\u4e0a\u6d77\u822a\u6b27neff\u91c7\u677f\u5361 neff\u673a\u7bb1(\u542b\u7535\u6e90) neff\u903b\u8f91\u677f\u5361
\nThe Neff Advantage<\/p>\n
Since 1956<\/p>\n
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.
\nSystem 470
\nSystem 620\/600
\nSystem 471
\nSystem 472
\nSystem 730
\nSystem 495
\nSystem 470
\nFunction Cards
\nDA23350
\nDA23535
\n6715450306
\nKAR-3-3205 KGF-N-3205\/Tr 36×6
\nTGS-RPTS-Tr-36×6-LH-K82-A-462-0
\n89026352
\n9002335012
\n470100
\n9002335012
\n90023535
\n470051
\nTGS-RPTS-TR-28X5-T5-RH-1050
\n\u2022 470010 32-Bit TTL Input
\n\u2022 470011 16-Bit Isolated Digital Input-AC\/DC Signals, 1000V isolation.
\n\u2022 470012 2-CH Freq. or Period Input
\n\u2022 470013 32-Bit TTL Input\/Output
\n\u2022 470014 ARINC-429 Controller
\n\u2022 470015 2-CH Widerange Freq. or Period Input – programmable modes.
\n\u2022 470030 32-Bit TTL Output
\n\u2022 470031 8-Point Form ‘C’ Relay Output – latching relays
\n\u2022 470050 16-CH Differential Multiplexer – 10 Hz filter per channel
\n\u2022 470051 16-CH Differential Mux w\/Open Source-w\/filter
\n\u2022 470052 16-CH Differential Mux w\/4-20mA Input- w\/filter
\n\u2022 470054 4-CH Bridge Conditioner\/Mux – w\/multiplexer, amp & filter
\n\u2022 470055 4-CH RTD Conditioner\/Mux-w\/multiplexer, amp & filter
\n\u2022 470056 16-CH Transformer-coupled Mux- 1000V CMV
\n\u2022 470059 16-CH Multiplexer, Direct Input- w\/o filter
\n\u2022 470070 2-CH 16-Bit DAC Output
\n\u2022 470071 16-CH 12-Bit DAC Output
\n\u2022 470081 16 Channel Isothermal Connector
\n\u2022 470085 Calibration Card
\nSystem 471
\nFunction Cards
\n________________________________________
\n\u2022 470010 32-Bit TTL Input
\n\u2022 470011 16-Bit Isolated Digital Input-AC\/DC Signals, 1000V isolation.
\n\u2022 470012 2-CH Frequency or Period Input
\n\u2022 470013 32-Bit TTL Input\/Output
\n\u2022 470014 ARINC-429 Controller
\n\u2022 470015 2-CH Widerange Frequency or Period Input -programmable
\n\u2022 470030 32-Bit TTL Output
\n\u2022 470031 8-Point Form ‘C’ Relay Output- latching relays
\n\u2022 470052 16-CH Differential Mux w\/4-20mA Input – w\/filter
\n\u2022 470058 4-CH Isolation Amplifier
\n\u2022 47036X Mode Cards For Iso-Amp
\n\u2022 470059 16-CH Multiplexer, Direct Input- w\/o filter
\n\u2022 470070 2-CH 16-Bit DAC Output
\n\u2022 470071 16-CH 12-Bit DAC Output
\nSystem 472
\nFunction Cards
\n________________________________________
\n\u2022 472010 32-Bit TTL Input
\n\u2022 472011 16-Bit Isolated Digital Input-AC\/DC Signals, 1000V isolation.
\n\u2022 472012 2-CH Frequency or Period Input
\n\u2022 472013 32-Bit TTL Input\/Output
\n\u2022 472015 2-CH Widerange Frequency or Period Input – programmable
\n\u2022 472030 32-Bit TTL Output
\n\u2022 472031 8-Point Form ‘C’ Relay Output – latching relays
\n\u2022 472052 16-CH Differential Mux w\/4-20mA Input – w\/filter
\n\u2022 472059 16-CH Multiplexer, Direct Input – w\/o filter
\n\u2022 472060 16-CH Programmable Gain Amp\/Filter
\n\u2022 472070 2-CH 16-Bit DAC Output
\n\u2022 472071 16-CH 12-Bit DAC Outpu
\n\u2022 472081 16 Channel Isothermal Connector
\nSystem 495
\nFunction Cards
\n________________________________________
\n\u2022 495200 Input\/Control Assembly with SCSI Interface (16 slots)
\n\u2022 495101 Expansion Input Assembly (16 Slots)
\n\u2022 495070 250 kHz Prog. Amp\/Filter with 16-bit ADC and 1 meg Ram
\n\u2022 495071 250 kHz Prog. Amp\/Filter with 16-bit ADC and 16 meg Ram
\n\u2022 495072 250 kHz Prog. Amp\/Filter with 16-bit ADC and 32 meg Ram
\n\u2022 495073 250 kHz Prog. Amp\/Filter with 16-bit ADC and 64 meg Ram
\n\u2022 495080 1 MHz Prog. Amp\/Filter with 14-bit ADC and 1 meg Ram
\n\u2022 495081 1 MHz Prog. Amp\/Filter with 14-bit ADC and 16 meg Ram
\n\u2022 495082 1 MHz Prog. Amp\/Filter with 14-bit ADC and 32 meg Ram
\n\u2022 495083 1 MHz Prog. Amp\/Filter with 14-bit ADC and 64 meg Ram
\n\u2022 495085 8 Input Trigger Module
\nSystem 620\/600
\nFunction Cards
\n________________________________________
\n\u2022 620650 – 4 Channel Preamp with 2-Pole Butterworth Filter
\n\u2022 620654 – 4 Channel Preamp with 6-Pole Butterworth Filter
\nSystem 730
\nFunction Cards
\n________________________________________
\n\u2022 2-Channel programmable gain amplifier card with transducer conditioning
\n\u2022 24 Bit Isolated TTL input card
\n\u2022 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.
\n\u2022 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.
\n\u2022 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.
\n\u2022 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.
\n\u2022 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.
\n\u2022 Programmable Gain Over the Full Dynamic Range
\nWith 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.
\n\u2022 Preamps Include Programmable Filter
\nTwo 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.
\n\u2022 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.
\n\u2022 Automatic Calibration
\nOn 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.
\n\u2022 The automatic calibration procedure results in static accuracy of (0.02%<\/p>\n","protected":false},"excerpt":{"rendered":"
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