DolpHin Series Models PH10 and ORP10 Electrochemical Sensors and Accessories for pH and ORP Measurements
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Product Specifications PSS 6-1C3 A
DolpHin™ Series
Models PH10 and ORP10 Electrochemical Sensors and
Accessories for pH and ORP Measurements
The DolpHin Series are precision electrochemical sensors used in conjunction with a widely accepted set of
mounting accessories to measure pH and ORP. They are rugged, easy-to-use devices that are particularly well
suited for use in high temperature installations.
INTRODUCTION
The DolpHin Series are a family of high performance high temperature electrolyte, reference electrode with
pH and ORP sensors with extensive features and Nafion ion barrier, ultra fast automatic temperature
accessories. compensation, and a single rugged body that fits the
Breakthrough performance in stability, accuracy, and widest variety of mounting accessories. The elegant
long life makes DolpHin the premier pH and ORP DolpHin design delivers an easy-to-use sensor with
sensor for on-line process applications. unmatched pH and ORP measurement performance.
Laboratory testing and extensive field trials have FEATURE HIGHLIGHTS
proven DolpHin’s superior performance. It outlasts • Unique pH glass - exceptionally stable, remains
other sensors in high temperature and temperature fast and accurate after severe temperature
cycling applications up to 121°C (250°F). It remains cycling (121°C/250°F)
fast and accurate, while conventional pH sensors lose
• Proven high stability, high accuracy, and long life
sensitivity and are slow to respond to pH changes.
Foxboro engineers have formulated a unique pH • Easy-to-use body design simplifies installation,
glass (patent pending) which makes DolpHin calibration, maintenance, and replacement
exceptionally stable, accurate, and long lasting, even • More reliable measurements permit tighter
in the harshest process applications. process control
Each component in the DolpHin sensor has been • Longer life plus easy mounting reduces
designed to maximize ease-of-use, long life, and maintenance costs
accuracy, including: the precision reference junction,
PSS 6-1C3 A
Page 2
GENERAL DESCRIPTION SENSOR BODY
The DolpHin Series consists of Model PH10 for pH The sensor is offered in a PVDF(1) body material.
measurements and Model ORP10 for ORP PVDF is an ideal material because of its excellent
measurements. These models share many of the pressure, temperature, and mechanical properties. It
same characteristics, such as body type, internal is virtually immune to attack from most chemical
reference electrode, temperature elements, cables, solutions.
options, and accessories. The sensor body has a single, sealed probe design,
The difference between the two models is in the with no replaceable parts, making it a low
measuring electrode. Model PH10 offers four pH maintenance sensor.
electrode choices, and Model ORP10 offers two ORP The glass electrode pH models contain no process
electrode choices. Each of these electrode types is wetted metal.
discussed in the Model Code Selection Guide
section. The body has two integral 3/4 NPT mounting threads;
one at the cable end for submersion or ball valve
The commonality of body type allows users to insertion mounting, the other near the sensing end for
standardize on DolpHin pH and ORP sensors while in-line mounting.
enjoying the flexibility to install them in any way
appropriate for the application. Every DolpHin sensor In the upper body of the sensor, there are two
fits with any of the ball valve insertion assemblies, grooves, used to adapt to the Universal mounting
bushings, tees, and other accessories shown in this adapters shown in the Accessories section. The
document. Universal Adapter set provides an easy means for
installing, removing, and replacing the sensor.
DolpHin sensors are easy to use; specifically, easy to
install, replace, calibrate, and maintain. The TYPICAL pH AND ATC RESPONSE
“disposable” design means low cost of maintenance, The following test data is typical of DolpHin
and elimination of internal spare parts inventories. performance and relative to premium process pH
The sensor is mechanically rugged, chemically and sensors supplied by other manufacturers.
thermally resistant, and can withstand extended
Slope % is a measure of the accuracy and sensitivity
exposure to high temperature applications, thereby
of a pH sensor. Slope % is the difference, in mV, of a
making it ideally suited for the harshest industrial
sensor’s output in two different pH buffers as
applications.
compared to the expected or ideal mV difference
TRANSMITTER/ANALYZER COMPATIBILITY between the same two buffers. Sensors are typically
DolpHin sensors are fully compatible with Foxboro 100% of expected value when new, and the slope %
Model 870ITPH Intelligent Transmitters and Model deteriorates as the sensor ages; 80% is frequently
875PH Intelligent Analyzers. used as the low limit acceptable for a process
application. High temperature and temperature cycles
When used with the Foxboro Intelligent devices, cause pH sensitive glass to lose sensitivity more
DolpHin supports sensor diagnostics, including: rapidly. The two significant effects that a pH user sees
• Broken glass electrode is loss of Slope % and slowing of the response to pH.
• Coating of sensing surface The superiority of the DolpHin high temperature
• Aging (slope degradation) electrode is clearly demonstrated in Figures 1, 2,
• Liquid leakage into sensor body and 3.
• Preamp failure
• ATC, temperature element failure. Accurate pH measurement is also affected by the
sensor’s ability to provide fast, accurate temperature
The coating and aging diagnostics are useful in measurement for temperature compensation. The
scheduling preventive maintenance. And all the DolpHin sensor includes a temperature element that
diagnostics are useful in ensuring a reliable pH or has been optimized for speed of response, and it is in
ORP measurement. DolpHin sensors are also close thermal contact with the process liquid, as well
compatible with older models 873PH and 873DPX as the pH and reference electrodes. DolpHin
analyzers, although with a restriction on temperature superiority for both the standard temperature element
elements (see Model Code Selection Guide). and the ultra fast enhanced element is shown in
Analyzer 873APH is compatible with DolpHin Model Figure 4.
PH10 with glass electrodes and 100 Ω temperature
elements only.
(1) PVDF is polyvinylidene fluoride, commercially available as Kynar.
PSS 6-1C3 A
Page 3
% SLOPE DEGRADATION OVER TIME WHILE
SUBJECTED TO TEMPERATURE CYCLES OF 100˚C
100
90
% SLOPE
80
= DolpHin
70 = SUPPLIER "A"
= SUPPLIER "B"
60
50
0 5 6 10 12 15 16 20 22 25
NUMBER OF DAYS AT 100˚C
Figure 1. pH Response, Aging, 100°C
pH RESPONSE TIME
AFTER EXPOSURE TO TEMPERATURE CYCLES OF 100˚C
360
320
280 = DolpHin
TIME, SECONDS
= SUPPLIER "A"
240
= SUPPLIER "B"
200
160
120
80
40
0
0 5 6 10 12 15 16 20 22 25
NUMBER OF DAYS AT 100˚C
Figure 2. pH Response Time, 100°C
PSS 6-1C3 A
Page 4
ELECTROMETRIC SPEED OF ATC - TEMPERATURE RESPONSE TIME
RESPONSE AFTER 120 HOURS AT 121˚C 25˚C TO 100˚C
+500 100
+400 90
X 80
+300
X
70
MEASUREMENT IN mV
X
TEMPERATURE, ˚C
X X
+200 X X
60 X
X
+100
50
X
0.00 40
= DolpHin = DolpHin - Standard
X X = SUPPLIER "A" = DolpHin - Enhanced
-100 30 Speed
= SUPPLIER "B"
X = SUPPLIER "C" = SUPPLIER "A"
20
= SUPPLIER "B"
-200
X = SUPPLIER "C"
10
-300
0 1 2 3 4 5 6 0
TIME, MINUTES -2 -1 0 1 2 3 4 5 6
TIME, MINUTES
Figure 3. pH Response Time, 121°C Figure 4. Temperature Response Time, 25° to 100°C
PSS 6-1C3 A
Page 5
AUTOMATIC TEMPERATURE COMPENSATION minimizing poisoning of the electrode and preventing
ATC, utilizing a resistance temperature detector silver ion from migrating to the external junction and
(RTD), is a built-in feature in all DolpHin Sensors. causing clogging.
