Introduction
Control Your Process Regardless of Your Application
Conductivity / Resistivity
Conductivity / Resistivity Systems
When Optimal Performance Is Essential
Electrolytic conductivity is a widely used analytical parameter for water purity analysis,
monitoring of reverse osmosis, cleaning procedures, control of chemical processes, and in
industrial wastewater.
Commonly used techniques
Electrolytic conductivity is a measure
of the total ionic content of a solution.
Two main methodologies to measure
conductivity are:
– 2-electrode sensors are for measure-
ments in high purity water and
relatively low conductivity ranges
– 4-electrode sensors are for mid to high ranges. They are more resistant to fouling than two-electrode designs
METTLER TOLEDO offers both methodologies.
2-electrode sensor design (Fig.1)
An AC voltage is applied across the 2
electrodes, and the resistance between
them is measured. The built-in
temperature sensor provides fast accurate measurement. The cell geometry
and the high solution resistance allow
for very accurate and precise conductivity determination.
Sensors are used for water conditioning and purification stages where they
are capable of detecting minute levels
of impurities in ultrapure water.
4-electrode sensor design (Fig.2)
An AC voltage is applied across the
2 outside electrodes. The principle is
to measure the voltage drop across the
2 inner electrodes. Therefore, polarization errors are eliminated. Since this
technique measures potential drop,
the measurement remains accurate. It
permits easier in-line cleaning and it
can be installed in smaller piping than
inductive sensors.
Outer electrode cylinder
Inner
electrode
rod
Fig. 1: Concentric 2-electrode design
UniCond® Conductivity/Restivity
­Sensors with ISM® (Fig.3)
The UniCond conductivity/resistivity
sensor advancement integrates the
measuring circuit and the physical
­sensor into a single unit. UniCond
conductivity/resistivity sensors provide exceptionally wide measurement
ranges due to their advanced built-in
measuring circuit. The on-board measuring circuit eliminates interference
from lead wire resistance and capacitance. Only digital signals go back to
the transmitter. The UniCond design
mitigates the effects of polarization
enabling the upper range of the
conductivity sensor to be greatly
expanded. UniCond sensors provide
the ability to accurately measure from
ultrapure water to brackish water (up
to 50,000 µS / cm) with a single integrated sensor, greatly simplifying water
treatment instrumentation.
These sensors are used for concentration measurement of acids, alkalis,
and salt process streams.
AC voltage
source
AC voltage
measurement
Measuring
electrodes
Drive electrodes
Fig. 2: 4-electrode sensor design
12
METTLER TOLEDO
US and Canada
Four electrode
sensor
Fig. 3: UniCond®
Application guide for conductivity sensors
Continuous conductivity monitoring
according to USP <645>
USP guideline <645> sets a standard
for the quality assessment of USP
waters based on measurement of the
electrolytic conductivity. There is a
3-stage test in which stage 1 allows
on-line, non-temperature compensated
conductivity measurement. There are
specific requirements for the sensors
and transmitters (see table below).
Thornton instruments fulfill all these
requirements. In addition, Thornton
instruments provide USP and EP setpoints for convenience.
58 031 409
Specification
Conductivity sensor and cell constant accuracy
Conductivity meter
calibration
Instrument resolution
Instrument accuracy
at 1.3 µS / cm
Temperature compensation
Instrument dynamic range
4-electrode sanitary
USP <645>
Verify cell constant within
± 2 % using a reference solution
NIST traceable 0.1 % precision
resistors in place of sensor
0.1 µS / cm
0.1 µS / cm
Must be read uncompensated
102
240-201
243E233
METTLER TOLEDO instruments
meet USP <645> water
conductivity requirements
METTLER TOLEDO
US and Canada
13
Conductivity / Resistivity Sensors with ISM
Conductivity / Resistivity
Accurate and Reliable
UniCond® Conductivity / Resistivity Sensors
For M800 & M300 Transmitters with ISM
UniCond conductivity / resistivity sensors for the METTLER TOLEDO Thornton M800
and M300 ISM provide exceptionally wide measurement ranges due to their
advanced built-in measuring circuit. The on-board measuring circuit eliminates
interference from leadwire resistance and capacitance. Only digital signals go back
to the transmitter. Advanced measuring techniques further contribute to superior
accuracy over the expanded range.
