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PROCESS REFRACTOMETER PR-23-W/M
SB:PR-23-W&M/5January 2015
PROCESS REFRACTOMETER
FOR CONCENTRATION
MEASUREMENT OF CHEMICALLY
AGGRESSIVE LIQUIDS
PROCESS REFRACTOMETER PR-23-W/M
TYPICAL APPLICATIONS
K-Patents Saunders Body PR-23-W and K-Patents Teflon Body
PR-23-M Refractometers provide accurate means for measuring
liquid concentrations in chemically aggressive solutions that
corrode, foul or otherwise destroy metal parts as well as in ultra-
pure fine chemical processes, where metal parts cannot be used.
CHLOR-ALKALI INDUSTRY
CORROSIVE CHEMICALS
ULTRA PURE FINE CHEMICALS
ELECTRONIC CHEMICALS
Acetic acid CH3COOH, Ammonium fluoride NH4F, Ammonium
hydroxide NH4OH, Ammonium sulphate (NH4)2SO4
Calsium hypochlorite Ca(ClO)2, Copper chloride CuCl2,
Citric acid C6H8O7, Chromic acid CrO3
Ferric chloride FeCl2, Fluosilic acid, Formic acid HCO2H
Hydrochloric acid HCl, Hydrofluoric acid HF, Hydrogen peroxide
H2O2, Buffered HF (BHF), Aqua Regia HNO3/HCl
Lactic acid C2H4(OH)COOH
Magnesium chloride MgCl2, Nickel chloride NiCl2, Nitric acid
HNO3
Phosphoric acid H3PO4, Potassium carbonate
K2CO3 · 11/2 H2O, Potassium hydroxide KOH, Potassium
thiocyanate KSCN, Potassium nitrate KNO3
Sodium bicarbonate NaHCO3, Sodium carbonate Na2CO3,
Sodium chloride NaCl, Sodium dichromate Na2Cr2O7 · 2H2O,
Sodium hydroxide NaOH, Sodium hypochlorite NaClO2,
Sulphuric acid H2SO4 and more.
PROCESS REFRACTOMETER PR-23-W/M
TEFLON BODY
REFRACTOMETER PR-23-M
INSTALLATION
SAUNDERS BODY
REFRACTOMETER PR-23-W 2" pipe size3" pipe size
The K-Patents Saunders Body Refractom-
eter PR-23-W is designed for use in chemi-
cally aggressive solutions and ultra-pure fine
chemical processes in large-scale production
and in large pipelines (diameter 50, 80 or
100mm/2", 3" or 4").
The K-Patents PR-23-W is delivered with a
Saunders (diaphragm) valve body and can
be mounted either in a vertical or horizontal
pipe. The Saunders body material is Graphite
cast iron, which provides a solid mechanical
base for the sensor installation.
The cast iron is lined with 3mm PFA (Perfluo
-
roalkoxy) fluoroplastic that gives the body a
high chemical resistance. The sensor wetted
parts materials are Teflon® PTFE (Polytetra-
fluoroethylene) and Sapphire (Al
2O3). The
material of the sensor cover is stainless steel
AISI 316 L.
The K-Patents Teflon Body Refractometer
PR-23-M is designed for small pipe sizes.
The sensor wetted parts Teflon® PTFE or
Kynar® PVDF (Polyvinylidenefluoride), Sap -
phire (Al
2O3), and Kalrez® are carefully
selected because they have high chemical
and mechanical resistance.
4" pipe size
Vertical line
The external materials AISI 316L (sensor
cover) and polyamid 6.6 (electrical
connector) withstand chemically aggressive
gases and splashes of the process liquid.
The measurement accuracy of either Refracto -
meter model is not influenced by particles,
bubbles, colour or temperature changes of
the process liquid.
Horizontal line
Critical angle
DIGITAL MEASUREMENT
PRINCIPLEOPERATION
Light source
Prism
Reflected light
Solution Refracted light
CCD-camera
Light
source
Critical
angleProcess
medium
Prism
The light source sends light against the
interface between the prism and the
process solution, where the rays meet the
surface at different angles.
The diagnostics program ensures that
the measurement is reliable.
