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AQUATERR INSTRUMENTS EC-300, Руководство пользователя

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AQUATERR INSTRUMENTS EC-300 Скачать руководство пользователя страница 9

 

9 

COMMOM PROBLEMS 

(Soil Salinity Measurements) 

 

PROBLEMS 
 
Battery indicator is on 
 
 
 
 
EC of soil matches EC of the water 
 
 
 
 
Salinity is lower than expected 
 
 
 
 

 
 
 
 
 
 
 
 
 

SOLUTIONS 
 
Replace the battery quickly. Remove the 
battery cover and replace with a 9 volt 
battery. 
 
 
Give more time for the soil to come to 
equilibrium. Do not test so soon after 
irrigation. 
 
 
Check soil moisture level. If the soil 
moisture level is below 65% the readings 
need to be calibrated with a soil sampling 
test.  Salt will 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 CARE 

 

It is important to keep the wings of the probe clean and free of dirt and buildup. It is suggested 
that every couple of weeks, the wings be polished with a plastic abrasive pad to remove 
buildup. When cleaning it is also important not to abrade the plastic area. 
 
 

Содержание EC-300

Страница 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 ...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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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