Clark Hess Communication Research Corp 5000 Calibrator
Fabrikant:
Model:
5000
Datum:
Categorie:
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Omschrijving:
Phase Standard

Informatie

GENERAL DESCRIPTION The Model 5000 Phase Standard is a precision calibration instrument which produces two digitally synthesized low distortion sine waves over a frequency range of 1Hz to 100kHz and with Independently selectable amplitudes from lOOmV to 100V. The phase angle between the two sinewaves is selectable over a range extending between -999.999° and 999.999° with a resolution of im°. A fixed CFFSET, with the same range as the PHASE is also selectable. Function selection is made via front panel key switches and is displayed on a vacuum fluorescent display having 32, large (0.45")* bright dot matrix characters. The current values of PHASE, FREQUENCY, REFERENCE AMPLITUDE and VARIABLE AMPLITUDE are displayed at all times in the normal operation mode. STANDBY and OPERATE modes, which allow the output sinewaves to be reduced to zero and then restored to their previous values, are also selectable via key switches. A special key switch matrix simplifies data entry by allowing the operator to increment any digit of the current values of PHASE, FREQUENCY, REFERENCE AMPLITUDE or VARIABLE AMPLITUDE with a single key stroke. A RESET key switch allows the operator to quickly restore the initial settings of the standard. The Model 5000 has as a standard feature the IEEE-488 Interface which is accessible from the rear panel. Any function which can be entered manually can be programmed and sent to the Phase Standard over the IEEE bus. A REMOTE lamp on the front panel indicates when the standard is being controlled by the IEEE bus. When this lamp is illuminated data entry via the front panel is impossible; however, a LOCAL key switch is provided which allows the operator to regain local control. The Phase Standard is designed to operate with line voltages of 100V, 120V, 220V and 240V at frequencies of 50Hz or 60Hz, A switch in the line cord receptacle on the the rear panel permits the voltage selection. This receptacle also contains a line Filter which restricts the passage of high frequency signals both from the Standard to the line and from the line to the Standard. The Phase Standard is contained in a 19" wide, 7” high and 17" deep (including rack handles) and may be used on the bench or mounted in a standard relay rack.

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2017 04 16
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