Depending on the angle, some rays
are totally reflected. Some rays are only
partially reflected, and most of the light
is refracted into the process solution.
The angle corresponding to the shadow
line is called the Critical Angle of Total
Reflection. The Critical Angle is a func-
tion of the refractive index and hence the
concentration of the solution.K-Patents Refractometer PR-23-W/M
sensor is factory calibrated to measure
refractive index n
D and temperature
T in standard units. Each sensor has
identical calibration n
D=1.32...1.53
(corresponding to 0-100% b.w.). One
or two sensors can be connected to one
Indicating transmitter.
Because the sensors have identical
calibration, and each sensor gives
Refractive Index n
D and temperature
as output, all sensors can be freely
interchanged without optical calibration
or parameter changes.
Each sensor comes with a calibration
certificate comparing a set of standard
liquids to the actual sensor output. The
calibration and accuracy can be easily
verified on-site with certified refractive
index liquids and K-Patents documented
verification procedure.
REMOTE
USABILITY
The PR-23-W/M ease-of-use is signifi-
cantly improved by a built-in web server
that can be accessed via Ethernet. It is
possible to obtain a remote display with
real-time measurement data and diag -
nostics, and remotely alter instrument
configuration settings or update program
versions without having to go to the field.
Only a cross-over cable and data
acquisition software are needed for
collecting the data from a PR-23-W/M
refractometer. The communication is built
on standard protocols (UDP/IP) and
K-Patents offers ready-to-install software
for the data acquisition.
The K-Patents data acquisition software
is expandable in case the user wants
to modify the program. The program is
written in Java and is therefore system
independent. It can be tailored to almost
any computing environment.
A digital CCD-camera detects the
optical image and the shadow line.
The camera transforms the optical
image point-by-point to an electrical
signal. The exact shadow line position
is located and converted to a reading
in refractive index.
A built-in temperature sensor meas
-
ures the temperature on the surface
of the process liquid. The indicating
transmitter converts the refractive index
and temperature to concentration
units.
Thus an optical image with a dark sector
and a light sector is created.
DESIGN
Air cooling fins
Thermal isolation
(Ceramic) Image digitizer
Thermal conductor
Thermal isolation
(Teflon®)
Sapphire adaptor
PFA lining
Light
source
Temperature
sensor Prism
CORE-Optics
CCD-
camera
O-ring (Kalrez®)
Wetted parts (Teflon®)
K-Patents PR-23-W and PR-23-M Process Refractometers
advance the patented CORE-optics (Compact Optical
Rigid element), which incorporates the optical components:
LED (light emitting diode), prism and CCD-camera as
well as the temperature sensor in one rigid module. The
integral probe type temperature sensor responds fast
to the changes of the process liquid temperature. The
CORE-optics module is isolated from the sensor body
and therefore external forces like pressure, flow and
temperature changes do not influence the measurement.
The CORE-optics is patented.
PTFE Prism gasket
Refractive Index range, standard: Full range, n D1.3200...1.5300 (corresponds to 0...100% b.w.), sapphire prism
Refractive Index range, option: nD1.2600...1.4700, sapphire prism
Accuracy: nD± 0.0002, typically corresponds to ± 0.1% b.w. Repeatability n D± 0.0001, typically corresponds to ±0.05% b.w.)
