Hitachi, Ltd. - ACS Publications - American Chemical Society

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From Hitachi— A new approach to chart recording Hitachi chart recorders for laboratory and research use

Uses Combined use with gas chromatographs The sensitivity is 0 . 1 % of full-scale and the pen speed is less than lsec. to travel full-scale even with the minimum input range of l m V .

Recording of chemical solution analysis The recording of chemical solution * analyses such as pH value and electric • conductivity determinations can be

Combined use with spectrophotometers The measuring of intensity values, such as f lame-spectroscopy, is very easy. The recorder responds quickly tochanges in luminous intensity with micro quantity samples.

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easily made by combining the desk recorder with the proper electrodes. The floating input circuit enables the recorder to operate with various types of_ electrodes. Measuring of temperature When combined with thermo-sensitive resistor, thermistor, thermocouple, etc., it is easy to measure the temperature. The effective width of recorder chart i s 2 5 0 m m .

Recording of precise mechanical measurement By combining with a strain-gauge, precise mechanical measurement can be achieved. The minimum input range is 1 mV full scale.

Determination of the temperature characteristics of electronic equipment On account of the high sensitivity of HITACHI Recorder, the temperature coefficient of electronic equipment due to slight change of temperature is easily determined.

The new type QPD73 2-channel recorder with each pen providing performance similar to that described above will soon be available. Details provided on request.

Upon request, Hitachi will inform you of. their nearest sales representative.

HITACHI H i t a c h i , L t d . Tokyo Japan

Circle No. 214 on Readers' Service Card 1 0 2 A

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ANALYTICAL CHEMISTRY