Rosemount Analytical Hx348, Gx448 Specifications
Steam Sterilizable Solutions Product Data Sheet
LIQ_PDS_Steam_Sterilizable/Rev.I December 2014
Dissolved Oxygen, pH, and Conductivity
Steam Sterilizable and Autoclavable Dissolved Oxygen, pH, and
Conductivity Sensors:
Allows for fixed or retractable mounting configurations
Measures accurately after many Steam-In-Place (SIP) application
Requires minimal servicing
Installs easily with quick cable-to-sensor disconnections
Provides fast and stable readings
Sensor Mounting hardware designed for typical
biotechnology and pharmaceutical processes:
Meets sanitary requirements
Offers versatile mounting options
Accepts sensors of various insertion lengths
Installs with standard G 1–¼ inch weld-in socket
Analyzers and transmitters with many options:
Two or four wire models
Temperature compensation
4–20 mA, HART®, or Fieldbus communications
Sensor Diagnostic capabilities
Plantweb alerts
High/Low alarms
PID Control
Various mounting styles
Enclosures for various safety levels
Features and Benefits
For many years, Emerson Process Management, Rosemount
Analytical has provided quality on-line instrusments and
sensors used in various industries. This complete line of
steam-sterilizable products caters to the most demanding
processes used in the Biotechnology, Pharmaceutical, and
Food & Beverage industries. Emerson Process Management’s
instruments and sensors are ideal for pH, dissolved oxygen, and
conductivity measurements for batch processes where steamin-place sterilization is performed. The high-performance
sensors offer a long, stable life while requiring only minimal
maintenence. The various mounting accessories have been
specically designed to provide easy sensor access with either
xed weld-in or retractable mounting congurations. All
instruments offer a wide variety of features, allowing the user to
choose the best analyzer/transmitter for their individual process
needs.
Steam Sterilizable Solutions December 2014
Hx338 Steam Sterilizable and Autoclavable
Combination pH Sensor
The Hx338 sensor provides biotechnology and pharmaceutical
processes with the unique Tri-Triple reference technology. The
Tri-Triple reference is made up of three (3) separate peripheral liquid
junctions that make contact with the solution, and then two (2) inner
junctions that protect the reference. The rst junction eliminates
ow sensitivity and maintains a steady reference signal. The three
overall reference junctions work together to help maintain a drift-
free pH signal and ght poisoning ions (i.e. suldes, proteins, or
sugars), even after numerous sterilization cycles.
This sensor is also excellent for other applications, including chemical
reactions or food processing. The Hx338 can be used with the
Ordering Information
Model
Hx338
CODE Description
Temperature Compensation
CODE Description
9160494 1 m (3.3 f t), AS7 connector, bare wire on analyzer end
9160495 5m (16.4 f t), AS7 connector, bare wire on analyzer end
9160496 10m (32.8 f t), AS7 connectore, bare wire on analyzer end
9160497 1 m (3.3 f t), AS7 connector, BNC on analyzer end
9160498 3m (9.8 ft), A S7 connector, BNC on analyzer end
9160499 5m (16.4 f t), AS7 connector, BNC on analyzer end
9200338 S8 cable, free rotating connector, single connector, single pole 5m
9200339 S8 cable, free rotating connector, single connector, single pole 10m
23645-06 15 ft. (4.6m) cable with mating VP connector with BNC on transmitter end
23645-07 15 ft (4.6m) cable with matinig VP connector with bare wires on transmitter end
24281-00 15 ft. cable with mating VP8 connector
24281-01 25 ft. cable with mating VP8 connector
24281-02 2.5 ft. cable with mating VP8 connector
24281-03 50 ft. cable with mating VP8 connector
24281-04 100 ft. cable with mating VP8 connector
24281-05 4 ft. cable with mating VP8 connector
24281-06 10 ft. cable with mating VP8 connector
24281-07 20 ft. cable with mating VP8 connector
24281-08 30 ft. cable with mating VP8 connector
9160478 Insertion assembly 70mm insertion, use 120 mm sensor
9160477 Retractable assembly 70mm insertion, use 225 sensor
9160484 Service kit for insertion mounting assembly
9160486 Service kit for retractable mounting assembly
9160483 15 degree weld-in socket, G 1-1/4 in. thread, 44 mm
SQ 8940 1.5” Triclamp Insertion Assembly
2 RosemountAnalytical.com
pH Sensor
01 120 mm (4.725 in.)
02 225 mm (8.859 in.)
03 325 mm (12.796 in.)
04 400 mm (15.749 in.)
05 425 mm (16.733 in.)
