A versatile timer/controller for WPI's EVC 4000 epithelial voltage clamps and many general purpose applications

Easy to use, PRO 4 is a microcontroller-based four channel timer-controller, keypad operated, including a front panel keyboard and a 4x20 character LCD display. Timing sequences with timed intervals ranging from 1 millisecond to 9999 seconds are possible. PRO 4 may be externally synchronized or manually operated. Standard logic output voltages of 0 and +5 volts can command a wide range of laboratory devices.

PRO 4 Specifications

Delay

1 msec to 9999 sec, low logic

On times

1 msec to 9999 sec, high logic

Off times

1 msec to 9999 sec, low logic

Event counting

0 to 65,535 (free run mode), 0 to 9999 (normal)

Output

5 V, 120 mA, maximum source

Maximum time error

2 microseconds

Operating modes

free run, replication, normal

Power

120/240 volt AC wall adapter