Specifications
Cell constant accuracy
0.01 cm–1 sensor: ± 1 %
0.1 cm–1 sensors: ± 1 % for 0.02 – 5,000 µS / cm;
± 3 % > 5,000 µS / cm
4-E ± 4% Cell constant repeatability
± 0.25%; ± 2% for 4-E
Temperature sensor
Pt 1000 RTD, IEC 60751, Class A, with NIST-traceable calibration
Temperature accuracy
± 0.1 °C at 25 °C; ± 0.5 °C for 4-E
Maximum cable length
91 m (300 ft)
Finish (Sanitary 0.1 cm–1 Ra 0.2 micrometers (8 microinches),
sensors)
316 L SS is electropolished
Insulator material
PEEK; body material for 4-E
Response time
90 % of value in < 5 sec.
Connector
IP 65, mates with 58 080 27X series cable
Features Overview
–Plug and Measure functionality
–Integral high-performance
measuring circuit
–Robust digital output signal
–Calibration data stored internally
–System calibration in-line
Other Highlights
–Extremely wide rangeability:
ultrapure to sea water
–Highest accuracy
–NPT and TriClamp connections
Dimensions of the 316SS flow housing (1000-30)
Flow Housings
(for 0.1 constant 3/4" short conductivity sensors only)
1/8" NPT Outflow port
• 31.8 mm
1.25"
82.6 mm / 3.25 "
25.4 mm
1.00"
1/8" NPT Outflow port
3/4" NPT Outflow port
1/4" NPT Outflow port
1000-31
• 38.1 mm
1.50"
1000-30
82.6 mm / 3.25 "
28.6 mm
1.13"
1/4" NPT Outflow port
3/4" NPT Outflow port
www.mt.com / Thornton
14
METTLER TOLEDO
US and Canada
Dimensions of the PVDF flow housing (1000-31)
(for 0.1 constant 3/4" short conductivity sensors only)
4.3
(109)
0.62
(15.7)
3/4" NPT
2.8
(71)
Microelectr.
Power
X
Pharma Water
0.62
(15.7)
Wastewater
Tri-Clamp Fitting
See Table
[ 104 mm / 4.1"
Dimensions of UniCond
NPT 0.01 and 0.1
constant conductivity
sensors
[ 12.7 mm
0.50"
[ 109 mm / 4.3"
[ 15.7 mm
0.62"
Dimensions of UniCond
NPT 4-E conductivity
sensors
Dimensions of UniCond
NPT 0.1 constant conductivity sensors
3/4" NPT
[ 71 mm / 2.8 "
Tri-Clamp Fitting
X
See Table
Dimensions of the
UniCond sanitary 0.1
constant conductivity
sensor
[ 15.7 mm
0.62"
Dimensions of UniCond
Tri-Clamp 4-E conductivity sensors
X
Tri-Clamp fitting
Ordering InformationOrder Number
Fitting
Insertion Length Fitting / Body
“X” mm (inch)
material
1/8" NPT Outflow port
2-Electrode Sensors
3⁄4" NPTM
34 (1.35)
PTFE / SS
3⁄4" NPTM
132 (5.19)
PTFE / SS
[ 31.8 mm
25.4 mm
3⁄4" NPTM
34
(1.35)
1.25"
1.00"PTFE / SS
3⁄4" NPTM
132 (5.19)
PTFE / SS
82.6 mm / 3.25 "
port
1⁄2" NPTM
29 (1.14) 1/8" NPT Outflow
PTFE / SS
3⁄4" NPT
3/4" NPT Outflow port 86 (2.38)
PTFE / SS 11⁄2" Tri-Clamp®
86 (3.38)
Titanium
Range (µS / cm) *
Cell Const.