Either 2- or 3-wire, 100 or 1000 Ω platinum RTDs, or
EASE OF USE
a Balco 2-wire, 3 kΩ RTD may be selected. These
RTDs are available with an enhanced response Experienced pH users know that sensor maintenance
speed. Refer to Model Code Selection Guide section. can be time-consuming and costly. DolpHin Series
sensors provide extended service life, thus reducing
INTERNAL PREAMPLIFIER the number of maintenance calls. However, the
The sensor is offered with or without an internal sensor occasionally requires removal from process
preamplifier. The preamplifier converts the high for calibration, possibly cleaning, and eventually
impedance pH signal to a low impedance signal, replacement.
which is less prone to interference. With the internal DolpHin features and accessories are set up to make
preamplifier, the 15.2 m (50 ft) transmission distance sensor maintenance quick and easy. The Variopin
can be extended to 152 m (500 ft) as shown in the quick cable connector allows the sensor to be easily
“PHYSICAL SPECIFICATIONS” section. Refer also to disconnected from the cable.
Model Code Selection Guide section. The sensor may be mounted in many different ways.
PRECISION DOUBLE JUNCTION REFERENCE Typical mounting configurations are listed below and
ELECTRODE shown in Figure 5:
The external, process wetted reference junction is • In situ with 3/4 NPT Mounting
ceramic material with ultra fine porosity and small • With a Universal Bushing Assembly
surface area. This style junction provides minimum • Universal Tri-Clamp Connection Assembly
variability of junction potential which contributes to • In Sample Line via a Flow Chamber
noise and drift problems typically seen in junctions • In Sample Line via a Tee Kit and Bushings
with large surface area. • In line via a Variable Insertion Assembly
• In line via a Ball Valve Assembly with Purge Ports
Internal electrolyte is a high temperature gel that
resists poisoning. The sensors’ process connections are also backward
compatible with most existing Foxboro and other
The reference electrode is a silver/silver chloride half
sensors presently in the field.
cell. The reference electrode is encased in a Nafion
ion barrier which allows charge transfer while
BASIC UNIVERSAL UNIVERSAL IN SAMPLE IN SAMPLE IN LINE VIA IN LINE VIA
SENSOR BUSHING, TRI-CLAMP LINE VIA LINE VIA A VARIABLE A BALL VALVE
3/4 NPT ADJUSTABLE CONNECTION A FLOW A TEE KIT INSERTION ASSEMBLY WITH
1 NPT ASSEMBLY CHAMBER ASSEMBLY PURGE PORTS
Figure 5. Typical Sensor Mounting Configurations
PSS 6-1C3 A
Page 6
MODEL CODES
Model Code – pH Sensor
Description Model
DolpHin pH Sensor PH10
pH Electrode Type
Domed, High Temperature, Glass Bulb with Protective Guard -1
Domed, High Temperature, Glass Bulb without Protective Guard -2
Flat Ruggedized Glass -3
Antimony -4
Preamplifier
None N
Internal Preamplifier (a)(b) P
Temperature Compensation
2-Wire, 100 Ω Platinum RTD 1
3-Wire, 1000 Ω Platinum RTD (b) 2
2-Wire, 100 Ω Platinum RTD, Enhanced Response Speed 3
3-Wire, 1000 Ω Platinum RTD, Enhanced Response Speed (b) 4
2-Wire, 3 kΩ Balco RTD (f) 5
Sensor Termination
10 ft (3.05 m) Integral Cable Terminated with Crimped-on Straight Pin Lugs A
10 ft (3.05 m) Integral Cable Terminated with Variopin Quick Connector (b)(c) B
Variopin Quick Connector Integral to Sensor (b)(c) Q
Optional Selections
EPDM(1) O-Rings (d) -E
Chemraz(2) O-Rings (d) -C
Integral Std. Temp Sensor Cable, 20 ft (6.1 m) long (e) -2
Integral Std. Temp Sensor Cable, 30 ft (9.1 m) long (e) -3
Integral Std. Temp Sensor Cable, 40 ft (12.2 m) long (e) -4
Integral Std. Temp Sensor Cable, 50 ft (15.2 m) long (e) -5
Integral High Temp Sensor Cable, 10 ft (3.05 m) long (a)(e) -1H
Integral High Temp Sensor Cable, 20 ft (6.1 m) long (a)(e) -2H
Integral High Temp Sensor Cable, 30 ft (9.1 m) long (a)(e) -3H
Integral High Temp Sensor Cable, 40 ft (12.2 m) long (a)(e) -4H
Integral High Temp Sensor Cable, 50 ft (15.2 m) long (a)(e) -5H
Examples: PH10-1N3B-E2H
(a) High Temperature cable not available with Preamplifier Code “P”.
(b) Selection of Preamp (“P”), with 3-wire RTD (“2” or “4”) and with Variopin Quick Connector (“B” or “Q”) may not be made at the
same time. Any two are allowed together, but not all three.
(c) Requires mating patch cord with integral Variopin Quick Connector, if not customer supplied.
(d) Standard O-ring material is Viton.
(e) Cable options applicable to Sensor Termination Codes “A” and “B” only.
(f) Contact Foxboro for availability.
(1) EPDM is Ethylene-Propylene Terpolymer, also known as EPR (Ethylene-Propylene Rubber).
(2) Chemraz is a Perfluoroelastomer.
PSS 6-1C3 A
Page 7
Model Code – ORP Sensor
Description Model
DolpHin ORP Sensor ORP10
ORP Electrode Type
Platinum -1
Gold -2
Preamplifier
None N
Internal Preamplifier (a)(b) P
Temperature Compensation
2-Wire, 100 Ω Platinum RTD 1
3-Wire, 1000 Ω Platinum RTD (b) 2
2-Wire, 100 Ω Platinum RTD, Enhanced Response Speed 3
3-Wire, 1000 Ω Platinum RTD, Enhanced Response Speed (b) 4
2-Wire, 3 kΩ Balco RTD (f) 5
Sensor Termination
10 ft (3.05 m) Integral Cable Terminated with Crimped-on Straight Pin Lugs A
10 ft (3.05 m) Integral Cable Terminated with Variopin Quick Connector (b)(c) B
Variopin Quick Connector Integral to Sensor (b)(c) Q
Optional Selections
EPDM O-Rings (d) -E
Chemraz O-Rings (d) -C
Integral Std. Temp Sensor Cable, 20 ft (6.1 m) long (e) -2
Integral Std. Temp Sensor Cable, 30 ft (9.1 m) long (e) -3
Integral Std. Temp Sensor Cable, 40 ft (12.2 m) long (e) -4
Integral Std. Temp Sensor Cable, 50 ft (15.2 m) long (e) -5
Integral High Temp Sensor Cable, 10 ft (3.05 m) long (a)(e) -1H
Integral High Temp Sensor Cable, 20 ft (6.1 m) long (a)(e) -2H
Integral High Temp Sensor Cable, 30 ft (9.1 m) long (a)(e) -3H
Integral High Temp Sensor Cable, 40 ft (12.2 m) long (a)(e) -4H
Integral High Temp Sensor Cable, 50 ft (15.2 m) long (a)(e) -5H
Examples: ORP10-1P4A-C5
(a) High Temperature cable not available with Preamplifier Code “P”.
(b) Selection of Preamp (“P”), with 3-wire RTD (“2” or “4”) and with Variopin Quick Connector (“B” or “Q”) may not be made at the
same time. Any two are allowed together, but not all three.
(c) Requires mating patch cord with integral Variopin Quick Connector, if not customer supplied.
