is calibrated in nanocoulombs and has a range of ±100 nanocoulombs.
Potential—An alternative to measuring charge is measuring the difference of potential between
the red and black alligator clips. The sensor compares the potential of the red clip to the assumed
ground potential of the black clip.
Calibration
You do not need to calibrate Go Direct Static Charge. We have set the sensor to match our stored
calibration before shipping it.
Specifications
Care and Maintenance
Clean the sensor with a soft, damp cloth.
Battery Information
Go Direct Static Charge contains a small lithium-ion battery. The system is designed to consume very
little power and not put heavy demands on the battery. Although the battery is warranted for one
year, the expected battery life should be several years. Replacement batteries are available from
Vernier (order code: GDX-BAT-300).
Storage and Maintenance
To store Go Direct Static Charge for extended periods of time, put the device in sleep mode by holding
the button down for at least three seconds. The red LED will stop flashing to show that the unit is in
sleep mode. Over several months, the battery will discharge but will not be damaged. After such
storage, charge the device for at least two hours, and the unit will be ready to go. Exposing the battery
to temperatures over 35°C (95°F) will reduce its lifespan. If possible, store the device in an area that is
not exposed to temperature extremes.
Water Resistance
Go Direct Static Charge is not water resistant and should never be immersed in water.
If water gets into the device, immediately power the unit down (press and hold the power button for
more than three seconds). Disconnect the sensor and charging cable, and remove the battery. Allow
the device to dry thoroughly before attempting to use the device again. Do not attempt to dry using an
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