Trinity engineering is a provider of state-of-the-art equipment in power factor and power/energy management. The infinity digital kwh meters are true rms type digital meters for use in three-phase four wire electrical systems. Design characteristics: the design of these meters is based on proven micro-controller technology, resulting in compact and accurate meters. The series uses the powerful microcontroller working at 16 mhz speed. The meter uses state-of-the-art digital signal processing [dsp] circuitry to achieve very high accuracy measurement of true rms value of kwh. The influencing parameters like variation in voltage, current, frequency, etc, have almost no effect on the accuracy of the meter. The meter has non-volatile memory, guaranteed to store data for ten years reliably, even in the absence of power. Features of the infinity digital kwh meters : bright 16 x 1 lc display; class 1.0 accuracy; compact 96 x 96 din enclosure; ideal for supervision and audit of specific loads; micro-controller based; true rms; and optional rs-485 port.