Emerson | H-Wave-SS | Rosemount 3308 Series Wireless Guided Wave Radar, 3308A

Product Data Sheet
July 2014
00813-0100-4308, Rev BA
Rosemount 3308 Series
Wireless Guided Wave Radar, 3308A

World’s first true wireless Guided Wave Radar
based on field proven, market leading
technologies

Accurate, direct level and interface
measurements virtually unaffected by process
conditions

Fast and simple commissioning with
self-organizing wireless network, intuitive user
interface and cut-to-fit probes

Minimized maintenance with no wires, no
moving parts, no re-calibration

Reduced number of field trips with long
battery life and advanced diagnostics for
better process insight
July 2014
Rosemount 3308 Series
Introduction
Guided wave radar
Reference pulse
Product level
Interface level
The Rosemount 3308 Series is the first true wireless level
transmitter that is based on the Time Domain Reflectometry
(TDR) principle. Low power nano-second-pulses are guided
along a probe submerged in the process media. When a pulse
reaches the surface of the material it is measuring, part of the
energy is reflected back to the transmitter, and the time
difference between the generated and reflected pulse is
converted into a distance from which the total level or interface
level is calculated (see left).
The reflectivity of the product is a key parameter for
measurement performance. A high dielectric constant of the
media gives better reflection and a longer measuring range.
Thanks to innovative technologies, inherited from market
leading Rosemount guided wave radars 3300 and 5300 Series,
Rosemount 3308 Series enables reliable measurements
combined with long battery life.
Emerson Smart Wireless
Emerson Smart Wireless is a self-organizing network solution.
Wireless field instruments send data to a Gateway, directly or
routed through any of the wireless devices in the network.
Multiple communication paths are managed and analyzed in
parallel to assure optimal communication and sustained
network reliability even if obstructions are introduced.
Gateways interface with existing host systems using industry
standard protocols, and native integration into DeltaV and
Ovation is transparent and seamless.
Interference from other radios, WiFi, and EMC sources is avoided
through Time Synchronized Channel Hopping and Direct
Sequence Spread Spectrum (DSSS). Also, a layered security
implementing industry standard Encryption, Authentication,
Verification, Anti-Jamming, and Key Management ensures that
data transmissions are secure and received only by the Gateway.
The Rosemount 3308 Series joins the Emerson Wireless
portfolio, whose wireless network experience totals billions of
operating hours, hundreds of thousands field devices, and tens
of thousands of networks around the world.
Contents
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2
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July 2014
Rosemount 3308 Series
Application Examples
The Rosemount 3308 Series transmitter is suited for aggregate (total) level measurements on a wide range of liquids, semi-liquids,
and liquid/liquid interfaces.
Moreover, the reliable and accurate guided wave radar technology offers a versatile solution that is virtually unaffected by process
conditions such as temperature, pressure, vapor gas mixtures, density, turbulence, bubbling/boiling, varying dielectric media, pH,
and viscosity.
Production, storage, and buffer tanks
The Rosemount 3308 Series transmitter is ideal for production and
shorter storage or buffer tanks that contain oil, gas condensate,
water, or chemicals.
Low pressure separators
The Rosemount 3308 Series transmitter can measure both level and
interface level in for example separator applications.
Oil
Oil
Water
Waste tanks and sump pits
The Rosemount 3308 Series transmitter is also a good choice for
waste tanks and underground tanks, such as sump pits.
Chamber applications
The Rosemount 3308 Series transmitter is a good choice for both
chamber and pipe installations.
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July 2014
Rosemount 3308 Series
Ordering Information
Rosemount 3308 Series Guided Wave Radar Level transmitters are versatile and easy-to-use with
field proven, market leading technologies. Characteristics include:
•
•
•
•
Intrinsically Safe
Long battery life
IEC 62591 (WirelessHART®) Communication
Compatible with AMS® Device Manager and AMS Wireless Configurator packages for easy
commissioning and troubleshooting
Additional Information
Specifications: page 10
Interface Measurement: page 13
Mechanical Considerations: page 22
Chamber / Pipe Installations: page 23
Certifications: page 26
Dimensional Drawings: page 29
Specification and selection of product materials, options, or components must be made by the purchaser of the equipment.
See page 19 for more information on Material Selection.
Table 1. Rosemount 3308 Series Level and/or Interface Measurements in Liquids Ordering Information
The starred options (★) 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
3308A
Guided Wave Radar Level Transmitter
★
Standard
★
Profile
S
Signal output (see page 10 for details)
X
Wireless
★
Measurement type (see page 13)
2
Level and Interface Transmitter
1
Level or Interface Transmitter (Interface available for fully submerged probe)
★
Housing
D1
Wireless Dual Compartment Housing, Aluminum (with plugged ½-14 NPT conduits)
★
E1
Wireless Dual Compartment Housing, Stainless steel (with plugged ½-14 NPT conduits)
★
Product certifications (see page 26-28)
I1
ATEX Intrinsic Safety
★
I5
FM Intrinsically Safe
★
I6
Canadian Intrinsically Safe
★
I7
IECEx Intrinsic Safety
★
EM
Technical Regulations Customs Union (EAC) Flameproof (consult factory for details)
IM
Technical Regulations Customs Union (EAC) Intrinsic Safety (consult factory for details)
4
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July 2014
Rosemount 3308 Series
Table 1. Rosemount 3308 Series Level and/or Interface Measurements in Liquids Ordering Information
The starred options (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
KD
ATEX and Canadian Intrinsic Safety
KE
FM and Canadian Intrinsically Safe
KF
ATEX and FM Intrinsic Safety
NA
No Hazardous Locations Certifications
Operating temperature and pressure (see page 12)
S
★
- 15 psig (-1bar) to 580 psig (40 bar) @ 302 °F (150 °C)
Material of construction; process connection / probe
Probe type
1
316L SST (EN 1.4404)
All
7
PTFE covered probe and flange. With plate design.
4A and 5A
8
PTFE covered probe
4A and 5A
★
Sealing o-ring material (see Table 3 on page 13)
V
Viton® Fluoroelastomer
★
E
Ethylene Propylene (EPDM)
★
K
Kalrez® 6375 Perfluoroelastomer
★
B
Nitrile Butadiene (NBR)
★
Process connection size
Process connection type
5
1½ in.
Thread / Tri-Clamp™
★
2
2 in. / DN50 / 50A
NPT Thread / Flange / Tri-Clamp
★
3
3 in. / DN80 / 80A
Flange / Tri-Clamp
★
4
4in. / DN100 / 100A
Flange / Tri-Clamp
★
P
Proprietary Flanges
Proprietary Flange
★
1
1 in.
Thread
6
6 in. / DN150 / 150A
Flange
8
8 in. / DN200 / 200A
Flange
Process connection rating (see page 19 for dimensions)
NN
For use with non-flange process connection type
★
ASME rating
AA
ASME B16.5 Class 150 Flange
★
AB
ASME B16.5 Class 300 Flange
★
EN rating
DA
EN1092-1 PN16 Flange
★
DB
EN1092-1 PN40 Flange
★
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July 2014
Rosemount 3308 Series
Table 1. Rosemount 3308 Series Level and/or Interface Measurements in Liquids Ordering Information
The starred options (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
JIS rating
JA
JIS B2220 10K Flange
★
JB
JIS B2220 20K Flange
★
Proprietary
PF
★
Proprietary Flange
Process connection type (threads / flange faces / proprietary flanges / Tri-Clamp)
Thread
N
NPT thread
★
G
BSP (G) thread
★
Flange faces
F
Flat Face (FF) Flange, available for EN flanges
★
R
