| Charge preamplifier Type 2667 is intended for connection to charge type accelerometers in areas with potential risk of explosions, when monitoring plant machinery in harsh environments, for industrial machine installations and for gas turbine applications requiring long mean time between failures. The amplifier is certified Intrinsically Safe to EEx ib IIC T6 for use in hazardous areas. To protect the Type 2667 from harsh environmental conditions, such as humidity and vibration, it should be mounted in a junction box in conformity with IP 65, as available from Brüel & Kjær Vibro. Type 2667 is available in a number of versions when other amplification factors or filtering ranges are required. | 
