7055 and 7065, Solartron's new microprocessor controlled
digital voltmeters, offer superlative measurement
capability plus a choice of processing programs.
System flexibility too, the interface options being
carefully chosen to cater for the majority of existing
or projected instrument interconnection systems.
7055 and 7065 carry out the same functions, but whereas
7065 has a maximum scale length of 6 x 9s (actually 1399999),
that of 7055 is limited to 5 x 9s. To simplify the
use of this Manual the description will be that for
the 7065 (6 x 9s); 7055 (5 x 9s) will be mentioned only
in instances where it is not identical.
As basic voltmeters both measure:
dc voltage: the result being the average value of the
input during a selected period, ac voltage: the
instrument senses the mean value of the ac content
of the input and displays the rms equivalent assuming
a sine wave, resistance: the result being the average
value of the unknown during a selected period.
Ranges can be selected individually or automatically,
there is a choice of scale length and digital filtering
can be applied. Readings can be taken singly or a succession
of readings may be made.
More powerful versions of these two voltmeters, in
addition to measuring the unknown inputs, process
those measurements to give other useful results.
Typical processes are: maximum or minimum of a string
of measurements, comparison with preset limits.
Whether the instrument supplied is the basic voltmeter
or is the processing version, both carry the identical
front panel controls and captions which apply to the
full processing voltmeter. This permits a user to
change a simple voltmeter into the processing version
by adding an internal module.
Finally, both the basic instrument and the processing
version can be fitted with a system interface. This
enables the voltmeter to be controlled by coded electrical
commands, and to output data which are the results of
simple measurements or of processed measurements.