Texas Instruments TINSPIRE Data Collection Guidebook - Page 15

Calibrating a Sensor, Setting a Sensor to Zero, Single Point

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2. Click Change Units, and then select the sensor you want to change. Note: The sensors displayed are those you attached or selected to use offline. 3. Click the unit type from the unit menu. The measurement unit is changed. Note: You can change the units before or after you collect data. The collected data reflects the new measurement unit. Calibrating a Sensor When the software or handheld detects a sensor, the calibration for that sensor automatically loads. You can calibrate some sensors manually. Other sensors, such as the Colorimeter and the Dissolved Oxygen Sensor, must be calibrated to provide useful data. There are three options for calibrating a sensor: • Manual Entry • Two Point • Single Point For more information, see the sensor's documentation for calibration values and procedures. Setting a Sensor to Zero Not all sensors can be set to zero. You cannot set sensors in which relative measurements such as force, motion, and pressure are common to zero. Sensors designed to measure specific environmental conditions, such as Temperature, pH, and CO2 also cannot be set to zero. Performing an Experiment 11

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Performing an Experiment
11
2.
Click
Change Units
,
and then select the sensor you want to change.
Note:
The sensors displayed are those you attached or selected to use
offline.
3.
Click the unit type from the unit menu.
The measurement unit is changed.
Note:
You can change the units before or after you collect data. The
collected data reflects the new measurement unit.
Calibrating a Sensor
When the software or handheld detects a sensor, the calibration for that
sensor automatically loads. You can calibrate some sensors manually.
Other sensors, such as the Colorimeter and the Dissolved Oxygen Sensor,
must be calibrated to provide useful data.
There are three options for calibrating a sensor:
•
Manual Entry
•
Two Point
•
Single Point
For more information, see the sensor’s documentation for calibration
values and procedures.
Setting a Sensor to Zero
Not all sensors can be set to zero. You cannot set sensors in which relative
measurements such as force, motion, and pressure are common to zero.
Sensors designed to measure specific environmental conditions, such as
Temperature, pH, and CO
2
also cannot be set to zero.