Informations sur l'appareil:

Hickok Electrical Instrument Company 244 Compteur de fréquence
Fabricant:
Hickok Electrical Instrument Company
Modèle: 244
Date:
Catégorie: Mètres
Groupe: Compteur de fréquence
Description: Mobil/Comm DC Power Supply
Information:
                                    DESCRIPTION

The Hickok Model 244 Mobil/Comm Power Supply is a compact,
state-of-the-art, precision instrument, designed to supply
filtered, regulated, direct current, applicable to
servicing automotive-type electronic equipment, specifically
personal communications transceivers such as Citizen Band
units.

Model 244 incorporates features of particular value
to the communication equipment technician. The voltage
output is variable from 10 to 14.5 Vdc with a calibrated
meter designation for 13.8 Vdc. The current output
is capable of supplying 0 to 3 amperes. Both voltage
and current are metered. "Foldback" current limiting
makes the Model 244 absolutely burn-out proof. Even a
dead short across any output terminals will cause no
damage. There are no circuit breakers to reset, or fuses
to replace. After the short circuit is removed, the
 unit will return to normal operation. During shorted
or high current conditions, the "foldback" current limit
circuit reduces available current to approximately 1.4
amperes and the OVERLOAD indicator lamp lights. Three 5-way
output binding-post terminals are provided on the
front panel, +, -, and ground. Depending on the application,
the unit may be operated up to 500 volts off ground potential.

Les guides suivants sont disponibles pour l'équipement ci-dessus:

Hickok Electrical Instrument Company -- 244 -- Service et Manuel de l'utilisateur
Nom du fichier: Hickok-3865-Manual-Page-1-Picture
Type de document: Service et Manuel de l'utilisateur
Nombre de pages: 22
Taille du fichier: 15.77 Mbytes (16534186 Bytes)
langue: anglaise
Révision:
Document ID/Numéro: 2490-678
Date:
qualité: Document scanné, tous les lisible.
Chargé sur:
MD5: e50a774ec47e649c0434b5499b706fec
ed2kID: 36083a587311d1b40ebf68bd4c762d5a
Téléchargements: 126 depuis 07 January 2013
Information:
TABLE OF CONTENTS
SECTION	Page

I	GENERAL INFORMATION ................1

Description..........................1

Specifications..........................2

Controls and Indicators Description..........3

II	OPERATION............................5

General ............................5

Preliminary Operation....................5

Operation............................5

Using Model 244 to Power Automotive . .	6 Radio Equipment

Using Model 244 with Output Referenced . .	6 to Ground

III	APPLICATIONS..........................7

Testing Citizen Band Transceivers............7

IV	THEORY OF OPERATION..................8

General..............................8

Regulator............................8

Overload Condition......................8

Overload Protection ....................8

Metering............................9

V	MAINTENANCE ........................10

General..............................10

VI	CALIBRATION..........................11

General ............................11

Equipment Required..................11

Preliminary..........................11

Maximum Output Voltage Adjustment ...	12

Panel Meter Voltage Calibration..........12

Panel Meter Current Calibration..........12

Foldback Current-Limiting Calibration ...	13

VII	PARTS LIST............................14
Hickok-3865-Manual-Page-1-Picture
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