Spectrum Technologies Field Scout 2265FS Manual
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Spectrum Technologies Field Scout 2265FS Manual

Soil & water ec meter
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Field Scout
®
Soil & Water
EC Meter
Catalog #'s
2265FS, 2265FSTP
Spectrum
Technologies, Inc.

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Summary of Contents for Spectrum Technologies Field Scout 2265FS

  • Page 1 Field Scout ® Soil & Water EC Meter Catalog #’s 2265FS, 2265FSTP Spectrum Technologies, Inc.

  • Page 2: Table Of Contents

    Field Scout Soil & Water EC Meter. Please read this manual thoroughly before using your meter. For customer support or to place an order call Spectrum Technologies, Inc. 800-248-8873 or (815) 436-4440 between 7:30 am and 5:30 PM CST FAX at 815-436-4460 e-mail info@specmeters.com.

  • Page 3: Introduction

    Introduction Congratulations on the purchase of your Field Scout Soil & Water EC Meter. This instrument has been specifically designed for direct measurement of salts in soil media as well as water or nutrient solutions. This manual describes how to use your meter and keep it working accurately for many years.

  • Page 4: Ec Probe

    EC Probe Electrical conductivity (EC) is an important parame- ter in evaluating irrigation water and fertilizer solu- tions. Crops can be damaged if irrigated with water with a high conductivity. The quality of irrigation wa- ter has been classified into 5 separate categories (See Appendix 3, p.
  • Page 5 Because the EC readings are affected by moisture content, it is important that soil moisture content does not differ significantly between readings. An easy way to achieve this condition is by taking meas- urements approximately 30 to 60 minutes after an irrigation.

  • Page 6: Probe Calibration

    Probe Calibration The meter and probe are factory calibrated. How- ever, to ensure accuracy, the meter should be cali- brated at least once a month. The meter is cali- brated to an EC of 2764 µS/cm (2.76 mS/cm) cali- bration solution. Periodically, the calibration of the meter can be checked by immersing the sensor in this solution.
  • Page 7 2.) If necessary, clean the probe with alcohol to re- move any residual oils. Rinse the electrode tip in de- ionized (or distilled) water and then rinse it in the calibration standard. Switch unit on with the ON/OFF key. Place probe tip into a container of calibration standard (2.76 mS/cm).

  • Page 8: Meter Configuration

    Meter Configuration The digital reader for the Field Scout EC meter must be in Manual, 1-Point calibration mode to allow the meter to be calibrated with the 2.76 mS/cm calibrat- ing solution. The meter should also be set to the HI range mode.
  • Page 9 Range selection 1. Switch off the display. 2. Press and hold the F key then press the ON/ OFF button to switch on the display. Release the F key. The meter will go into Range selection mode and the lower display will show the current choice. The options are "AUTO", "PU", "LO", and "HI".

  • Page 10: Direct Soil Ec Readings

    Direct Soil EC Readings Greenhouse Soils The stainless steel probe of the Field Scout Soil & Water EC Meter can be inserted directly into the soil. By taking measurements at different soil depths, you can determine where the fertilizer is concentrated in the soil.

  • Page 11: Sme Measurement

    SME Measurement Saturated Media Extract (SME) Measurements Growth media used in most greenhouse operations is high in organic material and processed materials and low in mineral soil. These materials are easier to handle, are well aerated and have good moisture- holding properties, but have limited ability to retain nutrients.

  • Page 12: Liquid Measurement/Other Features

    Liquid measurement/ Other Features Water (Liquid) Measurements The Field Scout Soil & Water EC Meter can also measure the EC of liquids. Simply dip the electrode tip into the solution and wait for the reading to stabi- lize (a stable reading occurs when the readout has not changed for 3 seconds).

  • Page 13: Maintenance/Battery Replacement

    Maintenance/ Battery Replacement Maintenance: To improve performance and avoid transferring soil- borne diseases, clean the sensor tip by rinsing in al- cohol for 5 - 10 minutes. Replace all batteries if low battery indicator appears, or if readings are faint or unstable. Store the probe sensor dry.

  • Page 14: Probe/Tip Replacement

    Probe/Tip Replacement If the probe cannot be calibrated, or if it does not hold the calibration for a reasonable amount of time, the probe or tip must be replaced. Current versions of the 24” T-handle probe come with a replaceable tip (item 2266).
  • Page 15 Meter Housing Black nut Tan nut Strain relief Larger plastic assembly/O-ring socket Probe plug II. Attaching a direct-insert probe 1. If you are connecting an 8” probe, slide the tan nut over the probe and down the black cable. Skip to step 4. 2.