(d) Standard O-ring material is Viton.
(e) Cable options applicable to Sensor Termination Codes “A” and “B” only.
(f) Contact Foxboro for availability.
PSS 6-1C3 A
Page 8
MODEL CODE SELECTION GUIDE
PH10 ELECTRODE TYPE SELECTIONS PH10-3 Electrode – Flat Ruggedized Glass
PH10-1 Electrode – Domed Glass Bulb with Completely flat, smooth sensing surface. This glass
Protective Guard electrode is designed for overall ruggedness and is
Unique pH glass formulation provides full 0 to14 pH especially well suited for applications with solids that
range and high temperature operation up to coat or wear on the electrode. The smooth sensing
121°C/250°F. Fast and accurate pH response surface tends to be self-cleaning by the action of the
suitable for severe temperature and harsh chemical process flow. This design is also well suited to
applications. Low sodium ion error. Suitable for low minimize breakage due to handling. This electrode
conductivity water down to 10 µS/cm. Built-in pvdf selection is best suited for applications in the
guard protects bulb from breakage while in service 2 to 12 pH range with temperatures less than 85°C
and while handling during installation and (185°F). See Figure 8.
maintenance. See Figure 6.
Figure 8. PH10-3 Electrode, Flat Ruggedized Glass
Figure 6. PH10-1 Electrode, Domed Bulb PH10-4 Electrode – Antimony
with Protective Guard Metallic antimony electrode is available for
PH10-2 Electrode – Domed Glass Bulb without applications containing hydrofluoric acid (HF). The
Protective Guard pH range for an application is best when kept within
the 1 to 10 pH range. Antimony should not be used in
This selection provides the same glass bulb and pH
food and beverage, potable water, acid copper
performance as selection “1” above, but without the
solutions, strong oxidizers/ reducers such as
protective pvdf guard. This selection should be made
chromates, chlorine, hypochlorites, or sulfides.
when the application requires full pH range or high
temperature operation and the process stream
contains a high level of solid material that might
otherwise get caught on the protective guard. The
user must exercise greater caution while handling this
electrode type during installation and maintenance.
See Figure 7.
Figure 7. PH10-2 Electrode, Domed Bulb
without Protective Guard
PSS 6-1C3 A
Page 9
ORP10 ELECTRODE TYPE SELECTIONS Preamplifier Selection “P”
This selection provides an integral preamplifier
ORPI0-1 Electrode – Platinum Electrode
located in the upper body of the DolpHin sensor. The
Platinum is the default selection for most ORP
preamp is highly recommended when any one of the
applications. Large surface area, high purity
glass pH electrodes is selected. The preamp
platinum provides full mV ORP range, and high
provides unity gain and conversion to low
temperature up to 121°C (250°F). See Figure 9.
impedance of the high impedance mV signal of the
glass pH electrode. The preamp provides signal
integrity in electrically noisy environments, in
installations where the sensor cable may be moving,
and through sensor cable connections to an
extension cable. A preamp is required when the
distance from the sensor to the transmitter exceeds
15.2 m (50 ft).
The preamp should not be selected when the upper
half of the sensor body is submerged in process
solutions above 85°C (185°F). The preamp,
however, may be selected (and is recommended) in
all applications where the sensor is mounted such
that only the sensing end or lower half of the sensor
Figure 9. ORP10 Platinum Electrode is exposed to process temperature; for example, in
the universal bushing accessory.
ORPI0-2 Electrode – Gold Electrode
The gold ORP electrode is similar in size, shape, NOTE
and purity as the platinum ORP electrode. Gold Optional selections “-1H” to “-5H” for high
provides an alternative electrode choice for those temperature cable are not available when the
rare applications where platinum is not well suited; preamp is selected.
for example, cyanide reduction systems.
TEMPERATURE COMPENSATION SELECTIONS
PREAMPLIFIER SELECTIONS DolpHin pH and ORP sensors include a precision
temperature measuring element. Foxboro analyzers
Preamplifier Selection “N”
and transmitters use this temperature measurement
This option allows for no integral preamplifier in the
to provide automatic temperature compensation of
sensor. Select “N” in applications where the entire
pH measurements. ORP measurements do not
sensor body is exposed to process temperatures
require compensation. The temperature measure-
above 85°C (185°F), up to 121°C (250°F), such as
ment element is included in ORP10 models for
submersion tank installation or hot tap/ball valve
process temperature indication, and in PH10 models
installations. The temperature limit of the preamp is
for both process temperature indication and ATC.
85°C (185°F) and it resides inside the upper portion
of the sensor. DolpHin sensor design provides superior
NOTE temperature compensation. The precision RTD is
It is recommended that the optional high located in the tip of the sensor in close thermal
temperature cable be specified in high contact with the pH electrode, the reference
temperature submersion applications. electrode, and the process liquid. Highly effective
temperature compensation is achieved because the
Also select “N” when planning to use the DolpHin actual temperature of the electrodes is measured.
sensor with a non Foxboro made transmitter or
analyzer. Power and wiring of the preamplifier is one Temp. Comp. Selection “1” – 2-Wire 100 Ω
area where sensor and transmitters may be Platinum RTD
incompatible when mixing equipment from different This selection is the most widely applicable. Many
manufacturers. non Foxboro analyzers and all Foxboro
analyzers/transmitters accept this RTD. Foxboro
analyzers in the 873 family require this selection or
the “3” selection below. The platinum 100 Ω, 2-wire
RTD is suitable for most routine process
applications.
PSS 6-1C3 A
Page 10
MODEL CODE SELECTION GUIDE (Cont.)
Temp. Comp. Selection “2” – 3-Wire 1000 Ω NOTE
Platinum RTD This selection is not available when a
This selection should be made when high pH preamplifier and a Variopin quick connector
accuracy is required. A 3-wire RTD compensates for are both selected in the same sensor model
the error due to cable length and junction box code.
connections, thus providing more accurate
temperature compensation. SENSOR TERMINATION SELECTIONS
NOTE Sensor Termination Selection “A” – 3.05 m (10 ft)
This selection is not available when a Integral Cable with Pin Lugs
preamplifier and a Variopin quick connector The sensor cable is an integral part of the sensor.
are both selected in the same sensor model This selection is best suited for installations such as
code. submersion, hot tap ball valve insertion, or in-line
with universal bushing mount.
Temp. Comp. Selection “3” – 2-Wire 100 Ω
Platinum RTD, Enhanced Response Speed Sensor Termination Selection “B” – 3.05 m (10 ft)
Make this selection in critical pH applications or Integral Cable with Variopin Quick Connector
when process temperature changes rapidly and This selection is best suited for a submersion type
when using an 873PH Analyzer. Also make this installation where integral cable is desired and a
selection when fast temperature response is long patch cord is also required. The Variopin quick
required along with Variopin quick connector and connector provides IP67 rating with easy
preamplifier are all required. disconnect/reconnect capability. Requires mating
patch cable of appropriate length for application. The
This RTD housing protrudes slightly (0.17 in) from mating patch cable does not need replacement
the sensing tip of DolpHin, providing greater thermal when the sensor is replaced. Also, the transmitter or
contact with the process. This selection is similar to analyzer remains closed and does not need rewiring
selection “1”, but with ultra fast temperature during sensor replacement. This selection is not
response. Refer to Figures 4 and 10. suitable for use in hot tap or ball valve type insertion
RTD assembly installations.
HOUSING
Sensor Termination Selection “Q” – Variopin
Quick Connector Integral to Sensor
Similar to selection “B” but without cable integral to
the sensor. This selection provides easy sensor
replacement without running new cable and rewiring
transmitter/analyzer. Prevents cable wind-up
problem. Requires mating patch cable of appropriate
Figure 10. Platinum RTD Housing –
length. Variopin quick connector cuts maintenance
Enhanced Response Speed
costs, reduces time required for sensor replacement.
