AQUATERR INSTRUMENTS EC-300 User Manual Download Page 4

 

AQUATERR INSTRUMENTS 

Moisture and Multimeter Owner’s Manual 

 
 

Your patented Aquaterr Instruments Meter can assist you in effective soil-water 
management. It is light weight and portable providing instantaneous moisture and salinity 
readings in rapid succession at multiple sites and depths. It is virtually free from errors 
ordinarily caused by temperature, pH, dissolved salts and metallic ions. However, its greatest 
virtue is its ease of use.  
 
This manual covers the Moisture Meter, the Temperature / Moisture Meter, and the 
Temperature/Moisture/Salinity (E.C.) Multimeter.  

 
 
 

GO TRY IT 

 

Although the meter is a versatile, sophisticated instrument, it is easy to use. The first thing you 
should do with your new meter is to calibrate the moisture, and then go ahead outside and try 
it.  
 
1.  Choose a reasonably soft and moist area to start. 
2,  Gently insert the probe into the ground, six inches is enough. 
3.  Press the “MSTR” or “TEST” button on the front panel. The meter will respond with the soil 

moisture reading.  

4.  Press the “TEMP” button and the meter will show you the soil temperature.  
5.  To read EC (Salinity Meter only), set the moisture calibration knob “W” (upper right corner), 

to the moisture reading from step 3. Now press the “EC” button and after about 4 
seconds, the salinity will be displayed. 

6.  Wipe the probe between tests. 
 
NOTE: While your Meter was calibrated and tested before it left the factory, the Meter may 
need calibration before the readings will be accurate. This manual will show you how easy it is 
to calibrate and operate your new Meter.  For the Salinity Multimeter, the Salinity calibration is 
set at the factory and is very stable. It would be very rare for this unit to require calibration 
after it leaves, please do this ONLY if you feel very certain that your readings are not accurate.   

 

Summary of Contents for EC-300

Page 1: ...AQUATERR I N S T R U M E N T S M T EC 300 User s Manual Aquaterr Digital Soil Moisture Temperature and Salinity Meters ...

Page 2: ...2 AQUATERR INSTRUMENTS Leader in Portable Soil Measuring Technology ...

Page 3: ...ovel and then insert the probe If the ground is still too hard use an auger or a pipe to create the hole Do not hit the meter end This may result in loss of calibration or destruction of your meter Do not cut the roots of plants if avoidable Insert the probe with the flat edges parallel to the roots Test the soil under plants by inserting the probe at an angle Be especially careful of the tap root...

Page 4: ...bly soft and moist area to start 2 Gently insert the probe into the ground six inches is enough 3 Press the MSTR or TEST button on the front panel The meter will respond with the soil moisture reading 4 Press the TEMP button and the meter will show you the soil temperature 5 To read EC Salinity Meter only set the moisture calibration knob W upper right corner to the moisture reading from step 3 No...

Page 5: ... all times If you have very soft water EC below 200 ppm or 30 ms call technical service for calibration recommendations 2 While the probe is in the water push the MSTR button the only push button on the Moisture Meters While pushing down on the MSTR button turn the SET knob until the meter reads 100 clockwise increases the meter reading 3 The Moisture Meter is now ready to use MEASURING SOIL MOIST...

Page 6: ...t each location Make sure that the sensor has reached temperature equilibrium in the soil for two to three minutes before calibrating and recalibrate when temperature changes occur 1 Push the probe into the soil to the desired depth If the ground is too hard use an auger The sensing window and wings must be in contact with the soil for repeatability 2 Push the MSTR button The reading is the soil m...

Page 7: ...emperature 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...

Page 8: ...ensitive plants irrigate in the upper one half of the zone Use the lower end of the zone for mature and drought resistant plants Yellow Stress is apt to occur although most plants will survive if water condition is temporary Orange Damaging stress to most plants Red Permanent wilting and death is likely While the color coding should only be used as a reference it points out that plant stress not o...

Page 9: ...ill precipitate in the soil s free available water and will saturate out in this soil water mixture There is not enough water present for the salts to mix with the water evenly For this reason a sample of the soil must be taken then the moisture and salt content of the soil sample has to be determined and the results can be used to calibrate the EC readings of the EC 300 Salinity Multimeter PROBE ...

Page 10: ...er two to three minutes to reach temperature equilibrium 3 Compare the Multimeter meter reading to the bench top reading 4 Adjust the Multimeter calibration knob CAL left of the meter until the meters agree Second Method Air This will set your meter to a repeatable value but not to the accuracy which can be obtained by calibration with a bench top meter 1 Place the Multimeter in the sample and wai...

Page 11: ...inless Steel OVERALL LENGTH 36 Inches approx 91 44cm TEMPERATURE RANGE 4 44 to 65 55 deg C METER ACCURACY 1 of full scale POWER SOURCE 9 volt battery LIFE OF POWER SOURCE Approx 3 months WEIGHT Approx 5 pounds 2 26Kg SCALE MOISTURE 0 100 TEMPERATURE 0 199 deg F 0 92 77 deg C EC 2000 µS microSiemens ...

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