Ectron 441A, Instructions Manual, Page: 9 / 74

other products, so the user who has existing hardware
in place can remove an amplifier-conditioner and plug
in the frequency-to-voltage converter and start using it
immediately.
ABOUT THIS MANUAL
The following sections are in this manual:
Specifications
This is a complete technical description of the
Model 441A and the performance that is guaranteed.
While the performance specifications are the best in fre-
quency-to-voltage conversion, they are conservative.
The user may find that a particular unit will perform
well beyond specification.
Operation
Here the user will find complete instructions to use the
Model 441A. Pictures of all the screens and an
operational-state diagram enhance the discussion. Also
discussed are the various enclosures available for the
Model 441A and other 352 and 400 Series units.
Applications
Because the Model 441A is designed as a universal fre-
quency-to-voltage converter, it would be impossible to
address every possible use for this product. Rather, this
section is written to help the user get the most from the
data resulting from using the Model 441A. Concerns
about cabling, shielding, common-mode voltage, etc. are
addressed.
Theory of operation
Because the Model 441A is an encapsulated unit, repair
in the field is strongly discouraged. Therefore, a detailed
circuit analysis is foregone in this manual. However,
theory at the block-diagram level as well as a discussion
of internal software is presented to further aid the user
in operating the frequency-to-voltage converter for best
performance.
Calibration
Step-by-step instructions are given to test the Model
441A against its specifications. A brief overview of each
test is given to give the technician further insight into
each test performed.
Drawings
Schematic diagrams of several enclosures are included
to aid the user in instrumentation configuration.
Warranty
The warranty for this product is on the inside of the
front cover.
Model 441A Description
1-3