1. Manuals
  2. Brands
  3. Gow-Mac Manuals
  4. Laboratory Equipment
  5. 580 series
  6. Operating manual

Gow-Mac 580 Series Operating Manual

Tcd isothermal gas chromatograph
Hide thumbs Also See for 580 Series:
Table of Contents

Advertisement

Quick Links

Download this manual
Operating Manual
Series 580 TCD Isothermal
Gas Chromatograph
Series 580: 120 V, 50/60 Hz
Series 582: 230 V, 50/60 Hz
September 2017
Rev. 5
READ INSTRUCTIONS
BEFORE OPERATING
277 Brodhead Rd., Bethlehem, PA 18017-8600 U.S.A. Tel: (610) 954-9000

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 580 Series and is the answer not in the manual?

Questions and answers

Related Manuals for Gow-Mac 580 Series

Summary of Contents for Gow-Mac 580 Series

  • Page 1 Operating Manual Series 580 TCD Isothermal Gas Chromatograph Series 580: 120 V, 50/60 Hz Series 582: 230 V, 50/60 Hz September 2017 Rev. 5 READ INSTRUCTIONS BEFORE OPERATING 277 Brodhead Rd., Bethlehem, PA 18017-8600 U.S.A. Tel: (610) 954-9000...
  • Page 2 GOW-MAC Instrument Co.
  • Page 3 ® and/or programs described in this manual at any time and without notice. All information referred to and/or included in this report is current as of the original issue date of this manual. GOW-MAC ® Instrument Co. makes no warranty or representation with respect to the accuracy of the information or with respect to the suitability of the use of such information outside GOW-MAC Instrument Co., nor does GOW-MAC...
  • Page 4 Certain parts such as batteries, fuses, lamps, fi laments, columns, etc., are expendable in normal use, and their service life is unpredictable. Such items are not covered by this warranty. All requests for service or repair under this warranty must be received within the warranty period by GOW-MAC ®...
  • Page 5 IMPORTANT INFORMATION These instructions are written for personnel operating the GOW-MAC Series 580 TCD Gas ® Chromatograph. Read and understand the safety precautions in this manual to become familiar with the safe practices for operating this equipment. Dangers, Warnings, Cautions, and Notes Dangers, Warnings, Cautions, and Notes appear throughout this manual.
  • Page 6 GOW-MAC Instrument Co.

  • Page 7: Table Of Contents

    Contents Section 1 Specifi cations ..................13 Section 2 Safety ..................... 15 Section 3 Installation ..................... 17 Section 4 Operating Controls ................25 Section 5 Operation ....................29 Section 6 Valves ....................37 Section 7 Maintenance ..................43 Section 8 Options &...
  • Page 8 GOW-MAC Instrument Co.
  • Page 9 218 (Capillary) installed, make sure to read Section 8. Operate the Series 580 GC according to these instructions. Any questions concerning the safe and proper use of your instrument should be addressed to: GOW-MAC INSTRUMENT CO. 277 Brodhead Road, Bethlehem, PA 18017-8600...
  • Page 10 GOW-MAC Instrument Co.
  • Page 11 IMPORTANT! Your new Series 580 TCD Isothermal Gas Chromatograph contains one of the following detector/ fi lament confi gurations: _____ Single Carrier TCD _____ Dual Carrier TCD with _____ WX (rhenium-tungsten) _____ WXB (rhenium-tungsten, inverted header – dual carrier TCD only) _____ W2B (tungsten, inverted header –...
  • Page 12 This instrument was designed for DRY sample applications only! Care must be taken to make sure only moisture-free samples are introduced into the system. GOW-MAC Instrument Company is not responsible for damage to ® equipment caused by exposure to hydrolyzed samples. GOW-MAC Instrument Co.

  • Page 13: Specifi Cations

    Section 1 Specifi cations (dependent upon the number of options ordered) OVERALL: H 12 1/2” (317 mm) W 19 1/2” (495 mm) width varies due to housing used for options ordered D 18” (457 mm) Net Weight: 70 lbs. (31.75 kg) Shipping: 80 lbs.
  • Page 14 Line operated, solid state, integrated circuit regulated, constant current 55 Vdc (max.), 300 mA (max.) Ripple and noise less than 5 V x10 SIGNAL AMPLIFIER (OPTIONAL): amplifi es the detector signal by a factor of 10 for enhanced sensitivity. GOW-MAC Instrument Co.

  • Page 15: Safety

    Section 2 Safety This section is designed to bring special attention to specifi c areas or practices that may pose particular hazards to personnel and/or equipment safety only. For complete installation instructions, see Section 3. It is in the operator’s best interest to read this section to ensure the safe operation of the equipment. A.
  • Page 16 3. DO NOT allow fl ammable and/or toxic wastes to accumulate. 4. Keep combustibles away from gas cylinders and eliminate ignition sources. 5. DO NOT place papers, charts, samples, etc. on top of the GC. 6. Maintain adequate ventilation. 7. Dispose of wastes properly. GOW-MAC Instrument Co.

