Power output specifications

System power out limits (when powered with 12 VDC):

Temperature (°C) Current Limit1 (A)
–40° 5.8
20° 3.7
70° 2.0

1 Limited by self-resetting thermal fuse

12V: Provide unregulated 12 VDC power with voltage equal to BAT+ input voltage. Disabled when operating on USB power only. Current output limited by thermal fuses. Two 12V terminals share one thermal fuse up to 2.5 A @ 20 °C.

  • Terminals: 
    • 12V: two terminals, always on
    • SW1 and SW2: switched under program control, current limit at 2.1 A each

VX: Two independently configurable voltage terminals (VX1-VX2). VX outputs are produced by a 12-bit ClosedDAC Digital to analog conversion. The process that translates digital voltage levels to analog values.. In this case, these terminals are regularly used with resistive-bridge measurements (see Resistance measurements for more information). VX terminals can also be used to supply a switched, regulated 5 VDC power source to power digital sensors and toggle control lines.

NOTE:

CR350 data loggers are not capable of applying reverse excitation. Set the RevEx parameter of all bridge measurement instructions to False.

  • Range: 150 to 5000 mV
  • Resolution: 1.6 mV
  • Maximum Source Current: 50 mA total, concurrently or independently.

See also Voltage measurements.

See also Power output.