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The Neff Advantage
Since 1956
Located in Monrovia, California not far from Pasadena, NEFF Instruments
has been a leading manufacturer of high performance data acquisition equipment
since its founding in the mid 1950s by Glyn Neff.
System 470
System 620/600
System 471
System 472
System 730
System 495
System 470
Function Cards
DA23350
DA23535
KAR-3-3205 KGF-N-3205/Tr 36x6
TGS-RPTS-Tr-36x6-LH-K82-A-462-0
470100
470051
TGS-RPTS-TR-28X5-T5-RH-1050
-Bit
TTL Input
-Bit
Isolated Digital Input-AC/DC Signals, 1000V isolation.
-CH
Freq. or Period Input
-Bit
TTL Input/Output
470014
ARINC-429 Controller
-CH
Widerange Freq. or Period Input - programmable modes.
-Bit
TTL Output
-Point
Form 'C' Relay Output - latching relays
-CH
Differential Multiplexer - 10 Hz filter per channel
-CH
Differential Mux w/Open Source-w/filter
-CH
Differential Mux w/4-20mA Input- w/filter
-CH
Bridge Conditioner/Mux - w/multiplexer, amp & filter
-CH
RTD Conditioner/Mux-w/multiplexer, amp & filter
-CH
Transformer-coupled Mux- 1000V CMV
-CH
Multiplexer, Direct Input- w/o filter
-CH
16-Bit DAC Output
-CH
12-Bit DAC Output
Channel Isothermal Connector
470085
Calibration Card
System 471
Function Cards
-Bit
TTL Input
-Bit
Isolated Digital Input-AC/DC Signals, 1000V isolation.
-CH
Frequency or Period Input
-Bit
TTL Input/Output
470014
ARINC-429 Controller
-CH
Widerange Frequency or Period Input -programmable
-Bit
TTL Output
-Point
Form 'C' Relay Output- latching relays
-CH
Differential Mux w/4-20mA Input - w/filter
-CH
Isolation Amplifier
47036X Mode
Cards For Iso-Amp
-CH
Multiplexer, Direct Input- w/o filter
-CH
16-Bit DAC Output
-CH
12-Bit DAC Output
System 472
Function Cards
-Bit
TTL Input
-Bit
Isolated Digital Input-AC/DC Signals, 1000V isolation.
-CH
Frequency or Period Input
-Bit
TTL Input/Output
-CH
Widerange Frequency or Period Input - programmable
-Bit
TTL Output
-Point
Form 'C' Relay Output - latching relays
-CH
Differential Mux w/4-20mA Input - w/filter
-CH
Multiplexer, Direct Input - w/o filter
-CH
Programmable Gain Amp/Filter
-CH
16-Bit DAC Output
-CH
12-Bit DAC Outpu
Channel Isothermal Connector
System 495
Function Cards
495200 Input/Control Assembly
with SCSI Interface (16 slots)
495101 Expansion
Input Assembly (16 Slots)
kHz Prog.
Amp/Filter with 16-bit ADC and 1 meg Ram
kHz Prog.
Amp/Filter with 16-bit ADC and 16 meg Ram
kHz Prog.
Amp/Filter with 16-bit ADC and 32 meg Ram
kHz Prog.
Amp/Filter with 16-bit ADC and 64 meg Ram
MHz Prog.
Amp/Filter with 14-bit ADC and 1 meg Ram
MHz Prog.
Amp/Filter with 14-bit ADC and 16 meg Ram
MHz Prog.
Amp/Filter with 14-bit ADC and 32 meg Ram
MHz Prog.
Amp/Filter with 14-bit ADC and 64 meg Ram
Input
Trigger Module
System 620/600
Function Cards
620650 - 4
Channel Preamp with 2-Pole Butterworth Filter
620654 - 4
Channel Preamp with 6-Pole Butterworth Filter
System 730
Function Cards
2-Channel programmable gain amplifier
card with transducer conditioning
24 Bit Isolated TTL input card
· The NEFF System 470 (S470) DAS is a complete,
low cost moderate-speed DAS for use in computer-based applications. The S470 is
designed primarily for computer automated data acquisition in test facilities,
laboratories and industrial plants or wherever a moderate-speed DAS is
required.
· The S470 is designed to accept analog inputs
ranging from 5mV to 10.24V full scale in 12 programmable steps. Signal
conditioning for sensors such as strain gages, RTDs, potentiometers and
thermocouples is supplied by standard S470 function cards thus eliminating the
need for external sources. Other function cards support digital I/O, frequency
measurement and analog output.
· S470 consists of a 7-inch high, 19-inch wide
enclosure with power supply, backplane wiring, I/O Control Logic printed
circuit card, Analog Subassembly printed circuit card and 16 I/O card slots
that accept any combination of S470 function cards. A Control/Display panel is
optional and an expansion assembly is available to extend function card
capacity to 32. The maximum number of channels or data points to be serviced
depends on the type of function cards used. Thirty-two 16-channel Multiplexer
cards, for example, provide 512 channels of analog input while a full
complement of 32-bit TTL input cards accommodate 1024 single data points.
· 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, respectively.
· 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.
· Automatic Calibration
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%
