International HeadquartersGOW-MAC Instrument Co. 277 Brodhead Road Bethlehem, PA 18017 U.S.A.Tel: (610) 954-9000 Fax: (610) 954-0599 E-mail: sales@gow-mac.com URL: www.gow-mac.com

European OfficeGOW-MAC Instrument Co., Ltd. Bay K 14a, Industrial Estate Shannon, Cty. Clare IrelandTel: +353-61-471632 Fax: +353-61-471042 E-mail: sales@gow-mac.ie

®

Printed in U.S.A.

6 Custom designed

6 Dual detector capability

6 Optional — Corrosion resistant flow systems

6 Supports 10 columns/7 automated valves in singleapplication

6 Softkey keypad with four line alphanumericdisplay

6 Contact sensitive HELP function

6 Six ramp oven temperature programming control

6 Run and clock time programming

6 Stop watch function

6 Run log records

6 Dual channel analog output (1 mV, 1 V, 10 V)

6 Two channels of single column baselinecompensation

6 Remote diagnostic communication capability

6 Built-in IEEE-488 and RS-232-C communicationinterfaces

6 Built-in diagnostics and comprehensive self-test

6 Four 24 V valve drivers

6 Two 24 V low power relays

6 Two 48 V contacts for external event control

6 Power failure memory protection

GOW-MAC Series 816 HighPerformance Gas Chromatograph

SB-816

A unique combination of technologies

The GOW-MAC Series 816 High Performance GasChromatograph combines the industry’s leading digitalGC platform with advanced detector technology. Theresult is a complete, high caliber gas chromatographcapable of the accuracy, reproducibility and sensitivitydemanded by today’s analytical chemists and theirunique applications. The Series 816 GC featuresperformance in all the area you expect: productivity,dependability, data management, ease of use, GLPcompliance and modular engineering for easy executionof upgrades and service.

Ready for your application — out of the box

The advantage offered by the Series 816 GC is that itcan be supplied as a fully customized GC platform withdetectors and unique flow systems. Whether it’s EPA,GPA, ASTM, or some other method, our chemists andengineers address every facet of your application, i.e.,sample preparation and management, sample injectionmethods, pneumatic controls, detectors, columns, dataoutput — everything. Every custom configured Series816 GC is supplied with full analysis documentation andguarantee of analysis. We assume total systemresponsibility, right out of the box.

Performance to meet the most challenging tasks

The Series 816 GC is a dual channel gas chromatographwith electronic pneumatic control (EPC) of all pneumaticfunctions allowing for faster system setup andequilibration. It has an easy to use alphanumerickeyboard with color coded softkeys and simple keysequences. All GC parameters can be digitally recorded.A run log records all system conditions including anydeviations from pre-selected set point values. The Series816 GC, when used with a PC, can be equipped for offsite diagnosis of system problems should they occur. Allpneumatics, inlets and detectors are modular for simplermaintenance. The Series 816 GC can also be housed ina process enclosure for protection from variousenvironmental elements specific to the customer’srequirements. For special applications involvingcorrosive materials, the Series 816 GC system can beconstructed with corrosion resistant materials.

Digital pressure and temperature control

In addition to EPC, the Series 816 is equipped with sensors to monitor andcompensate for temperature and barometric pressure, The result is a gaschromatograph with exceptional stability requiring less frequent calibration.

EPC provides precise digital control of all pneumatic functions directly from theinstrument’s keyboard. The advanced pneumatic design reduces the risk ofcontamination and leaks in the system. Carrier and detector gas flow are easierto implement and control for more efficient use of consumables. The Series 816GC also features a gas saver function to reduce gas flow between sample runs.

Rapid analysis is provided with higher oven temperature programming rates,including clock time programming that allows for automatic preparation of thesystem for the first analysis of the day. Operating temperatures are independentlycontrolled at six zones in addition to the column oven. Valves are thermally isolatedfrom the oven’s heating cycles.

Operating the instrument

The user interfaces with the Series 816 GC through a simplealphanumeric keyboard with easy to use color coded soft keys andbasic key sequences. The system programming cycles and instrumentstatus including oven temperature ramp are clearly indicated withlight emitting diode (LED) displays. The four line liquid crystal display(LCD) communicates analysis conditions in uncomplicated language.The simple tough of a soft key brings the user into immediate controlof the GC — real time chromatograms, editing features, methoddevelopment and setup, etc. A key marked INFO provides helpfulanswers if needed. Automatic valve control, sequence control, pre-run events and post run programming are all accomplished from thekeyboard.

Versatile sample injection choices

GOW-MAC offers users several injection modes to meet their needsfor accuracy, reproducibility and efficiency.

Split/Splitless injection

Split/splitless injection modes with increased sensitivity through larger volumeinjections are achieved with the advanced pneumatics offered by the Series 816 GC. Thesplit/splitless capillary inlet is designed so that the split mode is back pressure regulated forevery setting of split ratio, and the splitless mode is forward pressure regulated. The resultis minimal sample discrimination and degradation.

