35
Models 1685B 1687B 1688B
Tracking Overvoltage
Protection
O/P 1-5 V: set
voltage +2 V
O/P 5-20 V: set
voltage +3 V
O/P 20-60 V: set
voltage +4 V
O/P 1-5 V: set
voltage +2 V
O/P 5-20 V: set
voltage +3 V
O/P 20-36 V: set
voltage +4 V
O/P 1-5 V: set
voltage +2 V
O/P 5-18 V: set
voltage +3 V
Transient Response Time
1.5 ms
Power Factor Correction > 0.95 at optimal load
Cooling Method Thermostatically controlled fan from zero to full speed
Protections Overvoltage, Overtemperature, Overload
Special Features
3 User-Defined Voltage and Current Presets, Analog
Remote Control
External Timed Programming
Max. 20 voltage and current steps
Max. 99 min + 59 sec step time
Operating Temperature 32 °F to 104 °F (0 °C to 40 °C) ≤ 80% R.H.
Storage Temperature 5 °F to 158 °F (-15 °C to 70 °C) ≤ 85% R.H.
7.9” x 3.5” x 8.2” (200 x 90 x 208 mm)
Weight 5.2 lbs (2.4 kg)
Supplied Accessories
Power cord, instruction manual, application software
CD, USB cable, remote control connector
Note: All specifications apply to the unit after a temperature stabilization time of 15
minutes over an ambient temperature range of 23 °C ± 5 °C. Specifications are
subject to change without notice.