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2 – General Information
19
Description
Both the HP 66332A Dynamic Measurement DC Source and the HP 6631B/6632B/6633B/6634B
System DC Power Supply combine two instruments in one unit. It includes a dc source, which
produces dc output with programmable voltage and current amplitude, and a highly accurate
voltage and current meter, with the capability to measure very low-level currents. Additionally,
the HP 66332A Dynamic Measurement DC Source has the ability to measure and characterize
output voltage and current of pulse or ac waveforms.
Capabilities
♦ Output Voltage and Current control with 12-bit programming resolution
♦ Extensive measurement capability:
dc voltage and current.
rms and peak voltage and current (HP 66332A only).
16-bit measurement resolution (low range accurate down to 2 microamperes).
Triggered acquisition of digitized current and voltage waveforms (HP 66332A
only).
♦ Front panel control with 14-character vacuum fluorescent display, keypad, and rotary
control for voltage and current settings.
♦ Built-in HP-IB and RS-232 interface programming with SCPI command language.
♦ Non-volatile state storage and recall.
♦ Over-voltage, over-current, over-temperature, and RI/DFI protection features.
♦ Extensive selftest, status reporting, and software calibration.
Front Panel Controls
The front panel has both rotary (RPG) and keypad controls for setting the output voltage and
current. The panel display provides digital readouts of a number of output measurements.
Annunciators display the operating status of the dc source. System keys let you perform system
functions such as setting the HP-IB address and recalling operating states. Front panel Function
keys access the dc source function menus. Front panel Entry keys let you select and enter
parameter values. Refer to chapter 5 for a complete description of the front panel controls.
Remote Programming
NOTE: When shipped, HP 6631B/6632B/6633B/6634B units are set to the
Compatibility programming language; HP 66332A units are set to the SCPI
programming language.
To change the programming language from Compatibility to SCPI, press the
front panel
Address key, use ô to scroll to the LANG command, press
to
select SCPI, then press
Enter. Refer to the Programming Guide supplied with
your dc source for further information about remote programming.
The dc source may be remotely programmed via the HP-IB bus and/or from an RS-232 serial
port. HP-IB programming is with SCPI commands (Standard Commands for Programmable
Instruments), which make the dc source programs compatible with those of other HP-IB
instruments. Compatibility commands are also included to make the dc source compatible with