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SVAN 974 Vibration Meter With FFT Analyser

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.

SVAN 974 Vibration Meter With FFT Analyser

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The SVAN 974 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^–²RMS ÷ 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, centre 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, centre 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)

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.

SVAN 974 Datasheet

SVAN 974 User Manual