Raised Face (RF) Flange, available for ASME and JIS flanges
★
Proprietary flanges (see page 35 for dimensions)
M
Masoneilan-Proprietary, 316 SST Torque Tube Flange, 316L
★
P
Fisher-Proprietary, 316 SST, (for 249B and 259B cages) Torque Tube Flange, 316L
★
Q
Fisher-Proprietary, 316 SST, (for 249C cages) Torque Tube Flange, 316L
★
Tri-Clamp
C
Tri-Clamp
Probe type
Process connection type Probe lengths
3B
Coaxial, perforated. For level and interface
measurement.
Flange / 1 in., 1.5 in.,
2 in. Thread
Min.:1 ft. 4 in. (0.4 m)
Max.: 19 ft. 8 in. (6 m)
★
4A
Rigid Single Lead (d=0.3”/8mm)
Flange / 1 in., 1.5 in.,
2 in. Thread / Tri-Clamp
Min.:1 ft. 4 in. (0.4 m)(1)
Max.: 9 ft. 10 in. (3 m)
★
4B
Rigid Single Lead (d=0.5”/13mm)
Flange / 1.5 in., 2 in.
Thread / Tri-Clamp
Min.:1 ft. 4 in. (0.4 m)
Max.: 19 ft. 8 in. (6 m)
★
5A
Flexible Single Lead (d=0.16”/4mm). Refer to
“Options” on page 7 to specify weight or chuck.
Flange / 1 in., 1.5 in.,
2 in. Thread / Tri-Clamp
Min.:3 ft. 4 in. (1 m)(1)
Max.: 55 ft. 9 in. (17 m)
★
2A
Flexible Twin Lead with weight
Flange / 1.5 in., 2 in.
Thread
Min.:3 ft. 4 in. (1 m)
Max.: 55 ft. 9 in. (17 m)
3A
Coaxial (for level measurement)(2)
Flange / 1 in., 1.5 in.,
2 in. Thread
Min.:1 ft. 4 in. (0.4 m)
Max.: 19 ft. 8 in. (6 m)
Probe length units (see page 21 for total probe length)
E
English (feet, inches)
★
M
Metric (meters, centimeters)
★
Probe length (feet / meters)
XXX
6
0-55 feet or 0-17 meters
★
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July 2014
Rosemount 3308 Series
Table 1. Rosemount 3308 Series Level and/or Interface Measurements in Liquids Ordering Information
The starred options (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
Probe length (inches / centimeters)
XX
0-11 inches or 0-99 Centimeters
★
Update rate, operating frequency and protocol
WA3
User Configurable Update Rate, 2.4 GHz DSSS (Direct Sequence Spread Spectrum), IEC 62591 (WirelessHART)
★
Omnidirectional wireless antenna and SmartPower solutions (see page 10 for functional specification)
WK1
External Antenna, Adapter for Black Power Module (I.S. Power Module Sold Separately)
WN1(3) High Gain, Remote Antenna (see page 34 for dimensions), Adapter for Black Power Module (I.S. Power Module
Sold Separately)
★
★
Options
Display
M5
Device Display (see page 10)
★
Factory configuration
C1
Factory Configuration (Configuration Data Sheet required with order, available at www.rosemount.com)
★
Certifications
P1
Hydrostatic Testing
★
Q4
Calibration Data Certificate
★
Q8
Material Traceability Certification per EN 10204 3.1
★
Q66
Welding Procedure Qualification Record Documentation
Installation options
LS
Long Stud for Flexible Single Lead Probes, 25 cm (10 in.) (for use in tall nozzles)
BR
Mounting Bracket for 1.5 in. NPT Process Connection (see page 33)
★
Weight and anchoring options for flexible single probes (see page 20 for dimensions)
W1
Small Weight (for narrow tank openings less than 2 in. (50 mm)) (Required for PTFE covered probes)
★
W3
Heavy weight (for most applications)
★
W4
Chuck (to tie probe end to tank bottom)
★
W2
Short weight (when measuring close to the probe end)
Weight assembly options for flexible single probes
WU
Weight or chuck not mounted on the probe
★
PlantWeb diagnostic functionality
DA1
HART® Diagnostics (see page 11)
★
Centering disc (see page 25 for dimensions and size recommendation)(4)
S2
2 in. Centering disc(5)
★
S3
3 in. Centering disc(5)
★
S4
4 in. Centering disc(5)
★
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July 2014
Rosemount 3308 Series
Table 1. Rosemount 3308 Series Level and/or Interface Measurements in Liquids Ordering Information
The starred options (★) represent the most common options and should be selected for best delivery. The non-starred offerings are subject
to additional delivery lead time.
P2
2 in. Centering disc PTFE
★
P3
3 in. Centering disc PTFE
★
P4
4 in. Centering disc PTFE
★
S6
6 in. Centering disc(5)
S8
8 in. Centering disc(5)
P6
6 in. Centering disc PTFE
P8
8 in. Centering disc PTFE
Assemble / consolidate to chamber (see page 23)
XC
Consolidate to Chamber
★
Engineered solutions (see page 23)
Pxxx
Engineered Solutions beyond standard model codes. (Consult factory for details)
(1) Minimum probe length is 4 ft 11 in. (1.5 m) for PTFE covered probes (Material of Construction codes 7 and 8).
(2) Requires model 3308Axx1.
(3) Not CE approved.
(4) Available for probe types 2A, 4A, 4B, and 5A. Not available with PTFE covered probes (Material of Construction codes 7 and 8).
(5) Centering disc in same material as probe material of construction.
8
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July 2014
Rosemount 3308 Series
Table 2. Accessories Ordering Information
Process connection - size/type (consult the factory for other process connections)
Centering discs(1)(2)
(see page 25 for dimensions and size recommendation)
Outer diameter
03300-1655-1001
Kit, 2-in. Centering disc, SST, Single Flex Lead
1.8 in. (45 mm)
★
03300-1655-1002
Kit, 3-in. Centering disc, SST, Single Flex Lead
2.7 in. (68 mm)
★
03300-1655-1003
Kit, 4-in. Centering disc, SST, Single Flex Lead
3.6 in. (92 mm)
★
03300-1655-1006
Kit, 2-in. Centering disc, PTFE, Single Flex Lead
1.8 in. (45 mm)
★
03300-1655-1007
Kit, 3-in. Centering disc, PTFE, Single Flex Lead
2.7 in. (68 mm)
★
03300-1655-1008
Kit, 4-in. Centering disc, PTFE, Single Flex Lead
3.6 in. (92 mm)
★
03300-1655-1004
Kit, 6-in. Centering disc, SST, Single Flex Lead
5.55 in. (141 mm)
03300-1655-1005
Kit, 8-in. Centering disc, SST, Single Flex Lead
7.40 in. (188 mm)
03300-1655-1009
Kit, 6-in. Centering disc, PTFE, Single Flex Lead
5.55 in. (141 mm)
03300-1655-1010
Kit, 8-in. Centering disc, PTFE, Single Flex Lead
7.40 in. (188 mm)
Vented flanges(3)
03300-1812-0092
Fisher 249B/259B(4)
03300-1812-0093
Fisher 249C
03300-1812-0091
Masoneilan
Flushing connection rings
DP0002-2111-S6
2 in. ANSI, ¼ in. NPT connection
DP0002-3111-S6
3 in. ANSI, ¼ in. NPT connection
DP0002-4111-S6
4 in. ANSI, ¼ in. NPT connection
DP0002-5111-S6
DN50 ¼ in. NPT. connection
DP0002-8111-S6
DN80 ¼ in. NPT. connection
Other
03300-7004-0001
MACTek Viator HART Modem and cables (RS232 connection)
★
03300-7004-0002
MACTek Viator HART Modem and cables (USB connection)
★
(1) If a centering disc is required for a flanged probe, the centering disc can be ordered with options Sx or Px on page 7 in the model code. If a centering disc is required
for a threaded connection or as a spare part, it should be ordered using the item numbers listed below.
(2) To order a centering disc in a different material, consult the factory.
(3) 1½ in. NPT threaded connection is required.
(4) For pressure and temperature rating, see “Fisher & Masoneilan Flange Rating” on page 12.
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July 2014
Rosemount 3308 Series
Specifications
Functional specifications
General
Field of Application
Liquids and semi-liquids level or liquid/liquid interfaces
 3308Axx1... for level or submerged probe interface measurement
 3308Axx2... for level and interface measurement
Measurement Principle
Time Domain Reflectometry (TDR)
(See “Introduction” on page 2 for a description of how it works)
Microwave Output Power
Nominal 10 μw, Max <20 mW
Humidity Limits
0 to 100% relative humidity
Wireless
Output
IEC 62591 (WirelessHART) 2.4 GHz DSSS
Frequency Range
2400 - 2483.5 MHz
Radio Frequency Output from
Antenna
External (WK option) antenna: Maximum10 mW (+10dBm) EIRP
High Gain, Remote (WN option) antenna: Maximum of 40mW (16dBm) EIRP
Modulation Type
QPSK/iEEE 802.15.4 DSSS IEC 62591 (WirelessHART)
Number of Channels
15
Channel Spacing
5 MHz
Emission Designation
G1D
Transmit Rate
User selectable, 4 seconds to 60 minutes
Display and configuration
The optional device display can show sensor variables
and diagnostic information. Display updates at each
wireless update.
Device Display

