H2S IN LIQUIDS ANALYZER
CONTINUOUS ON-LINE PROCESS
CRUDE WATER AMINE NAPHTHA GASOLINE DIESEL
Model 205
FEATURES - PATENTED & EXCLUSIVE
Conformity to ASTM Methods
Specific to H2S Only
Accurate and Continuous Analysis
Quantitative Measurement in PPB,
PPM & Percent Levels
Push Button Validation
RS-232/485 Communication
Proven Reliability
Normal Calibrations Not Required
Fast Response Time
General Purpose or Explosion Proof
Awareded Preferred Vendor by
Saudi Aramco
Awarded Preferred Vendor by Saudi Aramco
for the Model 205 H2S in Crude Analyzer
Description & Principle of Operation
The ability to analytically quantify H2S in non-volatile liquids, such as naphtha, water, light crude
oil, and gasoline, are enhanced with the Sample Transfer StripperTM (Patented Membrane Technology) and ratiometric colorimetric technologies offered by Analytical Systems International
Keco (ASI KECO).
The principle of operation requires a continuous free flowing liquid sample into a heater where the
Sample Transfer StripperTM (STS) unit separates the liquids from the H2S gas sample. An H2S
free air or nitrogen carrier then sweeps the H2S gas sample to the H2S analyzer for quantitative
analysis in ppb w, ppmw, and up to saturation levels. A liquid validation by PermTubeTM is optional.
The detection technology is based on chemically specific density changes. The lead acetate
sensing tape utilized in our analyzers is the only detection method that is absolutely specific to
H2S. Optical illumination & detection are integrated for maximum resolution accuracy. Economic
payout is increased because of this automated continuous process or laboratory analyzer.
(281) 516-3950 FAX (281) 351-8925
www.asikeco.com Sales@asikeco.com
REGULATOR
CARRIER AIR
FLOW CONTROLLER
OVEN
PRINTER
HYRDROCARBON
FREE AIR
3
1
SECONDARY
FILTER
NEEDLE
VALVE
SAMPLE
INPUT
H2S
DETECTOR
SAMPLE
TRANSFER
2 STRIPPER
(STS)
DEDICATED
MICROPROCESSOR
COMMUNICATION
& ANALYSIS
RS-232/485
VENT
SAMPLE
FLOWMETER
FLOW
DIAGRAM
PRE-HEAT
EXCHANGER
SAMPLE WASTE
20 PSI MAXIMUM BACKPRESSURE
SAMPLE
SWEEP
DIGITAL
DISPLAY
4-20 MA
OUTPUT
& ALARMS
MODEL 205 SPECIFICATIONS
POWER INPUT:
110 VAC 50/60 Hz @ 400 Watts.
220 VAC 50/60Hz (Optional)
TEMPERATURE:
Operating: 5C to 50C (Heating Optional)
Storage: 0C to 70C
ANALYTICAL PERFORMANCE:
(APPLICATION DEPENDENT)
Range Customer Specified: PPB W Thru PPM W
to Saturation (Lower Detectable Limit < 100 PPBW)
Accuracy: + 2% of Full Scale
Repeatability: + 1% of Full Scale
Resolution: 1 PPB
Linearity: + 1% of Full Scale
Drift: Nil
Temp. Coefficient: 0.01% 1 Degrees C
Analysis Time: 0.7 Seconds (Concentration Dependent)
ACCESSORY OPTIONS:
Spin Clean Filter w 1 liter/min. sweep
Type Z Purge, Type X Purge
Cabinet Heater & Thermostat
Special Sampling Systems
Validation System
Air Purifier For Hydrocarbon Free Carrier
DISPLAY:
Alpha Numeric LCD
MEMORY / COMPUTER INTERFACE:
RS-232/485 Serial Port
ANALOG OUTPUT SIGNAL:
4-20ma Linearized (standard)
4-20ma Isolated Linearized (Optional)
UTILITY GASES:
Air carrier clean and H2S free 200 ml/min.
Air or Nitrogen Purge Supply (Optional)
ALARM CONTACTS (Optional):
High and Low Concentration Relay
Diagnostic Trouble Shooting Includes:
Sample, Air, Purge Flow & Temp. Alarm
AREA CLASSIFICATIONS:
General Purpose (Standard)
Purge Class I Div. II or I, GR. B,C,D (Optional)
CABINET DIMENSIONS & WEIGHT:
Stainless Steel NEMA 4X
36" H x 24" W x 10" D
90cm H x 60cm W x 26cm DM
200 lbs. or 100 Kilograms (Without Options)
Quotation Information:
Analytical Systems International provides design and application engineering assistance for the users analyzer
requirements. For a quotation, please complete ASI Analyzer Quote Request Form at www.ASIWebPage.com
Analytical Systems reserves the right to make revisions and or changes without notice. Analytical Systems shall not be liable for any errors or omissions
made or any damages resulting from the use of the analyzer, information, or the manual. 03095 1995 Printed in the United States of America.
