Informações do equipamento
|Keithley 240A Fonte de alimentação|
|Categoria:||Instrumentos de medição|
|Grupo:||Fonte de alimentação|
|Descrição:||High Voltage Supply|
GENERAL The Keithley Model 240A is a compact high voltage supply which provides accurate, stable outputs from 0 to 1200 volts dc. Accuracy is +1% of the dial setting for all outputs. Stability is +0.02% +2 millivolts the first hour or in subsequent 8-hour periods, after a 30-minute warm-up. Line regulation is +0.005% +2 millivolts for a 10% change in line voltage, and load regulation is +0-0057o +2 millivolts from no load to full load. FEATURES. a. Three Digit Resolution. Three in-line calibrated dials set the output voltage in 1-volt steps. A TRIM Control permits interpolation between steps with better than 5-millivolt resolution. Output can be selected positive or negative with respect to ground. b. Overload Protection. Repeated overloading or operation in an overloaded condition for long periods will not damage the Model 240A. Overload protection limits the output current to less than 13 milliamperes and, when the overload is removed, automatically returns the Supply to its set value. c. Solid-State Design. The circuit for the Model 240A takes advantage of the reliability and stability of a solid-state comparator amplifier, and the high voltage capability of a series regulator tube to provide a high performance circuit.
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|Keithley -- 240A -- Serviço e Manual do Usuário|
|Tipo manual:||Serviço e Manual do Usuário|
|Tamanho:||1.87 Mbytes (1961726 Bytes)|
|Data:||01 Maio 1978|
|Qualidade:||Documento Scaned, a leitura parcialmente mal, não parcialmente legível.|
|Upload de data:||22 Agosto 2018|
|Downloads:||183 desde 22 Agosto 2018|
1 Front Panel. ... ii 2 Front Panel Controls. ... 1 3 Rear Panel Terminals. ... 2 4 Output Impedance VS Frequency. ... 4 5 Overall Block Diagram. ... 6 6 Voltage Control Comparator. ... 7 7 Test Points, Current Limit Circuit. 10 8 Test Box for Noise Check. ... 11 9 Chassis, Top View. ... 12 10 Component Layout, PC-116. ... 13 11 Component Layout, PC-117 (Part 1). 14 12 Component Layout, PC-117 (Part 2). 15
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