Output Units


10
For Level, Interface, and Distance: ft, inch, m, cm, or mm
For Volume: ft3, inch3, US gals, Imp gals, barrels, yd3, m3, or liters
For temperature: °F, °C
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July 2014
Output Variables
Rosemount 3308 Series
Display
PV, SV, TV, QV
Level
X
X
Distance
X
X
Surface Signal Strength
N/A
X(2)
Total Volume
X
X
Interface Level(1)
X
X
Interface Distance(1)
X
X
Interface Signal Strength(1)
N/A
X(2)
Upper Product Thickness(3)
X
X
Electronics Temperature
X
X(2)
Signal Quality
X
X(2)
Supply Voltage
X
X(2)
% of Range
X
X(2)
(1) For 3308Axx1, Interface measurement is only available for fully submerged probe.
(2) Not available as primary variable.
(3) Only available with 3308Axx2.
HART Diagnostics
Signal Quality Metrics - Diagnostics package that monitors the relations between surface, noise
and threshold. The function can be used to detect abnormal conditions in the process such as
probe coating or sudden loss of signal strength. Signal Quality is available as Output Variable
and it comes with user configurable alerts through AMS Wireless Configurator or Field
Communicator.
Temperature limits
Verify that the operating atmosphere of the transmitter is consistent with the appropriate
hazardous locations certifications
Ambient and Storage
Temperature Limits
Operating limit
Storage limit
With Device Display
-40 to 175 °F (-40 to 80° C)(1)
-40 to 185 °F (-40 to 85 °C)
Without Device Display
-40 to 185 °F (-40 to 85° C)
-40 to 185 °F (-40 to 85 °C)
(1) Device display may not be readable and device display updates will be slower at temperatures below -4 °F
(-20 °C).
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July 2014
Rosemount 3308 Series
Process temperature and pressure rating
Max. Rating, Standard Tank Connections
Pressure psig (bar)
580 (40)
PTFE covered probe and
flange (model code 7)
232 (16)
Process Temperature
-14 (-1)
-40
(-40)
302
(150)
Temperature °F (°C)
Final rating depends on flange and O-ring selection. Table 3 on page 13 gives the temperature
ranges for standard tank seals with different O-ring materials.
Note
The maximum process temperature is at the lower part of the flange.
ASME/ANSI Flange Rating
316L SST Flanges according to ASME B16.5 Table 2-2.3:
 Max. 302 °F/580 psig (150 °C/40 bar)
EN Flange Rating
EN 1.4404 according to EN 1092-1 material group 13E0:
 Max. 302 °F/580 psig (150 °C/40 bar)
Fisher & Masoneilan
Flange Rating
316L SST Flanges according to ASME B16.5 Table 2-2.3:
 Max. 302 °F/580 psig (150 °C/40 bar)
JIS Flange Rating
316L SST Flanges according to JIS B2220 material group 2.3:
 Max. 302 °F/580 psig (150 °C/40 bar)
Tri-Clamp Rating
Maximum pressure is 16 bar for 1.5 in. (37.5 mm) and 2 in. (50 mm) housing; and 10 bar for 3 in.
(75 mm) and 4 in. (100 mm) housing. The final rating depends on the clamp and gasket.
The PTFE covered probe with plate design has a protective plate in PTFE and a backing flange in
316L / EN 1.4404. The protective flange plate prevents the backing flange from being exposed
to the tank atmosphere.
Plate Design
Flange rating according to SST backing flange ASME B16.5 Table 2-2.3, EN 1092-1 material
group 13E0, and JIS B2220 material group 2.3.
PTFE protective plate:
 Max. 302 °F/232 psig (150 °C/16 Bar)
Flange Connection Rating
12
See Table 4 on page 13 for the conditions used for flange strength calculations.
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July 2014
Rosemount 3308 Series
Interface measurements
The Rosemount 3308 Series is well suited for interface measurements, including applications
where the probe is fully submerged in the liquid:
Interface Level
Product Level
Interface Level
Considerations
Interface Measurement
Interface Measurement with
fully submerged probe
If interface is to be measured, follow these criteria:

The dielectric constant of the upper product must be known and should not vary. The AMS
Wireless Configurator and Field Communicator have a built-in dielectric constant calculator
to assist the user in determining the dielectric constant of the upper product.

The dielectric constant of the upper product must have a lower dielectric constant than the
lower product to have a distinct reflection.

The difference between the dielectric constants for the two products must be larger than 10.

Maximum dielectric constant for the upper product is 5.

Minimum detectable upper product thickness is 4 in. (10 cm).
For guidelines on emulsion situations, consult your local Emerson Process Management
representative.
Table 3. Temperature Ranges for Standard Tank Seals with Different O-ring Materials
Tank seal with different O-ring material
Min. temperature °F (°C) in air
Max. temperature °F (°C) in air
Viton Fluoroelastomer
5 (-15)
302 (150)
Ethylene Propylene (EPDM)
-40 (-40)
266 (130)
Kalrez 6375 Perfluoroelastomer
14 (-10)
302 (150)
Nitrile Butadiene (NBR)
-31 (-35)
230 (110)
Note
Always check the chemical compatibility of the o-ring material with your application.
Table 4. Conditions Used for Flange Strength Calculations
Bolting material
Gasket
ASME/ANSI
SST SA193 B8M Class 2
Soft (1a) with min.
thickness 1.6 mm
EN, JIS
EN 1515-1/-2 group
13E0, A4-70
Soft (EN 1514-1) with
min. thickness 1.6 mm
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Flange material
Hub material
SST A182
Gr. F316L and
EN 10222-5-1.4404
SST SA479M 316L and
EN 10272-1.4404
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Rosemount 3308 Series
Performance specifications
General
Reference Conditions(1)
Single flexible probe mounted in a 4" pipe. Normal indoor temperature (68° - 79 °F, 20° - 26 °C)
water
Accuracy
±0.98 in. (25 mm)
Reference Accuracy
±0.25 in. (6 mm)
0
0
Repeatability
±0.08 in. (2 mm)(2)
Ambient Temperature Effect
Less than 0.01% of measured distance per °C
Power Module Battery Life
9 years at one minute update rate(3)
33 ft.
(10 m)
56 ft.
(17 m)
Measuring
distance
Environment
Vibration Resistance
Electromagnetic Compatibility
No effect when tested per the requirements of IEC60770-1 (1999):
High Vibration Level - field or pipeline (10-60 Hz 0.21 mm displacement peak amplitude /
60-2000 Hz 3g).