72 PT100 with a VP connector (can be ordered with any length sensor)
PN Cable Accessories
PN Mounting Accessories
insertion or Retractable sensor mounting assemblies or similar
accessories with a PG 13.5 sensor connection, all of which can
be used with a large scale batch processes where steam-in-place
sterilization is performed. For smaller batch processes, it can be
threaded directly into the top plate and atuoclaved if necessary.
The 12mm diameter sensor is offered in ve different lengths for
various insertion depths. The sensor features a PG 13.5 thread for
simple process connection and a single-pole S7 connector plug for
quick disconnect from a mating cable. VP8 cable assembly works
with both VP6 and VP8 sensor connector (-72).
The Hx338 is a 12mm sensor offered
with PG 13.5 threads, a S7 connector
plug, and ve various insertion lengths.
The AS7 connector cable is offered in
various lengths and is terminated with
choice of BNC or bare wires.
The Weld-in Socket (see page 18) is
used to mount the Pressurized Mounting Assembly into tanks or pipes.
The Retractable Mounting Assembly
(see page 16) can be used with
Hx338-02 to achieve insertion and
removal of the sensor without shutting
down the process.
December 2014 Steam Sterilizable Solutions
Hx338 Steam Sterilizable and Autoclavable
Combination pH Sensor
Specifications
pH Range: 2 to 12 (0 to 14 for short periods)
Temperature Range: -14 to 275° F (-10 to 135° C)
Maximum Pressure: 58 psig (600 kPa abs, 4 bar)
Wetted materials: Glass, EPDM
Process Connections: PG 13.5 threads
Sensor Lengths: Choice of 120, 225, 325, 400, or 425 mm
Cable Connector: S7 connector plug, single pole, and VP
connector.
Cable Compatibility: any AS7 connector plug, single pole or S8
cable
PN 24281-06 VP8 connector, 10 ft cable
PN 24281-00 VP8 connector 15 ft cable
Compatible Mounting Accessory: Insertion or retractable
mounting assembly (see pages 15 and 16)
Compatible Analyzers: All Rosemount Analytical pH analyzers/
transmitters.
Sensor Dimensional Drawing
Sample Installation Drawing. A bench top fermentor (bioreactor,
5 L to 50 L) illustrating a top mount plate using the retractable
mounting assembly. Sensor can also be mounted directly into top
mount plate depending on port design.
Sample Installation Drawing. A pilot plant fermentor (bioreactor, 50
L to 500 L) illustrating a side mount conguration using a G 1-1/4
in., 15° weld-in socket and the retractable mounting assembly.
Note that these mounting assemblies can also be used with
dissolved oxygen sensors.
RosemountAnalytical.com 3
Steam Sterilizable Solutions December 2014
Hx348 Steam Sterilizable and Autoclavable
Combination pH Sensor
The Hx348 sensor provides a solution for difcult pH
measurements. This combination pH sensor offers the unique
Tri-Triple reference technology. The Tri-Triple reference is made up
of three (3) separate peripheral liquid junctions that make contact
with the solution, and then two (2) inner junctions that protect
the reference. The rst junction eliminates ow sensitivity and
maintains a steady reference signal. The three overall reference
junctions work together to help maintain a drift-free pH signal
and ght poisonous ions (i.e. suldes), even after numerous
sterilization cycles. Applications for this sensor can be found in the
biotechnology, pharmaceutical, and food processing industries.
The Hx348 pH sensor is a combination pH sensor that uses an S7
connector plug for quick disconnect from the cable. It is offered in
four (4) different insertion lengths in either a disposable or rellable
reference design.
Ordering Information
Model
HX348
CODE Sensor Insertion Lengths
CODE Sensor Design
pH Sensor
01 120 mm (4.73 in.)
02 150 mm (5.91 in.)
03 200 mm (7.88 in.)
04 250 mm (9.85 in.)
10 Disposable and pressurizable, Tri- Triple junction, recommended for use in media containing proteins
11 Rellable and pressurizable, single clog-free platinum junction, recommended for use in media containing suldes.
12 Rellable and pressurizable, Tri-Triple junction, recommended for use in media containing proteins.
The refillable sensor is ideal for critical measurements in difcult
applications – i.e., suldes, proteins, and sugars. It is offered with
either the Tri-Triple reference junction for use in media containing
proteins, or with a single, clog-free, platinum junction for use in
media containing suldes. The special electrolyte has been
developed to inhibit reference contamination.
The disposable sensor has been developed to allow simplicity of
use while still providing a stable pH signal over the long life of the
sensor.