Temp. Comp. Selection “4” – 3-Wire 1000 Ω This selection is suitable for all sensor mounting
Platinum RTD, Enhanced Response Speed styles, including DolpHin Series ball valve/insertion
This selection provides the optimum accuracy and assemblies. See Figure 11.
speed of response for temperature indication and pH
temperature compensation. Make this selection for
the most critical pH application when using 870ITPH
Transmitter or 875PH Analyzer. This selection is
similar to selection “2” for RTD accuracy and similar
to selection “3” for temperature speed of response.
Temperature Compensation Selection “4” may also Figure 11. Variopin Quick Connector
be used for applications requiring the flat glass Integral to Sensor
electrode, but consideration should be made for the
slight protrusion of the RTD housing on the flat
surface.PSS 6-1C3 A
Page 11
OPTIONAL SELECTIONS Optional Selections “-1H”, “-2H”, “-3H”, “-4H”,
“-5H” – High Temperature Sensor Cable
Optional Selections “-E” and “-C”
High temperature cable is rated to 125°C (257°F).
Viton O-rings are standard. EPDM (“-E”) or Chemraz
This cable is used in applications where the entire
(“-C”) O-ring materials are available as options.
sensor body and some portion of the sensor cable
O-rings are process wetted and should be selected
are exposed to process temperatures above the
based on chemical compatibility with process
standard cable specification of 85°C (185°F).
materials and temperatures.
Installations such as ball valve insertion assembly, or
Optional Selections “-2”, “-3”, “-4”, “-5” –
submersion mounting, expose the cable to process
Extended Length Integral Cable
temperature. In these cases, optional high
Extended length integral cable is available in 3.05 m
temperature cables should be considered. It is
(10 ft) increments up to 15.2 m (50 ft) maximum. For
appropriate for cost purposes to use high
applications that require the transmitter and sensor
temperature cable from the sensor running out of the
to be separated by greater than 15.2 m (50 ft), use of
hot zone to a cooler area where a junction box or
the standard length cable with junction box is
Variopin connection is made to a lower cost,
recommended, and an extension cable up to a
standard temperature extension cable. This
maximum of 152 m (500 ft) between sensor and
approach is especially cost effective if the
transmitter. Also, for lengths greater than 15.2 m
application demands frequent sensor replacement.
(50 ft), the preamp selection “P” must be made. See
Figures 12 and 13.
OPERATING, STORAGE, AND TRANSPORTATION CONDITIONS
Reference Operating Normal Operating Condition Storage and Transportation
Influence Conditions Limits Limits
Process Temp. 25 ±3°C (77 ±5°F) See Table 1 -5 and +65°C (-23 and +149°F)
Process Press. 0 kPa gauge (0 psig) 0 and 700 kPa (0 and 100 psig) Not Applicable
Mounting Vertical; Vertical up to ±90°; Not Applicable
Position with Electrode End Down with Electrode End Downward
Table 1. Process Temperature Ratings
With Internal Preamp
Measuring Ball Valve or Submersion In-Line
Electrode Type Without Internal Preamp. Installation Installation (a)
Domed Glass - pH 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)
Flat Glass - pH 0 to 85°C (32 to 185°F) 0 to 85°C (32 to 185°F) 0 to 85°C (32 to 185°F)
Antimony - pH 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)
Platinum - ORP 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)
Gold - ORP 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)
(a) For in-line installations of a DolpHin sensor with internal preamp, the upper body must be in ambient temperatures of 54°C (130°F)
or less.
PROCESS PRESSURE AND TEMPERATURE SPECIFICATIONS
NOTE
The process temperature ratings of the sensor assembly are given in Table 1. In the table, in-line
installation means that only the sensing end, not the sensor body, is immersed in the solution.
Submersion installation is when the entire sensor assembly (sensing end and body) is completely
submersed. In addition to the normal operating pressure and temperature limits of the sensor as shown
above, the DolpHin mounting accessories also have pressure and temperature limits. The specifications
for the mounting accessories, shown in the Accessories section further in this document, may be
greater or less than the sensor specifications. Always use the lesser of the two specification limits when
designing the installation of a DolpHin sensor with accessories.PSS 6-1C3 A
Page 12
PERFORMANCE SPECIFICATIONS
(Under Reference Operating Conditions unless otherwise specified)
pH Measurement Accuracy - Temperature Measurement
Performance specifications are for the domed, high 100 Ω AND 1000 Ω PLATINUM RTD
temperature glass electrode (pH electrode type ± [0.30°C + (0.005)T]
PH10-1..., and PH10-2...). Other electrode choices where T = measured temperature in °C.
include flat ruggedized glass pH, antimony pH,
platinum ORP, and gold ORP. Selection of these Temperature Measurements Speed of Response
electrodes is based on application considerations. (see Note below)
Refer to Model Code Selection Guide section. 100 Ω PLATINUM RTDPSS 6-1C3 A
Page 13
FUNCTIONAL SPECIFICATIONS
Measuring Electrode Automatic Temperature Compensation (ATC)
pH MEASUREMENT Integral temperature element provides temperature
Domed glass bulb, flat glass, or antimony measurement for pH compensation over the full
ORP MEASUREMENT rated temperature range of the pH sensor (0 to
Platinum or Gold 121°C, 32 to 250°F).
Reference Electrode Solution Temperature Measurement
The reference electrode is Ag/AgCl (silver/silver Solution temperature measurement is based on the
chloride) and is isolated from the internal salt-bridge RTD. The Resistance-Temperature response is per
by a Nafion ion barrier. DIN 43760, or IEC 751-1983, and is as follows:
Measurement Range Solution Corresponding Resistance in
pH MEASUREMENT RANGE Temperature ohms using the:
Domed Glass 100 ohm 1000 ohm Balco
0 to 14 pH °C °F RTD RTD RTD
Flat Glass
2 to 12 pH 0 32 100.00 1000.0 2663
Antimony 10 50 103.90 1039.0 2798
1 to 11 pH 20 68 107.79 1077.9 2933
ORP MEASUREMENT RANGE
25 77 109.73 1097.3 3000
Platinum and Gold
+2000 to -2000 mV 30 86 111.67 1116.7 3067
40 104 115.54 1155.4 3202
Electromagnetic Compatibility
50 122 119.40 1194.0 3337
When properly installed per the applicable
installation instructions with Foxboro Models 60 140 123.24 1232.4 3472
870ITPH Transmitters, 875PH Analyzers, applicable 70 158 127.07 1270.7 3607
Models 873, or other compliant transmitters or 80 176 130.89 1308.9 3742
analyzers, the DolpHin pH and ORP sensors comply
90 194 134.70 1347.0 3877
with the electromagnetic compatibility requirements
of European EMC Directive 89/336/EEC by 100 212 138.50 1385.0 4013
conforming to the following CENELEC and IEC 110 230 142.28 1422.8 4148
Standards: EN-61326, and IEC 61000-4-2 through 120 248 146.06 1460.6 4283
61000-4-6.PSS 6-1C3 A
Page 14
PHYSICAL SPECIFICATIONS
Process Wetted Parts Materials Sensor Connections and Cable Lengths
BODY The sensor is offered with electrical terminations, as
Non-conductive, Kynar, black, FDA compliant, follows:
mineral filled • Integral Sensor Cable 10 ft (3.05 m) long;
CHEMICAL COMPATIBILITY terminated with crimped-on straight pin lugs.