(cm–1)
Electrode Material
Max Pressure/Temp
Psig [bar(g)] at °C (°F)
0.01 – 50,000
0.01 – 50,000
0.01 – 50,000
0.01 – 50,000
0.01 – 50,000
0.001 – 500
0.01 – 50,000
0.1
0.1
0.1
0.1
0.1
0.01
0.1
Titanium
Titanium
Monel
Monel
Titanium
Titanium
Titanium
250 (17) at 93 (200)
250 (17) at 93 (200)
250 (17) at 93 (200)
250 (17) at 93 (200)
250 (17) at 93 (200)
250 (17) at 93 (200)
203 (14) at 130 (266) & 450 (31) at 25 (77)
203 (14) at 130 (266)
& 450 (31) at 25 (77)
203 (14) at 130 (266)
& 200 (31) at 25 (77)
1/4" NPT Outflow port
11⁄2" Tri-Clamp
86 (3.38)
316 L SS
0.01 – 3,000
0.1
316 L SS
2" Tri-Clamp
105 (4.13)
316 L SS
0.01 – 3,000
0.1
316 L SS
28.6 mm
[ 38.1 mm
1.13"
1.50"
58 031 404
58 031 409
58 031 407
58 031 408
58 031 406
58 031 410
58 031 413 †
58 031 414 †
58 031 415 †
4-Electrode Sensors
port
82.6 mm / 3.25 "
1" NPTM
28 (1.1) 1/4" NPT Outflow
PEEK
10-1,000,000 4-E
Hastelloy
100 (7) / 93 (200) 3/4" NPT Outflow port
200 (14) / 25 (77)
1" NPTM
28 (1.1)
CPVC
10-1,000,000 4-E
316L SS
50 (3.5) / 80 (176) &
1" NPTM
28 (1.1)
CPVC
10-1,000,000 4-E
Hastelloy
100 (7) / 25 (77) 1.5" Tri-Clamp®
25 (1.0)
PEEK
10-1,000,000 4-E
316L SS
200 (14) / 122 (50) &
2" Tri-Clamp®
25 (1.0)
PEEK
10-1,000,000 4-E
316L SS
70 (4.8) / 284 (140)
1.5" Tri-Clamp®
25 (1.0)
PEEK
10-1,000,000 4-E
Hastelloy
58 031 421
58 031 422
58 031 423
58 031 424†
58 031 425†
58 031 426†
* Megohm-cm = 1/ µS / cm
† FDA compliant materials with certification
­­
to meet EN10204 3.1B. & USP <88> Class VI
® Tri-Clamp is a registered trademark of Apha Laval
UniCond® Conductivity Sensor Calibration Module
- Provides the unique capability to calibrate the digital UniCond® sensor measuring circuit
to meet USP <645> and other regulatory requirements.
- Includes resistances for all ranges of conductivity/resistivity and temperature
- Connects between UniCond® conductvity sensor and an ISM transmitter
- With NIST-traceable certificate of calibration
p/n: 58 082 305
METTLER TOLEDO
US and Canada
15
Conductivity / Resistivity Sensors
Conductivity Sensors for M300
A Comprehensive Series to Meet Industry Requirements
METTLER TOLEDO Thornton provides a full complement of conductivity / resistivity
sensors for M300 with NPT or sanitary fittings. They include various lengths, cell
constants and materials to match the application: titanium concentric electrodes for
high purity water; monel electrodes for rinse waters containing HF; highly polished
316L stainless steel (SS) electrodes for pharmaceutical waters; CPVC and PEEK
sensors with four flush electrodes for solutions with higher conductivity and / or
suspended material; and an epoxy sensor which can also ­measure chemical concentration. Also available with “Intelligent Sensor Management” (ISM) for “Plug And
Measure” capability.
