Frequency meter F4080

Frequency meter F4080

F4080 is digital measuring, fully programmable device from series 4080, designed on basis of microcontrollers. The device is used to measure frequency 50/60Hz in electrical substations and power plants. F4080 is powered by the measured AC voltage. F4080 has potential-free contacts for remote signalization if measured frequency goes out of certain specified range (option “R”). The unit is designed to be mounted on boards in control rooms of electrical substations.

user manual

F4080 is offered in following variety*:

- basic option - without any potential-free contacts, user menu is not code-protected
R there are three relay contacts that provide remote signalization, acting when certain programmed voltage levels are reached
C code-protected user menu
X user is not allowed to change device settings
* - Every option can be ordered in any combination with other options, excluding versions “C” and “X”.

Main technical parameters of F4080

nominal input frequency 50/60 Hz
frequency range 20 - 300 Hz
power supply 55-250 VAC/ 30-270 VAC
measuring circuit input resistance min 200kOhm
display super bright red, 4-digit, 76х25 mm visible, purple filter
measurement error < 0.3 % rgd + 2 digit
measurement cycle < 1 s
relay contacts count up to 3
power consumption < 3 W
work temperature from 0° C to 55° C
storage temperature from -50° C to +90° C
dimensions (H/W/D) 48/96/85 mm or 96/96/85 mm (w/o plugs); 48/96/95 mm or 96/96/95 mm (with plugs)
mounting hole (H/W) 43/90 mm or 90/90 mm quad, centered
protection class IP52 front, IP31 back
own weight 320 g

Normal mode of operation

User-defined parameters

  • low frequency level
  • high frequency level
  • display blinking when Hi/Lo
  • hysteresis
  • delay for relay contacts