Meets CE 61326:2012 and NE21:2012 if installed in metallic vessels or still pipes.

Single lead probes are not suited for non-metallic tanks or open atmosphere applications, due
to high susceptibility to strong electromagnetic fields.
(1) Please refer to the IEC 60770-1 (IEC 1292-2) standard for a definition of radar specific performance parameters and if applicable corresponding test procedure.
(2) According to IEC61298-2 (at reference conditions where averaging at specified measuring points was used to be able to capture specific parameters e.g.
hysteresis, non-repeatability etc.). For field verification where reference conditions cannot be established the repeatability may be verified if the transmitter is
operating in High Performance Mode.
(3) Reference conditions are 70 °F (21 °C), and routing data for three additional network devices.
14
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July 2014
Rosemount 3308 Series
Interface measuring range
The maximum allowable upper product thickness/measuring range is primarily determined by
the dielectric constants of the two liquids.
Target applications include interfaces between oil/oil-like and water/water-like liquids, with a
low (<3) dielectric constant for the upper product and a high (>20) dielectric constant for the
lower product. For such applications, the maximum measuring range is limited by the length of
the coaxial and rigid single lead probes.
For flexible probes, the maximum measuring range is reduced by the maximum upper product
thickness, according to the diagram below. However, characteristics may vary between the
different applications.
Considerations
Maximum upper product thickness, ft (m)
Maximum upper product thickness for flexible probes
39.4 (12)
Lower product
dielectric constant
32.8 (10)
80
40
26.2 (8)
20
DC 2
10
25 ft (7 m)
DC 20
19.7 (6)
Example: With an upper
product dielectric
constant of 2, and a lower
product dielectric
constant of 20, the
maximum upper product
thickness is 25 ft (7 m).
13.1 (4)
6.6 (2)
80
10
0
1
2
3
4
5
6
7
8
9
10
11
Upper product dielectric constant
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July 2014
Rosemount 3308 Series
Table 5. Measuring Range and Minimum Dielectric Constant
Flexible single lead
Rigid single lead
Flexible twin lead
Coaxial
55.8 ft (17 m)
19.7 ft (6 m)
9.8 ft (3 m) for 8 mm
probes (code 4A)
Maximum measuring range
55.8 ft (17 m)
19.7 ft (6 m) for 13
mm probes (code 4B)
Minimum dielectric constant(1)(2)
2.0 up to 32.8 ft (10 m)
2.0
10 up to 55.8 ft (17 m)
2.0 up to 32.8 ft (10 m)
2.0
10 up to 55.8 ft (17 m)
(1) Minimum Dielectric Constant may be lower than 2.0 if one or more of the following conditions apply:
Probe is installed in stilling well or chamber.
Maximum measuring range is not utilized.
Noise Threshold is manually adjusted to a lower level.
(2) For temperatures above 140 °F (60 °C) manual adjustment of noise threshold may be required for products with low dielectric constant at or close to maximum
measuring range.
Table 6. Maximum Recommended Viscosity and Coating / Build-up
Single lead
Twin lead
Coaxial
Maximum viscosity
8000 cP (1)
1500 cP
500 cP
Coating / build-up
Coating allowed
Thin coating allowed, but no bridging
Coating not recommended
(1) Consult your local Emerson Process Management representative in the case of agitation/turbulence and high viscous products.
16
www.rosemount.com
July 2014
Rosemount 3308 Series
Accuracy over measuring range
The measuring range depends on probe type, dielectric
constant of the product and installation environment, and is
limited by the Blind Zones at the very top and bottom of the
probe. In the Blind Zones, the accuracy exceeds ±1.18 in. (30
mm), and measurements may not be possible. Measurements
close to the Blind Zones will have reduced accuracy.
Upper Blind Zone
Reduced accuracy
The following conditions will impact the Blind Zones:

If the single lead probes or twin probes are installed in a
nozzle, the nozzle height shall be added to the specified
Upper Blind Zone.

The measuring range for the PTFE covered Flexible Single Lead
probe includes the weight when measuring on a high
dielectric media.

