A 1 MV Digital Data Acquisition System priced at $3,540*? Esterline Angus must be kidding. Not at all! We've got the most compact, feature-packed 5 to 20 channel Digital Data Acquisition System available today. Our Model D-2020 has low level signal conditioning available for each channel. You can switch select 1, 10 or 100 MVDC full scale with 200% over-range. These low level inputs eliminate external signal amplification which is required to adapt to high level inputs of more expensive competitive units. We've also got a real time, solid state clock (nixie tube display); a 20 column printer with floating
decimal; adjustable frame scan rates, and 100 megohm input impedance. The entire Esterline Angus Digital Data Acquisition system is contained in an attractive housing that's 17Ve" wide, 7" high, 161/e" deep. For more information, call or write for our colorful catalog. *Price of basic five-channel system which is wired to accept 20 channels of data. You can add an additional 15 channels with plug-in boards. They are available at $250 per five-channel board.
ESTERLINE ANGUS Division of Esterline Corporation Box 24000 · Indianapolis, Ind. 46224 Telephone 317/244-7611
Circle No. 33 on Readers' Service Card
®
GAS-CHROM Q DOUBLE-CHECKED FOR CONTROLLED QUALITY Quality control makes G A S - C H R O M ® Q the finest silane-treated support you can use. For better GC separations, use GAS-CHROM Q -a top quality silane-treated diatomaceous earth sup port. To make sure that it meets our high standards, we double check each batch with two standard analyses - one of steroids and one of pesticides. The chromatogram at left shows a typical steroid separation obtained during a quality control test. GAS-CHROM Q is the support recommended for pesticides, steroids, alkaloids, and other difficult-toanalyze compounds. Write for more information.
Applied Science Laboratories, Inc. P.O. Box 440/State College, Pennsylvania 16801 Tnlephone: 814-238-2406 West
Cnrm
Oiticij-
1113b
In9lew01.ul Λ ν ι : . / l i ' . y l i . w u o c l ,
Calif.
90304
Circle No. 5 on Readers' Service Card
ANALYTICAL CHEMISTRY, VOL. 42, NO. 9, AUGUST 1970
·
43 A