  • Page 17: Installation

    DAMAGE TO THE INSTRUMENT, MAKE SURE THAT THE AC ELECTRICAL OUTLET IS THE CORRECT VOLTAGE FOR YOUR INSTRUMENT BEFORE PLUGGING IT INTO THE OUTLET. 5. GOW-MAC Installation Kit (Part no. 59-400) or 1/8” o.d. copper tubing and Swagelok ® fi ttings.
  • Page 18 The ac power cord is terminated with a straight-blade 3-prong plug rated for 15 amp service that requires a matching receptacle. MAKE SURE ALL SWITCHES ON FRONT AND BACK OF THE CAUTION SERIES 580 GC ARE IN THE “OFF” POSITION BEFORE PLUGGING IN THE INSTRUMENT. GOW-MAC Instrument Co.
  • Page 19 F. Recorder Connection Supplied with your G.C. is a recorder cable. Both ends of the cable terminate in three spade terminals. Cable color code is as follows: Red lead, positive (+); black lead, negative (-), silver (shielded) lead, ground. 1. Connect one end of the recorder cable to the terminals located at the rear of the G.C. (Figure 3-1).
  • Page 20 Figure 3-2 Carrier Gas Connection 2. Either using the GOW-MAC Installation Kit (Part No. 59-400) or fi ttings and copper tubing of your own, connect a 1/8” o.d. piece of clean copper tubing* from the gas outlet located on the regulator of the carrier gas cylinder to the CARRIER GAS INLET on the back of the GC (Swagelok fi...
  • Page 21 15 to 20 minutes, there is a leak in the system. 10. The easiest way to locate leaks in the system is through use of a GOW-MAC Gas Leak Detector, Model 21-070. If a leak detector is not available, the use of a leak testing solution (soap solution) and checking for bubbles may be used.
  • Page 22 PORTS. K. Gas Flow Adjustments The GOW-MAC Digital Flowmeter for non-corrosive gases, part no. 180-567, is recommended to set the carrier gas fl ows. Attach fl exible tubing to Outlet “A” on the GC and adjust the fl ow rate with the metering valve on the front of the instrument.
  • Page 23 L. Setting Flows For A Gas Sample Valve and Series/By-pass Column Switching Valve for Analysis of CH , CO O, H /Air, N , CO If this instrument is equipped with a Series/By-pass Valve (installed on the “A” side) use the following instructions for setting the fl...
  • Page 24 GOW-MAC Instrument Co.

  • Page 25: Operating Controls

    Section 4 Operating Controls This section of the manual will introduce you to the controls of your Series 580 GC. A. Controls With the exception of the MAIN POWER SWITCH (located on the rear panel), all of the operating controls are located on the right front panel of the GC. The operator should become familiar with these controls and their functions BEFORE operating the instrument.
  • Page 26 (Recorder should be zeroed fi rst, with short input). 12. METERING VALVES: Adjusts the fl ow of detector the carrier gas to the detector. 13. INJECTION PORTS “A” & “B” 14. OVEN LID 15. EXIT PORTS “A” & “B” GOW-MAC Instrument Co.
  • Page 27 1. Digital Panel Display 9. Column Heater & Fan Switch 2. Selector Buttons 10. Attenuator 3. Column Temperature Control 11. Detector Current Control 4. Detector Temperature Control 12. Metering Valves 5. Injection Port Temp. Control 13. Injection Ports “A” & “B” 6.
  • Page 28 Your Series 580 GC has been supplied with one (1) 4’ x 1/8”, stainless steel column packed with 5% OV-101 on Chromosorb P AW-DMDCS, 80/100 mesh. 4.50 dia max Figure 4-2 Column “B” GOW-MAC Instrument Co.