When using a metallic centering disc, the Lower Blind Zone is
8 in. (20 cm), including weight if applicable. When using a
PTFE centering disc, the Lower Blind Zone is not affected.
Figure 1, Figure 2, and Figure 3 illustrate the accuracy over
measuring range at reference condition using the Trim Near
Zone function, with alternating probe types and varying
dielectric constant of the product.
Reduced accuracy
Lower Blind Zone
Note
Measurements may not be possible in the Blind Zones, and
measurements close to the Blind Zones will have reduced
accuracy. Therefore, the 4-20 mA points should be configured
outside these zones.
Figure 1. Accuracy over Measuring Range for Single Lead Probes
Water (DC = 80)
Oil (DC = 2)
±0.25 in.
±1.18 in.
±0.25 in.
±1.18 in.
(6 mm)
(30 mm)
(6 mm)
(30 mm)
Accuracy
3.2 in. (8 cm)
9.8 in. (25 cm)
Accuracy
4.3 in. (11 cm)
10.6 in. (27 cm)
Blind Zone
2 in. (5 cm)
5.1 in. (13 cm)
www.rosemount.com
4.3 in. (11 cm)
17
July 2014
Rosemount 3308 Series
Figure 2. Accuracy over Measuring Range for Flexible Twin Lead Probe
Water (DC = 80)
Oil (DC = 2)
±0.25 in.
±1.18 in.
±0.25 in.
±1.18 in.
(6 mm)
(30 mm)
(6 mm)
(30 mm)
Accuracy
Accuracy
3.2 in. (8 cm)
3.2 in. (8 cm)
7.9 in. (20 cm)
7.9 in. (20 cm)
Blind Zone
0.4 in. (1 cm)
2 in. (5 cm)
7.9 in. (20 cm)
2.8 in. (7 cm)
Figure 3. Accuracy over Measuring Range for Coaxial Probe
Water (DC = 80)
Oil (DC = 2)
±0.25 in.
±1.18 in.
±0.25 in.
±1.18 in.
(6 mm)
(30 mm)
(6 mm)
(30 mm)
Accuracy
6.3 in. (16 cm)
8.3 in. (21 cm)
Accuracy
5.9 in. (15 cm)
7.1 in. (18 cm)
Blind Zone
2 in. (5 cm)
18
3.2 in. (8 cm)
2.8 in. (7 cm)
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July 2014
Rosemount 3308 Series
Physical specifications
Material selection
Material Selection
Emerson provides a variety of Rosemount product with various product options and
configurations including materials of construction that can be expected to perform well in a
wide range of applications. The Rosemount product information presented is intended as a
guide for the purchaser to make an appropriate selection for the application. It is the
purchaser’s sole responsibility to make a careful analysis of all process parameters (such as all
chemical components, temperature, pressure, flow rate, abrasives, contaminants, etc.), when
specifying product, materials, options and components for the particular application.
Emerson Process Management is not in a position to evaluate or guarantee the compatibility
of the process fluid or other process parameters with the product, options, configuration or
materials of construction selected.
Tank connection and probe
The tank connection consists of a tank seal, a flange,
Tri-Clamp, or NPT or BSP/G threads.
Tank Connection
PTFE covered probe
and protective plate
The PTFE covered probe with plate design has a
protective plate in PTFE and a backing flange in 316L /
EN 1.4404. The protective flange plate prevents the
backing flange from being exposed to the tank
atmosphere.
See “Dimensional Drawings” on page 29.
Protective plate
Flange Dimensions
www.rosemount.com
Follows ASME B16.5, JIS B2220, and EN 1092-1 standards for blind flanges.
For Proprietary Fisher® and Masoneilan® flanges, see “Proprietary Flanges” on page 35.
19
July 2014
Rosemount 3308 Series
Flexible Single Lead, Rigid Single Lead, Flexible Twin Lead, and Coaxial.
There are in total four weight and anchoring options for Flexible Single Lead probes.
Weight and
anchoring option
Weight
lb (kg)
Dimension
in. (mm)
Application
PTFE covered probe
A small weight is
recommended for narrow
tank openings less than 1.5
inches (38 mm).
SST probe:
0.88 (0.40)
W1(Small weight)
SST probe
PTFE covered
probe: 2.20 (1)
17.1
(435)
5.5
(140)
Required weight option for
PTFE covered probes.
Ø 0.9 (22) Ø 0.88 (22.5)
Probe Versions
2 (50)
W2 (Short weight)
0.88 (0.40)
Ø 1.5 (38)
W3 (Heavy weight) 2.43 (1.10)
5.5
(140)
A short weight is available
for the single flexible
stainless steel probe. It is
recommended for
maximized measuring
ranges with measurements
close to the probe end.
A heavy weight is the
recommended choice for
most applications.
Ø 1.5 (38)
W4 (Chuck)
20
-
To tie probe end to tank
bottom.
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July 2014
Material Exposed To
Tank Atmosphere
Rosemount 3308 Series
Material model code 1: 316L stainless steel (EN 1.4404), PTFE, PFA, and O-ring materials
Material model code 7: PTFE (1 mm PTFE cover)
Material model code 8: PTFE, 316 L SST (EN 1.4404), and O-ring materials
This is defined from the Upper Reference Point to the end of the probe (weight included, if
applicable).
NPT
BSP/G
Flange
Tri-Clamp
Upper Reference Point
Total Probe Length
Total Probe Length
Select the probe length according to the required measuring range (the probe must be hung
and fully extended through the entire distance where level readings are desired).
Cut-to-fit probes
All probes can be cut in field except for the PTFE covered probe. However, there are some
restrictions for the coaxial probe: Probes over 4.1 ft (1.25 m) can be cut up to 2 ft (0.6 m).
Shorter probes can be cut to the minimum length of 1.3 ft (0.4 m).
Minimum and Maximum Probe
Length
Flexible Single Lead: 3.3 ft (1 m) to 55.8 ft (17 m)
Rigid Single Lead (0.3 in./8 mm): 1.3 ft (0.4 m) to 9.8 ft (3 m)
Rigid Single Lead (0.5 in./13 mm): 1.3 ft (0.4 m) to 19.7 ft (6 m)
Flexible Twin Lead: 3.3 ft (1 m) to 55.8 ft (17 m)
Coaxial: 1.3 ft (0.4 m) to 19.7 ft (6 m)
Probe Angle
0 to 90 degrees from vertical axis
Tensile Strength
Flexible Single Lead: 2698 lb (12 kN)
Flexible Twin Lead: 2023 lb (9 kN)
Collapse Load
Flexible Single Lead: 3597 lb (16 kN)
Sideway Capacity
Rigid Single Lead: 4.4 ft. lbf, 0.44 lb at 9.8 ft. (6 Nm, 0.2 kg at 3 m)
Coaxial: 73.7 ft. lbf, 3.7 lb at 19.7 ft. (100 Nm, 1.67 kg at 6 m)
www.rosemount.com
21
July 2014
Rosemount 3308 Series
Nozzle
Height
Clearance to
tank wall
Nozzle Diameter
Minimum Clearance
(See Table 7 on page 24)
Make sure the nozzle does not extend into the tank.
To get best possible performance, the following
must be considered before installing the
transmitter:
Other Mechanical Considerations

Inlets should be kept at a distance in order to
avoid product filling on the probe.

Avoid physical contact between probes and
agitators, as well as applications with strong
fluid movement unless the probe is anchored.

Probe tie-down is recommended if the probe
can move to within 1 ft. (30 cm) of any object
during operations.
Flexible single lead probe with chuck.

In order to stabilize the probe for side forces, it is
possible to fix or guide the probe to the tank
bottom

Single lead probes are not suited for non-metallic tanks or open atmosphere applications,
due to high susceptibility to strong electromagnetic fields.
See the Rosemount 3308 Series Wireless Guided Wave Radar, 3308A Reference Manual
(document number 00809-0100-4308) for more mechanical installation information.
Weight
22
Flange: Depends on flange size
Flexible Single Lead probe: 0.05 lb/ft. (0.07 kg/m)
Rigid Single Lead probe (0.3 in./8 mm): 0.27 lb/ft. (0.4 kg/m)
Rigid Single Lead probe (0.5 in./13 mm): 0.71 lb/ft. (1.06 kg/m)
Flexible Twin Lead probe: 0.09 lb/ft. (0.14 kg/m)
Coaxial probe: 0.67 lb/ft. (1 kg/m)
End weight: W1: 0.88 lb (0.40 kg)
W2: 0.88 lb (0.40 kg)
W3: 2.43 lb (1.10 kg)
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July 2014
Rosemount 3308 Series
Engineered solutions
Pxxx
When standard model codes are not sufficient to fulfill requirements, please consult the
factory to explore possible Engineered Solutions. This is typically, but not exclusively, related
to the choice of wetted materials or the design of a process connection. These Engineered
Solutions are part of the expanded offerings and may be subject to additional delivery lead
time. For ordering, factory will supply a special P-labeled numeric option code that should be
added at the end of the standard model string. See example model string below.
Example Model String:
3308A-S-X-2-D1-I5-S-1-V-2-NN-N-5A-E-030-00-WA3-WK1-M5-W3-P1234
Chamber / pipe installations
General Chamber Considerations
The recommended minimum chamber diameter is 4 in. (100 mm) for Single Flexible probe
and 3 in. (75 mm) for the Single Rigid probe. The probe should be centered to prevent it
touching the sides of the well.
PTFE covered probes are not recommended for chamber/pipe installations.
Rosemount 9901 allows external mounting of
process level instrumentation. It supports a variety
of process connections, and optional drain and vent
connections. The Rosemount 9901 chamber is
designed to the ASME B31.3 standard, and is
Pressure Equipment Directive (PED) compliant. Use
option code XC to order together with the 3308
Series transmitters.
Side-and-side
dimension
Side-and-bottom
dimension
The probe length to use for a Rosemount 9901
chamber can be calculated with this formula:
Side-and-side dimension:
Probe length=Centre-to-centre dimension + 19 in.
(48 cm)
Side-and-bottom dimension:
Probe length=Centre-to-centre dimension + 4 in.
(10 cm)
Centre-to-centre
Centre-to-centre
Rosemount 9901 Chamber
Use a centering disc the same diameter as the
chamber if the probe length >3.3 ft. (1 m). See
“Centering Discs” on page 24 for which disc to use.
For additional information, see the Rosemount 9901 Chamber for Process Level
Instrumentation Product Data Sheet (document number 00813-0100-4601).
A Rosemount 3308 Series transmitter is the perfect
replacement in an existing displacer chamber.
Proprietary flanges are offered, enabling use of
existing chambers to make installation easy.
Existing Chamber
Considerations when changing to 3308 Series:
 The 3308 Series flange choice and probe length
must be correctly matched to the chamber. Both
standard ANSI and EN (DIN), as well as proprietary
chamber flanges, are available. See “Proprietary
Flanges” on page 35 to identify the proprietary
flanges.

