Prestige electronics offers compact digital frequency meters. These frequency meters are able to sense sinusoidal or non-sinusoidal distorted waveforms for electricity boards, electrical panels, test benches, inverters, ups systems, ac drives, frequency converters, and dg sets. Following are some electrical features of these frequency meters which include:display is 4-digit 12.5 mm high red led. Measuring range is 45 to 99.99 hz with an accuracy of 0.01% ±l digit [crystal controlled time base];external i/p signal [pef-10] [2 hz to 100 hz sensitivity is from 100 mv to 500 v ac; unit can be operated between wide variations of 175 and 300 v ac. Frequency meters with different calibration ratios and suuply voltages ac or dc, are also available in three differet sizes: 96 x 96 x 55 mm, 72 x 72 x 110 mm and 48 x 96 x150 mm. Prestige electronics also offersfrequency meters with high and low alarms settable by thumbwheel with delay facility. To check proper functioning and calibration of the instrument, test facility is provided in the 96 x 96 mm instrument.