  • Page 29: Operation

    Section 5 Operation A. General The chromatographer should be familiar with the techniques of chromatography, the function of all controls, the operation of the recorder, and the characteristics of the columns used prior to running samples. B. Operation 1. Gas Flow a.
  • Page 30 When maximum sensitivity is not required, the current should be reduced to 100 mA. Single Carrier TCD W, WX, W2, W2X, AuW, AuW2, Ni, Ni2 Filaments Chart 5-1 Cell Temperature °C 10-952 Cell with Wx7 Filaments Chart 5-2 Cell Temperature °C GOW-MAC Instrument Co.
  • Page 31 10-955 Cell with Wx7 Filaments Chart 5-3 Recommended Starting Current Cell Temperature °C Dual Carrier TCD Dual TCD WX or W2B Filaments Chart 5-4 Nitrogen Argon Maximum Cell Temperature (°C) Series 580 TCD Gas Chromatograph September 2017, Rev. 5...
  • Page 32 The Series 580 GC is suitable for use with almost any strip chart recorder of the potentiometric type (1 mV, 10 mV, or other. For best results and maximum sensitivity, the GOW-MAC Model 70-150A 1 mV Recorder is recommended. An adjustable chart drive is also recommended: 40, 20, 10, 4, 2, and 1 cm/min.
  • Page 33 As the zero trace begins to level off , the GC ATTENUATOR may be reduced. The ATTENUATOR may be set at “1” when the zero trace is free from most drift and noise. Drift may continue as long as the oven or detector temperatures continue to change. Refer to the recorder manual for correct chart speeds, warm-up times, etc.
  • Page 34 SAMPLE GAS BEFORE SHUTDOWN USING AN INERT GAS — INCLUDING THE SAMPLE INLET. THIS IS REQUIRED FOR SAMPLES WITH HIGH CONCENTRATIONS OF COMPOUNDS THAT FORM ACIDS (HF, HCl, HBr, ETC) OR REACT VIOLENTLY AND/OR CORROSIVELY WITH ATMOSPHERIC ELEMENTS. GOW-MAC Instrument Co.
  • Page 35 Daily Setup Check List It is good practice to check the following items at the beginning of each day or shift, and when starting up the instrument after a weekend shutdown. 1. Electrical _____ Additional instrumentation is connected properly. 2. Pneumatic _____ Gas cylinder pressure is suffi...
  • Page 36 GOW-MAC Instrument Co.

  • Page 37: Valves

    All valves must be treated with care. Foreign materials such as metal fi lings or abrasive particles can permanently damage the sliders of the valves. GOW-MAC installs stainless steel fi lter frits on the inlets of sampling valves to help protect against this type of damage.
  • Page 38 (CW) position, the carrier gas purges the sample from the loop and carries it through the column. The valve is then returned to the CCW position. NOTE The sample is released to atmosphere in either valve position. GOW-MAC Instrument Co.
  • Page 39 Care must be exercised to allow suffi cient time for the sample loop to be completely fi lled with the sample before injection. This is easily calculated from the carrier gas fl ow and size of the sample loop. The same holds true for time allowed for the sample to enter the column. E.
  • Page 40 MS5A, while the slower eluting component CO comes off the PP column. After the last component comes off the PP column the S/B-P Valve is switched to the series position and the H , CH and CO are eluted from the MS5A column. GOW-MAC Instrument Co.
  • Page 41 Instrument: Series 580 Detector: Column: See Note A Carrier Gas: Helium Carrier Flow: 40 cc/min. Temperature: Column 59 °C Detector 100 °C Bridge Current: 150 mA Attenuation: Noted Sample: Gas Mix Sample Size: 2 cc Note A: Column #1 – 7’ x 1/8” Porapak Q, 80/100 mesh Column #2 –...
  • Page 42 GOW-MAC Instrument Co.

  • Page 43: Maintenance

    A. The Detector and Elements 1. Hotwires Filaments available from GOW-MAC are made of gold-sheathed tungsten, tungsten, rhenium tungsten, nickel, and nickel alloy. Each has specifi c attributes which are exhibited under diff erent requirements of analysis such as corrosion resistance, oxidation resistance, catalytic reactions and sensitivity.
  • Page 44 WARNING The diaphragm in the fl ow controllers will dissolve requiring the entire fl ow controller to be replaced. Call GOW-MAC for instructions on how to clean your detector. GOW-MAC Instrument Co.
  • Page 45 Figure 7-1 Column Placement 3. Detector Removal BEFORE ATTEMPTING TO REMOVE THE DETECTOR OR CAUTION FILAMENTS, ALL POWER TO THE INSTRUMENT MUST BE TURNED ”OFF” BY REMOVING THE POWER CORD FROM THE OUTLET. INSULATION CONTAINS FIBERGLASS. USE OF FACE MASK & CAUTION GLOVES IS RECOMMENDED.
  • Page 46 fi laments. The new fi laments should be installed in the detector, the bushings tightened, and a leak check made BEFORE replacing the detector housing. Refer to the GENERAL SERVICE BULLETIN for further assistance. GOW-MAC Instrument Co.
  • Page 47 This column has been preconditioned. 2. Availability (Packed and coiled for installation) GOW-MAC supplies columns for all it’s GCs. Column materials include stainless steel or copper (1/4” or 1/8”) or glass (6 mm o.d. x 2 mm o.d.). Columns may also be ordered empty.
  • Page 48 The septums used in this instrument are standard 9 mm o.d. and may be obtained directly from GOW-MAC (Part No. 180-123). The INJECTION PORT NUT may be removed and the SEPTUM replaced. POWER TO THE GC MUST BE “OFF” and the instrument cool BEFORE removing the INJECTION PORT NUTS.
  • Page 49 NOTE: Be very careful when installing the column making sure not to have the column end too far in that it pushes out the front of the injection port. If this happens and the injection port nut is installed too tight, this will cause the carrier fl ow to be cut off . This could cause damage to the detector.
  • Page 50 The injection ports are heated by 60 W heaters mounted inside the injector block. The temperature control sensor is also located in the block. The injection port temperature is controlled in the same manner as the column oven. GOW-MAC Instrument Co.

