Charge Sensor, order code CRG-BTA, $79
Specifications and User Guide
-Primary Test: Confirm that the proper setting is chosen on the sensor box.
-Primary Test: After initial power up or whenever changing range setting, press the Reset button for a few seconds with the leads shorted together just to make sure all charge is depleted from the internal capacitor.
-Secondary Test: Are the readings imprecise? Be careful when handling the leads or you may alter the readings with stray charge. Refer to the sensor booklet for more tips on the proper handling and use of this sensor.
Note: This sensor was manufactures with three sensitivity settings until the last week of May, 2018. Since then, a model with only two sensitivity settings has been the shipping model. See SPECIFICATIONS.
RELATED TIL ENTRIES
TIL 1385: What types of activities can I perform with the Charge Sensor?
TIL 1855: My Current Probe auto-IDs as a different sensor on LabQuest.
TIL 2211: Why does the Charge Sensor value drift upward during experiments?
-order code: CRG-BTA
units shipped starting the last week of May, 2018:
+/-2 V (+/-20 nC); +/-10 V (+/-97 nC)
units shipped before the last week of May, 2018:
+/-0.5 V (+/-5 nC); +/-2 V (+/-20 nC); +/-10 V (+/-97 nC)
-Maximum input: +/-150 V
-Typical bias input current: 0.005 pA
-Instrument time constant: 0.1 s
-The sensor is set to the stored calibration before shipping. There is no need for further calibration. We recommend using the zero button to zero the sensor with the leads connected to a common conductor before collecting data.
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