standard
Wireless
★
Product Certifications
Standard
I1
I5
I6
I7
N5
N6
NA
Standard
ATEX Intrinsic Safety
FM Intrinsically Safe
CSA Intrinsically Safe
IECEx Intrinsic Safety
FM Class I, Division 2, and Dust Ignition-proof (enclosure required)
CSA Class I, Division 2
No Approval
★
★
★
★
★
★
★
Input Type
Standard
S001
S002(1)
S003
S004(2)
Standard
RTD, Thermocouple, mV, Ohm Inputs
RTD, Thermocouple, mV, Ohm and 4–20 mA Inputs
RTD, Thermocouple, Ohm, mV, and 2 - dual channel voltage adapters
RTD, Thermocouple, Ohm, mV, and 1 - dual channel voltage adapters
★
★
★
★
Options (Include with selected model number)
Wireless Burst Rate, Operating Frequency and Protocol
Standard
WA3(3)
Standard
User Configurable Burst Rate, 2.4 GHz DSSS WirelessHART
★
21
February 2013
Rosemount 848T Family
Table 19. Rosemount 848T Wireless Transmitter Ordering Table
★ The Standard offering represents the most common options. The starred options (★) should be selected for best delivery.
__The Expanded offering is subject to additional delivery lead time.
Omnidirectional Wireless Antenna and SmartPower
WK1(4)
WM1(4)
Long Range, Integral Antenna, Power Module Adapter, Intrinsically Safe (Power Module separate)
Extended Range, Integral Antenna, Power Module Adapter, Intrinsically Safe (Power Module separate)
★
★
Mounting Bracket
Standard
B6
Standard
Mounting Bracket for 2-in. pipe mounting - SST bracket and bolts
★
WirelessHART
Enclosure Options
Standard
HA1(5)
HA2(5)
Standard
Aluminum with Cable Glands (5 x 1/2-in. NPT for 7.5 - 11.9 mm)
Aluminum with Conduit Entries (5 plugged holes, suitable for installing 1/2-in. NPT fittings)
★
★
Software Configuration
Standard
C1
Standard
Custom Configuration of Date, Descriptor, Message and Wireless Parameters (Required CDS with order)
★
Line Filter
Standard
F5
Standard
50 Hz Line Voltage Filter
★
5-Point Calibration
Expanded
C4
5-Point Calibration (Requires Q4 option code to generate a Calibration Certificate)
Calibration Certificate
Standard
Q4
Standard
Calibration Certificate (3-Point Calibration)
Typical Model Number: 848T X I5 S001 WA3 WK1 B6 HA1
(1) Only available with product certifications NA and N5. Stable resistors included.
(2) Dual channel voltage adapter will be installed on channels 1 and 2.
(3) Required for wireless.
(4) WK1 or WM1 required for wireless
(5) HA1 or HA2 required for wireless.
22
★
Rosemount 848T Family
February 2013
WirelessHART... the industry standard
Self-Organizing, Adaptive Mesh Routing
No wireless expertise required, devices automatically find
the best communication paths

Network continuously monitors paths for degradation and
repairs itself

Adaptive behavior provides reliable, hands-off operation
and simplifies network deployments, expansion and
reconfiguration

Supports both star and mesh topologies
WirelessHART

Industry Standard Radio with Channel Hopping

Standard IEEE 802.15.4 radios

2.4 GHz ISM band sliced into 16 radio-channels

Continually “hop” across channels to avoid interference
and increase reliability

Frequency hopping spread spectrum (FHSS) technology
delivers high reliability in challenging radio environment
Self-Healing Network

If an obstruction is introduced into the mesh network,
devices will automatically find the best alternate
communication path

This allows the network to instantly change to the new
path without any loss in data
Seamless Integration to Existing Hosts

