8 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
Vibration mode
To test an instrument, connect its VIB input to the VIB output of the STG-02. In
vibration mode, the STG-02 sends one of two signals:
Single frequency is a single frequency sine wave with adjustable amplitude.
There are 16 choices from min. 2 Hz to max. 8000 Hz..
Mixed frequency is a wave containing 5 frequencies. In the low range is contains
100, 300, 500, 700, and 900 Hz, in the high range 500, 1500, 2500, 3500, and
4500 Hz. The amplitude is adjustable.
Transducer is a multiple choice line for selecting the SPM vibration transducer
which is to be simulated: TRV-01, TRV-12, TRV-18, TRV-20, or TRV-22. These
transducers have different outputs (charge, voltage, current) and measure differ-
ent quantities (velocity, acceleration). The STG-02 output corresponds to the
transducer‘s nominal sensitivity.
In addition, there are 6 adjustable transducer settings: 2 for acceleration in m/s
2
(voltage), 2 for velocity in mm/s (voltage), and 2 for acceleration in pC/m/s
2
. You
can adjust the nominal sensitivity and the bias voltage. These transducer simulations
can be used to test VCM-20 if it is operated with ICP transducers, or instruments
from other manufacturers.
Transducer selection:
Transducer output (charge, voltage,
current), measured quantity (velocity,
acceleration, displacement) and nominal
sensitivity.
Single frequency:
One of 16 selectable frequencies,
min. 2 Hz, max. 8000 Hz.
Adjustable amplitude
Mixed frequencies:
Signal containing 5 frequencies,
low range from 100 to 900 Hz,
high range from 500 to 4500 Hz.
Adjustable amplitude
VIBRATION MENU
Tra: TRV-01/22
Single freq.
Mixed freq.
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