Both the rellable and disposable sensors can be used with the
pressurized mounting accessory or a similar assembly.
The Hx348 is offered in four
different insertion lengths and can
be mounted in process using a
Pressurized
Mounting Assembly (see page 17).
PN Cable Accessories
9160494 1 m (3.3 ft), AS7 connector, bare wire on analyzer end
9160495 5m (16.4 ft), AS7 connector, bare wire on analyzer end
9160496 10m (32.8 ft), AS7 connectore, bare wire on analyzer end
9160497
9160498 3m (9.8 ft), AS7 connector, BNC on analyzer end
9160499 5m (16.4 ft), AS7 connector, BNC on analyzer end
9200338 S8 cable, free rotating connector, single connector, single pole 5m
9200339 S8 cable, free rotating connector, single connector, single pole 10m
9160479 Pressurized Assembly for 120 mm electrode, 70 mm insertion
9160480 Pressurized assembly for 150 mm electrode, 100 mm insertion
9160481 Pressurized assembly for 200 mm electrode, 150 mm insertion
9160482 Pressurized assembly for 250 mm electrode, 200 mm insertion
9160483 15 degree weld-in socket, G 1-1/4 in. thread, 44 mm
9160485 Service kit for pressurized mounting accessory
9160500 500 ml rell solution for code -11 sensors only
9160505 100 ml rell solution for code -12 sensors only
1 m (3.3 ft), AS7 connector, BNC on analyzer end
PN Mounting Accessories
The AS7 connector cable is
offered in various lengths and is
terminated with choice of BNC or
bare wires.
The Weld-in Socket (see page 18)
is used to mount the Pressurized
Mounting Assembly into tanks or
pipes.
The Pressurized Mounting
Assembly (see page 17) is offered
in four different insertion lengths
and can be used for either the
disposable or rellable Hx348
sensor.
4 RosemountAnalytical.com
December 2014 Steam Sterilizable Solutions
Hx348 Steam Sterilizable and Autoclavable
Combination pH Sensor
Specifications
pH Range: 2 to 12 (0 to 14 for short periods)
Temperature Range: -14 to 275° F (-10 to 135° C)
Maximum Pressure: 58 psig (600 kPa abs, 4 bar)
Wetted materials: Glass, Viton
Process Connections: None
Sensor Lengths: Choice of 120, 150, 200, or 250 mm
Cable Connector: S7 connector plug, single pole
Cable Compatibility: any AS7 connector plug, single pole or
S8 cable
Compatible Mounting Accessory: Pressurized mounting
assembly (see page 17)
Compatible Analyzers: All Rosemount Analytical pH
analyzers/transmitters.
Sample Installation Drawing. Pilot plant fermentor (bioreactor)
using the Hx348 and the Pressurized Mounting assembly in a side
mount installation.
Sensor Dimensional Drawing Model Hx348 Non-refillable
Sensor. The Hx348 Disposable Sensor is recommended for typical
installations requiring low maintenance.
Sensor Dimensional Drawing Model Hx348 Refillable Sensor.
The Hx348 Rellable Sensor is recommended for protein- or sulde-
containing media or for feedstocks requiring pressurized,
continuous owing reference.
RosemountAnalytical.com 5
Steam Sterilizable Solutions December 2014
328A Steam Sterilizable and Autoclavable
Combination pH Sensor
The 328A’s ceramic body and silicone rubber seals provide
excellent chemical resistance to many organic compounds
commonly found in biotechnology, pharmaceutical, and food
& beverage applications. This double junction sensor is offered
with 15 feet of cable and is designed to t into a standard
25 mm mounting assembly.
The 328A’s double junction reference cell resists the effects of
electrode poisoning or fouling. Poisoning or foulling can occur
when ions or substances such as chlorides, suldes, and sugars
react with the Ag/AgCl reference element. The double junction reference further isolates the reference element from the
process to extend the sensor’s life.
328A Sensor and the Standard Mounting Adapter.
Ordering Information
The 328A Steam Sterilizable pH Sensor includes combination pH electrode with 15 ft (4.5 m) of special low noise, high temperature
coaxial cable; double junction reference, gelled reference electrolyte; and ceramic electrode body. Requires standard insertion
mounting hardware for 12mm electrode (PN 22924-00). Integral automatic temperature compensation not available. Compatible
with all Rosemount Analytical pH analyzers/transmitters.
Model
328A
CODE Cable Termination
07 Spade
08 None (bare wires)
328A 08 EXAMPLE
Steam Sterilizable pH Sensor
6 RosemountAnalytical.com
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