OilGuard / OilGuard Ex The Original – More than 40

OilGuard / OilGuard Ex
The Original – More than 40 years experience
Page 1
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Objective : To measure trace amounts of Hydrocarbons in
Produced water before discharge overboard
Page 2
Doc. No. 11906 E/2
OilGuard 2 / OilGuard 2 Ex
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Fluorescence measurement
No solvents required
Measures dissolved and dispersed oil
Immediate response to changing process
conditions (response time < 1 sec.)
Low impact of solids, chemicals and salt
on the measurement ( subject to
individual Fluorescence characteristics )
Can be correlated to any recognized
standard reference method
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Modular design
» Three different basic models:
OilGuard 2
for general applications
OilGuard 2 Ex
For hazardous areas
OilGuard ExM for maritime applications
according IMO standard
Page 5
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Modular design
» 3 different type of measuring
cells are available:
Contact less measuring cell
PVDF
Oil in produced Water
Contact less measuring cell
stainless Steel
Drinking water, process
water, waste water
Closed measuring cell
Condensate, cooling
water, heat exchangers,
drinking water
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Modular design
Easy integration of the
instrument into the
process (plug and play)
The OilGuard can be
tailored to fit exactly the
application
Page 7
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
OilGuard 2 with
wall mount and
conditioning
system
Page 8
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Low cost of ownership
Simple maintenance
Housing and measuring cell are
separated:
Maintenance without switching off the
instrument
Purge air for the measuring cell:
Avoids condensation of the lenses /
protection windows
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Low cost of ownership
Simple maintenance
True non-contact measuring cell:
Free-fall measuring stream (1):
2
2
No contamination of the optics
1
Protection windows in front of the
measuring optics (2):
3
Protect the measuring optics against
contamination and splashing
Easy cleaning without any tools
Protection tube covers the free-fall (3):
Protect the lenses against splatter
No ultrasonic cleaning device needed
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Low maintenance
PVDF inlet tube:
No fouling / no contamination
Far Better than Duplex materials
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Sample flow
within the
sample
conditioning
system
Sample Overflow
Sample Inlet
Discharge of sand
and coarse
particles
Conditioned sample
to OilGuard
Page 12
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
As known, the calibration of an oil trace analyser
depends on a number of
factors: kind of oil, possible additives, droplet size, etc.
In most cases, customers
expect that the display on the OilGuard corresponds to
the value
measured in the laboratory. However, depending on the
method used in
the laboratory, the results will be different.
To adapt the measured values of the OilGuard against
the results obtained
from the lab, it is necessary to analyse a good number
of samples in various
concentrations and compare these results with the ones
obtained by the
OilGuard. With this method, a correlation between the
method used in the
lab and the online measurement can be established.
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Reliable measurement
State of the art dual-beam Setup with
optimized wavelength configuration:
Guarantees highest accuracy and
stability of the measurement
Fluctuations and light source aging are
automatically compensated
The relevant HC components are
measured
Reduces the impact of solids
Zero point drift < 1 % per year leads to
Lower recalibration frequency
Lower maintenance
Lower costs of ownership
Page 14
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Instant reading verification
Quality management
Unique secondary solid reference
standard from Sigrist:
Verification of the measuring is possible
at any time
Fast recalibration without chemicals and
without any tools
No specialist’s required
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Integrated control unit with
touch screen and data logger
Modern design – intuitive operability:
Touch screen with colour display
Measured values, graphics, status and
alarm indications can be displayed
selectively
An internal data storage allows the
presentation of the measured data of the
last 32 days
Password protected
Extensive communication options
including integrated web server , Profibus
Etc
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Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Range: 0-100 FLU /
0-1000 ppm
Sensitivity: < 1 ppm
Sample temperature
with closed flow cell: up to
60°C, with free fall cell: up to
95°C
Easy control and adjustment
using calibration glass
UV-Fluorescence based
instrument
OilGuard / OilGuard Ex
The Original – More than 40 years experience
OIW MONITOR CALIBRATION – WHY ?
Depending on the composition, each mineral oil has it‘s
specific fluorescence intensity when excited with the same
UV light source
Moreover, the fluorescence intensity might be influenced by
local sample conditions such as temperature, pressure,
concentration range, droplet size distribution, additives, etc.
This results in the requirement to have an installation
specific calibration curve and preferably a sample
conditioning system (for reporting)
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Oil Concentration vs Fluorescence ( FLU) response
Page 19
Doc. No. 11906 E/2
OilGuard / OilGuard Ex
The Original – More than 40 years experience
OilGuard / OilGuard Ex
The Original – More than 40 years experience
OILGUARD AS A REPORTING TOOL
Statoil in Norway did an extensive test to check the suitability of a Sigrist
OIW monitoring system as a reporting tool in May 2004
The test proved that the system can be correlated to the existing IR and new
modified GC Standard reference methods with excellent correlation values
Interesting: After calibration, only the Sigrist system showed the true oil
value as injected!
IR method showed variations up to 40%! Therefore, the internal accepted
tolerance range within Statoil is very large
OilGuard / OilGuard Ex
The Original – More than 40 years experience
180
160
Correlation of the Sigrist
monitor versus the current
IR Standard Reference
method
140
y = 1.025x
R2 = 0.9961
Lab IR
120
100
80
(Test made by OPUS test
laboratory, Orkney /
Scotland)
60
40
20
0
0
20
40
60
80
OilGuard
100
120
140
160
OilGuard / OilGuard Ex
The Original – More than 40 years experience
GC analysis v Oil Guard
Correlation of the Sigrist monitor
versus the new ISO 93779377-2 Mod.
GCGC-FID Standard Reference
method
35
30
25
20
mg/l
GC Samples
Oil Guard Reading
15
10
5
0
1
2
3
S am ple
4
5
(Test made by OPUS test
laboratory, Orkney / Scotland,
2006)
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Comparison of real oil concentration and readings of the
Sigrist monitor,
monitor the IR and the GC method after calibration
(left column: injected = real oil concentration)
OilGuard / OilGuard Ex
The Original – More than 40 years experience
Increasing oil concentration by injection and response of the Sigrist monitor.
Note the quick response after switching the oil injection off and on again!
OilGuard / OilGuard Ex
The Original – More than 40 years experience
OilGuard / OilGuard Ex
The Original – More than 40 years experience
We thank you for your
attention
For further information please contact
John Kupczak
SIGRIST UK Business Development
07540 109374
johnkupczak@photometer.com
www.photometer.com
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Doc. No. 11906 E/2