Dynamic Signal Analyzers

Features 24-bit ADC per analog input 4 analog inputs, ±10V on 640 (±60V max without damage) 5 analog inputs, ±40V on 650 (±60V max without damage) AC/DC coupling per channel IEPE current source per channel (20V compliance) Any analog input can be a tachometer input Pseudo-differential input Total harmonic distortion of -100 dB (typical) Channel-to-channel phase matching of <0.12 degrees at 1 kHz Spurious-free dynamic range of 108 dB (typical) USB2 and 10/100BaseT Ethernet versions Model 650 for rotating machinery analysis Model 640 for noise, vibration, and harshness testing 24-bit DAC analog output (640 only) Analog outputs: sine, swept sine, random, burst, arbitrary Analog Output Signal-to-Noise Ratio: 100 dB (typical) 8-bit digital IO port TEDS support Power input of 6 to 16 VDC Analysis rates are software programmable from 20 Hz to 40 kHz General Specifications Environment Operating Temperature 640u and 650u: -30° to 70° 640e and 650e : 0° to 50°C Humidity: o° to 95% RH, non-condensing Vibration: IEC 600068-2-64 Shock: IEC 600068-2-27 Emissions: EN61326, 89/366EEC Safety: EN61010 Ingress: IP40 Power Consumption 640e and 650e: 5.0W max 640u and 650u : 2.5W max Input Power Range: 6 to 16 VDC PC Communication 640e and 650e: 10/100BaseT Ethernet 640u and 650u : USB2.0 Dimensions: 142.24mm W x 180.34mm D x 38.1mm H (5.6"x7.1"x1.5") Weight: 675g (1.5Ibs) Warm-up: 30 minutes to rated specifications Analog Specifications Analog Measurements ADC Converter Resolution: 24bits ADC Converter Type: Delta-sigma Sample Rates: Up to 105,468 sample per second (Software dependent) Sample Rates Accuracy: ±50ppm Channels 640e and 650e: 4 input channels 640u and 650u : 5 input channels Input Connector: 1 BNC per channel Input Impedance 640e/640u 650e/650u High to ground 200k Ohm II 130p 800k Ohm II 120p Low to ground 1k Ohm 1k Ohjm High to low 201k Ohm 801k Ohm Input Cuoling: DC, AC, or AC + IEPE; software programmable per channel basis High-Pass Filter (AC Coupling Cutoff) 640e and 650e: 1.0 Hz 640u and 650u : 0.1 Hz Input Range 640e and 650e: ±10V peak 640u and 650u : ±40V peak Input Protection: ± 60V max without damage Over-Range Indication: Software Low-Pass Filter: Software programmable per channel Type: Antialiasing hardware 3-pole 360 kHz, software selectable FIR filter. Any aliasing above 27 MHz is lost in the noise floor of 64k FFT. Amplitude Accuracy 640e/640u 650e/650u AC at 1kHz ±0.07 dB typ ±0.12 dB max ±0.1 dB typ ±0.15dB max DC ±(0.01% of reading + 2mv) ±(0.2% of reading +15mv) Amplitude-3dB: 0.49 x sample rate Amplitude Flatness: ±0.05 dB typ ±0.10 dB max DC to 20kHz Total Harmonic Distortion: -100 dB typical 1 kHz-97 dB typical 10 kHz SFDR Including Harmonics: 108 dB typical DC to 50kHz SFDR -60dB: 128dB typical DC to 50 kHz Channel to Channel Crosstalk: <-100dB at 1 kHz Channel to Channel Phase Matching 640e and 640e: <0.04°/kHz + 0.08° 650u and 650u : <0.06°/kHz + 0.1° Common Mode Rejection Ratio: -70dB typ -55dB max at 1kHz Wideband Noise 640e and 640u: <46 µ V RMS typ 76 µ V RMS max 650e and 650u : <184 µ V RMS typ 304 µ V RMS max IEPE Bias Source (640, 640u, 650, 650u channels 1 to 4) Current: 2.1 mA, 21V compliance (on/off software programmable per channel) Impedance: >255k Ohm IEPE Fault Detection Thresholds:<1V(short), > 20V(open) IEPE Fault Indication: Software indicator, per channel Analog Output (640e, 640u only) Chnnels: 1 Signal Connection: BNC Frequency Range: DC to 45 kHz (-0.25dB) Frequency Accuracy: ±50ppm DAC Resolution: 24bit DAC Update Rate: 93.75 KSps DAC Type: Delta-sigma; initial value 0.0V for 640e and 650e; not guaranteed for 640u and 650u Amplitude settings: 0 to 7V p-p or 0 to 3.5V peak Amplitude Accuracy at 1kHz: ± 0.05dB typ ±0.12 dB max Amplitude Flatness (DC to 20kHz): ±0.02dB typ ±0.1dB max SNR (DC to 20kHz): 100dB typ 90dB max Maximum Load: 1k Ohm (50Ohm with external power) Waveform Modes: Sine, swept sine, random, burst, arbitrary Output Impedance: 50 Ohm Tachometer Inputs Any analog input channel may be used as a tachometer input