Rosemount Analytical 399 Data sheet

Models 399 and 399VP

General Purpose pH/ORP Sensors

Product Data Sheet

PDS 71-399/rev.J
April 2009

1

Tefzel and Viton are registered trademarks of E.I. du Pont de Nemours and Co.

2

ACCUGLASS is trademark of Rosemount Analytical.

• SMART enabled

• NEW OPTIONS to meet a variety of applications requirements,
including: processes with low conductivity, hydrofluoric acid,
high pH, and reference poisoning elements

• VP8 QUICK CABLE-TO-SENSOR RELEASE, provided by the
watertight VP8 multiple-pin connector, eliminates cable twisting.

• EXTENDED SENSOR LIFE provided by double or triple
junction reference cell in process solutions containing
poisoning ions (special options).

• OPTIMUM VERSITILITY WITH VARIOUS MOUNTING OPTIONS
provided by one-piece construction with process threads in
two places.

• MAXIMUM CHEMICAL RESISTANCE provided by
rugged Tefzel

1

body, completely sealed to eliminate

sensor leakage.

• ENHANCED PERFORMANCE AND INCREASED LIFE
with minimized glass cracking provided by field-proven
A

CCUGLASS

®

2

pH glass formulations.

MODEL 399

Insertion/Submersion

Sensor with integral cable

MODEL 399VP

Insertion/Submersion Sensor

with new VP8 connector

(uses mating VP8 cable)

FEATURES AND APPLICATIONS

General purpose pH/ORP sensor model 399/399VP
is now offered with SMART capabilities. SMART

option becomes enabled when used with the Model 1056,
1057 Analyzers and on 6081P wireless transmitter. The pH-loop
capabilities include auto-recognition of the SMART sensor,
automatic upload of calibration data and associated time
stamp, historical recording of pH diagnostics (slope, offset,
reference impedance, glass impedance). This trending data
allows technicians to predict frequency of maintenance and
estimate sensor life for a particular process condition.
Additional SMART features include factory calibration,
resetting SMART sensor calibration data with user menus
without power cycling, and manufacturing information.

The reference junction aids in the sensor’s resistance
to poisoning ions and helps prolong sensor life. Models

399 and 399VP are provided with a double junction refer­ence, which protects the reference element from poisoning

ions — such as ammonia, chlorine, cyanides, and sulfides
— in the process. When large amounts of poisoning agents
are present, an optional triple junction may be ordered to
help prolong the sensor life. Both models, in either the dou­ble or triple reference configuration, are made with an outer
ceramic junction constructed in an annular design around
the pH/ORP-sensitive membrane.

The AccuG

LASS pH glass formulations exceed industry

standards. The AccuGlass pH glass is a result of many

years of glass research resulting in a formulation which has
been found to increase the life of the sensor. Unlike other
pH glasses presently on the market, this glass resists crack­ing especially at higher temperatures and reduces sodium
ion error commonly found in high pH applications. Overall,
the AccuGlass formulation enhances the sensor perform­ance to measure pH more accurately and have a longer
sensor life than ever before.

FEATURES AND APPLICATIONS (cont.)

A choice of pH glass electrodes is available to best
meet various application needs. Four types are avail-

able: hemi bulb, flat bulb, HF resistant, and Hi pH glass.
The A

CCUGLASS hemi bulb is the standard glass offered

on both models and can be used for most applications.
The hemi bulb is also found on the HF resistant and Hi pH
glass options. The A

CCUGLASS flat glass option can be

used in abrasive or coating applications that etch or build
up on glass, respectively.

NEW - SMART is standard option. A preamplifier converts
the high impedance pH signal into a stable, noise-free
signal and must be used with all pH sensors. The Model
399/399VP offers the Models 399-10, 399-14, 399-34 and
399VP (-70) with an integral SMART preamplifier. Other
Models can use a remote preamplifier, integral to the
analyzer/transmitter or in a remote junction box. All pre­amplifiers have a transmission capability of up to three
miles.The Rosemount Analytical preamplifier method has
become the industry standard for pH/ORP measurement
reliability.