  • Page 16: Checking Probe Connection

    Checking Probe Connection If the meter is giving an out-of-range (OR) error mes- sage, it may be that the probe has come unplugged from the meter. The procedure for checking this is outlined below. 1. Remove the black nut from the strain-relief where the cable feeds into the meter.

  • Page 17: Specifications

    Specifications Readout LCD digital display EC Range 0.00 - 19.99 mS/cm Temperature 0 - 55 C (32 - 122 Range Accuracy EC: ±1% Full Scale Temperature: ±0.5 EC Resolution 0.01 mS/cm Calibration 1-point with 2.76 mS/cm standard Temperature Automatic from 0 to 50 Compensation Power Four LR44 1.5V alkaline...

  • Page 18: Preferred Ec Values For Selected Plants

    Appendix 1 Preferred EC Values for Selected Plants Plant EC (mS/cm) Asparagus 1.5 - 2.0 Watermelon 1.5 - 2.5 Carrot 1.5 - 2.0 Cabbage 2.0 - 3.0 Cucumber 2.0 - 3.0 Crysanthemum 1.5 - 2.5 Onion 1.5 - 2.0 Bean 2.0 - 2.5 Strawberry 2.0 - 2.5...
  • Page 19 Recommended EC Value (mS/cm) 1 to 2 Pour thru Poinsettia during 2.0 - 3.0 0.85 - 1.25 2.8 - 4.1 weeks 2-12. Pansies during 0.25 - 1.5 0.1 - 0.6 0.35 - 2.1 active growth. Geraniumus during 1.6 - 2.4 0.65 - 1.0 2.2 - 3.3 active growth.

  • Page 20: Interpreting Ec Readings From Turf Grass

    Appendix 2 Interpreting EC Readings From Turf Grass When taking direct-insert EC readings in turf grass with the Field Scout meter, it is often helpful to con- vert the measurement to the equivalent Saturated Media Extract (SME) value. This conversion will vary for different soils.
  • Page 21 Moderately Moderately Sensitive Sensitive Tolerant Tolerant < 3 mS/cm 3 - 6 mS/cm 6 - 10 mS/cm >10 mS/cm Annual Annual Bent cv. Bluegrass Ryegrass Seaside Alkaligrass Colonial Chewings Perennial Bluegrass Fescue Ryegrass Bermudagrass Kentucky Creeping Seashore Bluegrass Bentgrass Tall Fescue Paspalum Rough St.

  • Page 22: Classification Of Irrigation Water

    Appendix 3 Classification of Irrigation Water Excellent EC < 0.25 mS/cm Good 0.25 mS/cm < EC < 0.75 mS/cm Permissible 0.75 mS/cm < EC < 2.0 mS/cm Doubtful 2.0 mS/cm < EC < 3.0 mS/cm Unsuitable EC > 3.0 mS/cm Categories of irrigation water quality based on electrical conductivity.

  • Page 23: Classification Of Greenhouse Media

    Appendix 4 Classification of Greenhouse Media Electrical Conductivity (mS/cm) Comments 1 to 2 1 to 5 Very low levels. Indicates 0 - .74 0 - .25 0 - .12 very low nutrient status. Suitable range for seedlings .75 - 1.99 .25 - .75 .12 - .35 and salt sensitive plants.

  • Page 24: Diagnostic Messages

    Appendix 5 Diagnostic Messages Low Battery Indicator - Battery 100% full - Battery 50% full - Battery 25% full - Replace battery soon OR/UR (steady) - Measured EC or temperature value exceeds speci- fied maximum or minimum value. - Sensor electrodes have short circuited. - Sensor is not connected properly (see Checking Probe Connection p.

  • Page 25: Celsius To Fahrenheit Conversion Chart

    Appendix 6 Celsius to Fahrenheit Conversion Chart The Field Scout Soil & Water EC Meter gives tem- perature readings in Celsius. The conversion from Celsius to Fahrenheit is calculated with the following equation: F = 9/5 * C + 32 This information is also contained in the following table: 32.0...

  • Page 26: Warranty

    Warranty Warranty Warranty Warranty This product has been brought to you having passed severe quality control and inspections. Should any trouble occur during the course of normal use, the meter shall be repaired or replaced free of charge in accordance with the stipulations laid down herein.
  • Page 28 If for any reason you are not satisfied, or the meter has failed and you need to return the product for service, you will need to contact Spectrum Technologies, Inc. Before returning a failed unit, you must obtain a Returned Goods Authorization (RGA) number from Spectrum.

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Field scout 2265fstp

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