We had an enquiry from a customer who needed a panel meter to monitor frequency on an MCC panel – basically to keep an eye on incoming supply frequency and trigger an alarm if it drifted out of range. The ADtek CS2-F is built for exactly this, and it works equally well on switchgear panels or test equipment tied to a PC/PLC.
This looks simple, but “frequency meter” still needs some thought. The CS2-F reads 0.01Hz to 100KHz as standard (up to 140KHz on optional purchase), and it can take either a voltage pulse or sine wave input depending on your signal source – so we would need to know which one you have before quoting. The display resolution also shifts automatically based on your maximum input frequency, so it stays accurate across the range you actually use.
In actual application, the CS2-F gives you up to 4 relay outputs, each programmable independently as Hi/Lo/Hi Hold/Lo Hold/Go, with start delay, hysteresis, or energized/de-energized delay – or set up as remote control from a PC/PLC. There are also 3 digital inputs that can be set individually for Tare, PV Hold, Max/Min Hold, remote monitoring, or relay latch reset. Analog output and RS-485 (Modbus RTU) communication are available as optional purchases if you need to feed the reading into a SCADA or PLC system. CE and RoHS certified.
From our experience, before we quote this, we would normally check your input signal type (voltage pulse or sine wave), the frequency range you’re actually measuring, how many relays you need and what logic for each, and whether you need the analog output or RS-485 option. Hope this helps.
