Digital amplifiers are used to adjust the mV/V-output signal of strain gauges to a connected control. The serial RS-422/485 interface allows digital and direct signal processing in programmable logic controllers (PLC) and to run up to 32 amplifiers in one bus. The model EZE20X006 series is designed for lightly dynamic and static applications for example weighing. It is cased in a compact housing. The integrated connector strip allows to plug the housing for example onto a circuit bar. It is also available with an adapter for top hat rail mounting or an adapter for top hat rail mounting with integrated converter to RS-232.
FeaturesDigital Amplifier for strain gauges mountable on PCB or top hat rails Digital outputsignal via RS-422/RS-485 or optional RS-232 Limit frequency up to 20 Hz for nearly static applications Accuracy 0,002 % of full scale Strain gauges starting with 350 Ohm connectable Supports 6-wire technology Bridge supply 5 VDC Needed power supply 12-24 VDC Plugable via integrated connector strip Space-saving design because of slender housing Easy configuration by ASCII-commands Protection Class IP 40Application
Because of its high accuracy and speed the amplifier EZE20X006 suits as well for weighing as for statice force measurement and monitoring at engines. It is possible to connect all kinds of strain gauges (max 1 sensor, 350 ohm) with an output signal up to ± 2,2 mV/V. The internal sensor supply is 5 VDC. Usually the amplifier is not pre-adjusted and the customer connects it to the force transducer and also adjusts it. The amplifier can be programmed by ASCII-codes. Using a communication or a terminal programm allows to connect the amplifier via the serial RS-485 interface to a computer to set its parameters. A software with oscilloscope function which runs under windows is also available. The integrated connection strip allows to plug or to braze the amplifier onto a circuit board. An adapterboard with screw-type-terminals for top hat rail mounting is also available. On this way the amplifier can be integrated in electric control cabinets. The adapterboard is also available with integrated RS-232 converter. The many possiblities to adjust filters allow to damp interfering signals.
