Trumeter 3905DD250 Datasheet & Stock

The 3905-DD250 is an LCD programmable preset counter and counter/timer with prescaler, quadrature input, and EEPROM data storage housed in an IP65-rated DIN case. It features a versatile configuration for quadrature or unidirectional inputs, dual or single preset modes with batch preset capability. The device supports automatic, manual, or electronic reset via NPN or PNP sink/source inputs. Its high-visibility supertwist backlit LCD display provides clear readability from any angle, showing the current count on the main display and preset (or batch preset) value on the lower display. Programming is menu-driven for ease of use. Additional features include programmable backlight (ON, OFF, AUTO), data retention over 40 years without power, up to three decimal places for the preset, and power options of 85-265VAC or 10-26VDC with a 12VDC sensor output. Opto-isolated inputs, wide prescaling range, and relay outputs rated at 5A (latch or pulse mode with programmable pulse duration) enhance its functionality. Its robust design makes it suitable for industrial environments requiring reliable counting and timing functions.

View 3905DD250Datasheet [pdf]