Rion UV-15, Instruction Manual, Page: 52 / 72

42
Operation Modes
Measurement lower limit
The lower limit for measurement is determined by the noise level.
This is the level that is indicated when a dummy load of 1000 pF is connected
to the PICKUP connector and the sensitivity switch is set to 5.00 pC/(m/s 2 ).
In order to limit the infl uence of noise upon the measurement to no more
than 1 dB (approx. 10%), the lower limit is set to a point two times higher
than the noise level.
Input Acceleration/Velocity/Displacement HPF/LPF
Inherent noise
(20°C 40% RH)
1000 pF dummy
Acceleration OFF/OFF 0.01 m/s 2 (RMS)
Velocity OFF/OFF 0.1 mm/s (RMS)
Displacement OFF/OFF 0.0015 mm (RMS)
PV-87
Acceleration OFF/OFF 0.0013 m/s 2 (RMS)
Velocity OFF/OFF 0.013 mm/s (RMS)
Displacement OFF/OFF 0.00025 mm (RMS)
PV-85
Acceleration OFF/OFF 0.008 m/s 2 (RMS)
Velocity OFF/OFF 0.08 mm/s (RMS)
Displacement OFF/OFF 0.0013 mm (RMS)
PV-90B
Acceleration OFF/OFF 0.25 m/s 2 (RMS)
Velocity OFF/OFF 2.5 mm/s (RMS)
Displacement OFF/OFF 0.05 mm (RMS)
PV-91C *1
Acceleration OFF/OFF 0.02 m/s 2 (RMS)
Velocity OFF/OFF 0.53 mm/s (RMS)
Displacement OFF/OFF 0.024 mm (RMS)
PV-90I
*2
Acceleration OFF/OFF 0.007 m/s 2 (RMS)
Velocity OFF/OFF 0.117 mm/s (RMS)
Displacement OFF/OFF 0.0068 mm (RMS)
Measurement conditions: temperature 20°C, unit powered from batteries using BP-17
*1 PV-91C Inherent noise standard value :
0.02 m/s 2 (TYP.),0.04 m/s 2 (MAX.), 1 Hz to 20 kHz.
*2 PV-91CH Inherent noise standard value :
0.007 m/s 2 (TYP.), 0.009 m/s 2 (MAX.), 1 Hz to 15 kHz.