Svantek SVAN 979, Руководство пользователя

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SVAN 979 User Manual - Appendixes
C.2. S
PECIFICATION OF
SVAN 979
AS A
V
IBRATION
L
EVEL
M
ETER
The configuration of the complete VLM and its normal mode of operation
SVAN 979 sound & vibration analyser
SV 80 10mV/m/s2, IEPE accelerometer (see C.6 for details)
SC 27 coiled cable for accelerometer 2 m
SV 18T LEMO 7-pin to TNC integrated connector
Accessories included in SVAN 979 instrument set
SC 59 Output cable for I/O connector, LEMO to 2 x TNC
SC 16 USB 1.1 cable,
SA 33 Power supply unit.
Accessories available
SV 55 RS 232 interface for SVAN 95x instrument series
SC 18T LEMO 7-pin to TNC integrated connector
SC 27 TNC (plug) to TNC (plug) 2 m coil cable
SA 17A external battery pack
SA 27 permanent magnet
SA 15 power supply unit
SV 110 vibration calibrator (or equivalent)
Measured quantities
The measured quantities in the vibration meter mode are: RMS , PEAK , P
–P
, MAX and MTVV .
Definitions for mentioned parameters are given in Appendix D.
Mounting for vibration tests
The accelerometer can be connected with the VLM using proper cable provided by the manufacturer.
The accelerometer can be mounted on the plate in various ways:
•
using threaded stud onto a flat, smooth surface,
•
using thin layer of bees-wax for sticking the accelerometer into the plate,
•
using mica washer and isolates stud, where the body of accelerometer should be electrically isolated from
the measuring object,
•
using permanent magnet.
Values of the measured acceleration
Linear operating ranges for the acceleration (with the SV 80 sensitivity equal to 10mV/ms
-2
accelerometer.
Two ranges with the nominal values: 1 00 ms
-2
( LOW ), (140 dB, related to 10
-6
ms
-2
).
352 ms
-2
( HIGH ) (151 dB related to 10
-6
ms
-2
).
•
Linear measurement with the Wh filter:
from 0.003 ms
-2
to 352 ms
-2
(the sinusoidal signal RMS)
from 0.03 ms
-2
to 500 ms
-2
(PEAK)