The Series 600 is NEFF's top-of-the-line data acquisition
system providing the utmost in performance, accuracy and convenience.
Featuring leading-edge technology and innovative design, Series
600 brings extensive automation and complete programmability to
the testing laboratory.
The key to Series 600's high performance is the
effective combination of fully programmable preamp/filters, programmable
post amplifier, sophisticated microprocessor-controlled calibration
circuits and the amplifier-per-channel data acquisition technique
that realizes the lowest noise level and highest common mode rejection
obtainable in a data acquisition system.
Programmable Gain Over the Full Dynamic Range
With programmable gain, test setup time is greatly reduced as
is the bother and confusion of manual switch settings. In Series
600 the range of each channel is programmable from +/-5mV full scale
to +/-10.24V full scale in 12 binary steps.
Preamps Include Programmable Filter
Two types of input preamps are available in Series 600 to allow
both static and dynamic measurements. Both have programmable filter
cutoff frequencies of 1Hz, 10Hz, 100Hz and 1kHz. Low-level differential
preamps (620650 and 620654) have 2-pole and 6-pole Butterworth filters,
The sample and hold preamp (620654) permits simultaneous
sampling of multiple low-level input channels and is used where
minimum channel-to-channel skew is required. both preamps have fully
guarded inputs and operate from grounded or floating signal sources.
On command the internal microprocessor takes over control of
the Series 600 and begins a sequence of steps to derive and store
calibration factors for each channel. The calibration data is stored
in on-board memories and during run mode are summed with the post
amplifier output voltage to obtain fully calibrated signals for
conversion by the ADC.
The automatic calibration procedure results in static
accuracy of (0.02% full scale +2 uV) including the effects of gain
error, offset, non-linearity and crosstalk for 30 days.