Predetermining Counter/Ratemeter- 9100 Series. The versatile 9100 series is a multi-functional multi-preset, totalising counter/ratemeter that features a supertwist backlit display. The counter/ratemeter allows simultaneous operation in different modes, such as rate measurement, batch counting and totalising. 3 line supertwist LCD display, viewable from any angle Easily programmed in various languages using simple menu structure and 10-key keypad Simultaneously maintains any 3 of the following: - Count preset, count pre-warn, batch preset, overspeed, underspeed condition and displays count, total and speed EEPROM retains program and data for 40 years with no power Counting continues while rate measurement is in progress Accurate enough for position sensing and robotic control Can be powered from 85-265 V ac for worldwide use Multiplying and dividing prescalers enable display directly in the required units Manual, remote and automatic resets available Remote inhibit and remote keyboard disable Fast electronic or slow contact closure inputs, all with optical isolation Auxiliary 12 V dc 100 mA power output to power sensor IP65 protection