Replace
chamber
flange
Probe
Length
Displacer
Length
See “Centering Discs” on page 24 for which disc to use. See Table 8 on page 25 for
guidelines on the required probe length.
For additional information, see the Replacing Displacers with Guided Wave Radar Technical
Note (document number 00840-2200-4811).
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23
July 2014
Rosemount 3308 Series
Probe Type in Chamber
Considerations
When installing a Rosemount 3308 in a chamber, the single lead probe is recommended. The
probe length determines if a Single Rigid or Single Flexible probe should be used:
 Less than 19.7 ft. (6.0 m):
Rigid Single Probe is recommended. Use a centering disc for probe > 3.3 ft. (1 m). When
mounting space is limited, use a Flexible Single Probe with a weight and centering disc.
 More than 19.7 ft. (6.0 m):
Use Flexible Single Probe with a weight and centering disc.
Centering Discs
To prevent the probe from contacting the chamber or pipe wall, centering discs
are available for rigid single, flexible single, and flexible twin lead probes. The
disc is attached to the end of the probe. Discs are made of stainless steel or
PTFE. See Table 9 on page 25 for Dimension D. Table 10 on page 25 shows which
centering disc diameter to choose for a particular pipe.
D
Table 7. Minimum Clearance
Recommended nozzle
diameter
Flexible single lead
Rigid single lead
Flexible twin lead
Coaxial
4 in. (100 mm) or more
4 in. (100 mm) or more
4 in. (100 mm) or more
> probe diameter
2 in. (50 mm)
> probe diameter
N/A
Min. nozzle diameter(1) 1.5 in. (38 mm)
1.5 in. (38 mm) for probe
type 4A
2 in. (50 mm) for probe
type 4B
Maximum nozzle
height
Min. clearance to tank
wall or obstruction
Min. pipe/bypass
diameter
4 in. (100 mm) +
nozzle diameter(2)
4 in. (100 mm) +
nozzle diameter
4 in. (100 mm) +
nozzle diameter
4 in. (100 mm) if smooth
metallic wall.
4 in. (100 mm) if smooth
metallic wall.
4 in. (100 mm) if smooth
metallic wall.
16 in. (400 mm) if
disturbing objects or
rugged metallic.
16 in. (400 mm) if
disturbing objects or
rugged metallic.
16 in. (400 mm) if
disturbing objects or
rugged metallic.
Consult your local Emerson
Process Management
representative.
2 in. (50 mm)
Consult your local Emerson
Process Management
representative.
0 in. (0 mm)
1.5 in. (38 mm)
(1) The Trim Near Zone (TNZ) function may be necessary or an Upper Null Zone (UNZ) setup may be required to mask the nozzle.
(2) For nozzles taller than 4 in. (100 mm), the Long Stud version is recommended (option code LS) to prevent the flexible portion from touching the edge of the
nozzle.
24
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July 2014
Rosemount 3308 Series
Table 8. Required Probe Length in Chambers
Chamber manufacturer
Probe length(1)
Major torque-tube manufacture (249B, 249C, 249K, 249N, 259B)
Displacer + 9 in. (229 mm)
Masoneilan (Torque tube operated), proprietary flange
Displacer + 8 in. (203 mm)
Other - torque tube(2)
Displacer + 8 in. (203 mm)
Magnetrol (spring operated)(3)
Displacer + between 7.8 in. (195 mm) to 15 in. (383 mm)
Others - spring operated(2)
Displacer + 19.7 in. (500 mm)
(1) If flushing ring is used, add the ring height to the probe length.
(2) For other manufacturers, there are small variations. This is an approximate value, actual length should be verified.
(3) Lengths vary depending on model, SG and rating, and should be verified.
Table 9. Centering Discs Dimensions
Disc size
Actual disc diameter
2 in.
1.8 in. (45 mm)
3 in.
2.7 in. (68 mm)
4 in.
3.6 in. (92 mm)
6 in.
5.55 in. (141 mm)
8 in.
7.40 in. (188 mm)
Table 10. Centering Disc Size Recommendation for Different Pipe Schedules
Pipe size
Pipe schedule
5s, 5 & 10s,10
40s, 40 & 80s, 80
120
160
2 in.
2 in.
2 in.
N/A(1)
N/A(2)
3 in.
3 in.
3 in.
N/A(1)
2 in.
4 in.
4 in.
4 in.
4 in.
3 in.
5 in.
4 in.
4 in.
4 in.
4 in.
6 in.
6 in.
6 in.
4 in.
4 in.
7 in.
N/A(1)
6 in.
N/A(1)
N/A(1)
8 in.
8 in.
8 in.
6 in.
6 in.
(1) Schedule is not available for pipe size.
(2) No centering disc is available.
www.rosemount.com
25
July 2014
Rosemount 3308 Series
Product Certifications
European Union Directive Information
The EC Declaration of Conformity for all applicable European
directives for this product can be found on
www.rosemount.com. A hard copy may be obtained by
contacting your local sales representative.
Approved Manufacturing Locations
Rosemount Inc. - Chanhassen, Minnesota, USA
Rosemount Tank Radar AB -Gothenburg, Sweden
Emerson Process Management Asia Pacific Private Limited Singapore
ATEX Directives (94/9/EC)
Emerson Process Management complies with the ATEX
Directive
Ordinary Location Certification for FM
Approvals
As standard, the transmitter has been examined and tested to
determine that the design meets basic electrical, mechanical,
and fire protection requirements by FM Approvals, a nationally
recognized testing laboratory (NRTL) as accredited by the
Federal Occupational Safety and Health Administration (OSHA).
Pressure Equipment Directive (PED)
Complies with 97/23/EC article 3.3
Hazardous Locations Certificates
North-American certifications
FM US Approvals
Electro Magnetic Compatibility (EMC)
(2004/108/EEC)
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
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.
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 that may cause undesired operation
This device must be installed to ensure a minimum antenna
separation distance of 20 cm from all persons.
I5
Intrinsically Safe
Certificate: 3046655
Applicable Standards: FM Class 3600 – 2011, FM Class
3610 – 2010, FM Class 3810 – 2005, NEMA 250 – 2003,
ANSI/ISA 60079-0:2009, ANSI/ISA 60079-11:2011,
ANSI/ISA 60079-26:2011, ANSI/ISA 60529:2004.
Markings: IS CL I, DIV 1, GP A, B, C, D:
IS CL I Zone 0, AEx ia IIC;
T4 Ta = -55 to +70 °C
WHEN INSTALLED PER ROSEMOUNT DRW 03308-1010
Special Conditions of Certification:
1. The Model 3308 transmitter housing contains aluminum,
