We had an enquiry from a customer who had a flow meter with a pulse output and needed a display that could both totalize the flow and give an instant rate reading, with a relay to trigger a batch cut-off. That combination – totalizer, rate indicator, and batch controller all in one unit – is exactly what the ADtek CS2-TM (Pulse Input) is built for.
This looks simple, but pulse-input totalizers vary a lot in how wide a frequency range they can actually read accurately, and that matters because flowmeters, encoders, and proximity switches all output pulses at very different rates. The CS2-TM-Pulse auto-ranges from 0.01Hz up to 100KHz (140KHz on the optional higher range), and accepts Contact, NPN, PNP, or Voltage pulse types – switchable at the back of the meter, so it isn’t locked to one sensor type. It reads the K factor, 1/K factor, or flow speed setting to match whatever output format your flowmeter actually uses.
In actual application, the CS2-TM-Pulse gives you two display rows at once: a 10-digit totalizer or batch counter alongside a 4 2/3 digit immediate value (or 6-digit batch), both live. Immediate value accuracy is ±0.005%, with the decimal point auto-moving as input frequency changes. You get 3 external control inputs and, in standard form, up to 4 relays that can each be assigned independently to either the immediate value or the totalizer/batch function – with N/R/C batch control modes, hysteresis, and energize/de-energize delay settings. Analogue output, pulse output, and RS-485 (Modbus RTU, up to 38400bps) are available as options. CE and RoHS compliant.
From our experience, before we quote this, we would normally check your pulse source’s output type (contact, NPN, PNP, or voltage) and its actual frequency range, how many relays and what functions you need them for, and whether you need the analogue, pulse, or RS-485 output option. Hope this helps.
