The device measures the True RMS value of the voltage and frequency in mono phase systems accurately. It is possible to observe the voltage value in the upper screen and the frequency value in the buttom screen simultaneously. The device contains many protections as followes: ■ Over Voltage protection. ■ Under voltage protection: ■ Over frequency protection. ■ Under frequency protection. As the device is beeing installed it closes its output contact if the voltage and frequency values are within the adjusted ranges. In case of any previous mentioned faults the the device opens its output contact at the end ofdelay adjusted by user. When the values return withiin the adjusted ranges the device closes its output contacts at the end of an adjusted delay.
Measurement 0-500 Vac – 40-100 Hz Over-Under Voltage range 150-210V 230-290 V Assymetry range No Relay output 1 Phase sequence control No Ambient temperature -5 C….+50 C Storage temperature -20 C….+70 C Supply voltage 230 Vac Dimensions 72x72x80 mm Quantity in 1 box 10
