The ProtEX-MAX PD8-6262 is an explosion-proof dual-input rate/totalizer ideal for flow rate, total, and flow control applications. The totalizer features a dual-line display, with a main display 0.60" (15 mm) high, and a second display of 0.46" (12 mm) high superluminous LED digits, which can be read in any lighting condition, including direct sunlight. The totalizer is housed in a field-mountable, NEMA 4X/IP68 rated enclosure available in either aluminum or stainless steel for convenient indoor and outdoor installation.

The totalizer accepts two inputs; either can be current or voltage signals (e.g. 4-20 mA, 0-10 V) from analog output flowmeters. The rates, as measured by the flowmeters, are automatically aggregated into cumulative totals and grand totals which can be displayed with the rates.

Various math functions may be applied to the rate, total, and grand total of the two channels, including addition, difference, absolute difference, average, weighted average, multiplication, division, minimum, maximum, draw, ratio, and concentration. This is in addition to the input signal conditioning functions (linear, square root, programmable exponent, or round horizontal tank calculations).

The displays, relays, and the analog output may be assigned to the rate, total, or grand total of input channels A or B, or math result channel C. Three of the programming buttons can be set for custom operation.

A fully loaded ProtEX-MAX PD8-6262 dual-input rate/totalizer comes with four SPDT relays, a 4-20 mA output, five digital inputs and four digital outputs, and RS-485 serial communications. The four relays can be used for alarm indication or process control applications. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O features make the ProtEX-MAX an excellent addition to any system.