58 031 202
58 031 242
58 031 201
Specifications
58 031 234
Conductivity / Resistivity
Accurate and Reliable
i
Sensor Selection Criteria
Thornton offers a wide variety
of conductivity / resistivity
sensors to accomodate most applications. Use the following criteria to select
the appropriate sensor for your installation:
–Conductivity or resistivity range
–Transmitter
–Mounting type: insertion, retractable
or submersion
–Pipe connection and size
–Chemical compatibility, including
cleaning and disinfection processes
–Temperature requirements, including
steam and / or hot chemical cleaning
www.mt.com / Thornton-Cond
16
METTLER TOLEDO
US and Canada
Cell constant accuracy ± 1 %, except ± 5 % system accuracy for 4-electrode
& 10 constant
Cell constant repeatability ± 0.25 %, except ± 2 % for 4-electrode & 10 constant
Temperature sensorPt 1000 RTD, IEC 60751, Class A, except 50 constant
Temperature accuracy
± 0.1 °C (± 0.2 °F), except 4-electrode sensors
at 25 °C (77 °F)
Cable jacket material
NPT: PVC, 80 °C (176 °F) rating
Sanitary: PTFE, 200 °C (392 °F) rating
Max. sensor distance
60 m (200 ft), except 15 m (50 ft) for 244-Series
Finish
N4 (Ra < 0.2 µm / Ra < 8 µin), 316L SS is electropolished
Insulator material
PEEK (0.01 & 0.1 constant); Noryl (10 constant)
Features Overview
–Precise factory calibration and certification of each cell constant and RTD
–Optimized 4-wire measuring circuitry provides exceptional rangeability and
accuracy, eliminating cable effects
–Quick and easy installation
Typical Applications
–Pharmaceutical water
–Power and steam generation
–Semiconductor water treatment
–Recycle and reclaim water
–Wastewater treatment
For detailed information about conductivity sensors for M300:
Please refer to pages 18-19 for ordering information and drawings
Microelectr.
Power
Pharma Water
Wastewater
Calibration of Conductivity Sensors
Thornton Auto-loop Factory Calibration System
Thornton conductivity sensors are industry standards for determining water purity
and solution concentration. Thornton ISO 9001 factory calibration and certification
are NIST and ASTM traceable using Thornton’s unique ultrapure auto-loop calibration system. Certification includes test and accuracy, plus ­materials as noted in
sensor specifications.
USP pharmaceutical water monitoring requirements are met with sanitary sensors
which provide accurate conductivity and temperature measurement. 316L stainless
steel Tri-Clamp mounting sensors have an electropolished finish with roughness
average (Ra) < 0.2 µm, < 8 µin.
4-electrode sensors are ideal for monitoring high conductivity applications,
­clean-in-place (CIP) solutions and deionizer regenerant concentrations.
?
Did You Know
Thornton conductivity
systems are routinely used
by other instrument suppliers as the
reference to provide traceability when
calibrating their instrumentation.
Conductivity Standard Solutions
Provided for sensor verification and recalibration, conductivity standards are produced, analyzed and documented in the METTLER TOLEDO Thornton ISO9001
certified facility with processes similar to those used to calibrate high accuracy
Thornton conductivity sensors. They are provided with label and certificate with
lot number, certified value, expiration date, plus ASTM and NIST traceability data.
These standards are analyzed and used at equilibrium with the atmosphere.
Specifications
