AQUATERR INSTRUMENTS M-300 사용자 설명서 - 페이지 7

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2. With the moisture calibration knob "W" (upper right side of meter) in the full clockwise

position, push the EC button. After about 4 seconds, the "EC-ON" light will illuminate and

the meter will read the salinity in µS (microSiemens).

3 WIPE OFF the sensor between readings.

(Available with Temperature and Temperature/Salinity Meters)

This is the easiest multimeter function to use. As with all of the other functions it is important

to have soil contact with the probe.

1. Push the probe into the ground until the temperature sensor is covered. This means

covering the entire winged section.

2. Wait until the sensor stabilizes (typically 2-3 minutes), and the sensor's temperature

approaches the soil's temperature. Generally, the more moisture in the soil, the faster the

sensor stabilizes.

3. Push the "TEMP" button. The meter reading indicates the sensor temperature.

4. WIPE OFF the probe between readings.

COMMOM PROBLEMS (Soil Temperature Measurements)

PROBLEMS

Sensor readings move slowly.

MEASURING SOIL TEMPERATURE

SOLUTION

The sensor gradually reaches equilibrium

with the soil. This is called an asymptotic

approach, meaning it moves fast at first,

and them slows down as it approaches

equilibrium. If you are taking other readings

(i.e. moisture), then take your temperature

readings last.