StarTOC - On-Line THC Analyzer

By offering multiple analytical methods, Star is able to recommend the best technique for the application in question, without bias.

For THC (Total Hydrocarbons)in water, the Oxidation/NDIR CO2 Detection is the method of choice. It detects and has stochiometric recovery for all species of hydrocarbons and conforms to ASTM 5310 CID, 4839-88, 4779-88 and EPA 415.1, 9060.

Only Star offers the features and reliability of operation associated with its team’s pioneering experience in TOC and THC analyses since 1969.

Excellent accuracy from low parts-per-million to moderate concentration levels of all hydrocarbons, with minimum maintenance.

• Standard Method 5310 C/D
• EPA 415.1
• EPA 9060
• ASTM D 4839-88
• ASTM D 4779-88
• Boiler Feedwater
• Cooling Water
• Drinking Water
• Wastewater (Limited)
• River Water

• Microsoft Windows Touch Screen Computer
• Continuous THC
• 2 Alarm Levels 1 Master Fault Alarm
• 4-20 mA Outputs
• RS-232C/485 Outputs
• Separate Electronics & Liquid Compartments
• Powder Coated Steel Enclosure
• Low Maintenance

• Auto-Validation
• Auto-Cal/Auto-Clean
• Automatic Multi-Range
• Multi-Stream Analysis
• Alkalinity Direct Analysis
• Network Ready
• Fiberglass Enclosure

The liquid sample stream is delivered bypump(P-l) and mixed with a reagent delivered by pump(P-2). The mixture is then directed to the Reactor, where the hydrocarbons are oxidixed to C02. A computer controlled Mass Flow Controller (MFC) provides stable carrier flow which is important for reliable analysis.

The Star NDIR is completely solid state, with no moving parts to wear out or degrade. It uses a dual wavelength ratioing technique with analytical and reference detectors, which compensate for drift.

Star uses the continuous measurements of hydrocarbons, not batch differential analysis, because this method provides a more representative sample for more accurate THC analysis.

For those applications with significant inorganic compounds or require alkalinity analysis, incorporation of the optional Alkalinity Module is suggested.

Total Alkalinity, Hydroxide Alkalinity, Carbonate Alkalinity. Bicarbonate Alkalinity and Free Carbon Dioxide are determined and displayed as Total Alkalinity. In those cases were carbonates would be considered an undesirable background or interference, it can automatically be programmed to be subtracted from the THC analysis.

Benchmark is the European NAMUR specified validation technique, whereby on command a chemical calibration standard is automatically introduced to the analyzer and the response is compared to the previous analyzer calibration. If the analyzer response falls within a certain specified limit, the computer/output indicates "Benchmark Passed". If the response falls outside specified performance limits, either a "Maintenance Request" or a "Fault" alarm is activated, depending on preset tolerances.

Thus, in cases of leaks or process spills, when the analyzer performance is questioned, benchmark can rapidly and automatically validate analyzer performance. It eliminates time consuming and unnecessary recalibration cycles, which take the analyzer out of service just when it is most critically needed. Benchmark may be on-demand, or operator programmed for designated day and time activation on a repetitive basis.

Auto-Cal and Auto-Clean utilities are also available.

Star analyzers use a Microsoft Windows CE Computer to ensure that you are always up-to-date with the latest technologies. By incorporating a modular software design, Star is capable of offering advanced options unavailable elsewhere.

Star’s utilization of an onboard Windows CE computer allows direct networking. Central control of analyzer operation and data mangement are easily facilitated.

The Star Total Hydrocarbons Analyzer can handle suspended solids up to 1,000 microns without filtration, thus providing a truly representative sample.

Star furnishes recommended installation drawings. The user must provide the following:

1. Electrical Source (110/220 VAC 1000 watt service with cutoff switch)
2. Sample flow of a minimum of 10 ml/minute. A fast bypass loop is recommended.
3. Gravity fed drain with air break.
4. A source of C02-free air or oxygen with a maximum flow rate of 300 cc/minute at 15 psig. (Optional Star Oxygen Generator requires electricity only.)

Star’s distribution network offers complete installation assistance and stocks ancillary items, such as valves, regulators, fittings, tubing, filters, etc...

• Specific Interference-Free CO2 Detection
• Dual-Wavelength Ratioing Compensates for Drift
• Computer-Controlled for Accuracy
• Sapphire Protected Optics
• Non Corrosive, Non-Reflective Sample Cell (Borosilicate)
• No Moving Parts for Easy Maintenance and Service
• No Critical Realignment Required

Nominal at 25°C. Subject to custom application requirements.

• Measuring Range (Std.):
• 0-10 ppm through 0-1,000 ppm without dilution
• 0-10,000 ppm with dilution
• Repeatability +/- 1% of Full Scale
• Drift Compensated, self-calibrated NDIR (+/- 2% non-accumulative)
• Response Time T90: From 9 minutes, depending on range
• Analog Outputs: 4-20 mA (2 each)
• Relay Outputs:
• 2 TOC adjustable level alarms
• 1 master fault alarm
• Computer/Display:
• Microsoft Windows CE Touch Screen Computer:
• Color VGA Display, Solid-State Data Storage, Paperless Chart
• Recorder, PCMCIA Slot, Network-Ready, RS-485 Modbus
• - OR -
• Microprocessor Based System
• Power Supply: 110/220 VAC 10 Amp service recommended
• Enclosure: Powder Coated Steel
• Dimensions (HxWxD):
• 50.8 x 50.8 x 38.1 (cm)
• 20 x 20 x 15 (in.)
• Weight:
• 34 Kg.
• 75 Lbs.