詳情：
Low-cost vibration analyserIEPE and charge type accelerometers supportedThree parallel independent profiles - parallel acceleration, velocity and displacement measurementsBuilt-in machine filter (10 Hz ÷ 1 kHz) meeting ISO 20816 requirementsFFT real time analysis - up to 1600 lines (included)1/1 octave or 1/3 octave real time analysis (option)RPM measurements (option)Time domain signal recording to WAV format (option)Advanced Data Logger of RMS / Max / Peak results including spectral analysisOLED colour displayMicroSD cardAdvanced trigger functionPower supply by four AA rechargeable or standard batteriesBattery operational time up to 16 h (in the meter mode)Compact, light weight and robust case (only ca 390 grams including batteries)USB 1.1 Client
SVAN 974 Vibration Level Meter and Analyser is intended for general vibration measurements and machinery condition monitoring. It can be used by consultants, maintenance services, industry R&D departments etc. Instrument allows parallel acceleration, velocity and displacement measurements. Three vibration profiles allow parallel measurements with independently defined filters and RMS detector time constants. Each profile provides a significant number of results (like RMS, Peak or Max). The advanced time-history logging for each profile provides the complete information about the measured signal. Measurements data stored to microSD card can be easily downloaded to any PC using the USB interface and SvanPC++ software. Most of required weighting filters, like VelMF, meeting ISO 10816 standard requirements, are available with this instrument. Using the computational power of its digital signal processor, the SVAN 974 instrument can perform additionally the real-time 1/1 or 1/3 octave or FFT analysis. The SVAN 974 offers also, parallel to the vibration measurement, the RPM measurement with Monarch laser tachometer. Instrument is powered from four AA standard or rechargeable batteries. The powering of the instrument from the USB interface is also provided. The robust and very compact case together with a light-weight design complete the exceptional features of this modern instrument. SVAN 974 Vibration Level Meter Specification | Standards | ISO 10816-1 | | Number of Profiles | 3 | | Weighting Filters | Acceleration: HP1, HP3, HP10, Wh Velocity: Vel1, Vel3, Vel10, Displacement: Dil1, Dil3, Dil10 Machine filter: VelMF (ISO 10816-1) | | Time Constants | from 100 ms to 10 s | | RMS Detector | Digital True RMS detector with Peak detection, resolution 0.1 dB | | Accelerometer | SV 80 IEPE, single axis, sensitivity 10 mV/(ms-2) ~ 100 mV/g | | Measurement Range | 0.01 ms-2 RMS ÷ 438 ms-2 Peak (with SV 80) | | Frequency Range | 1 Hz ÷ 5 kHz (with SV 80 and HP or HP1 filter) | | Internal Noise Level | Less than 10 μV RMS (IEPE input & HP1 filter) | | Dynamic Range | > 100 dB | | | Vibration Analyser | | 1/1 Octave Analysis (option) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 1 Hz to 16 kHz (full band) with selectable weighting filter and detector | | 1/3 Octave Analysis (option) | Real-time analysis meeting Class 1 requirements of IEC 61260, center frequencies from 0.8 Hz to 20 kHz (full band) with selectable weighting filter and detector | | FFT Analysis (included) | 400 or 800 or 1600 lines in selectable bａnd from 78 Hz to 20 kHz with HP weighting filter, selectable averaging: linear or exponential, and selectable window | | RPM (option) | Rotation measurement option without Laser Tachometer (option), measurement of RPM, RPS, RMAX, RMIN | | | | | General information | | Input | IEPE, Charge amplifier or Direct with TNC connector | | IEPE Current | Selectable: 1.5 mA, 3.0 mA, 4.5 mA | Frequency Range
(-3 dB) | 0.7 Hz ÷ 22.6 kHz, sampling rate 48 kHz | | Memory | MicroSD card 8 GB (removable & upgradeable) | | Display | Colour 320 x 240 pixels, OLED type | | Keyboard | 9 push buttons | | Communication interfaces | USB 1.1 Client
Extended I/O - AC output 1 V RMS Sine (1.41 V Peak) or Digital Input/Output (Trigger - Pulse) | Power supply | Four AA alkaline or rechargeable NiMH batteries (not included) | | USB interface 500 mA HUB | Environmental Conditions | Temperature from -10 oC to 50 oC
Humidity up to 90% RH, non-condensed | | Dimensions | 140 mm x 83 mm x 33 mm (including microphone and preamplifier) | | Weight | Approx. 0.4 kg with batteries (without accelerometer) |
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