protect the enclosure to avoid a potential risk of ignition
due to impact or friction.
2. The surface resistivity of the polymeric antenna is greater
than 1GW. To avoid electrostatic charge buildup, it must
not be rubbed or cleaned with solvents or a dry cloth.
3. For use with the Emerson Process Management 701PBKKF
SmartPower Option only.
4. Only the Emerson Process Management 375 or 475 Field
Communicator is approved for use with this transmitter.
5. The maximum permitted operating temperature of the
Rosemount 3308A transmitter is 70 °C. To avoid the
effects of process temperature and other thermal effects
care shall be taken to ensure that the “Electronics
Temperature” does not exceed 70 °C.
Caution
Changes or modifications to the equipment not expressly approved by
Rosemount Inc. could void the user’s authority to operate the
equipment.
26
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July 2014
Rosemount 3308 Series
FM Canadian Approvals
I6
Special Conditions of Certification:
1. The Model 3308 transmitter housing contains aluminum,
protect the enclosure to avoid a potential risk of ignition
due to impact or friction.
Intrinsically Safe
Certificate: 3046655
2. The surface resistivity of the polymeric antenna is greater
than 1GW. To avoid electrostatic charge buildup, it must
not be rubbed or cleaned with solvents or a dry cloth.
Applicable Standards: CSA Std. C22.2 No. 1010.1:04, CSA
Std. 22.2 No 94-M91,
CSA Std. C22.2 No. 157 – 92, CAN/CSA-C22.2 No.
60079-0:11,
CAN/CSA-C22.2 No. 60079-11:11
3. For use with the Emerson Process Management 701PBKKF
SmartPower Option only.
4. Only the Emerson Process Management 375 or 475 Field
Communicator is approved for use with this transmitter.
Markings: INTRINSICALLY SAFE Ex ia
CLASS I, GP A, B, C, D;
CLASS I, Zone 0, Ex ia IIC Ga;
TEMP CODE T4 (-55 °C Ta +70 °C)
WHEN INSTALLED PER ROSEMOUNT DRW 03308-1010.
5. The maximum permitted operating temperature of the
Rosemount 3308A transmitter is 70 °C. To avoid the
effects of process temperature and other thermal effects
care shall be taken to ensure that the “Electronics
Temperature” does not exceed 70 °C.
Special Conditions of Certification:
1. The Model 3308 transmitter housing contains aluminum,
protect the enclosure to avoid a potential risk of ignition
due to impact or friction.
EAC certifications
2. The surface resistivity of the polymeric antenna is greater
than 1GW. To avoid electrostatic charge buildup, it must
not be rubbed or cleaned with solvents or a dry cloth.
EM, IM: Contact an Emerson Process Management
representative for additional information.
3. For use with the Emerson Process Management 701PBKKF
SmartPower Option only.
IECEx certificates
4. Only the Emerson Process Management 375 or 475 Field
Communicator is approved for use with this transmitter.
5. The maximum permitted operating temperature of the
Rosemount 3308A transmitter is 70 °C. To avoid the
effects of process temperature and other thermal effects
care shall be taken to ensure that the “Electronics
Temperature” does not exceed 70 °C.
European certificates
I1
ATEX Intrinsic Safe
Certificate: FM 12ATEX0072X
Applicable Standards: EN 60079-0:2012, EN 60079-11:
2012, EN 60079-26:2007
Markings: Category II 1 G, Ex ia IIC T4 Ga
(-55 °C Ta +70 °C);
1180
Technical Regulations Customs Union (EAC)
I7
IECEx Intrinsic Safety
Certificate: IECEx FMG 12.0029X
Applicable Standards: IEC 60079-0: 2011, IEC 60079-11:
2011, IEC 60079-26:2006
Markings: Ex ia IIC T4 Ga (-55 °C <Ta< +70 °C)
Special Conditions of Certification:
1. The Model 3308 transmitter housing contains aluminum,
protect the enclosure to avoid a potential risk of ignition
due to impact or friction.
2. The surface resistivity of the polymeric antenna is greater
than 1GW. To avoid electrostatic charge buildup, it must
not be rubbed or cleaned with solvents or a dry cloth.
3. For use with the Emerson Process Management 701PBKKF
SmartPower Option only.
4. Only the Emerson Process Management 375 or 475 Field
Communicator is approved for use with this transmitter.
5. The maximum permitted operating temperature of the
Rosemount 3308A transmitter is 70 °C. To avoid the
effects of process temperature and other thermal effects
care shall be taken to ensure that the “Electronics
Temperature” does not exceed 70 °C.
www.rosemount.com
27
Rosemount 3308 Series
July 2014
Taiwan Certifications
注意!
依據 低功率電波輻射性電機管理辦法
第十二條
經型式認證合格之低功率射頻電機,非經
許可,公司、商號或使用者均不得擅自變更頻
率、加大功率或變更原設計之特性及功能。
第十四條
低功率射頻電機之使用不得影響飛航安全
及干擾合法通信;經發現有干擾現象時,應立
即停用,並改善至無干擾時方得繼續使用。
前項合法通信,指依電信法規定作業之無
線電通信。
低功率射頻電機須忍受合法通信或工業、科學
及醫療用電波輻射性電機設備之干擾。
28
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July 2014
Rosemount 3308 Series
Dimensional Drawings
Figure 4. Flexible Single Lead Probe
Dimensions are in inches (millimeters).
2.8 (71.3)
3.9 (100.2)
External antenna
(option WK)
NPT 1 in., s52
NPT 1½ in., s52
NPT 2 in., s60
12 (297.2)
Thread sealing
2.4 (62)
H (Nozzle height)
H < 4 (100) + D
Ø D (Nozzle diameter)
1.9 (47)
3.4 (86)
Recommended: D > 4 (100)
Minimum: D=1.5 (38)(1)
Ø 0.16 (4): SST probe
Ø 0.28 (7): PTFE covered probe
L 56 ft
(17 m)
Min. 8 (200)
Min. 4 (100) if smooth metallic wall.
Min. 16 (400) if disturbing objects or
rugged metallic wall.
Weight for PTFE
covered probe
Heavy weight
(option W3)
Chuck
(option W4)
Short weight
(option W2)
5.5
(140)
5.5
(140)
Small weight
(option W1)
2 (50)
Ø 0.9 (22)
Ø 1.5 (38)
Chamber/pipe
17.1
(435)
1 (26)
Ø 1.5 (38)
Ø 1 (24.5)
Tri-Clamp
connection
7.8 (198)
Ø 0.88 (22.5)
The probe must be
in the center of the
probe/chamber
Min. Ø 2 (50)
PTFE covered probe
and protective plate
4.3 (110)
12 (297.2)
Protective
plate
BSP-G 1 in., s52
BSP-G 1½ in., s60
2.4 (62)
0.6 (15)
4 (100): Standard length
10 (250): Long stud (option LS)
www.rosemount.com
(1) The Trim Near Zone (TNZ) function may be necessary or an Upper
Null Zone (UNZ) setup may be required to mask the nozzle.
29
July 2014
Rosemount 3308 Series
