OMEGA Engineering, Inc. Two Stage Valve Control Batch Controller DPF-310

Featuring 8 digits of bright, 14 mm (0.55"), alphanumeric display, the DPF-310 Series can accept up to 20,000 pulses per second of digital count. The analog input version accepts 4 to 20 mA signal and it uses a highly linear integrator (V to F converter) to generate 0 to 10 kHz digital pulses. The standard unit has 2 separate, 8-digit, floating decimal, “K” factors to convert the inputs to meaningful total and rate data. An optional 16-point K-factor can linearize flow from non-linear meter outputs. The user, with the push of a button, can toggle back and forth to view the total of the batch, the rate of flow or the grand total of flow. The DPF-310 Series may be thought of as two separate counters and a ratemeter. The “batching” counter counts to prewarn and preset numbers entered by the user and enables separate control outputs. The “totalizing” counter gives a cumulative reading or grand total. Finally, the ratemeter counts the number of pulses per second and, with its scaling feature, can provide gallons per minute or any other rate measurement without the totalizer losing counts.