Model 399VP is offered with a watertight sensor-to­cable connector which eliminates re-wiring and cable
twisting when replacing sensors. The Variopol VP multi-

ple pin connector is an integral part of each sensor model
and uses a mating VP cable; see page 5 for example.
Once the cable is installed and wired to the analyzer,
sensors are easily replaced without replacing the cable
and without rewiring the analyzer. Also the cable can be
disconnected from the sensor before removal from the
process which eliminates cable twisting. VP8 cable
assembly works with both VP8 and VP6 sensor connector.

Models 399 and 399VP are housed in a molded Tefzel
body with Viton o-rings, making each sensor 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.

Installation is easily achieved through the wide variety
of mounting configurations. Both Models feature 1 inch
(MNPT) front and rear facing connections for insertion,
submersion, or flow-through pH and ORP applications.

New options are available for special application
needs, including high purity/low conductivity water, heavy

reference poisoning, and continuous high or low tempera­ture processes. Consult the factory or your local sales
representative for more details on these new options.

PHYSICAL PERFROMANCE AND
SPECIFICATIONS

Sensor Type:: General purpose 399, 399VP
Measured Range: pH: A

CCUGLASS 0-14

ORP: -1500 to +1500 mV

Percent Linearity Over pH Range:

Operating Temperature: 0° to 85°C (32° to 185°F)

Automatic temperature compensation 0° to 85°C (32°
to 185°F), Temperature compensation is not required
for 399 ORP when used with Models 1060, or 1181
ORP

Maximum Pressure: 790 kPa [abs] (100 psig) at 65°C (see

Graph 1 below)

Flow Rate: up to 2 ft/sec
Materials of Construction: Tefzel, glass, ceramic, & Viton
Materials of ORP: Platinum
Process Connections: 1 in. MNPT, 2 places
Integral Cable: 10 or 32 ft cable with integral preamp

(remote preamp) 10 ft cable with remote preamp

VP8 Cable: use PN 24281-00
Weight/Shipping Weight: 0.45 kg/0.9 kg (1 lb/2 lb)

• High pH glass provides greater accuracy over 12.5 pH

• HF glass provides improved resistance to hydrofluoric
acid up to 300 ppm

GPLR Hemi Bulb Flat Bulb

1-2 pH 94% 93%

2-12 pH 99% 98%

12-13 pH 97% 95%

13-14 pH 92% –

GRAPH 1. Pressure/Temperature Operating Range

for Models 399 and 399VP

2

Both models are combination sensors (pH, reference, and
temperature within sensor body) and measure pH or ORP

(Oxidation/Reduction Potential) of aqueous solutions in
pipelines, open tanks, or ponds. Models 399 and 399VP are
suitable for virtually all applications and are compatible with
Rosemount Analytical and other manufacturers’ instruments.

3

DIMENSIONAL DRAWINGS FOR MODEL 399

TEMP COMP

1 IN. MNPT

1 IN. MNPT

1 IN. WRENCH
OPENING

pH

Dia

25

1

80

3.15

144

5.67

Option -71

Flat bulb sensor

MILLIMETER

INCH

DIMENSIONAL DRAWING FOR MODEL 399VP

MILLIMETER

INCH

PN 24281-00

4

FLOW THROUGH INSTALLATION

1-1/2 IN. SCHED 80
CPVC TEE WITH 1 IN.
FNPT CONNECTIONS
(PN 2002011)
STRAIGHT FLOW
SHOWN

1-1/2 IN. PIPE “Y”

1-1/2 IN. X 1 IN.
REDUCING BUSHING

1-1/2 IN. SCHED 80
CPVC WITH VIEW OR
CLEANING PORT

FLOW

ANGLE FLOW
SHOWN

SENSOR SHOULD
ALWAYS BE
MOUNTED AT
LEAST 10° ABOVE
HORIZONTAL

INSERTION INSTALLATIONS

SIDE-OF-TANK
INSTALLATION

PIPELINE INSTALLATION (WITH
FLANGE CONNECTIONS)

1 IN. MNPT

399 with Jet Spray Cleaner (PN 12707-00) for Submersion Installations

This accessory is especially useful for keeping the sensor clean in dirty ponds or tanks. It can be mounted using

the Handrail Mounting Assembly or a similar submersion accessory.