Transparent and seamless integration

Same control system applications

Gateways connect using industry protocols
23
February 2013
Rosemount 848T Family
Specifications
Functional specifications
Physical specifications
Input
Electrical connections
Four independently configurable input channels that
supports Thermocouple, RTD, mV, 0-10 V, ohm, and 4–20
mA, input types. See “Accuracy” on page 26 for sensor
options.
Power Module
The Emerson SmartPower™ Power Module is field
replaceable, featuring keyed connections that eliminate the
risk of incorrect installation. The Power Module is an
Intrisically Safe solution, containing the Lithium-thionyl
chloride with a polybutadine terephthalate (PBT) enclosure.
The 848T Wireless has a Power Module life time rating of 6
years with a one-minute update rate, at reference
conditions.(1)
Sensor Terminals
Sensor terminals permanently fixed to terminal block
WirelessHART
Output
IEC 62591 (WirelessHART), 2.4 GHz DSSS.
Ambient temperature limits
–40 to 85 °C (–40 to 185 °F)
Humidity limits
0–99% non-condensing relative humidity
Field communicator connections
Update rate
User selectable, 4 sec to 60 min.
Accuracy (Pt 100 @ reference condition: 20 °C)
±0.30 °C (±0.54 °F) For the complete list see “Accuracy” on
page 26.
Isolation
Isolation between all sensor channels is rated to 10 Vdc over
all operating conditions. No damage will occur to the device
with up to 250 Vdc between any sensor channels.
Alerts
Message sent when open or short sensor is detected.
ElectroMagnetic Compatibility (EMC)

Meets the criteria under European Union Directive
2004/108/EC

Meets all relevant requirements of EN 61326.
Transmitter stability
Communication Terminals
Clips permanently fixed to terminal block
Materials of construction
Enclosure
Housing - Low-copper aluminum
Paint - Polyurethane
Cover O-ring - Silicone
Terminal Block and Power Module
PBT
Antenna
PBT/Polycarbonate (PC) integrated omnidirectional antenna
Mounting
Transmitter can be panel mounted, or be mounted onto a
2-in. pipe stand (with option code B6). Sensors must be
remotely mounted, as transmitter conduit entries are not
designed for direct sensor mounting.
Weight

±0.15% of reading or 0.15 °C (0.27 °F), whichever is greater,
for 2 years for RTDs.
848T Wireless - 4.75 lbs. (2.15 kg)

