Accu-Dial Superior * Systems * Solutions HE950 Sensor Accu-Dial Programmable potentiometer for control and accuracy with LCD display of set point in user units. Accu-Tach Programmable potentiometer for control and accuracy with LCD display of feedback in user units. • Visual confirmation of set points—repeatability across operators. • LCD display assures accuracy—reduces waste, saves money. • Easy installation and calibration—minimal process downtime. • EEPROM protection—programming and calibration retained. • Robust turning knob—precision and strength with a solid smooth feel. • Tough ABS plastic enclosure—NEMA 4 rated. Product Information Description Electro-Sensors’ Accu-Dial and Accu-Tach control devices allow you to economically and accurately monitor and control your processes. Accu-Series control potentiometers provide compact, versatile and precise process control with a programmable LCD set point display for accurate visual confirmation and feedback. Accu-Dial is a stand-alone product and is ideal for applications such as AC/DC variable speed motor drives, temperature control, hydraulic and pneumatic systems or any system currently using a traditional potentiometer. Accu-Tach is available as a 2 or 3 piece system and provides the same level of control as the Accu-Dial, but with feedback measurement. Accu-Series control potentiometers are housed in a tough ABS plastic, NEMA 4 enclosure. Quick and easy to install, both potentiometers mount through the same 3/8” hole as a standard potentiometer - no additional machining is necessary for installation. Accu-Dial has the same three-wire connection as the single- and multi-turn potentiometers it replaces. Accu-Tach has some additional wiring to incorporate its feedback measurement and external power supply input. Accu-Series feature a precise 10-turn potentiometer to give the operator a solid, smooth feel with a robust turning knob to reduce mechanical set point movement in high-vibration environments. The LCD display has a range from 0.000 to 9,999 and can be calibrated in user units, including time in process (TIP). Programming the Accu-Series user variables is straightforward and easily accomplished via the two pushbuttons on the front panel. Design Layout • Accu-Dial • Accu-Tach 3M™ VHB™ Tape’s allacrylic construction seals against moisture and most solvents, providing long-term resistance to UV and temperature cycles. The tape’s unique foam acts as a shock absorber for outstanding impact resistance. 3M. All rights reserved. * 10kQ value works in most applications - consult factory for more information 6111 Blue Circle Drive Minnetonka, MN 55343 Phone: 952-930-0100 Fax: 952-930-0130 ISO9001:2000 Certified Superior • Systems ■ Solutions Free Catalog and Application Assistance 1-800-328-6170 Visit Us Online: www.electro-sensors.com

Electrical Connections Connect the Accu-Dial's two power wires and one wiper wire to the process driver's three pot supply terminals, as follows: • Red wire to the high voltage terminal. • White wire to the wiper input terminal. • Black wire to the low voltage terminal. Connect the Accu-Tach's eight wires as follows: • Orange wire to the process driver’s pot supply high voltage terminal. • White wire to the process driver’s potentiometer wiper input terminal. • Gray wire to the process driver’s pot supply low voltage terminal. • Blue wire to the feedback sensor’s signal terminal. • Brown wire...