BRUEL & KJAER VIBROCONTROL 920, Руководство пользователя, Страница: 7 / 35

Display and operating elements VIBROCONTROL 920
VC920E / C102833.002 / V 13 Page 5 / 33
2 Technical Data
Power supply 115 / 230 V AC +/- 15 %;
50 / 60 Hz
24 V DC -25 % / +33 %
Load AC: P
max
: 12 VA
DC: P
max
: 7 W
Standard delivery 230 V AC
Fuses 24 V DC: fine-wire fuse 500 mA/tr
115 / 230 V AC: temperature fuse in the
transformer
The power supply must only be made via separator (switch or circuit breaker)! The switched
used as a separator must meet the requirements according to IEC 60947-1 und IEC 60947-3
and be suitable for application
Caution
Only one type of power may be connected at one time.
Measurement variable Effective (rms) value of vibration velocity
Frequency range 1 ... 1000 Hz
1
10 ... 1000 Hz
2
Accuracy
±
5 %, in relation to displayed value
Internal resistance R
i AC
= 35 k
Ω
R
i DC
= 39 k
Ω
Sensor types
Vibration acceleration sensor
Sensitivity 10 mV/g x (0.1 ... 1.99)
100 mV/g x (0.1 ... 1.99)
Power requirement -24 V DC / 5 mA
Current requirement + 4 mA / R
i
< 4 k
Ω
Vibration velocity sensor
Sensitivity 70 mV/mm/s x (0.1 ... 1.99)
100 mV/mm/s x (0.1 ... 1.99)
Analog outputs
Short-circuit proof 0 ... 10 V R
L
> 10 k
Ω
0 / 4 ... 20 mA R
L
< 500
Ω
1
VIBROCONTROL 920-2k: 1 … 2000 Hz
2
VIBROCONTROL 920-2k: 10 … 2000 Hz