Standard
25 µS / cm, 500 ml, HCl
100 µS / cm, 500 ml, KCl
1000 µS / cm, 500 ml, KCl
10,000 µS / cm, 500 ml, KCl
100,000 µS / cm, 500 ml, KCl
Accuracy Shelf Life
Order Number
± 3 % 6 months 58 078 001
± 1 %
12 months
58 078 002
± 1 %
12 months
58 078 003
± 1 %
12 months
58 078 004
± 1 %
12 months
58 078 005
METTLER TOLEDO
US and Canada
17
Conductivity / Resistivity Sensors
Conductivity / Resistivity
Accurate and Reliable
Conductivity Sensors for M300
Drawings
NPT 0.01 and 0.1 Constant
42 mm
1.65"
X < 3"
1⁄2"
10 Constant
12.7 mm
0.50"
or 3⁄4" NPT
42 mm
1.65"
3⁄4"
4"
15.7 mm
0.62"
NPT
12.7 mm
0.50"
NPT
Submersion 0.1 Constant
1" NPT
15.7 mm
0.62"
Sanitary fitting, see table
NPT 4-Electrode, CVPC
151.4 mm/5.96"
82.3 mm/3.24"
Sanitary, VP
64.5 mm
2.54"
12.7 mm
0.50"
3⁄ " NPT
4
111.5 mm
4.39"
"X"
25.4 mm
1.00"
29 mm
1.15"
33.4 mm
1.32"
Sanitary, Standard
25.4 mm
1.00"
19.1 mm/0.75"
3⁄
X > 3"
86.6 mm
3.41"
41 mm
1.62"
27.9 mm
1.10"
25.4 mm/1.00"
6.35 mm/0.25"
"X" see table
15.9 mm
0.625"
VP connector
1" NPT
1" NPT
26.9 mm/1.06" wrench flats
VP connector
Tri-Clamp fitting, see table
126.7 mm/4.99"
316SS Flow Housing (58 084 000)
1⁄8"
NPT 4-Electrode, PEEK
57.4 mm
2.26"
NPT outflow port
25.4 mm/1.00"
VP connector
31.8 mm
1.25"
82.6 mm
3.25"
3⁄4"
NPT sensor port
1" NPT
26.9 mm/1.06" wrench flats
25.4 mm/1.00"
1⁄8"
NPT inflow port
Sanitary 4-Electrode
105.2 mm/4.14"
PVDF Flow Housing (58 084 001)
1⁄ "
4
27.9 mm
1.10"
38.1 mm
1.50"
NPT outflow port
"X"
25.4 mm/ 1.00"
38.1 mm
1.50"
82.6 mm
3.25"
3⁄4"
NPT sensor port
28.6 mm/1.13"
1⁄4"
www.mt.com / Thornton-Cond
18
METTLER TOLEDO
US and Canada
NPT inflow port
VP connector
Tri-Clamp fitting, see table
Microelectr.
Power
Pharma Water
Wastewater
Ordering Information
Electrode Maximum Pressure
Process Connection
Insertion
Cable
Material
– Fitting
– Material
Length "x"
Length
Connector Order Number
2-Electrode Sensors
– Measuring range 0.02 – 2,000 µS / cm (cell constant 0.1 cm–1) a
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
34 mm (1.35") 0.5 m (1.5 ft)
S
240-201
3⁄4" NPTM
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F)
PTFE / SS
132 mm (5.19") 0.5 m (1.5 ft)
S
240-202
3⁄4" NPTM
Monel
17 bar(g) at 93 °C (250 psig at 200 °F)
PTFE / SS
34 mm (1.35") 0.5 m (1.5 ft)
S
240-203
3⁄4" NPTM
Monel
17 bar(g) at 93 °C (250 psig at 200 °F)
PTFE / SS
132 mm (5.19") 0.5 m (1.5 ft)
S
240-204
Titanium
7 bar(g) at 95 °C (100 psig at 203 °F) 3⁄4" NPTM
PVDF
29 mm (1.15")
–
S
240-207
34 bar(g) at 25 °C (500 psig at 77 °F)
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 1⁄2" NPTM
Noryl
29 mm (1.14") 0.5 m (1.5 ft)
S
240-213
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
Noryl
29 mm (1.14") 0.5 m (1.5 ft)
S
240-214
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
34 mm (1.35")
3 m (10 ft)
S
240-215
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 1⁄2" NPTM
PTFE / SS
29 mm (1.14") 0.5 m (1.5 ft)
S
240-216
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
34 mm (1.35") 6.1 m (20 ft) c
240-217
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 1⁄2" NPTM
PTFE / SS
29 mm (1.14")
3 m (10 ft) c
240-218
3⁄4" NPTM
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F)
PTFE / SS
34 mm (1.35")
9 m (30 ft) c
240-220
Titanium
10 bar(g) at 155 °C (150 psig at 311 °F) 1.5" Tri-Clamp Titanium
86 mm (3.38") 0.5 m (1.5 ft)S
243E221 d
31 bar(g) at 25 °C (450 psig at 77 °F)
316L SS