Kynar, known by polyvinylidene fluoride, or PVDF, Optional cable lengths of 20, 30, 40, or 50 ft
is chemically resistant to virtually all acids, bases, (6.1, 9.1, 12.2, or 15.2 m) are offered.
and salts within the 0 to 14 pH range. It is also • Integral Sensor Cable 10 ft (3.05 m) long;
resistant to halogens, halogenated solvents, terminated in a Variopin quick connector.
alcohols, and oxidants. Optional cable lengths of 20, 30, 40, or 50 ft
MEASURING ELECTRODE (6.1, 9.1, 12.2, or 15.2 m) are offered.
Glass or antimony for pH; • Variopin quick connector integral to sensor
and platinum or gold for ORP housing end.
REFERENCE ELECTRODE Standard cable is PVC jacketed. High temperature
Ceramic junction cable is cross-linked, irradiated, polyethylene (xple).
SOLUTION GROUND Variopin quick connector is IP 67 rated, with nickel
Conductive Kynar (nonmetallic) plating and Viton O-ring.
SEALS
Viton is standard; EPDM (also known as EPR) and When a preamplifier internal to the sensor is used,
Chemraz are optionally available. the transmitter or analyzer can be up to 500 ft
(152 m) away from the sensor. If no sensor internal
Sensor Mounting preamplifier is used, the distance is limited to 50 ft
The upper housing of the sensor has 3/4 NPT (15.2 m). See Figure 12 for typical cable and cable
external threads on both ends for use with widely extension configurations.
accepted mounting accessories. The housing body LEGEND
also has wrench flats to facilitate sensor installation S-N = SENSOR, NO PREAMP
and removal. The sensor, with the appropriate S-P = SENSOR, WITH PREAMP
accessories, is suitable for both in situ (submersible) JB = JUNCTION BOX;
T/A = TRANSMITTER OR ANALYZER
and in-line installations. As indicated previously, the
sensor can be mounted up to 90° from the vertical 50 ft
S-N T/A
position, with the electrode end downward. Figure 5
shows typical sensor mounting configurations, and 10 to 40 ft to 50 ft total
S-N S-N
JB T/A
the “ACCESSORIES” section describes and
specifies each accessory and its application. to 50 ft JB to 500 ft total
S-N
S-P T/A
Dimensions Figure 12. Typical Integral Cable with Pin Lugs
• See “Dimensions - Nominal” section for Sensor and Cable Extension Configurations
dimensions.
• See DP 611-172 for dimensions of the Sensor to 50 ft total
10 to 40 ft
Ball Valve and Insertion Tube Assemblies. S-N-B S-N
VP T/A
• See DP 611-173 for dimensions of Sensor
to 50 ft total
Accessories. S-N-Q VP T/A
• See DP 014-256 and DP 611-160 for dimensions to 500 ft total
10 to 50 ft
of Q0101CF and BS807BZ junction boxes, S-P-B S-N
VP T/A
respectively. to 500 ft total
S-P-Q VP T/A
LEGEND
VP = VARIOPIN QUICK CONNECTOR
S-N-B SENSOR, NO PREAMP, CABLE WITH VARIOPIN
S-N-Q SENSOR, NO PREAMP, INTEGRAL VARIOPIN
S-P-B SENSOR, WITH PREAMP, CABLE WITH VARIOPIN
S-P-Q SENSOR, WITH PREAMP, INTEGRAL VARIOPIN
Figure 13. Typical Variopin Quick Connector and
Patch Cord ConfigurationsPSS 6-1C3 A
Page 15
ELECTRICAL SAFETY SPECIFICATIONS (1)
Electrical
Testing Laboratory, Types of Protection, Safety Design
and Area Classification Application Conditions Code (2)
ATEX Intrinsically safe; II 1 G, EEx ia II C, Connect to certified 870IT pH Transmitter. CS-E/EAA
Zone 0; hazardous locations. Temperature Class T4 to T6.
CSA intrinsically safe for Class I, Division 1, Connect to certified 870IT pH Transmitter per CS-E/CAA
Groups A, B, C, and D; Class II, Division 1, MI 611-206. Temperature Class T6.
Groups E, F, and G; and Class III, Division 1.
CSA nonincendive for Class I, Division 2, Connect to 870IT pH Transmitter, or 873PH, CS-E/CNN
Groups A, B, C, and D. 873APH, or 875 PH Analyzer per MI 611-206.
Temperature Class T6.
FM intrinsically safe for Class I, Division 1, Connect to approved 870IT pH Transmitter per CS-E/FAA
Groups A, B, C, and D; Class II, Division 1, MI 611-206. Temperature Class T4 at 85°C
Groups E, F, and G; and Class III, Division 1. maximum ambient.
FM nonincendive for Class I, Division 2, Connect to approved 870IT pH Transmitter, or CS-E/FNN
Groups A, B, C, and D; Class II, Division 2, 873PH, 873APH, or 875PH Analyzers per
Groups F and G; and Class III, Division 2. MI 611-206. Temperature Class T4 at 85°C
maximum ambient.
SAA Ex, ia, IIC. Intrinsically safe, Gas Connect to certified 870IT pH Transmitter. CS-E/AAA
Group IIC, Zone 0. Temperature Class T4 and T6.
NOTES
1. These sensors have been designed to meet the Electrical Safety descriptions listed above. For detailed
information, or status of testing laboratory approval, or certifications, contact Foxboro.
2. Specify Electrical Safety Design Code when ordering sensor for applications requiring certification.PSS 6-1C3 A
Page 16
ACCESSORIES
Universal Bushing Assembly
The universal bushing assembly is comprised of a
bushing, a lockscrew, a Viton O-ring, a back-up ring,
and a split ring, and provides the following features:
• Allows sensor insertion and removal without
causing cable “wind-up”.
Photo File 0209024 F
• Allows adjustment of submersion depth at either
2.1 or 3.1 in (53 or 79 mm) with the flat electrode,
or either 2.5 or 3.5 in (63 or 89 mm) with the
domed glass electrode.
• Provides a 1 NPT process connection, rather
than the 3/4 NPT connection on the sensor body. Figure 15.
Universal Bushing Shown with Flat Glass Sensor
The bushing assembly is available in 316 ss or Installed in Position for 2.1 inch Insertion Depth
PVDF materials. See Figures 14 to 17 and table
below.
Table of Universal Bushing Assemblies
Material Assembly Part No. Thread
316 ss BS810XC 1 NPT Photo File 0209024 G
316 ss BS810XD ISO R-1 1/2
PVDF BS810XB 1 NPT
PVDF BS810XE ISO R-2
Pressure-Temperature Rating
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
Figure 16.
PVDF 0.7 MPa at 90°C (100 psi at 194°F)
Universal Bushing Shown with Flat Glass Sensor
0.35 MPa at 121°C (50 psi at 250°F)
Installed in Position for 3.1 inch Insertion Depth
Photo File 0209024 D
BUSHING
LOCKSCREW SENSOR
ASSEMBLY
(REFERENCE)
O-RING SEAL,
Figure 14. SPLIT RING,
Universal Bushing and Sensor Showing Split Ring, BACKUP RING,
O-ring, and Back-up Ring Installed on Sensor BUSHING AND STOP USED
IN ONE OF TWO
in Position for 2.1 inch Insertion Depth
LOCATIONS ONLY.
1 NPT 3/4 NPT
PROCESS (NOT USED)
CONNECTION
FLAT
ELECTRODE
SHOWN
Figure 17. Universal Bushing AssemblyPSS 6-1C3 A
Page 17
ACCESSORIES (Cont.)