Speed of response: 1s undamped, damping time selectable up to 5 min
Patented CORE-Optics: No mechanical adjustments and digital measurement with 3648 pixel CCD element, sodium D-line light emitting diode (LED), built-in Pt-1000 temperature sensor
Temperature compensation: Automatic, digital compensation
Instrument verification: With standard nD liquids and K-Patents documented procedure (ISO 9000)
Ambient temperature: Sensor: -20 °C...45 °C (-4 °F...113 °F); Indicating transmitter: 0 °C...45 °C (32 °F...122 °F)
Process temperature: -20 °C...130 °C (-4 °F... 266 °F)
Sensor protection class: IP67, Nema 4X
Approvals for hazardous locations: Non-Sparking/Non-Incendive version: ATEX certified for Zone 2 area, Ex II 3 G, EEx nA IIC T4 Gc; FM certified for Class I, Div. 2, Groups A, B, C & D hazardous locations, T6; CSA certified for Class I, Div. 2, Groups A, B, C & D, T4; IECEx certified, Ex nA IIC T4 Gc Intrinsically safe version: ATEX certified for Zone 0 area, Ex II 1 G, EEx ia IIC T4 Ga; FM certified for Class I, Div. 1, Groups A, B, C & D, T4 (for U.S.A. and Canada); IECEx certified, Ex ia IIC T4 Ga
Approval for electrical safety: cCSAus certified, Equipment Class I, Poll. Deg. 2 / Transmitter, Poll. Deg. 3 / Sensor, Install. Cat. II
SENSOR PR-23-W: Process connection with PFA (Perfluoroalkoxy) lined Saunders (diaphragm)
valve body 2", 3" or 4"; valve body material Graphite cast iron
Saunders body process connection: DIN-flange DN50 PN 16/DIN-flange DN80 PN 16/DIN-flange DN100 PN 16/ANSI-flange 4" 150 lbs/ANSI-flange 3" 150 lbs/ANSI-flange 2" 150 lbs / JIS-flange 10k 50A/ JIS-flange 10k 80A/ JIS-flange 10k 100A
Sensor wetted parts: Teflon® PTFE (Polytetrafluoroethylene), prism gasket Teflon® PTFE, prism sapphire, O-ring Kalrez, adaptor sapphire
Sensor weight: with 2" Saunders body 15 kg (33 lbs)/3" 26 kg (57 lbs)/4" 33 kg (73 lbs)
Process pressure: max. 10 bar (145 psi)
SENSOR PR-23-M: Process connection with Thread G1/2" (F) or Thread NPT 1/2" (F)
Sensor wetted parts: Teflon® PTFE or Kynar® PVDF (Polyvinylidenefluoride), prism gasket Teflon® PTFE, prism sapphire, O-ring Kalrez, adaptor sapphire
Sensor weight: 5.5 kg (12 lbs)
INDICATING TRANSMITTER DTR:
Display: 320x240 pixel graphical LCD with LED backlight, keypad with 8 membrane keys
Current output: Two independent current outputs, 4-20 mA, max. load 1000 Ohm, galvanic isolation 1500 VDC or AC (peak), hold function during prism wash
Ethernet connection: 10/100 Mbit/s, data acquisition over UDP/IP Protocol with data logging software
Power: AC input 100-240 VAC/50-60 Hz, optional 24 VDC, 30 VA
Alarms/Wash relays: Two built-in signal relays, max. 250 V/3 A
Sensor connectivity: One or two sensors can be connected to one DTR. Sensors independent with own parameter sets and usable in different applications. Two current outputs configurable independently to indicate process concentration or temperature of either sensor.
Indicating transmitter weight: 4.5 kg (10 lbs)
Transmitter protection class: Enclosure IP66, Nema 4X (indoor use)
INTERCONNECTING CABLE: IEC 61158-2 compliant two-wire cable
Interconnecting cable length: Standard 10 m (33 ft), max. 200 m (660 ft). Cable fittings to Indicating transmitter: European cable glands M20x1.5 or US conduit hubs
PATENTS: See www.kpatents.com
SPECIFICATIONS
SENSOR PR-23-W
SENSOR PR-23-M
INDICATING TRANSMITTER DTR
- Sensor type and process connection- Desired scale- Properties of process solution- Process temperature range
- Process pipe size- Process flow rate- Supply voltage and frequency- Options and accessories
CORE
-Optics
ORDERING INFORMATION:
PR-23-W SVB 050
PR-23-W SVB 080
PR-23-W SVB 100 Related drawing. No modification permitted without the approval of the authorized person.
1:3
DIM
29.01.2015 HS29.01.2015 TL -
DIM450
-
B
PR-23-W & SVB
Appr.Draw n Drawing number
Drawing description MassGeneral tolerances
Revision Scale Material
B
D
A
E
F
C
51Nm37lbs.ft.
60Nm44lbs.ft.
53Nm39lbs.ft.
