Rosemount Analytical TUpH 396, TUpH 396P, TUpH 396R Product Data Sheet

Retraction/Submersion/Insertion pH/ORP Sensor

• MINIMUM SENSOR MAINTENANCE due to patented TUpH reference technology1which
ensures steady pH signal when sensor is coated.

• OPTIMUM VERSATILITY by providing various mounting options. Also can be used with all
Rosemount Analytical and other manufacturers’ instruments.

• FIELD PROVEN ACCUGLASS



2

pH glass formulations minimize glass cracking, resulting

in enhanced performance and increased life.

• MAXIMUM SENSOR LIFE because of secondary helical reference pathway

3

which hinders

reference poisoning.

Product Data Sheet

PDS 71-TUpH

September 1999

Models 396/396P/396R

• MODEL 396:

A LARGE SELF CLEANING OPTIONAL FLAT OR
STANDARD HEMI glass bulb electrode in a stain­less steel body, completely sealed by EPDM to
eliminate process intrusion.

• MODEL 396P:

A RUGGED THREADED POLYPROPYLENE BODY for maximum chemi­cal resistance and completely sealed to eliminate process intrusion.

• MODEL 396R:

A TITANIUM RETRACTABLE BODY for insertion depths up to 27 inch­es and easy sensor removal under pressure without process shut­down (ball valve kit shown can be purchased separately).

1

May be protected by U.S. Patent No. 5,152,882, Foreign Patent Pending.

2

ACCUGLASS and TUpH are trademarks of Rosemount Analytical.

3

U.S. and Foreign Patents Pending.

✯✯✯✯

NOW OFFERING MAXIMUM PRESSURE SPECIFICATIONS

of 150 psig (1136 kPa) at 100°C (212°F) ON ALL THREE MODELS

OPTIONAL FLAT BULB

STANDARD HEMI BULB

2 Rosemount Analytical

FEATURES AND
APPLICATIONS

Rosemount Analytical sets a new industry standard
for the life expectancy of pH and ORP sensors with
the introduction of our TUpH Sensors. These low
maintenance, disposable sensors offer long life and
high performance in the measurement of pH in aque­ous solutions in pipelines, open tanks or ponds.

The TUpH Sensors feature a patented large area
polypropylene reference junction for maximum resist­ance to process coatings, generally found in dirty, high
solid applications. In addition, the patented secondary
helical reference pathway serves as added protection
from poisoning ions.

Our TUpH Sensors also feature a standard 1 in. outer
diameter for versatile mounting in flow through, inser­tion or submersion pH and ORP applications.

The Model 396 Sensor is
specifically designed for
improved life in harsh, dirty,
and abrasive applications
such as lime slurry waste
treatment, paper machine
headbox and pigment/dye applications, where large
quantities of suspended solids are present.

The Model 396 is available with custom glass elec­trodes, optional flat or standard hemi glass pH bulb,
to best meet your application needs. Flat glass is
advantageous in abrasive or coating applications that
etch or build up on glass respectively. In coating appli­cations, such as slurries, the flat surface allows the
process flow to act as a scrubbing agent to reduce
coating and maintenance whereas in abrasive appli­cations pitting from silicates and other similar materi­als is minimized by the flat surface to provide longer
life. The hemi bulb is ideal for general purpose use
and for those processes requiring greater accuracy
over the entire pH range.

The sensor is housed in a stainless steel body with
EPDM seals. The simplified construction, designed
with user convenience in mind, does not require elec­trolyte replenishment or any component replace­ment. The Model 396 also features a large glass bulb
for increased resistance to high temperature and
other effects of aging for longer life.

The Model 396 is not available with an integral pre­amplifier. The preamplifier must be in a remote loca­tion or integral to the analyzer/transmitter. Therefore,
the Model 396 is compatible with all Rosemount
Analytical and other manufacturers’ instruments.

The Model 396P Sensor is
specifically designed for improved
life in harsh, dirty applications,
such as sour water waste treat­ment and scrubbers, where a high
performance, low maintenance,
disposable sensor is required.

The sensor is available in two configurations: the stan­dard shrouded tip, in which the pH glass is completely
recessed within the reference junction for abrasive or
rough applications, and the optional slotted tip with a
partially exposed pH glass for viscous or low flow
applications.

The Model 396P features a titanium solution ground,
constructed in an annular design around the pH/ORP
electrode. The solution ground provides advanced
sensor diagnostics for preventative maintenance when
used with the Models 54 pH/ORP analyzer, 1054B
pH/ORP analyzer, and 3081 pH/ORP transmitter. In
addition, the Model 396P sensor can be used with
most non-diagnostic Rosemount Analytical and other
manufacturers’ instruments.

The sensor is housed in a molded polypropylene body
with EPDM seals, making it virtually indestructible and
chemically resistant. Complete encapsulation elimin­ates leakage or high humidity problems traditionally
found in other pH/ORP designs. The simplified con­struction, designed with user convenience in mind,
does not require electrolyte (KCl) replenishment or
any high maintenance troubleshooting procedures.

The Rosemount Analytical Model 396P is available
with an optional integral preamplifier to convert the
high impedance pH or ORP mV signal into a stable,
noise-free signal with transmission capability of up to
three miles.

