Hoyt's LS-series switchboard instruments provide high visibility instrument readings for all AC
parameters. The scale of each instrument in the series features high visibility markings and a 250-degree full-scale deflection. Meters are available in a variety of measuring ranges covering DC Amperes and Voltage, AC Amperes and Voltage, AC Frequency, VAR, and Phase Angle. The LS-80 series switchboard instruments provide accuracy in accordance with ANSI Class 1.0 for Amperes, Voltage, KWatts, and Hertz, and to ±4 degrees
for phase angle. The instruments use either a moving coil construction for DC measurements, or moving iron construction for AC measurements. The Hoyt LS-series will support phase angle measurements to 500 V at 1 A or 5 A without the need for an external potential transformer; kiloWatt measurements at up to 500 V at 1 A or 5 A without the need for an external potential transformer; frequency up to 500 V at 1A or 5A without the need for an external potential transformer; AC current up to 5 A without the need for an external current
transformer; DC current up to 20 A without the need for an external shunt. The Hoyt LS-series are packaged in a black plastic meter body, with a acrylic resin cover, and Bakelite terminal plate. Mounting
is via four studs. Black pointers are provided in all LS-series models.