Pre-amplifier for acoustic sensor
20 - 600 kHz, 40 - 60 dB | 1222 Physical Acoustics

The 1222 Charge Preamplifier is used in cases where there is a need for long lengths of sensor input cable. Charge preamplifiers do not suffer from distance/attenuation effects like voltage preamplifiers do. They maintain the signal sensitivity regardless of distance from the passive sensor to the preamplifier.

The 1222 works with our entire range of single-ended sensors and features selectable 40/60 dB gain, standard PAC pluggable filters, bandwidths of 20 - 600 kHz and built-in test signal and control. It is directly compatible with all PAC systems using the single Power/Signal AE input BNC connection.
Additional
Features

40 - 60 dB internal gain selection. Factory default set at 40 dB.
* Uses PAC pluggable Band Pass filters for a narrower frequency response which further enhances Signal to Noise and filters out unwanted lower frequency vibrations. See 1220A filter selections.