Saunders valve body Flange s iz e A B C D E F SV B-A 020 ANSI 2" 150ps i 196 [ 7. 72] 152. 4 [ 6] 47 [ 1. 85] 189 [ 7. 40] 19. 1 [ 0. 75] 120. 7 [ 4. 75] SV B-D050 DN50 10bar 230 [ 9. 06] 165 [ 6. 50] 50 [ 1. 97] 189 [ 7. 40 18 [ 0. 71] 125 [ 4. 92] S VB -J050 JIS 10k 50A 155[ 6.1] 61. 1[ 2. 4] 19[ 0. 75] 120[ 4. 72] SV B-A 030 ANSI 3" 150ps i 260 [ 10. 24] 190. 5 [ 7.5] 78 [ 3. 07] 205 [ 8. 07] 19. 1 [ 0. 75] 152. 4 [ 6] SV B-D080 DN80 10bar 310 [ 12. 2] 200 [ 7. 87] 80 [ 3. 15] 205 [ 8. 07] 18 [ 0. 71] 160 [ 6. 30] S VB -J080 JIS 10k 80A 185[ 7. 28] 90[ 3. 54] 19[ 0. 75] 150[ 5. 90] SV B-A 040 ANSI 4" 150ps i 311 [ 12. 24] 228. 6 [ 9] 92 [ 3. 62] 256 [ 10. 08] 19. 1 [ 0. 75] 190.5 [ 7. 5] SV B-D100 DN100 10bar 350 [ 13. 78] 220 [ 8. 66] 100 [ 3. 94] 256 [ 10. 08] 18 [ 0. 71] 180 [ 7. 09] S VB -J100 JIS 10k 100A 210[ 8. 27] 115. 4[ 4. 54] 19[ 0. 75] 175[ 6. 89]
PR-23-W SVB 050
PR-23-W SVB 080
PR-23-W SVB 100 Related drawing. No modification permitted without the approval of the authorized person.
1:3
DIM
29.01.2015 HS29.01.2015 TL -
DIM450
-
B
PR-23-W & SVB
Appr.Draw n Drawing number
Drawing description
Mass
General tolerances
Revision Scale Material
B
D
A
E
F
C
51Nm37lbs.ft.
60Nm44lbs.ft.
53Nm39lbs.ft.
Saunders valve body Flange s iz e A B C D E F SV B-A 020 ANSI 2" 150ps i 196 [ 7. 72] 152. 4 [ 6] 47 [ 1. 85] 189 [ 7. 40] 19. 1 [ 0. 75] 120. 7 [ 4. 75] SV B-D050 DN50 10bar 230 [ 9. 06] 165 [ 6. 50] 50 [ 1. 97] 189 [ 7. 40 18 [ 0. 71] 125 [ 4. 92] S VB -J050 JIS 10k 50A 155[ 6.1] 61. 1[ 2. 4] 19[ 0. 75] 120[ 4. 72] SV B-A 030 ANSI 3" 150ps i 260 [ 10. 24] 190. 5 [ 7.5] 78 [ 3. 07] 205 [ 8. 07] 19. 1 [ 0. 75] 152. 4 [ 6] SV B-D080 DN80 10bar 310 [ 12. 2] 200 [ 7. 87] 80 [ 3. 15] 205 [ 8. 07] 18 [ 0. 71] 160 [ 6. 30] S VB -J080 JIS 10k 80A 185[ 7. 28] 90[ 3. 54] 19[ 0. 75] 150[ 5. 90] SV B-A 040 ANSI 4" 150ps i 311 [ 12. 24] 228. 6 [ 9] 92 [ 3. 62] 256 [ 10. 08] 19. 1 [ 0. 75] 190.5 [ 7. 5] SV B-D100 DN100 10bar 350 [ 13. 78] 220 [ 8. 66] 100 [ 3. 94] 256 [ 10. 08] 18 [ 0. 71] 180 [ 7. 09] S VB -J100 JIS 10k 100A 210[ 8. 27] 115. 4[ 4. 54] 19[ 0. 75] 175[ 6. 89]
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Date d'upload du document :
vendredi 12 novembre 2021