Bruel & Kjaer Vibration and Sound 2511

The 2511 is vibration and sound equipment from Bruel & Kjaer. Additional Features: Acceleration: 0.3 Hz; 0.002 - 100 ms-2 0.0002 - 10 g Velocity: 3 Hz; 0.02 - 1000 mm/s 0.001 - 100 in/s Displacement: 10 Hz; 0.0003 - 10 mm 0.00002 - 1 inch Accuracy : including accelerometer is ± 5 % absolute overall within linear ranges. High Pass Filter : 3-pole Butterworth, fall off 18 dB/octave Low Pass Filter : 2-pole Butterworth, fall off 12 dB/octave Detector: Quasi RMS: True reading indicated for sinusoidal signals with crest factor < 3 Time Constants : 1 s and 10 s switchable Time Constants in Max Hold : 1 s Max Hold drift : < 10 % per 5 minutes with FSD Detector : True Peak-to-Peak : Time Constants : 1 s and 10 s switchable Max Hold drift : < 10 % per 30 minutes with FSD Rise Time : > 25 µs : 15 kHz LP filter Dynamic Range : for both detectors is 40 dB External Filter Sockets : 2 x BNC Signal level : 1 V PEAK or RMS Input Socket Impedance : 16 kω Output Impedance : 1 kω AC : 2.7 V RMS for FSD. Overload 6.8 V peak DC Log : 2 V for FSD, 0.05 V/dB. Overload 2.25 V DC Lin : 3 V for FSD. Overload 4.5 V Internal Oscillator : 80 Hz Battery : 4 x 1.5 V - D cells, IEC type R20 Battery Life : 15 hours with Alkaline batteries Temperature Range : -10 °C to +50 °C Humidity Range : 0 to 95 %RH, non condensing Electromagnetic : fields up to 100 A/m increases noise floor < 14dB