  • Page 51: Options & Accessories

    Section 8 Options & Accessories The following are options and accessories that your Series 580 GC may (or may not) have been equipped with: A. 10x Signal Amplifi er (Option 407) The 10x Signal Amplifi er is a precision single, unifi ed circuit designed for the acquisition of data in applications where there are less than desired operating conditions or where there is a need for high sensitivity.
  • Page 52 It is important to practice rotating the collection tube GENTLY to obtain just enough pressure to make a good seal, but not too much to unseat the joint. GOW-MAC Instrument Co.
  • Page 53 5. The preparative GC fraction is now collected as it passes through the exit port. Effi cient collection is facilitated (diminished aerosol formation) by the large heat sink aff orded by the mass of the stainless steel adapter. Once the recorder indicates that the fraction is off the column, the collection tube is detached from the column adapter.
  • Page 54 GOW-MAC Instrument Co.

  • Page 55: Troubleshooting

    Check carrier gas pressure. pressure (15 psi min.). Attenuation set too high. Lower attenuation. *Taken from “Basic Gas Chromatography” by McNair and E. J. Bonelli (available from GOW-MAC, Part No. 145-101). Series 580 TCD Gas Chromatograph September 2017, Rev. 5...
  • Page 56 Instrument not properly Make sure instrument and grounded. recorder are connected to good earth ground. Recorder defective. Set GC Attenuator to 00. If drift continues, recorder is defective. See recorder manual. GOW-MAC Instrument Co.
  • Page 57 Symptom Cause Remedy Carrier gas leaking at Locate and correct leak. injector septum, column fi ttings, etc. Column packing bleeding. Condition column; Operate column at a lower temperature; Replace column or packing. Some packing materials cannot be operated at elevated temperatures without diffi...
  • Page 58 Carrier gas fl ow rate Reduce carrier gas fl ow rate. too high. Carrier gas leaking. Locate and correct leak. Bad ground connection. Make sure all instruments are connected to good earth ground. Electronic circuitry dirty. Consult GOW-MAC Engineering. GOW-MAC Instrument Co.
  • Page 59 Symptom Cause Remedy Excessive electrical Use line fi lter of suffi cient noise from power source. power or connect to “clean source”. Tailing peaks Injector temperature too Readjust injector temperature. high or too low. Septum contaminated. Replace septum. Column oven temperature Increase column oven too low.
  • Page 60 Column too short. Use correct column. Mobile phase has baked Replace or repack column. off of column support material. Incorrect column for Consult GOW-MAC for application. column advise. Carrier gas fl ow rate too Reduce carrier gas fl ow rate. high.
  • Page 61 Ensure proper preparation of sample prior to injection. Sample interaction with Use diff erent column. Consult mobile phase or column GOW-MAC for column advise. packing (chromatograms I, II). Contamination from glassware, Make sure all glassware, syringes, etc. (chromatograms syringes, etc., are clean.
  • Page 62 GOW-MAC Instrument Co.

  • Page 63: Section 10 Replacement Parts

    Section 10 Replacement Parts When ordering replacement parts for your Series 580 GC, please specify the serial number of the instrument. Description Part No. Heaters (115 V) Column oven heater 500 W 124-183 Detector oven heater 100 W 124-185 Injection port heater 60 W 124-152 Heaters (230 V) Column oven heater 500 W...
  • Page 64 10-580-25-1 TC cell, s.s. dual carrier w/ 1/8” fi ttings (10-801) *W2B 10-580-27-1 TC cell, s.s. dual carrier w/ 1/8” fi ttings (10-801) *WXB *NOTE: THESE FILAMENTS ARE NOT FIELD REPLACEABLE. DETECTOR MUST BE SENT TO GOW-MAC FOR REPAIR. GOW-MAC Instrument Co.

  • Page 65: Section 11 Drawings & Schematics

    Section 11 Drawings & Schematics Flow Diagram Wiring Schematic Series 580 TCD Gas Chromatograph September 2017, Rev. 5...
  • Page 66 GOW-MAC Instrument Co.
  • Page 67 Failed Safety Inspection. DO NOT proceed to Repair Dept. RMA No: __________________ ( ) On Back >>>> REP-005 Health-Safety Declaration Doc REV6 (0212).docx Rev. 6, 2/15/2012, gsj 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...
  • Page 68 GOW-MAC Instrument Co.

This manual is also suitable for:

582 series

Table of Contents