INSTALLATIONS AND ACCESSORIES SPECIFICATIONS

5

SENSOR SHOWN IN HANDRAIL MOUNT-

ING ASSEMBLY (PN 11275-01)

MILLIMETER

INCH

Tee PN 915240-03, -04, or -05. Tee is
available with 3/4 in., 1 in., or 1-1/2 in.
NPT process connection threads.

Side view of Tee PN 915240-03, -04, or -05
with Model 399 or 399VP shown in middle of
process flow.

VP8 Cable, instrument end

VP8 Cable sensor end

6

ORDERING INFORMATION

The Model 399 pH/ORP Sensor is available with custom glass electrodes housed in a molded

Tefzel body with 1 in. MNPT threads suitable for insertion, submersion or flow through
installation. The sensor includes a general purpose hemi bulb pH electrode (flat bulb
optional) or a platinum ORP electrode and a double junction gel filled reference elec­trode. The Model 399 pH is available with an hermetically sealed SMART pream­plifier (-10, -14, -34) options SMART is the standard preamplifier option. The
Model 399 ORP is only available with an integral preamplifier. Automatic
temperature compensation is standard with the Model 399 pH, but is not
required on the Model 399 ORP (except when used with the Model
1054A ORP Microprocessor Analyzer). Variable cable lengths are avail­able for both the 399 pH and 399 ORP.

The Model 399 insertion/
submersion sensor with
integral cable is offered
with or without a built-in
preamplifier (SMART).

MODEL

399 GENERAL PURPOSE pH SENSOR

399 -14 -73 EXAMPLE

Code

Specialized Glass Types (optional - choose one)
73 High pH (improved accuracy above 12.5 pH)
15 HF Resistant (up to 300 ppm)
71 GPLR Flat bulb (for abrasives)

Code

Option -62 only available with oprion -09

–

no selection
62 Cable prep’d wo, BNC for wiring to Models: 54, 81, 2081, 3081, 4081, 5081, XMT, 1055

Code 399 pH (GPLR hemi bulb) Preamplifier/Cable (Required Selection)

01 10 ft cable with integral preamp for Models 1181pH and 1050
05 32 ft cable with integral preamp for Models 1181pH and 1050
07 10 ft cable with integral preamp for Model 1054A/B and 2081 pH
08 32 ft cable with integral preamp for Model 1054A/B and 2081 pH
02 10 ft coax cable for remote preamp, 3K ohm TC (Models 1181, 1050, and 1003)
04 10 ft cable for remote preamp, Pt100 TC (Solu Cube)
09 10 ft coax cable for remote preamp, Pt100 TC (Model 1054A/B)
12 20 ft cable for Model SCL-P (Formerly pH201)
13 100 ft cable for Model SCL-P (Formerly pH201-Z100)
09 10 ft coax cable for remote preamp, Pt100 RTD
10 10 ft cable with integral SMART for Models 54e, 81, 1055, 3081, 4081, 5081, and Xmt
14 32 ft cable with integral SMART preamp for Models 54e, 81, 1055, 1056, 1057, 3081, 4081, 5081,6081 and Xmt
30 ORP sensor 32 ft cable with integral preamp for Models 1181OR and 1060
32 ORP sensor 32 ft cable with integral preamp for Model 1054A/B ORP
33 ORP sensor 20 ft cable for for remote preamp for Models SCL-Q, 54e, 81, 1055, 3081, 4081, 5081, and Xmt
34 ORP sensor 32 ft cable with SMART preamp for Models 54e, 81, 1055, 1056, 1057, 3081, 4081, 5081, 6081 and Xmt

Code

Specialized Reference Fills - valid only with standard hemi glass (optional - choose one) Not available with

(-15, -71, -73)

–

no selection

301 Low ionic strength
302 Triple reference for improved resistance to poisoning ions (sulfide & heavy metals)
303 Low temperature storage (below freezing)