10 bar(g) at 155 °C (150 psig at 311 °F) 1.5" Tri-Clamp 316L SS
86 mm (3.38") 0.5 m (1.5 ft)S
243E223 d
31 bar(g) at 25 °C (450 psig at 77 °F)
316L SS
10 bar(g) at 155 °C (150 psig at 311 °F) 2" Tri-Clamp 316L SS
105 mm (4.13") 0.5 m (1.5 ft)S
243E227 d
31 bar(g) at 25 °C (450 psig at 77 °F)
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
34 mm (1.35") 0.5 m (1.5 ft)
VP
240-231
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
132 mm (5.19") 0.5 m (1.5 ft)
VP
240-236
316L SS
10 bar(g) at 155 °C (150 psig at 311 °F) 1.5" Tri-Clamp 316L SS
85 mm (3.35")
–
VP
243E233 d
31 bar(g) at 25 °C (450 psig at 77 °F)
316L SS
10 bar(g) at 155 °C (150 psig at 311 °F) 2" Tri-Clamp 316L SS
104 mm (4.10")
–
VP
243E237 d
31 bar(g) at 25 °C (450 psig at 77 °F)
– Measuring range 0.002 – 200 µS / cm (cell constant 0.01 cm–1) a
Titanium
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
60 mm (2.38") 0.5 m (1.5 ft)
S
240-101
– Measuring range 50 – 40,000 µS / cm (cell constant 10 cm–1) a
Graphite
17 bar(g) at 93 °C (250 psig at 200 °F) 3⁄4" NPTM
PTFE / SS
86 mm (3.38") 0.5 m (1.5 ft)
S
240-401
4-Electrode Sensors e
– Measuring range 10 – 650,000 µS / cm
316L SS d
5 bar(g) at 150 °C (70 psig at 302 °F)
1" NPTM
PEEK
25 mm (1.00")
–
VP
244-633
14 bar(g) at 50 °C (200 psig at 122 °F)
316L SS d
5 bar(g) at 150 °C (70 psig at 302 °F)
2" Tri-Clamp PEEK
25 mm (1.00")
–
VP
244-634
14 bar(g) at 50 °C (200 psig at 122 °F)
Hastelloy C d 5 bar(g) at 150 °C (70 psig at 302 °F)
1.5" Tri-Clamp PEEK
25 mm (1.00")
–
VP
244-636
14 bar(g) at 50 °C (200 psig at 122 °F)
316L SS d
5 bar(g) at 150 °C (70 psig at 302 °F)
1.5" Tri-Clamp PEEK
12 mm (0.50")
–
VP
244-638
14 bar(g) at 50 °C (200 psig at 122 °F)
Hastelloy C 7 bar(g) at 93 °C (100 psig at 200 °F) 1" NPTM
PEEK
28 mm (1.10")
–
VP
240-630
14 bar(g) at 25 °C (200 psig at 77 °F)
316L SS
3.5 bar(g) at 80 °C (50 psig at 176 °F)
1" NPTM
CPVC
28 mm (1.10")
–
VP
244-631
7 bar(g) at 25 °C (100 psig at 77 °F)
Hastelloy C
3.5 bar(g) at 80 °C (50 psig at 176 °F)
1" NPTM
CPVC
28 mm (1.10")
–
VP
244-635
7 bar(g) at 25 °C (100 psig at 77 °F)
a MΩ × cm = 1 / (µS / cm)
S = Standard connector used with 58 080 25X patch cords only.
b See pages 34-35 for retractable housing (also used for pH and ORP)
See page 74.
c Tinned leads – no patch cord required
VP = VarioPin sealed connector used with 58 080 20X patch cords only
d Includes material certification to meet EN 10204 3.1B & USP<88> ClassVI
(58 080 101 3-ft adapter cable can connect an existing 1XXX-67 e 4-electrode sensor, maximum patch cord length 15 m (50 ft)
patch cord to a VP sensor).
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Conductivity / Resistivity Sensors
Conductivity / Resistivity
Accurate and Reliable
Boiler Water Conductivity Sensors
Rugged and Reliable
Boiler and steam piping can be protected from upset conditions using a continuous
conductivity measurement with readout in µS / cm, mS / cm or ppm TDS. The sensor
can monitor systems to 14.5 bar (210 psig) saturated steam conditions without
sample cooling. Accurate temperature compensation is provided. The transmitter
readout can be located up to 61 m (200 ft) away from the sensor and retransmit
alarm, control and / or analog signals even further. Automatic blowdown control
allows close management of boiler water quality and usually reduces the amount
of blowdown, saving a significant amount of energy.