±0.15% of reading or 0.15 °C (0.27 °F), whichever is greater,
for 1 year for thermocouples.
Housing option codes HA1 or HA2 are Type 4x and IP66.
Enclosure ratings (848T Wireless)
Self calibration
The analog-to-digital measurement circuitry automatically
self-calibrates for each temperature update by comparing the
dynamic measurement to extremely stable and accurate
internal reference elements.
Vibration effect
Tested to high pipeline vibration specifications per IEC
60770-1 1999 with no effect on performance.
(1)
Reference conditions are 68 °F (20 °C), and routing data for three
additional network devices.
NOTE: Continuous exposure to ambient temperature limits (-40 °F
or 185 °F) (-40 °C or 85 °C) may reduce specified life to less than 20
percent.
24
Rosemount 848T Family
February 2013
Sensor connections
848T Wireless Sensor Connections Diagram
1
2
3
4
5
1
2
3
4
5
2-wire RTD and WirelessHART
-
4-wire RTD and 1
2
3
4
5
+
1
2
3
4
5
3-wire RTD and Thermocouple and mV
Optional voltage adapter
The Rosemount 848T Wireless voltage adapter allows voltage
measurement from 0-10 volts. For this capability, one or two
adapters are required. Each adapter accommodates 2 voltage
inputs, and can be installed interchangeably on inputs 1 & 2
or 3 & 4.
The divider is ordered using option codes S003 or S004, and
can also be purchased as a spare part.
25
February 2013
Rosemount 848T Family
Accuracy
Table 20. Input Options/Accuracy
Accuracy Over
Range(s)
Input Ranges
Sensor Option
Sensor Reference
°C
°F
°C
°F
–200 to 550
–200 to 550
–200 to 850
–200 to 645
–200 to 850
–200 to 645
–200 to 850
–200 to 300
–70 to 300
–328 to 1022
–328 to 1022
–328 to 1562
–328 to 1193
–328 to 1562
–328 to 1193
–328 to 1562
–328 to 572
–94 to 572
± 0.57
± 0.28
± 0.30
± 0.30
± 0.54
± 0.54
± 0.38
± 0.40
± 0.30
± 1.03
± 0.50
± 0.54
± 0.54
± 0.98
± 0.98
± 0.68
± 0.72
± 0.54
–50 to 250
–58 to 482
± 3.20
± 5.76
-185 to 200
-185 to 200
-50 to 200
-50 to 200
-301 to 392
-301 to 392
-58 to 392
-58 to 392
± 0.48
± 0.96
± 0.48
± 0.96
±0.86
±1.73
±0.86
±1.73
100 to 300
301 to 1820
–200 to 1000
–180 to 760
–180 to 1372
–200 to 1300
0 to 1768
0 to 1768
–200 to 400
–200 to 900
–200 to 600
0 to 2000
–200 to 800
-50 to 85
212 to 572
573 to 3308
–328 to 1832
–292 to 1400
–292 to 2502
–328 to 2372
32 to 3214
32 to 3214
–328 to 752
–328 to 1652
–328 to 1112
32 to 3632
–328 to 1472
-58 to 185
± 6.00
± 1.54
± 0.40
± 0.70
± 1.00
± 1.00
± 1.50
± 1.40
± 0.70
± 0.70
± 0.70
± 1.60
±0.71
±3.50
± 10.80
± 2.78
± 0.72
± 1.26
± 1.80
± 1.80
± 2.70
± 2.52
± 1.26
± 1.26
± 1.26
± 2.88
±1.28
±6.30
WirelessHART
2-, 3-, and 4-Wire RTDs
Pt 50 ( = 0.00391)
Pt 100 ( = 0.00391)
Pt 100 ( = 0.00385)
Pt 100 ( = 0.003916)
Pt 200 ( = 0.00385)
PT 200 ( = 0.003916)
Pt 500 ( = 0.00385)
Pt 1000 ( = 0.00385)
Ni 120
Cu 10
Cu 100 (a=428)
Cu 50 (a=428)
Cu 100 (a=426)
Cu 50 (a=426)
GOST 6651-94
GOST 6651-94
IEC 751; = 0.00385, 1995
JIS 1604, 1981
IEC 751; = 0.00385, 1995
JIS 1604, 1981 ( = 0.003916)
IEC 751; = 0.00385, 1995
IEC 751; = 0.00385, 1995
Edison Curve No. 7
Edison Copper Winding No.
15
GOST 6651-94
GOST 6651-94
GOST 6651-94
GOST 6651-94
Thermocouples—Cold Junction Adds + 0.5 °C to Listed Accuracy
NIST Type B (Accuracy varies
according to input range)
NIST Type E
NIST Type J
NIST Type K
NIST Type N
NIST Type R
NIST Type S
NIST Type T
DIN L
DIN U
w5Re/W26Re
Type L
Terminal Temperature
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
NIST Monograph 175
DIN 43710
DIN 43710
ASTME 988-96
GOST R.8.585-2001
Input Units
Ohm Input
Millivolt Input
1000 mV input
0 to 2000 ohms
-10 to 100 mV
-10 to 1000 mV
1000 mV input
0 to 10 V
4–20 mA (Rosemount)(1)
4–20 mA (NAMUR)1
4–20 mA
4–20 mA
±0.90 ohms
±0.05 mV
±1.0 mV
greater of ±10 mV or
0.2% of span
±0.01 mA
±0.01 mA
(1) Requires the S002 option code.
Analog sensors 4–20mA
Two types of alarm levels are available with 4-20 mA sensors
on the 848T. These types must be ordered with the S002
option code complete with an analog connector kit. The
alarm levels, accuracy for each type are listed in Table 3.
26
Table 21. Analog Sensors
Sensor Option
4–20 mA (Rosemount
Standard)
4–20 mA (NAMUR)
Alarm Levels
Accuracy
3.9 to 20.8 mA
± 0.01 mA
3.8 to 20.5 mA
± 0.01 mA
February 2013
Rosemount 848T Family
Ambient temperature effect
Transmitters may be installed in locations where the ambient temperature is between –40 and 85 °C (–40 and 185 °F).
Table 22. Ambient Temperature Effects
NIST Type
Accuracy per 1.0 °C (1.8 °F) Change in Ambient
Temperature(1)
Temperature Range (°C)
RTD
Pt 50 ( = 0.003910)
Pt 100 ( = 0.00391)
Pt 100 ( = 0.00385)
Pt 100 ( = 0.003916)
Pt 200 ( = 0.00385)
PT 200 ( = 0.003916)
Cu 10
Pt 500
Pt 1000
Cu 100 (a=428)
Cu 50 (a=428)
Cu 100 (a=426)
Cu 50 (a=426)
Ni 120














0.004 °C (0.0072 °F)
0.002 °C (0.0036 °F)
0.003 °C (0.0054 °F)
0.003 °C (0.0054 °F)
0.004 °C (0.0072 °F)
0.004 °C (0.0072 °F)
0.03 °C (0.054 °F)
0.003 °C (0.0054 °F)
0.003 °C (0.0054 °F)
0.002 °C (0.0036 °F)
0.004 °C (.0072 °F)
0.002 °C (0.0036 °F)
0.004 °C (.0072 °F)
0.003 °C (0.0054 °F)
Thermocouple (R = the value of the reading)
 0.014 °C
Type B
Type E
Type J, Din Type L
Type K
0.032 °C - (0.0025% of (R - 300))