Optional Flat

Bulb Tip

Examples of pH sensing tip offerings

Standard Hemi

Bulb Tip

7

1. Mounting Accessories (optional)

PN 23242-02, Mounting adapter kit, 1/2 in. MNPT process connection, 1 in. x 3/4 in. sensor adapter
PN 915240-03, PVC flow through tee, 3/4 in. NPT process connection
PN 915240-04, PVC flow through tee, 1 in. NPT process connection
PN 915240-05, PVC flow through tee, 1-1/2 in. NPT process connection
PN 24091-00, Acrylic low flow cell
PN 2002011, 1-1/2 in. CPVC tee with 1-in. FNPT connection
PN 9320057, Pipe mount union, 1 in. x 1 in. PVC
PN 11275-01, Sensor handrail assembly

2. Junction Boxes (optional)

Remote Junction Boxes (to extend sensor to analyzer distances)

PN 23555-00, includes preamplifier for Models 54e, 81, 3081, 4081, 5081, and Xmt
PN 22719-02, NEMA 4X, Weatherproof junction box for cable extension
PN 23309-03, use with 1181 and 1050 compatible preamplifier
PN 23309-04, use with 1054A/B, 2081 compatible preamplifier

3. Preamplifiers (used to amplify signal when mounting sensor further than 15 ft from the analyzer)

PN 22698-02, Plug in preamplifier, 1181/1050 compatible (use with junction box PN 23309-03)
PN 22698-03, Plug in preamplifier, 1054/1054A/1054B/2081 compatible (use with junction box PN 23309-04)

4. Extension cables (used with remote junction boxes)

PN 23646-01, 11 conductor cable, shielded, prepped
PN 9200000, 4 conductor cable, shielded, unprepped

5. Other optional accessories

PN 12707-00, Jet spray cleaner
PN 2001492, Stainless steel tag, specify marking (formerly Code -11)
PN 9210012, Buffer solution, 16 oz, 4.01 pH
PN 9210013, Buffer solution, 16 oz, 6.86 pH
PN 9210014, Buffer solution, 16 oz, 9.18 pH
PN R508-8OZ, Standard, 474 mV, 8 oz, (for ORP only)

FOR FIRST TIME 399 OR 399VP* INSTALLATIONS, WE RECOMMEND USING THE FOLLOWING GUIDE:

* Also requires mating VP cable — see 399VP Ordering Information.

ORDERING INFORMATION

The Model 399VP pH/ORP Sensor has similar features to Model 399. The

Model 399VP is SMART enabled (-70) and offered with a Variopol (VP)
connector. A mating VP cable must be purchased separately. A remote
preamplifier must be used if non-SMART option is selected, in case
the distance to the analyzer exceeds 15ft. SMART amplifier is the
standard option. VP8 cable is required for SMART communication.

A Variopol cable is required for all new installations. See below for cable
selection. VP8 (8 pin) connector requires VP8 cable. The VP8 cable assembly
will work with VP6 (6 pin) sensor connector.

399VP -09 -71 EXAMPLE

The Model 399VP insertion/
submersion sensor with VP
(Variopol) Connector.

MODEL

399VP GENERAL PURPOSE pH SENSOR

Code Temperature Compensator (GPLR hemi bulb) (Required Selection)

02 3K ohm TC (Models 1181, 1050, and 1003)
09 Pt100 TC (Models 1054, 2054, 2081, 54, 81, 1055, 1056, 1057, 3081, 4081, 5081, 6081 and Xmt)
33 ORP

Code Glass Type and preamplifier option (optional - choose one; not valid with special application codes)

15 HF Resistant
71 GPLR Flat bulb
73 High pH

Code

Special Applications - valid with only standard hemi glass (optional - choose one)
302 Heavy reference poisoning ions (triple reference junction)
303 High temperature spiked or Low temperature storage

Credit Cards for U.S. Purchases Only.

The right people,
the right answers,
right now.

ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE

http://www.raihome.com

Specifications subject to change without notice.

Emerson Process Management

Liquid Division

2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: [phone]
Fax: [phone]

http://www.raihome.com

© Rosemount Analytical Inc. 2009

ACCESSORIES

PART NUMBER DESCRIPTION

23645-06 15 ft cable with mating VP6 connector, prepped with BNC on analyzer end
23645-07 15 ft cable with mating VP6 connector, prepped without BNC on analyzer 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

915240-03 Process tee with NPT connection threads

22719-02 Junction box
12707-00 Jet cleaner
23242-02 Insertion adapter
24091-00 Low flow cell