Specifications
Process connection
Insertion length
Cable length
Cable jacket material; rating
Wetted materials
Maximum pressure/temperature
Range
Cell constant Temperature sensor
Temperature accuracy
Certification
1" NPT
28 mm (1.10")
0.6 m (2 ft)
PTFE; 200 °C (392 °F)
316SS, PEEK, Viton®
35 bar (500 psig) at 25 °C (77 °F);
17 bar (250 psig) at 200 °C (392 °F)
10 to 20,000 µS / cm uncompensated
0.4 cm-1
Pt 1000 RTD, IEC 60751 Class A
0.1 °C at 25 °C (0.1 °F at 77 °F)
ASTM / NIST-traceable certificate of accuracy for
conductivity and temperature
Viton and Kalrez are retgistered trademarks of DuPont Performance Elastomers LLC
Features Overview
–Minimize corrosion and scaling with highest accuracy measurement and consistent blowdown control
–Reduce energy costs with continuous monitoring and automatic control rather than grab sampling with
manual control
–Save operations costs by direct measurement without sample cooler and cooling water, for samples up to
14.5 bar (210 psig) saturated steam
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METTLER TOLEDO
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–Install with flexibility of in-line
­mounting or side-stream flow h­ ousing
–Use with versatile Thornton M300 or 770MAX transmitters with choice of built-in control options
Power
Ordering Information
Sensor Boiler water conductivity sensor with VP connector for M300
Order Number
58 031 264
Housing
Flow housing, 316SS, 1⁄4" NPT inlet / outlet
58 084 016
101.6 mm
4"
27.9 mm
1.10"
1.00 mm
25.4"
1" NPT
Dimensions of the boiler water conductivity sensor
76.2 mm
3.00"
¼" NPT
44.5 mm
1.75"
37.8 mm
1.49" ()
1" NPT
Dimensions of the flow housing 58 084 016
¼" NPT
Flow housing 58 084 016
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Conductivity / Resistivity Sensors
Pharma Waters Verifiers
Accurate and Reliable
Pharma Water Verifiers
UniCond® ISM Verifier for M800 and M300 ISM
Pharma Waters Verifiers are modified calibrators used with the respective transmitter firmware features to easily demonstrate that the conductivity and temperature
measurement circuitry complies with the electronics accuracy specification of USP
<645> Water Conductivity as well as global Pharmacopeial requirements. These
verifiers are available in both UniCond® and M300 analog versions.
Features Overview
–Easy-to-use confirmation of the Conductivity and Temperature accuracy require-
ments for the measurement electronics to meet USP <645> Water Conductivity
–Uses NIST traceable resistors for global acceptance
–Simple, menu driven transmitter interface guides the user through the verification process
–Compliant to EP, JP, ChP, IP, other International Pharmacopeias
–Available for use with the Thornton M800 and M300ISM for UniCond sensors & M300 analog transmitters for analog sensors.
Applications
–Required for compendial pharamaceutical water applications to demonstrate compliance with instrument requirements of USP <645> and global Water Con-
ductivity regulations.
–Recommended for all low conductivity pharmaceutical water applications <5µS/
cm.
www.mt.com / Thornton
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Pharma Water
Ordering Information
Description
Pharma Waters UniCond® ISM Verifier for Thornton M800 and M300 ISM transmitters
Pharma Waters Verifier for analog conductivity sensors and Thornton M300 transmitter
Order Number
58 082 311
58 082 301
Nominal Simulated Values and Resistances
Pharma Waters UniCond ISM Verifier/M800, M300ISM
Resistance/Conductivity
Resistance/Temperature
200KΩ
75KΩ
47KΩ
33KΩ
1.10KΩ
1.33KΩ
Nominal Simulated Value
0.50µS/cm
1.3µS/cm
2.1µS/cm
3.0µS/cm
25°C
25°C
Pharma Waters Verifiers for analog conductivity sensors/M300
Resistance/Conductivity
Resistance/Temperature
200KΩ 100KΩ
75KΩ
47KΩ
41KΩ 33KΩ
1.05KΩ
1.097KΩ
1.33KΩ
Nominal Simulated Value
0.50µS/cm
1.0µS/cm
1.3µS/cm
2.1µS/cm
2.4µS/cm
3.0µS/cm
13°C
25°C
85°C
?