300  R < 1000

0.054 °C - (0.011% of (R - 100))
0.005 °C + (0.00043% of R)
0.0054 °C + (0.00029% of R)

100  R < 300
All
R0
0.0054 °C + (0.0025% of |R|)
0.0061 °C + (0.00054% of R)

0.0061 °C + (0.0025% of |R|)
0.0068 °C + (0.00036% of R)
0.016 °C

0.023 °C - (0.0036% of R)
0.0064 °C

0.0064 °C - (0.0043% of |R|)
0.007 °C



R 0
R 0

0.007 °C + (0.003% of IRI)

R0

0.0084 ohms
0.0005 mV
0.005 mV
0.0001 mA
0.0001 mA






Type R, Type S


GOST Type L
NA
 R 1000

Type N
Type T, DIN Type U
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA








R 0
R0
R 0
All
R  200
R 200
R0
Input Units
Ohm input
100 mV Input
1000 mV Input
4–20 mA (Rosemount)
4–20 mA (NAMUR)




NA
NA
NA
NA
NA
(1) Change in ambient is in reference to the calibration temperature of the transmitter (20 °C (68 °F) typical from the factory).
Ambient temperature notes
Examples:
When using a Pt 100 ( = 0.00385) sensor input at 30 °C ambient temperature, temperature effects would be:

Ambient Temperature Effects: 0.003 °C x (30 - 20) = 0.03 °C

Worst Case Error: Sensor Accuracy + Ambient Temperature Effects = 0.30 °C + 0.03 °C = 0.33 °C

