Boonton Electronic 93AD Digitale multimeter
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Model:
93AD
Datum:
1979
Categorie:
Groep:
Omschrijving:
True RMS Voltmeter
Informatie
The Model 93AD furnishes true rms voltage measurements of
sine, complex, pulse and random waveforms over a voltage
range of 300 pV to 300 V, and a frequency range of 1 0 Hz to
20 MHz. With the dBm options, the overall range is -68 to
4^0 dBm, The exact dBm range will depend upon the reference
impedance chosen.
The digital display uses light-emitting diodes for clear,
unambiguous readings* A small edge meter, calibrated in dB
over a 12 dB range, is mounted beside the digital display.
While this is useful for comparative dB readings, its major
usefulness is for peaking or nulling indications, an
application for which a digital display is usually found
confusing» In addition to the 3—digits—plus—1 voltage
readout, the LED display offers decimal point, over- and
under-range indicators, mode (volts or dBm) and polarity
(for dBm option instruments).
The Model 93AD is designed for easy integration into
external test systems; full BCD output (8,4,2, 1), using
standard positive logic, TTL compatible, is supplied as
standard. In addition to the BCD outputs, an analog output
is furnished, supplying up to 10 volts dc for full-scale
reading on each range with a linearity of ±0.3% of fs and a
source resistance of = 5 Q. Command inputs are provided for
remote control of all essential functions.
Both bandwidth and response time of the instrument are
selectable, either panel switched or remotely, to suit the
measurement requirements. The input impedance of the 93AD as
supplied is 2 MQ in parallel with 25 pF or less; a
high-impedance Probe (Modei 93-1A) is available as an
optional accessory. This Probe has an input impedance of 10
MQ in parallel with 11 .5 pF or less* The signal-input BNC
connector, normally mounted on the front panel, may be
mounted on the rear panel as an option (Model 93AD-08) to
fit'a particular installation. Autoranging (Modei 93AD-0I)
is another optional feature.
The Model 93AD is of completely solid-state design,
including the chopper; this contributes to the reliability,
stability, light weight and compact size of the instrument.
The chopper operates at 94 Hz, reducing the susceptibility
to line-frequency-re I a ted fields and enhancing the
low-noise quality of this design.
The mechanical design of the 93AD is simple and rugged, with
easy access provided to all components. The extensive use of
Plug-In printed circuit board construction makes maintenance
and adjustment relatively simple procedures. The sturdy bail
provided serves as a comfortable carrying handle for the
instrument, and as an adjustable mounting foot to tilt the
case for easy viewing when it is at bench level.
Handleidingen type:
Gebruikershandleiding
Pagina’s:
16
Grootte:
484.80 Kbytes (496437 Bytes)
Taal:
english
Herziening:
Handleidingen-ID:
Datum:
1979 01 01
Kwaliteit:
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