Bushings
Bushings may be used to mount sensors in a system
using process piping larger than DN 20 or 3/4 inch. HC, HK HA HF, HG
PVDF and 316 ss bushings are threaded on both
ends, while CPVC(1) bushings are threaded on one
end and provide a slip fit on the opposite end. See
Figure 18. The bushing identification in Figure 18
corresponds to the last two characters in the bushing CE, CF, HJ HM
part numbers listed in the table below. GZ, HH
Table of Bushings
Part Number using:
Bushing 316 ss PVDF CPVC
Size (a) (NPT) (NPT) (Slip) HN, HP
KN
3/4 x 1 BS810HA BS810HC BS810KL KL, KM
3/4 x 1 1/4 BS810HF – BS810KM
3/4 x 1 1/2 BS810HG BS810GZ BS810KN
1x1 BS810HJ BS810HK BS810HM
1 x 1 1/4 X0177CF – BS810HN
1 x 1 1/2 X0177CE BS810HH BS810HP
Pressure-Temperature Rating Figure 18. Typical Bushing Configurations
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
PVDF 0.7 MPa at 90°C (100 psi at 194°F)
0.35 MPa at 121°C (50 psi at 250°F)
CPVC 0.7 MPa at 70°C (100 psi at 158°F)
0.4 MPa at 85°C (60 psi at 185°F)
(a) Bushings with 3/4 NPT ID are used directly with DolpHin
sensor. Bushings with 1 NPT ID are used with 1 inch
Universal Bushings. Also, 1 x 1 bushings are used to
lessen insertion depth.
(1) CPVC = Chlorinated Polyvinyl Chloride.PSS 6-1C3 A
Page 18
ACCESSORIES (Cont.)
Tees
A tee is available for insertion in a pipeline with user-
TOP AND ENDS ARE EITHER ALL NPT
supplied bushings, as necessary. The tee is offered OR ALL SLIP FIT DEPENDING ON
in three sizes and available in 316 ss, PVDF, or MATERIAL USED.
CPVC materials. PVDF and 316 ss tees are
threaded on all three ends, while CPVC tees provide
a slip fit on all three ends. See table below and
Figure 19. Also see the Tee Kits section that follows
for tee/bushing assembly configurations.
Table of Tees
Part Number using:
316 ss PVDF CPVC
Tee Size (NPT) (NPT) (Slip)
1 X0178JB X0178HV X0178HY Figure 19. Typical Tee Configuration
1 1/4 X0178HW – X0178HZ
1 1/2 X0173JY X0178HX X0178JA
Pressure-Temperature Rating
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
PVDF 0.7 MPa at 90°C (100 psi at 194°F)
0.35 MPa at 121°C (50 psi at 250°F)
CPVC 0.7 MPa at 70°C (100 psi at 158°F)
0.4 MPa at 85°C (60 psi at 185°F)PSS 6-1C3 A
Page 19
ACCESSORIES (Cont.)
Tee Kits
A tee kit consists of a tee and a bushing assembled
together. The top of the assembly is for the sensor NPT BUSHING
connections, while the two ends are for the pipeline
connections. The assembled kits are available in NPT TEE
316 ss, PVDF, or CPVC. The 316 ss and PVDF kits
have all NPT connections, while the CPVC kits have
an NPT connection on top for the sensor, and slip fit
connections on the pipeline ends. See table below
and Figure 20.
Table of Tee Kits SLIP BUSHING
Assembled Kit Part No. Using: SLIP TEE
Assembled 316 ss PVDF CPVC
Size (a) (NPT) (NPT) (Slip)
3/4 x 1 x 1 BS810HS BS810HV BS810HU
3/4 x 1 1/4 x 1 1/4 BS810HW – BS810HZ
3/4 x 1 1/2 x 1 1/2 BS810JA BS810JB BS810JD Figure 20. Typical Tee Kit Configurations
1x1x1 BS810JE BS810JF BS810JH
1 x 1 1/4 x 1 1/4 BS810JJ – BS810JM
1 x 1 1/2 x 1 1/2 BS810JN BS810JP BS810JR
Pressure-Temperature Rating
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
PVDF 0.7 MPa at 90°C (100 psi at 194°F)
0.35 MPa at 121°C (50 psi at 250°F)
CPVC 0.7 MPa at 70°C (100 psi at 158°F)
0.4 MPa at 85°C (60 psi at 185°F)
(a) Tee kits with 3/4 NPT bushing are for direct connection of
DolpHin series.
Tee kits with 1 NPT bushing are for use with 1 NPT
Universal Bushings.PSS 6-1C3 A
Page 20
ACCESSORIES (Cont.)
Universal Tri-Clamp Connection Assembly
A Tri-Clamp connection assembly is offered for users
who require a quick-disconnect mounting
arrangement. The mating Tri-Clamp flange and
clamp are provided by the user. The Tri-Clamp
connection assembly replaces the universal bushing
assembly described previously, and is similarly BUSHING
LOCKSCREW SENSOR
locked in place with a bushing lockscrew. The ASSEMBLY
connection assembly is comprised of the Tri-Clamp (REFERENCE)
connection assembly, lockscrew, Viton O-ring, back-
up ring, and split ring. Tri-clamp connections are
available in standard 1.5 and 2 inch sizes, and are
made from 316 ss with a 32 microinch finish, or INTERNAL
better. See Figure 21 and table below. O-RING SEAL,
BACKUP RING,
SPLIT RING,
Table of Tri-Clamp Connection Assemblies AND STOP USED
Tri-Clamp Connection Assembly IN ONE OF TWO
LOCATIONS ONLY.
Material Part No. Size TRI-CLAMP 3/4 NPT
316 ss BS810ZU 1.5 in CONNECTION (NOT USED)
ASSEMBLY
316 ss BS810ZT 2 in FLAT
Pressure-Temperature Rating ELECTRODE
SHOWN
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
Universal Flanged Connection Assembly with Figure 21. Universal Tri-Clamp Connection Assembly
Integral (Welded-in-Place) Universal Bushing
Assembly
A flanged end connection assembly is offered for
users who require a flange mounted sensor with an
integral universal bushing assembly. The mating
flange and flange gasket and bolts are provided by
BUSHING
the user. The universal bushing assembly described LOCKSCREW SENSOR
previously is welded to the flange to form a flanged ASSEMBLY
end connection assembly, as shown in Figure 22. (REFERENCE)
Flanged end connection assemblies are comprised INTERNAL
of a flange welded to a universal bushing, lockscrew, O-RING SEAL,
Viton O-ring, back-up ring, and split ring. Flange BACKUP RING,
assemblies are made from 316 ss and available in SPLIT RING,
AND STOP USED
ANSI Class 150, 2-, 2-1/2-, and 4-inch sizes; and PN IN ONE OF TWO
10, DN 50 and DN 100 sizes. See Figure 22 and LOCATIONS ONLY.
table below.
Table of Flanged End Connection Assemblies
FLANGE ASSEMBLY
Flange End Connection Assembly (UNIVERSAL BUSHING 3/4 NPT
Rating Size Holes Part No. WELDED IN PLACE) (NOT USED)
ANSI 2 in 4 BS810ZN
FLAT
Class 150 2-1/2 in 4 BS810ZP ELECTRODE
(316 ss) 4 in 8 BS810ZQ SHOWN
DIN PN 10 DN 50 4 BS810ZR
(316 ss) DN 100 8 BS810ZS Figure 22. Flanged End Connection Assembly with
Welded-in-Place Universal Bushing Assembly
Pressure-Temperature Rating
316 ss 1.4 MPa at 121°C (200 psi at 250°F)PSS 6-1C3 A
Page 21
ACCESSORIES (Cont.)
Universal Flanged Connection with Sensor
Assembly Threaded Directly to Flange
A flanged end connection with 3/4 NPT is offered for
threading sensor directly to flange. Mating flanges,
gaskets, and bolts are provided by the user. The ANSI OR SENSOR
flange is made from 316 ss and available in ANSI DIN FLANGE. ASSEMBLY
Class 150, 2-, 2 1/2-, and 4-in sizes; and PN 10, DN FOUR BOLT HOLES (REFERENCE)
50, and DN 100 sizes. See Figure 23 and table WITH 2 in, 2 1/2 in,
AND DN 50 SIZES.
below. EIGHT BOLT HOLES
WITH 4 in AND
Table of ANSI and DIN Flanges DN 100 SIZES.