Figure 5. Rigid Single Lead Probe
Dimensions are in inches (millimeters).
2.8 (71.3)
3.9 (100.2)
External antenna
(option WK)
12 (297.2)
NPT 1 in., s52
NPT 1½ in., s52
NPT 2 in., s60
Thread sealing
2.4 (62)
Nozzle height (H)
H < 4 (100) + D
Ø D (Nozzle diameter)
1.9 (47)
3.4 (86)
Recommended: D > 4 (100)
Minimum: D=1.5 (38) for probe type 4A(1)
D=2 (50) for probe type 4B(1)
L 10 ft (3 m)
for Ø 0.31 (8)
Min. 8 (200)
L 20 ft (6 m)
for Ø 0.51 (13)
Min. 4 (100) if smooth metallic wall.
Min. 16 (400) if disturbing objects or
rugged metallic wall.
Ø 0.31 (8) or Ø 0.51 (13): SST probe
Ø 0.47 (12): PTFE covered probe
Chamber/pipe
The probe must be
in the center of the
probe/chamber
Min. 0.2 (5)
Min. Ø 2 (50)
7.8 (198)
4.3 (110)
Tri-Clamp
connection
12 (297.2)
PTFE covered probe
and protective plate
Protective plate
BSP-G 1 in., s52
BSP-G 1½ in., s60
2.4 (62)
(1) The Trim Near Zone (TNZ) function may be necessary or an Upper
Null Zone (UNZ) setup may be required to mask the nozzle.
30
www.rosemount.com
July 2014
Rosemount 3308 Series
Figure 6. Coaxial Probe
Dimensions are in inches (millimeters).
2.8 (71.3)
3.9 (100.2)
External antenna
(option WK)
NPT 1 in., s52
NPT 1½ in., s52
NPT 2 in., s60
12 (297.2)
Thread sealing
L 20 ft.
(6 m)
1.9 (47)
Nozzle diameter
Min. Ø 1.2 (30)
2.4 (62)
3.4 (86)
Min. 8 (200)
Metallic contact with
nozzle or tank allowed
Min. 0
to tank wall
Chamber/pipe
Ø 1.1 (28)
Min. 0.2 (5)
Min. Ø 1.3 (32)
7.8 (198)
4.3 (110)
BSP-G 1 in., s52
BSP-G 1½ in., s60
2.4 (62)
1.1 (27)
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31
July 2014
Rosemount 3308 Series
Figure 7. Flexible Twin Lead Probe
Dimensions are in inches (millimeters).
2.8 (71.3)
3.9 (100.2)
External antenna
(option WK)
12 (299.5)
NPT 1½ in., s52
NPT 2 in., s60
Thread sealing
1.8 (45)
Nozzle height (H)
H < 4 (100) + D
1.1 (27)
3.5 (88)
Ø D (Nozzle diameter)
Recommended: D > 4 (100)
Minimum: D=2 (50)(1)
Chamber/pipe
L 56 ft.
(17 m)
Min. 8 (200)
Ø 0.16 (4)
Ø 0.16 (4)
Min. 4 (100) if smooth metallic wall.
Min. 16 (400) if disturbing objects or
rugged metallic wall.
3.5 (90)
Min. 0.2 (5)
7.8 (198)
Ø 1.4 (35)
Min. Ø 3 (75)
4.3 (110)
1.1 (27)
1.8 (45)
BSP-G 1½ in., s60
(1) The Trim Near Zone (TNZ) function may be necessary or an Upper
Null Zone (UNZ) setup may be required to mask the nozzle.
32
www.rosemount.com
July 2014
Rosemount 3308 Series
Figure 8. Mounting Bracket (Option Code BR)
IVE ATMOS
OS
P
PL
RE
HE
IN E
X
Dimensions are in inches (millimeters).
AL
EP
IV E
KE
T
IG
HT
W H E N CI R C
UI
T
Pipe diameter
max 2.5 (64)
5.2 (133)
Pipe mounting
(vertical pipe)
Pipe mounting
(horizontal pipe)
2.2 (57)
0.3 (7)
2.8 (70)
0.8 (20)
Wall mounting
www.rosemount.com
Hole pattern
wall mounting
33
July 2014
Rosemount 3308 Series
Figure 9. High Gain, Remote Antenna (Option Code WN1)
Dimensions are in inches (millimeters).
Mounting bracket
0.53 (13.5)
2.75 (69.9)
0.50 (12.7)
Antenna
20.2 (513)
2.75 (69.9)
4.22 (107.2)
0.13 (3.3)
Ø 0.41 (10.4)
3.80 (96.5)
Mounting bracket
1.05 (26.7)
Ø 0.66 (16.7)
2.50 (63.5)
25 ft (7.6 m)
cable
U-bolt
IVE ATMOS
OS
P
PL
RE
HE
IN E
X
RF lightning
arrestor
AL
EP
IV E
KE
T
IG
HT
W H E N CI R C
UI
T
Ø 0.31 (7.9)
2.43 (61.7)
Minimum drip loop
Ø12 (300)
2.40 (61.0)
5/16-18 UNC-2A
thread, 2PLS
4.04 (102.7)
Antenna
Mounting bracket
U-bolt
34
www.rosemount.com
July 2014
Rosemount 3308 Series
Figure 10. Proprietary Flanges
Raised Face
Recessed Face
Dimensions are in inches (millimeters).
B1
B1
D: Outside diameter
B1: Flange thickness with gasket surface
#
B2: Flange thickness without gasket surface
G
K
D
G
K
F=B1-B2: Gasket surface thickness
D
G: Gasket surface diameter
# Bolts: Number of bolts
K: Bolt hole circle diameter
B2
B2
Note
Dimensions may be used to aid in the identification of installed flanges. It is not intended for manufacturing use.
Table 11. Dimensions of Proprietary Flanges
Special flanges(1)
D
B1
B2
F
G
# Bolts
K
Fisher 249B/259B(2)
9.00
(228.6)
1.50
(38.2)
1.25
(31.8)
0.25
(6.4)
5.23
(132.8)
8
7.25
(184.2)
Fisher 249C(3)
5.69
(144.5)
0.94
(23.8)
1.13
(28.6)
-0.19
(-4.8)
3.37
(85.7)
8
4.75
(120.65)
Masoneilan(2)
7.51
(191.0)
1.54
(39.0)
1.30
(33.0)
0.24
(6.0)
4.02
(102.0)
8
5.87
(149.0)
(1) These flanges are also available in a vented version.
(2) Flange with raised face.
(3) Flange with recessed face.
Complementary point level monitoring
An ideal complement to the 3308, the Rosemount 2160 wireless
vibrating fork liquid level switch provides reliable high/low level
alarms and overfill protection, wirelessly communicating output
and advanced instrument health.
With an update rate of up to one second, the 2160 may be used
in both monitoring and control applications.
See the Rosemount 2160 Product Data Sheet
(document number 00813-0100-4160) for more information.
www.rosemount.com
35
Rosemount 3308 Series
Product Data Sheet
00813-0100-4308 Rev BA
July 2014
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 FZE
P.O. Box 17033
Jebel Ali Free Zone
Dubai UAE
Tel +971 4 811 8100
Fax +971 4 886 5465
www.rosemount.com
Emerson Process Management
Latin America
1300 Concord Terrace, Suite 400
Sunrise Florida 33323 USA
Tel +1 954 846 5030
www.rosemount.com
Emerson Process Management
Blegistrasse 23
P.O. Box 1046
CH 6341 Baar
Switzerland
Tel +41 (0) 41 768 6111
Fax + 41 (0) 41 768 6300
www.rosemount.com
Emerson Process Management
Asia Pacific Pte Ltd
1 Pandan Crescent
Singapore 128461
Tel +65 6777 8211
Fax +65 6777 0947
Enquiries@AP.EmersonProcess.com
www.rosemount.com
Emerson Beijing Instrument Co
No. 6 North Street, Hepingli
Dongcheng District, Beijing
100013
China
Tel +8610 6428 2233
Fax +8610 64287640
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.
Viton and Kalrez are registered trademarks of DuPont Performance Elastomers.
All other marks are the property of their respective owners.
© 2014 Rosemount Inc. All rights reserved.
00813-0100-4308, Rev BA, 07/14
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