Elcometer 130 Scm400 Salt Contamination Meter Instruction Manual
Automated Soluble Salt Meter - NACE InternationalAutomated Soluble Salt Meter ... The SSM is a...
Transcript of Automated Soluble Salt Meter - NACE InternationalAutomated Soluble Salt Meter ... The SSM is a...
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Automated Soluble Salt Meter
ISO 8502-6 & 8502-9 Equivalent
Annual International Marine Coatings Summit
October 31, 2008
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Presented by: Mr. Herbert Jansen
electronic developments
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Brief Summary Introduction
About the SSM Equipment
Design
Key Features
Measurement Procedure
Comparison of the Bresle method and the SSM
Independent Testing
Approvals2
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Introduction The SSM is a patented design that provides a hand
held, automated method for detection of soluble salts.
The Model RPCT-07-001 was performance tested and approved as an alternative method of taking conductivity measurements by the United States Navy. Listed in Standard Item 009-32 FY-10
The US Department of Transportation is in the process of approving the SSM for use.
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Measurement Equipment
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SSM Design1. MENU button
2. ENTER button
3. LCD screen
4. Green/Red LED status indicator
5. Piston
6. Magnets
7. Silicone seal
8. Plunger
9. Power/USB port with protective plug
10. Tube connector
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Key Features Only fully automated tool available worldwide Exactly replicates the Bresle method No consumables, sticky residue, syringes
Proven to reduce cycle time for new ship construction (lean manufacturing)
Measures conductivity and fluid temperature Displays both conductivity and concentration Data extraction into any Coatings Technical
File (CTF)
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Measurement Procedure
6 Simple Steps
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Process Steps1. Attach meter to surface2. Inject deionized water into measurement chamber
with one press of the dose bottle3. Meter automatically agitates solution (~ 45 seconds)4. Meter automatically takes reading
Displays reading on LCD screen Stores values electronically
5. Wipe remaining water from surface after removing SSM
6. Flush meter by turning over and injecting water from dose bottle.
6 Total Process Steps ≈ 1 minute
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Attach Meter to Surface
Magnets allow
the meter to
adhere to any
ferrous surface
Removal is
easy with no
sticky
adhesive
residue as
with the
Bresle patch 9
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Inject 3 mL Deionized WaterThe included
dispenser
automatically
doses exactly
3ml of deionized
water every time.
No syringes
required
Reduces the risk
for human error
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Meter Agitates Solution and Extracts Salts
Reading
takes less
than a minute
4 conductivity
sensors and 1
temperature
sensor
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Reading Displayed and Stored
Stores 10
batches of 100
readings
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Data Transfer via USB with SSMlink software
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Clear display and storage of batches
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Data export in .xls format for direct use in any Coating Technical File
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Comparison of methods
Bresle Method
1250 mm2 (footprint variable due to stretching)
SSM
1250 mm2
(circular fixed footprint)
Bresle Method
Manual syringe injection (prone to errors)
SAMPLING AREA
SSM
Automated, with simple press of 3 mL fixed volume dispenser
WATER INJECTION METHOD
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Comparison of Methods
Bresle Method
Patch with adhesive • Prone to leaving adhesive residue on surface
SSM
Magnetic with silicone seal• No effect on surface quality• Proven to seal over deep pits
Bresle Method
Manual • Measurements must be recorded by hand
ATTACHMENT METHOD
SSM
Automatic • Up to 1000 measurements
stored electronically.• Computer upload for QA reporting
In Coating Technical File
RECORD KEEPING
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Comparison of MethodsBresle Method SSM
Dosing Accuracy Variable with user ± 0.05 mL
Air Evacuation Manual syringe removalAutomated (measurement chamber relaxes automatically – no time delays)
Solution Agitation Method
Manual – rub patch with finger Automated – plunger agitation
Measurement Process Steps
17 6
Total Process Time (Reading to Reading)
10 minutes 1 minute
CalculationConductivity measurement converted to equivalent NaCl concentration manually using equation.
Conductivity measurement converted to equivalent NaCl concentration automatically by meter.