Packed column injection

Packed column injections with increased precision are achieved by utilizing the system’s electronic flow controlcapabilities. Accommodates metal or glass columns. Direct sample injection to wide bore (0.53 mm) fused silicacapillary columns can be either flow (720 mL/min.) or pressure controlled.

Total system integration and responsibility...one source, one guarantee!

Flexible valve design

Unique to the Series 816 GC is GOW-MAC engineering department’s ability toprovide virtually any flow configuration. Gas sampling and column switchingcapabilities are provided through a variety of gas sample valve configurations.Depending upon the intended method, the Series 816 GC can support up to tencolumns as well as up to seven automated valves for a single application. Optimumseparation and precise quantification is assured by selecting from 4, 6, 8 or 10-port valves. Each valve can be controlled directly or in sequence for different gasstreams. EPC allows programmable control of sample valves allowing injectionseither continuously or at programmed intervals. Column switching is supportedby the ability to change valve positions as a function of the chromatographic run.Valves are pneumatic actuated and can be temperature controlled, purged, orconstructed of corrosion resistant materials.

Direct liquid injections onto the head of the column are allowable with temperatureprogrammable cool on-column features.

Cooled injection system (CIS) minimized sample discrimination during deliveryto the column or to separate low boiling point components selectively.

Data handling capabilities

The automation and communications features of the Series816 GC can be interfaced by various data handling devices,each complementing specific customer requirements

Software

GOW-MAC offers a variety of interactive PCchromatography data software packages. Each differsin the degree of remote instrument control andrequested comprehensive data handling and reportingcapability.

Integrators

Essential data reporting and manipulation can be accomplished with the use ofmost commercially available computing integrators.

The Series 816 GC is equipped with an RS-232-C data interface port, two analogoutput channels (1 mV, 1 V, and 10 V), and one IEEE-488 parallel port for interfacingto modems, plotters and various other devices as standard. INET interface is optional.

GOW-MAC Detectors

The Series 816 GC can handle virtually any application: petrochemical,semiconductor, food, flavor, solvent or industrial chemical. GOW-MAChas manufactured hundreds of thousands of detectors since theinception of gas chromatography, including award winning andpatented detectors. The Series 816 GC accommodates single or dualdetector configurations. Each independently temperature controlleddetector can operate either individually, in series, or in parallel modes.

Thermal Conductivity Detector (TCD)

6 Universal, sensitive, linear, non-destructive

6 Four filament Wheatstone bridge circuitry, dualcolumn configuration

6 Internal volumes from 20 µl to 140 µl

6 Rhenium-tungsten, gold-sheathed tungsten andnickel filaments, each providing specificperformance characteristics such as corrosionresistance, oxidation resistance, catalytic reactionsand sensitivity for use under different applications

6 Available in stainless steel or Monel® (corrosiveresistant) block

6 450° C maximum operating temperature

Discharge Ionization Detector (DID)

6 Universal detector

6 U. S. Patent No. 4,975,648

6 Suitable for applications involving industrial,hydrocarbon and semiconductor gases

6 Corrosive and inert sample compatibility

6 Dynamic linear range of 1 ppb to ≤ 1% by volume

6 Standard deviations ≤ 1% at ppb levels

6 125° C maximum operating temperature

Flame Ionization Detector (FID)

6 Insensitive to air and water making it ideal for thedetection of pollutants, aqueous samples orbiological substances

6 Automatic flame ignition from the keyboard

6 Flame out protection

6 450° C maximum operating temperature

Nitrogen-Phosphorus Detector (NPD)

6 Selective for sulfur, phosphorus, nitrogen andarsenic containing compounds

6 Power for the ceramic bead is digitally set fromkeyboard and is auto-correcting

6 Average detection limit of 10 ppb

6 Linear range for nitrogen of > 104; phosphorus of103

Photoionization Detector (PID)

6 Selective for aromatic compounds, arsenic, sulfurand phosphorus

6 Krypton, xenon or hydrogen lamps available

6 Detection limit of 1 x 10-12 g (benzene)

Flame Photometric Detector (FPD)

6 Selective for sulfur and phosphorus compounds

6 Single or double flame

6 Average detection limit of 50 ppb

SB-816©All rights reserved. 1998-2003

GOW-MAC® is a registered trademark of GOW-MAC Instrument Co.

Asian OfficeGOW-MAC Instrument Co. - Taiwan

Taipei World Trade CenterRoom 7D14, No. 5, Hsin-Yi Rd., Sec. 5

Taipei Shien, Taiwan, R.O.C.Tel: (02) 2725-1245Fax: (02) 2725-1247

E-mail: gmtaiwan@ms34.hinet.net

European OfficeGOW-MAC Instrument Co., Ltd.

Bay K 14a, Industrial EstateShannon, Cty. Clare, Ireland

Tel: +353-61-471632Fax: +353-61-471042

E-mail: sales@gow-mac.ie

International HeadquartersGOW-MAC Instrument Co.

277 Brodhead RoadBethlehem, PA 18017 U.S.A.

Tel: (610) 954-9000Fax: (610) 954-0599

E-mail: sales@gow-mac.comURL: www.gow-mac.com

www.gow-mac.com