Informations de l’équipement

EICO Electronic Instrument Co. Inc. 240 Multimètre analogique
Fabricant:
EICO Electronic Instrument Co. Inc.
Modèle: 240
Date:
Catégorie: Mètres
Groupe: Multimètre analogique
Description: Solid State FET TVM
Informations:

Designed for on the bench, and in the field use, the Model 240 Solid-State FET TVM reflects the most up-to-date use of semiconductor circuitry. While eminently suited for servicing vacuum- tube equipment, this modern TVM is especially applicable to semiconductor circuit testing. The low 1-volt d, c. full scale enables you to accurately read voltages as low as . 02 volt d. c. while giving good indications down to , 01 volt. Direct readings may be made to 1000 volts d. c., and with the addition of an HVP Probe {not supplied), readings can be extended to 30,000 volts d.c. The 1-volt full scale is a necessity in most semiconductor circuits, where the difference of a few millivolts -- easily read on the model 240 -- may indicate if a transistor circuit is operating properly. At the Other end of the d.c. spectrum, the addition of the HVP Probe enables accurate setting of the EHT (25,000 volts) required for best operation of a color cathode-ray tube. The seven a.c. ranges cover the complete gamut of alternating voltage measurements from 1-volt r. m. s. (full scale) to 1000-volts r. m. s. full scale. The meter scales are calibrated in both r. m.s. and peak-to-peak to enable accurate conversions. Covering the frequency range from 25Hz to over 2 MHz, you can perform most required a. c. measurements with the a.c. portion of the 240, Seven ohmmeter ranges are available to read up to 1000 megohms. A low voltage is used in the ohmmeter section to avoid accidental damage to semiconductors in the equipment under test. However, this voltage is high enough for use in testing both diodes and transistors. Adding to the versatility of the 240 is the use of the EICO-exclusive Uniprobe. Here, only one Probe with a fingertip control is used for all functions. Further refinements include the use of 1% tolerance resistors to insure maximum circuit accuracy, a meter scale with a zero-center for FM detector alignment, one zero adjustment for all functions, and a transformer-powered supply using a silicon rectifier and zener regulation particularly suitable for bench operation. Internal batteries can be switched in to make the model 240 completely independent of the power line. A modern FET-input semiconductor, differential amplifier, tight voltage regulation, and close-tolerance resistors assure stability and accuracy on all ranges. No warm up is required, the circuit does not ’’age", and the FET input circuit is completely protected by fast-acting semiconductor circuitry. Besides its impressive electrical specifications, the Model 240 is extremely well-constructed and features the "professional look” that has been acclaimed by servicemen and industry.

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Type manuel: Service et Manuel de l'utilisateur Eico-7729-Manual-Page-1-Picture
Pages: 15
Taille: 4.07 Mbytes (4265470 Bytes)
Langue: Anglais
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Type manuel: Service et Manuel de l'utilisateur Eico-7755-Manual-Page-1-Picture
Pages: 16
Taille: 1.22 Mbytes (1275612 Bytes)
Langue: Anglais
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Numéro d’identification:
Date: 1969
Qualité: Document scanné, tous les lisible.
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MD5: 12153ed7a78352de220b8aee945813d1
Téléchargements: 132 depuis 19 février 2016
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