Total Probable Error
www.rosemount.com
0.30 2 + 0.03 2 = 0.30C
27
Rosemount 848T Family
February 2013
Product certifications
Approved Manufacturing Locations
Rosemount Inc. – Chanhassen, Minnesota, USA
Emerson Process Management GmbH & Co. - Karlstein,
Germany
Emerson Process Management Asia Pacific Private Limited Singapore
Hazardous Locations certificates
North American Certifications
Factory Mutual (FM) Approvals
I5
FM Intrinsic Safety and Non-incendive
Intrinsically Safe for Class I, Division 1, Groups A, B, and C.
Zone Marking: Class I, Zone 0, AEx ia llC
Temperature Codes T4 (Tamb = -50 to 70 °C)
Non-incendive for Class I, Division 2, Groups A, B, C, and D.
Intrinsically Safe and non-incendive when installed in
accordance with Rosemount drawing 00849-1000.
For use with Rosemount power module P/N
753-9220-0001 only.
Enclosure Type 4X / IP66
N5
FM Class 1, Division 2, and Dust
Non-Incendive for Class I, Division 2, Groups A, B, C, and D.
Dust Ignition-proof for Class II/III, Division 1, Groups E, F,
and G.
Ambient Temperature Limits -50 to 85 °C
Non-incendive when installed in accordance with
Rosemount drawing 00849-1000.
For use with Rosemount power module P/N
753-9220-0001 only.
Enclosure Type 4X / IP66
European Union Directive Information
The EC declaration of conformity for all applicable European
directives for this product can be found at
www.rosemount.com. A hard copy may be obtained by
contacting an Emerson Process Management representative.
ATEX Directive (94/9/EC)
Emerson Process Management complies with the
ATEX Directive.
Electro Magnetic Compatibility (EMC) (2004/108/EC)
EN 61326-1:2006
EN 61326-2-3:2006
Radio and Telecommunications Terminal Equipment
Directive (R&TTE) (1999/5/EC)
Emerson Process Management complies with the
R&TTE Directive.
Telecommunication compliance
CSA - Canadian Standards Association
All wireless devices require certification to ensure that they
adhere to regulations regarding the use of the RF spectrum.
Nearly every country requires this type of product certification.
Emerson is working with governmental agencies around the
world to supply fully compliant products and remove the risk of
violating country directives or laws governing wireless device
usage.
I6
CSA Intrinsic Safety
Intrinsically Safe for Class I, Division 1, Groups A, B, C, and
D.
Temp Code T3C
Non-incendive for Class I, Division 2, Groups A, B, C, and D.
Enclosure Type 4X / IP66
For use with Rosemount power module P/N
753-9220-0001 only.
Intrinsically Safe and non-incendive when installed in
accordance with Rosemount drawing 00849-1016.
N6
CSA Class 1, Division 2
Non-Incendive for Class I, Division 2, Groups A, B, C, and D.
Enclosure Type 4X / IP66.
For use with Rosemount power module P/N
753-9220-0001 only.
Non-incendive when installed per Rosemount drawing
00849-1016.
FCC and IC
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.
Ordinary Location Certification for FM
As standard, the transmitter has been examined and tested to
determine that the design meets basic electrical, mechanical,
and fire protection requirements by FM, a nationally recognized
testing laboratory (NRTL) as accredited by the Federal
Occupational Safety and Health Administration (OSHA).
28
www.rosemount.com
February 2013
European certifications
I1 ATEX Intrinsic Safety
Certificate No.: Baseefa09ATEX0022X
II 1G
Ex ia IIC T5 (Ta = -60 °C to 40 °C)
Ex ia IIC T4 (Ta = -60 °C to 70 °C)
IP66
For use with Rosemount power module P/N 753-9220-0001
only.
1180
Rosemount 848T Family
Special Conditions for safe use (X):
1.) The surface resistivity of the antenna is greater than
1GÙ . To avoid electrostatic charge build-up, it must not be
rubbed or cleaned with solvents or a dry cloth.
2.) The power module may be replaced in a hazardous
area. The power module has surface resistivity greater
than 1GÙ 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.
Special Conditions for safe use (X):
1.) The surface resistivity of the antenna is greater than
1GÙ . To avoid electrostatic charge build-up, it must not be
rubbed or cleaned with solvents or a dry cloth.
2.) The power module may be replaced in a hazardous
area. The power module has surface resistivity greater
than 1GÙ 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.
Table 23. Sensor Parameters
Sensor
Uo = 6.6 V
Io = 3.2 mA
Po = 5.3 mW
Co = 22 uF
Lo = 1 H
IECEx certifications
I7 IECEx Intrinsic Safety
Certificate No.: IECEx BAS 09.0004X
Ex ia IIC T6 (Tamb = -60 °C to 50 °C)
Ex ia IIC T5 (Tamb = -60 °C to 75 °C)
IP66
For use with Rosemount power module P/N 753-9220-0001
only.
Table 24. Sensor Parameters
Sensor
Uo = 6.6 V
Io = 3.2 mA
Po = 5.3 mW
Co = 22 uF
Lo = 1 H
www.rosemount.com
29
Rosemount 848T Family
February 2013
Dimensional drawings
Rosemount 848T Wireless Dimensional Drawings
5.55
(141,1)
2.20
(55,8)
7.0
(177,8)
3.00
(76,3)
6.38
(162)
10.22
(259,7)
6.81
(173)
3.46
(87,8)
3.978
(101)
Dimensions are in inches (millimeters)
30
www.rosemount.com
February 2013
www.rosemount.com
Rosemount 848T Family
31
Rosemount 848T Family
Product Data Sheet
00813-0100-4697 Rev LB
February 2013
Emerson Process Management
Rosemount Inc.
8200 Market Boulevard
Chanhassen, MN 55317 USA
T (U.S.) 1-800-999-9307
T (International) (952) 906-8888
F (952) 906-8889
www.rosemount.com
Emerson Process Management
Blegistrasse 23
P.O. Box 1046
CH 6341 Baar
Switzerland
T +41 (0) 41 768 6111
F +41 (0) 41 768 6300
www.rosemount.com
Emerson Process Management
Asia Pacific Pte Ltd
1 Pandan Crescent
Signapore 128461
T +65 6777 8211
F +65 6777 0947
Service Support Hotline: +65 6770 8711
Emerson Process Management
Latin America
1300 Concord Terrace, Suite 400
Sunrise Florida 33323 USA
Tel + 1 954 846 5030
www.rosemount.com
Email: Enquiries@AP.EmersonProcess.com
www.rosemount.com
Standard Terms and Conditions of Sale can be found at www.rosemount.com\terms_of_sale
The Emerson logo is a trade mark and service mark of Emerson Electric Co.
Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.
PlantWeb is a registered trademark of one of the Emerson Process Management group of
companies.
HART and WirelessHART are registered trademarks of the HART Communication Foundation
Modbus is a trademark of Modicon, Inc.
All other marks are the property of their respective owners.
© 2012 Rosemount Inc. All rights reserved.