HP 203A - Instrument Identification

Моде! 203А
Section І
Paragraphs 1-1 to 1-11
SECTION 1
GENERAL INFORMATION
1-1. DESCRIPTION.
1-2. The Hewlett-Packard Моде! 203A Variable Phase
Function Generator is a low frequency function gen-
erator which provides two sine wave and two square
wave test signals at frequencies from 0.005 cps to
60 kc. (Refer to paragraph 1-5, Options Available. }
1-3. The four test signals are provided at the front
panel OUTPUT connectors at an open circuit signal
level of 30 volts peak-to-peak. The sine wave and
square wave test signals provided at the REFERENCE
PHASE OUTPUT connectors are fixed in phase and
provide a reference phase for the test signals at the
VARIABLE PHASE OUTPUT connectors. The vari-
able phase, test Signals are continuously variable from
07 to 360 lag with respect to the phase of the refer-
ence test signals, The amplitude of the four output
Signals can be varied with individual continuously
variable 40 db attenuators (AMPLITUDE controls. }
1-4, The output terminals are floating with respect
to ground and can be used to supply an output voltage
with the common terminal grounded or can be floated
up to 500 volts de above chassis ground. The output
impedance for all four test signal outputs is 600 ohms.
1-5. OPTIONS AVAILABLE.
1-6, Options 01 and 02 are available to provide two
additional frequency ranges to the Model 203A. Option
01 includes one additional Decade Module Board
Assembly which extends the lower limit of the fre-
quency range from 0, 005 cps to 0. 0005 cps. Option
02 includes two additional Decade Module Board Аз-
semblies whichextendthe lowerlimitof the frequency
range from 0.005 cps to 0. 00005 cps. These two
01760-4
options can also be installed as a field modification
(see Section VI for stock number of Decade Module
Board Assemblies). |
1-7. APPLICATIONS.
1-8. The Model 203A can be used for phase shift
measurements, vibration studies, servo applications,
medical research, distortion measurements, geo-
physical problems, subsonic and audio testing.
1-9. INSTRUMENT IDENTIFICATION.
1-10. Hewlett-Packard uses a two-sectionnine char-
acter (0000400000) or eight character (000-00000 or
000A00000) serial number. The first three or four
digits (serial prefix) identify a series of instrument;
the last five digits identify a particular instrument in
that series. A letter placed between the two sections
identifies the country where the instrument was man- /
ufactured. The serial number appears on a plate
located on the rear panel. All correspondence with
Hewlett-Packard Sales/Service Offices with regard
to an instrument should refer to the complete serial
number.
1-11, Н the serial prefix does not agree with the
serial prefix onthe title page of this manual, a "Manual
Changes" sheet supplied will describe changes which
will adapt this manual to an instrument with a differ-
ent serial prefix. Technical corrections (if any) to
this manual, due to known errors in print, are called
Errata and are shown on the change sheet. For in-
formation on manual coverage of any hp instrument,
contact the nearest hp Sales/Service Office (addresses
are listed at the rear of this manual),
1-1