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SSM Technical SpecificationsTemperature Sensors 1 probe (stainless steel)
Working Temperature Range 5 – 50 °C (41 – 122 °F)
Temperature Accuracy ± 0.3 °C
Conductivity Sensors 4 probes (stainless steel)
Measurement Range 0-300 µS/cm (0-360 mg/m2)
Measurement Accuracy ± 1% full scale
Indicators Red/Green LED
MemoryHolds up to 1000 measurements (10 batches of up to 100 measurements each)
Power Supply Lithium-ion rechargeable battery
CalibrationNot required; meter is calibrated by manufacturer. Daily validation method provided.
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Independent Testing
Verification of Accuracy and Efficacy
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Field Testing
Patch leaves adhesive and
foam residue on surface
following removal
SSM can attach to any
orientation (vertical,
overhead, etc.)
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Summary of Testing Tested by the US Navy in field studies Reduced labor by over 50%
Ease of use-immediate results recorded electronically
Tested by two independent laboratories against the Bresle method and benchmark laboratory grade conductivity meter Concurrent Technologies Corporation (CTC)- February
2008
Corrosion Control Consultants & Labs, Inc. (CCC&L)-April/May 2008
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Laboratory Test Method 50 test areas were evaluated for 3 different doping
concentrations. 10 doped tests were run on each panel.
A total of 5 panels were used for each concentration.
The center of each identified patch area was doped with 50 µL of solution.
The doped panels were allowed to dry in the laboratory at ambient conditions overnight (~15 hours).
After drying the panels were tested according to the Bresle Test Method.
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SSM
Mean Solution 1: 41.76 µS/cm
Solution 2: 57.02 µS/cm
Solution 3: 89.26 µS/cm
Standard Deviation Solution 1: 2.39 µS/cm
Solution 2: 1.71 µS/cm
Solution 3: 2.46 µS/cm
Mean Solution 1: 41.44 µS/cm
Solution 2: 56.64 µS/cm
Solution 3: 88.5 µS/cm
Standard Deviation Solution 1: 3.48 µS/cm
Solution 2: 4.26 µS/cm
Solution 3: 3.33 µS/cm
Comparison
Bresle
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10/31/2008 25SSM Bresle
40
50
60
70
80
90
Doping Solution 1
Co
nd
ucti
vit
y (
S
/cm
)
SSM Bresle
40
50
60
70
80
90
Doping Solution 2
Co
nd
ucti
vit
y (
S
/cm
)
SSM Bresle
40
50
60
70
80
90
Doping Solution 3
Co
nd
ucti
vit
y (
S
/cm
)
Box Plots of SSM and Bresle Data
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10/31/2008 26
Doping Solution 1
Conductivity ( S/cm)
Den
sit
y
35 40 45 50 55
0.0
00.1
00.2
00.3
0 SSM
Doping Solution 2
Conductivity ( S/cm)
Den
sit
y
45 55 65 75
0.0
00.1
00.2
00.3
0 SSM
Doping Solution 3
Conductivity ( S/cm)
Den
sit
y
75 85 95 105
0.0
00.1
00.2
00.3
0 SSM
Doping Solution 1
Conductivity ( S/cm)
Den
sit
y
35 40 45 50 55
0.0
00.1
00.2
00.3
0 Bresle
Doping Solution 2
Conductivity ( S/cm)
Den
sit
y
45 55 65 75
0.0
00.1
00.2
00.3
0 Bresle
Doping Solution 3
Conductivity ( S/cm)
Den
sit
y
75 85 95 1050.0
00.1
00.2
00.3
0 Bresle
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Conclusion Independent testing demonstrates that both methods
return equivalent results . The mean measured values are almost identical.
The only discernable difference between the two methods is that the SSM has much lower variability in measurements. The variance in SSM measured values is significantly
less than those measured with the Bresle patch.
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SummaryUnited States Patent No. 6,946,844 was issued on
20 September 2005. International patents have been filed. Approved and implemented by US Navy for
soluble salt determination in accordance with NAVSEA Standard Item 009-32 (FY-10)Equivalent to ISO Standard 8502-6 Extraction of
soluble contaminants for analysis -- The Bresle methodAutomatically calculates equivalent soluble salt
concentration in accordance with ISO Standard 8502-9 Field method for the conductometric determination of water-soluble salts
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Questions?
International Sales:
Hedon Electronics Development B.V.
www.solublesaltmeter.com
Phone: +31 (0) 15 2755555
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US Sales:
ARP Instruments, Inc.
www.rpct.net
Phone: (540) 752-7651
electronic developments