Did You Know
The Pharma Waters Verifiers are
designed to simulate specific conductivities and temperatures when used with
either an M300 transmitter or a UniCond®
conductivity sensor and M300 ISM or M800
transmitter. The simulated conductivity and
temperature values represent values that are
in the range of conductivity limits found in
USP <645> Water Conductivity.
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Pure Light
Water Quality
Simple Water Quality Indication
656 Pure Light™
Water Quality Indicator with Timer
The Pure Light™ is a go/no-go indicator for the quality of pure water from purification systems including service deionization, reverse osmosis, and distillation.
Under normal conditions, the green light is illuminated, indicating that the water is
in the acceptable purity range. When the purity falls below the user selected set
point, the indicator light switches from green to red. The user can activate the time
function to also alarm based on time and prevent organic or biological fouling of
the system. This easy to interpret, go/no-go, signal alerts the user to take appropriate action.
Features/Benefits:
- Low voltage operation - the indicator operates on 6 VAC.
- Five ranges, user-selectable - jumper permits the user to select the acceptable
purity level threshold to meet the application. Threshold limit can be re-set as
needed to one of the following five settings.
Restivity
Conductivity
50 kΩ-cm
20 μS/cm
200 kΩ-cm
5 μS/cm
500 kΩ-cm
2 μS/cm
1 MΩ-cm
1 μS/cm
2 MΩ-cm
0.05 MΩ-cm
- BioFouling timer - includes selectable timer that indicates the elapse of 90 or 180 days since the last servicing.
- Dual mounting threads - supplied with two mounting threads 1/2" NPT and 9/16" - 12 for convenience and reduced inventory.
- Multiple lights, one transformer - up to three Pure Lights can be operated from one 120V transformer which has screw terminals. Only one electrical outlet is required to monitor multiple points. Each light for 120V is supplied with a 10 ft (3 m) connecting wire.
- Red & green LED's - for reliability, two bright Light Emitting Diodes (LED's) are used to indicate above or below threshold status, representing the need for regen-
eration or replacement of ion exchange resin.
www.mt.com / Thornton
24
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Microelectr.
Power
Pharma Water
Specifications
Accuracy
± 10% at 25 °C, typical
Threshold settings
Restivity
50 k, 200 k, 500 k, 1 M & 2 MΩ-cm
Conductivity20, 5, 2, 1 & 0.5μS/cm
Visual Indicationcontinuous green = satisfactory water quality and operation within time limit
continuous red = unacceptable water quality
flashing red = time limit (90 or 180 days) exceeded, satisfactory water quality
Power requirement115 VAC ± 10% 50/60 Hz, 230 VAC ± 10% 50/60 Hz, or 6 VAC 50/60 Hz
Timer elapsed time is retained in memory on power loss
Installation fittings1/2" NPT & 9/16" - 12
Operating pressure0-150 psi (10 bar(g))
Operating temperature+5°C to +45°C (Measurement is not temperature compensated)
Storage temperature-40°C to +50°C
MaterialsNoryl SE 100X body, gold-plated electrodes, Viton o-ring, Lexan 121 cover
WeightLight and transformer - 0.9 lbs (0.4 kg)
Rating120 VAC transformer cULus listed (Canadian and US standards)
230 VAC transformer, CE compliant, European round pin plug
Ordering Information
Description
Pure Light with 120 VAC Transformer
Pure Light without Transformer
Pure Light with 230 VAC Transformer
Accessory
120 V Transformer
Order Number
58 001 031
58 001 030
58 001 032
36143
! 1.25
(32.74)
2.75
(70)
1.75
(44.4)
1.25 (32)
Wrench Flats
4.15
(105.3)
1.09
(27.7)
1/2 NPT
TRANSFORMER
1.57
(40)
10 ft. (3 m)
Cable
0.460 (16.7)
0.300
(7.6)
9/16-12 UNC
Thread
Dimensions: inches (mm), except where noted otherwise
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