Flange End Connection Assembly 3/4 NPT
CONNECTION
Rating Size Holes Part No.
ANSI 2 in 4 BS808MP
Class 150 2-1/2 in 4 BS809LZ
4 in 8 BS808MA
DIN PN 10 DN 50 4 BS808MB Figure 23. Flanged End Connection with Sensor
DN 100 8 BS809LW Assembly Threaded Directly to Flange
Pressure-Temperature Rating
316 ss 1.4 MPa at 121°C (200 psi at 250°F)
Flow Chambers
Flow chambers are a convenient way of mounting
sensors in a system where a sample is provided by a
small diameter sample line. The inlet and outlet
ports of the chamber have 1/2 NPT threads, and
connect to the system with user supplied fittings.
SENSOR
The chamber is offered in 316 ss, PVDF, or CPVC. ASSEMBLY
See Figure 24 and table below.
3/4 NPT
316 ss
Table of Flow Chambers AND CPVC
PVDF
Sensor
Material Part Number Connection 1/2 NPT
316 ss BS810SR 3/4 NPT
PVDF BS810SS 3/4 NPT
CPVC BS810SU 3/4 NPT
Pressure-Temperature Rating SENSOR CONNECTION
316 ss 1.4 MPa at 121°C (200 psi at 250°F) PROCESS OUTLET
PVDF 0.7 MPa at 90°C (100 psi at 194°F) PROCESS INLET
0.35 MPa at 121°C (50 psi at 250°F)
CPVC 0.7 MPa at 70°C (100 psi at 158°F)
0.4 MPa at 85°C (60 psi at 185°F)
Figure 24. Flow ChamberPSS 6-1C3 A
Page 22
ACCESSORIES (Cont.)
Insertion Assemblies The DolpHin sensor is attached to the shaft with
Insertion assemblies are used to install DolpHin redundant seals; 3/4 NPT sensor thread connects to
sensors in a hot tap/retractable type mountings. the insertion shaft, creating one seal, while an O-
They permit the sensor to be inserted and removed ring on the upper body of the sensor seals on the ID
from the process, under rated pressure and of the shaft/sensor coupling. This sealing
temperature, without draining the tank, shutting mechanism, when properly installed, prevents
down a line, or using a bypass system. The insertion process liquid from migrating out through the shaft
assemblies are offered in three ways: and possibly out the cable conduit to the transmitter.
• Insertion Tube Assembly, BS810JU, for use with These ball valve insertion assemblies are one of the
a user-supplied ball valve; requires 1 1/4 full port most effective, safe, versatile means for installing the
or larger ball valve DolpHin sensors. Refer to Figure 25 and table
below.
• Ball Valve Insertion Assembly, BS810LV,
complete with 1 1/4 full port ball valve, retraction NOTE
chamber with purge ports, and 0 to 8 inch Insertion assemblies are not compatible with
adjustable insertion depth sensor termination Code B. However,
Termination Codes A and Q are compatible.
• Ball Valve Insertion Assembly, BS810MJ, similar
to BS810JU but with 0 to 16 inch adjustable Insertion Assemblies
insertion depth.
Insertion
All three types provide continuously adjustable Assembly Type Tube Ball Valve
insertion depth from 0 to full length of tube, using a Adjustable 0 to 14 in 0 to 8 in 0 to 16 in
compression seal to hold the insertion shaft at the Insertion Depth (a)
desired depth. This allows the installer to locate the
Part Number BS810JU BS810LV BS810MJ
sensing end of the pH/ORP probe at the optimum
(a) Refer to Dimensional Print DP 611-172.
location for the application, and to adjust the depth in
response to unexpected plumbing/hardware
installation revisions. Pressure-Temperature Rating
All three insertion assemblies include anti-blowout 316 ss 1.4 MPa at 121°C (200 psi at 250°F)
protection; sensor and shaft will not fit through the
compression nut.
INSERTION RETRACTION
The complete assemblies (BS810LV and BS810MJ) SHAFT CHAMBER
also offer the safety feature of purge ports on the
retraction chamber. This allows the operator to
purge away hot, pressurized, or hazardous SENSOR VITON PUSH-
chemicals before opening the assembly and O-RINGS PULL
PLATE
servicing the sensor.
Process Wetted Materials are 316 ss, teflon ball
seat, and Viton O-rings. Process connection is
1 1/4 NPT. SENSOR RETAINING
PURGE PORT 1/2 NPT RINGS
These assemblies include ease-of-use features,
such as the push/pull plate for easy movement of the
insertion shaft. Accessing the sensor is easy, and
assembly parts stay together even when removing 1 1/4 NPT
the sensor, so parts do not get lost. BALL VALVE LIQUID TIGHT
RETRACTION CHAMBER FITTING
Figure 25. Ball Valve and Insertion Tube AssembliesPSS 6-1C3 A
Page 23
ACCESSORIES (Cont.)
Junction Boxes
Two surface-mounted junction boxes are offered.
JUNCTION BOX WHEN JUNCTION BOX WHEN
One, with terminals for seven conductors is for a NO PREAMP IS USED THERE IS A PREAMP
sensor without a preamplifier. The second junction
box, with terminals for nine conductors, is for a 3/4 NPT
sensor with an internal preamplifier. There is a ON THIS
generous amount of space within each junction box SIDE
ELECT. SHIELD
MEAS. ELECTRODE
to accommodate the terminal blocks, and the sensor
and transmitter/ analyzer cable assembly
terminations. These junction boxes are weatherproof
and dusttight as defined by IEC IP65 and provide the SOL. REF.
GND. ELEC.
TEMP.
COMP.
watertight protection of NEMA Type 4. See
Figure 26 and table below.
Junction Box
Assembly
Part No. Application Figure 26. Junction Boxes - Surface Mounted
Q0101CF When sensor does not include
preamp, Model Code Selection “N”
7-CONDUCTOR CABLE
BS807BZ When sensor includes integral FOR SENSORS WITHOUT PREAMP
preamp, Model Code Selection “P”
NUMBERED
Patch Cords and Extension Cable Assemblies LABELS
Extension cables are offered for adding length to the
connection between the DolpHin sensor and the
transmitter/analyzer. Choices include standard
cable, high temperature cable, terminated cable
ordered to length, and raw cable unterminated. STRAIGHT
Variopin quick connector or Foxboro specified PIN LUG COAXIAL
CABLE
junction box is recommended for connection of
extension cable to sensor or sensor cable. This is
especially important for sensors without integral
9-CONDUCTOR CABLE
preamplifiers. FOR SENSORS WITH PREAMP
Cable termination for connection to transmitter/ NUMBERED
analyzer and junction box are crimped on straight LABELS
pin lugs. Because of the straight pins, this style
cable termination is much easier to pull through
conduit than spade or other style lug terminations.
Pin lug leads are numbered for connection to
corresponding terminal strip numbers in Foxboro
transmitters and analyzers. Refer to Figure 27.
STRAIGHT
PIN LUG
Figure 27. Extension Cable Assembly with
Straight Pin Lugs on Both EndsPSS 6-1C3 A
Page 24
ACCESSORIES (Cont.)
Patch Cords and Extension Cable Assemblies
(Cont.)
