Troubleshooting

  • Primary Test: Plug the probe into an interface and run the data collection program. Use wire leads to connect the probe to a DC supply with a known resistance. Use a voltage probe or voltmeter to measure the voltage. Compare the measured current against the theoretical reading. Note: We recommend a DC battery for this test, since some variable power supplies may not deliver clean DC voltage.
  • Secondary Test: The sensor contains a replaceable 10 A fuse. If the sensor stops measuring current, you may need to replace a blown fuse. Turn the sensor over and remove the four screws on the back. The fuse can be seen from the top. Use a small screw driver to remove the fuse. Insert a replacement. One replacement fuse has been included with the sensor. Additional replacements, in packs of five, can be purchased from Vernier.
    Replacement Fuse for High Current Sensor (FUSE-HCS)

Additional Troubleshooting

Specifications

  • Resolution
    ⚬ 12-bit: 4.9 mA
    ⚬ 13-bit: 2.4 mA
  • Sensor range: ±10 A
  • Maximum voltage input: ±40 V
  • Replaceable fuse Current: 10 A
  • Calibration equation
    ⚬ slope = 4.51 A/V
    ⚬ intercept = -11.31 A

Calibration

Calibrating the sensor is usually not needed prior to use. You may want to zero the sensor through the software; connect the sensor’s terminals with a single wire/alligator clip first. When measuring currents that are less than 0.6 A, we recommend our Current Sensor (DCP-BTA). If you use HCS-BTA to measure small currents, e.g. less than 1 A, you might want to calibrate the sensor.

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