Background The Bio-Rad FTIR was a state of the art spectrophotometer in 1991 both in computer performance and programming methods for user-accessible FTIR data manipulation. Today, it is still an outstanding research instrument and located in the physics building.. The FTS-40 is a research-grade instrument with a 60 Michelson interferometer and a Motorola 32-bit 68020-based workstation with a 68881 microprocessor. Operations are performed by Idris, a 32-bit Unix operating system. All Fourier transforms are performed in memory. The color monitor and real-time joy stick controlled roll and zoom provides easy and detailed viewing of spectra. It has a spectra range from 7,000 to 250 cm-1, and a resolution of 0.5 cm-1. The detector is a DTGS pyroelectric bolometer and the beam splitter is a cesium iodide. Data can be also be saved to a DOS format for use with other programs. Procedure (or what's not in the manual) 1. Before the instrument and computer are turned on make certain the plotter switch is in the on position. All component of FTIR system are plugged into a single outlet strip with an on/off switch. Use this switch to turn the system on and off. Follow step 12 to turn the system off. 2. A Bio-Rad logo will appear on the monitor. In about five minutes the computer will be operational. Follow step 6 carefully to avoid damage to the software. 3. Read the temperature of the circulating water by placing a white paper behind the read out on top of the cooling bath. The IR source will not operate unless the circulating water is around 20 C. If the water is warmer allow the system to cool down before attempting to take a spectra. There are fuses in the Neslab Model CFT-25 cooling bath, which will blow if the bath is turned off and then on within a few minutes.. The bath has a stability of within 1° C and is set at 19° C. Do not turn the bath on and off without allowing about 15 minutes between resetting. 4. During the boot up process the status of the system will be printed out as follows for FTS-40 Diagnostic Tests, Electronics Tests V 3.00:
11. The Sweet P printer seems to work easiest with a single pen placed into the number 5 carousel position. If the printer is not turned on during boot up it must be initialized before attempting to print spectra. The initialization routine is either under the Plot menu or Scan and Plot menu. The plot menus are as follow:
12. Remember plot means to make a hard copy and display means to show spectra on the monitor. Normal use will require a sample scan plus a display and subsequently a plot of the requisite range of the display. 13. To exit the Data Station software depress the STOP key until you have returned to the user % prompt. Then type sync plus the enter key and wait for 30 seconds. Turn off the power to all systems at the main outlet strip. General Information 1. Plotter pens from Koh-I-Noor (any good drafting supplies store) p/n KO-6401-.. F (where .. represents the color of the pen) 2. The memory needs three type A batteries. There is a box of about ten 5 1/4" floppies for the Bio-Rad software. The Motorola 68020 chip and it is not compatible with HP plotters! 3. Do not operate from root prompt, #. Use a Ctrl d and type IR1, IR2, IR3, which are not password protected. 4. The editor uses de plus the file name and esc + v to save and cntr d to quit the editor. 5. To determine the size of the hard drive. Seek root then cd /adm and type: cat winch_size; it reports: Winchester = V170 drive has 72 MByte 6. To reboot use SHIFT Ctrl + delete key, (Ctrl SHIFT F1 does not work for this software.). 7. To configure the printer go to root and type in lower case: `plotconfigr' and select SweetP and reboot, e. g. SHIFT Ctrl + delete key. 10. Turn on the printer first and then turn on the whole system. The Sweet P plotter is available from Bio-Rad p/n 69977650 for $1,209.90 or from the following the web site. Use F8 to reset the plotter. The plotinit command should rotate the pen holder or show some activity in the plotter. The plotter can be obtained as: SWEET-P S + P 6 A/B Emulation Modes for $50.00 from: Inky Dew ®, LLC 7297 University Avenue.La Mesa, CA 91941-5927 Voice: 619 465-9339 --- 800 Inky-Dew --- FAX: 619 465-9371 E-Mail: inkydew@inkydew.com 11. The following are the CURRENT.PV default setting obtained by depressing key U1:
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