CABLE LENGTH
The Variopin quick connector is also available as a
cable termination on one end of the extension cable SEVEN CONDUCTORS SHOWN
and pin lugs on the other (also referred to as a
“patch cord”). The connector is rated IP 67, with
nickel plating and Viton O-rings. This extension
cable is selected for use with sensors equipped with
VARIOPIN QUICK NUMBERED
the mating Variopin quick connector, Model Code LABELS
CONNECTOR STRAIGHT
selection “B” or “Q”; refer to the Model Code PIN LUG
Selection Guide section for advice. Refer to
Figure 28. Figure 28. Extension Cable Assembly with
Variopin Quick Connector and Straight Pin Lugs For
To select the proper cable, first determine if the Sensors with or without Preamplifier
sensor will have an integral preamplifier. The sensor
model code contains an “N” for no preamp or a “P”
for preamp. Refer to the model code selection guide EXTENSION CABLE
for advice regarding the preamplifier. Then select the PRIOR TO ADDING
cable termination, length and temperature rating TERMINALS COAXIAL CABLE
required for the installation. POLYETHYLENE
JACKET
Extension cables for sensors without preamp are
available as standard cable with PVC jacket, 85°C
rating, 7 conductors (coax plus 5). They are also
TERMINATIONS
available in a high temperature version, with SUPPLIED
irradiated cross linked polyethylene jacket, rated to BY USER
125°C, also 7 conductors (coax plus 5). Sensors
without preamps are restricted to 50 feet or less Figure 29. Raw, Unterminated Cable
separation between sensor and transmitter/analyzer. 7-Conductor Extension Cable Shown
Therefore, extension cables in this group are
available in lengths up to 50 feet. Longer distances
require the use of a preamp.
Extension cables for sensors with preamps are
available as standard cable with PVC jacket, 85°C
rating, 9 conductors. Preamps and preamp cable are
not available for temperatures above 85°C.
Extension cable for both the pin lug termination and
Variopin types are available up to 500 feet maximum
and are ordered by the foot.
Raw, unterminated cable is also available in
continuous lengths up to 1000 feet. The installer
must cut the cable to length and terminate the leads.
Refer to Figure 29.PSS 6-1C3 A
Page 25
ACCESSORIES (Cont.)
Patch Cord, Extension Cable, and Raw Cable Part Numbers
Patch Cords - for use with Sensors without Preamplifier (Model Code “N”)
Length
Part No. Temperature Range Cable Terminations (Feet)
BS811GU Standard (to 85°C) Variopin to Pin Lugs 10
BS811GV Standard (to 85°C) Variopin to Pin Lugs 20
BS811GW Standard (to 85°C) Variopin to Pin Lugs 30
BS811GX Standard (to 85°C) Variopin to Pin Lugs 40
BS811GY Standard (to 85°C) Variopin to Pin Lugs 50
BS810QA High Temp (to 125°C) Variopin to Pin Lugs 10
BS810QB High Temp (to 125°C) Variopin to Pin Lugs 20
BS810QC High Temp (to 125°C) Variopin to Pin Lugs 30
BS810QD High Temp (to 125°C) Variopin to Pin Lugs 40
BS810QE High Temp (to 125°C) Variopin to Pin Lugs 50
Extension Cable - for use with Sensors without Preamplifier (Model Code “N”)
Part No. Temperature Range Cable Terminations Length (Feet)
BS811HE Standard (to 85°C) Pin Lugs to Pin Lugs 10
BS811HF Standard (to 85°C) Pin Lugs to Pin Lugs 20
BS811HG Standard (to 85°C) Pin Lugs to Pin Lugs 30
BS811HH Standard (to 85°C) Pin Lugs to Pin Lugs 40
BS811HJ Standard (to 85°C) Pin Lugs to Pin Lugs 50
BS810ZV High Temp (to 125°C) Pin Lugs to Pin Lugs 10
BS810ZW High Temp (to 125°C) Pin Lugs to Pin Lugs 20
BS810ZX High Temp (to 125°C) Pin Lugs to Pin Lugs 30
BS810ZY High Temp (to 125°C) Pin Lugs to Pin Lugs 40
BS810ZZ High Temp (to 125°C) Pin Lugs to Pin Lugs 50
Extension Cable - for use with Sensors with Integral Preamplifier (Model Code “P”)
Part No. Patch Length Temperature Range Cable Terminations
BS811JB Patch Cord, per foot to 500 ft max. Standard (to 85°C) Variopin to Pin Lugs
BS811HW Extension Cable, per foot to 500 ft max. Standard (to 85°C) Pin Lugs to Pin Lugs
Raw Cable, Unterminated, Maximum Continuous Length, 1000 ft
Part No. Description
P0170UU For Non-Preamp Sensor, Standard Temp (85°C), per foot
P0170UA For Non-Preamp Sensor, High Temp (to 125°C), per foot
P0170UV For Preamp Sensor, Standard Temp (85°C), per footPSS 6-1C3 A
Page 26
ACCESSORIES (Cont.)
Buffers for use with DolpHin Model PH10 Sensors
Buffers are available as a solution, or in a salt
packet. When provided in a salt packet, the buffer is
mixed with 0.47 litres (16 fluid ounces) of distilled
water to convert to a buffer solution. Refer to SALT PACKET
Figure 30 and the table below for Foxboro part CONVERTS TO
BUFFER SOLUTION
numbers for Buffer Solutions and Salt Packets.
Table of Buffer Solutions and Salt Packets
Type Buffer Description Part No.
Solution 4.00 pH, 0.47 L (16 fl oz) Q0104KC
7.00 pH, 0.47 L (16 fl oz) Q0104KB
BUFFER SOLUTION
10.00 pH, 0.47 L (16 fl oz) Q0104KA IN PLASTIC BOTTLE
Salt 4.00 pH (Note a) 1600100
Packet 7.00 pH (Note a) 1600101 Figure 30. Buffer Solutions and Salt Packets
10.00 pH (Note a) 1600102
(a)Mix buffer packet with 0.47 L (16 fl oz) of distilled water to
convert to solution form.PSS 6-1C3 A
Page 27
DIMENSIONS - NOMINAL
mm
in
SENSOR SENSOR SENSOR WITH INTEGRAL
WITH FLAT WITH DOMED QUICK-DISCONNECT
ELECTRODE ELECTRODE CONNECTOR
SENSOR WITH CABLE. VARIOPIN
TERMINATED WITH QUICK
43
CRIMPED-ON FERRULE CONNECTOR
1.7
TERMINALS OR "QUICK"
CONNECTOR
3/4 NPT CONDUIT
CONNECTOR
BUSHING
LOCKSCREW
MOVABLE
BUSHING GUIDE
(SPLIT RING) B
OPTIONAL
A UNIVERSAL
VARIABLE
DEPTH BUSHING
WITH 1 NPT
PROCESS
CONNECTOR
23 mm (0.90 in)
WRENCH FLATS
3/4 NPT
C
PROCESS D
CONNECTOR
ELECTRODE
PROTECTIVE GUARD
FLAT ELECTRODE DOMED ELECTRODE
Flat Electrodes - Protective Guard not Required
pH Sensors ORP Sensors Dimension “A” Dimension “C” (a)
53 mm (2.1 in) or
PH10-2, -3, -4 ORP10-1, -2 170 mm (6.7 in)
79 mm (3.1 in)
(a) Dimension “C” is adjustable to dimensions listed by adjusting the position of the bushing on the sensor.
Domed Electrodes with Protective Guard
pH Sensors ORP Sensors Dimension “B” Dimension “D” (a)
63 mm (2.5 in) or
PH10-1, PH30-1 Not Applicable 180 mm (7.1 in)
89 mm (3.5 in)
(a) Dimension “D” is adjustable to dimensions listed by adjusting the position of the bushing on the sensor.
NOTE
Numerous accessories are offered with the DolpHin sensors. For dimensional information, see
DP 611-172 for ball valve and tube assemblies, and DP 611-173 for all other accessories.You can also read
