10 STG-02 – Service Test Generator
SPM Instrument AB • Box 4 • SE-645 21 Strängnäs • Sweden Technical data are subject to change without notice.
Tel +46 152 22500 • Fax +46 152 15075 • info@spminstrument.se • www.spminstrument.se © SPM 2002-01 71689.B
SINGLE FREQ.
Freq: 800 Hz
Velo: 08.5 mm/s
Sens: 10.0 pC/m/s2
Synchronize with the
tested instrument
Mark with Left, select
VEL, ACC or DISP
with UP/DOWN
Change frequency
and amplitude
values with
UP/DOWN
Single frequency mode
Before you start testing, you either adjust the transducer frequency setting of the
tested instrument to the sensitivity of the STG-02 or the other way round. Both
instrument must have the same nominal frequency setting.
The vibration amplitude can be shown as velocity (VEL), acceleration (ACC), or
displacement (DISP). Go to the line with SET, press LEFT to move the cursor to
the beginning of the line, then change with UP/DOWN.
When testing, you use various combinations of frequency and amplitude set-
tings. Please note:
• The set frequency has to be within the max. frequency range of the tested
instrument.
• The total output effect of the STG-02 is limited, which makes frequency and
amplitude settings interdependent. Thus, the highest frequency for the max.
amplitude output of 50 mm/s is 2 kHz, and at the max. frequency of 8 kHz
the amplitude is limited to 12 mm/s (transducers TRV-01 and TRV-22/23).
The frequency / amplitude relationship is also affected by the selected
transducer type. In practise, the STG-02 will simply stop to increase a
frequency or amplitude value when the limit is reached.
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