MODEL 242 REGULATED HIGH VOLTAGE SUPPLY INSTRUCTION MANUAL
■The Keithley Model 242 Regulated High Voltage Supply provides accurate, stable outputs between 300 and 3500 volts dc. Accuracy is ±0.1% for all loads up to 25 milliamperes. Stability is ±0.01% for six months after a 30-minute warm-up. Line regulation is within ±0.005% for a 10% change in line voltage, and load regulation is within ±0.005% from zero to full load.
●FEATURES.
■Four in-line calibrated dials set the output voltage in 1-volt steps. A TRIM Control interpolates between steps with resolution better than 15 millivolts. Output can be selected positive or negative, or floated up to 1000 volts off chassis ground.
■Cumulative drift is prevented by a chopper circuit with a temperature-compensated zener diode reference, a photo-modulator comparator and wirewound sampling resistors.
■The Model 242 uses heavy duty thermionic rectifiers, a maintenance-free photo-mod- ulator and epoxy encapsulated power transformers. All high voltage capacitors are of oil-filled, metal-cased construction with mylar dielectric.
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[ phototubes ][ photo-multiplier tubes ][ calibration tests ][ voltage gradient studies ][ insulation tests ][ leakage resistance measurements ] |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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1065 |
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1.4 MB |
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