Percent Linearity

396 396 396P 396R

pH Range GPHT Hemi GPHT Flat GPLR Hemi GPLR Hemi

0-2 pH 94% 95% 94% 94%

2-12 pH 99% 99% 97% 97%

12-13 pH 97% 96% 98% 98%

13-14 pH 92% _ 98% 98%

The Model 396R
Sensor is specifically

designed for improved
life in harsh, dirty appli­cations where a sepa­rate sample stream is
difficult to provide and
greater insertion depths
are required. It is designed for use with a 1-1/4 in. or
1-1/2 in. ball valve for hot tap installation.

The Model 396R is constructed of molded polyprop­ylene housed in a titanium tube with EPDM seals to
provide maximum chemical resistance. The sensor
also features a titanium solution ground for advanced
sensor diagnostics when used with the Model 54 or
Model 3081 pH/ORP Analyzer/Transmitter. These

Rosemount Analytical 3

advanced sensor diagnostics provide preventative
maintenance by notifying the operator of the need for
replacement and cleaning of an aged or fouled sensor,
thus allowing continuous optimum performance.

The sensor also features a slotted tip for protection
from breakage while allowing the process to flow by the
glass electrode for accurate and reliable pH measurement.

The Model 396R is only available without an integral
preamplifier and has 15 ft or 9.5 in. of integral high qual­ity 9 conductor cable. The preamplifier must be housed
in a remote location or in a junction box kit for attach­ment at the rear, cable end of the sensor (order sepa­rately) or must be integral to the Analyzer/Transmitter.
The Model 396R is compatible with all Rosemount
Analytical and other manufacturers’ instruments.

SPECIFICATIONS

MODEL 396 MODEL 396P MODEL 396R

Measurements and Ranges pH: 0-14 pH: 0-14 pH: 0-14

ORP: -1500 to 1500 mv ORP: -1500 to 1500 mv

Available pH ACCUGLASS GPHT hemi bulb or GPLR hemi bulb GPLR hemi bulb

Types GPHT flat bulb

Wetted Materials 316 SST, Polypropylene, Titanium, Polypropylene, Titanium, Polypropylene,

EPDM, glass EPDM, glass: EPDM, glass:

platinum (ORP only) platinum (ORP only)

Process Connection None, use 1 in. NPT process 1 in. MNPT front and rear None, use 1-in. process connector

connector, PN 23166-00 or facing threads or ball valve kit (1-1/2 in.
23166-01 (sold separately) or - 1/4 in.) (sold separately)

Temperature Range 0-100°C (32-212°F) 0-100°C (32-212°F) 0-100°C (32-212°F)

Pressure Range-

100-1136 kPa (0-150 psig) 100-1136 kPa (0-150 psig) 100-1136 kPa (0-150 psig)

Hemi bulb

Pressure Range-

100-790 kPa (0-100 psig) — —

Flat bulb

Maximum Pressure at Not Applicable Not Applicable Code 21: 542 kPa (64 psig)

Retraction or Insertion Code 25: 343 kPa (35 psig)

Minimum Conductivity 75 µS/cm, nominal 75 µS/cm, nominal 75 µS/cm, nominal

100 µS/cm 100 µS/cm 100 µS/cm

Integral Cable 15 ft coaxial with BNC Code 01: 25 ft 11 Standard 15 ft coaxial

conductor Code 60: 9.5 in. coaxial

Code 02: 15 ft coaxial with BNC

Code 61: 9.5 in. coaxial

Preamplifier Options Remote Remote or Integral Remote

Weight/Shipping Weight 0.45 kg/0.9 kg (1 lb/2 lb) 0.45 kg/0.9 kg (1 lb/2 lb) Sensor: Code 21:

0.9 kg/1.40 kg (2.0 lb/3.0 lb)
Code 25: 1.40 kg/1.80 kg

(3.0 lb/4.0 lb)

Ball Valve PN 23240-00:

2.25 kg/3.20 kg (5.0 lb/7.0 lb)
Junction box; 1.40 kg/1.80 kg

(3 lb/4 lb)

DIMENSIONAL DRAWINGS: Model 396P

4 Rosemount Analytical

DIMENSIONAL DRAWINGS: Model 396 with Optional Connector

168.28

6.63

28.7

1.13

25.4

1.0

53.98

2.13

108

4.25

OPTIONAL
CONNECTOR ASSY
P.N. 23166-00/-01

CAUTION
LABEL

INSERTION

SUBMERSION

Standard Hemi-bulb
pH ELECTRODE

Standard Hemi-bulb pH
electrode with slotted tip

Optional Flat
Bulb pH
Electrode

O.D. RETRACTION
STOP COLLAR

O.D.

HOUSING
STAINLESS STEEL TYP.

CAUTION LABEL

1”✕1” NPT MALE
CONNECTOR

HEX NUT
316 SST TYP.

CABLE

CABLE

MILLIMETER

INCH

MILLIMETER

INCH

Metal Process Connector PN 23166-xx (xx = 00 for 316
SST and xx = 01 for titanium) can be used for insertion
or submersion Model 396 sensor connection to 1-inch
tee fittings. It also must be used to connect Model 396R
to ball valve PN 23240-00 or directly to the process.

The metal process connector gives the sensor various inser­tions depths, depending on where the user locates the com­pression fitting. Also the threads can be switched to face the
cable end of the sensor for connection to submersion pipes.