说明

• Product DescriptionMeasuring range0 - 1999 mg/Kg (mg/l)DimensionØ50.5 x 250 mmAccuracy±2% F.S.Power supplyDC 9V((9V280 / 6F22 Ni-MH rechargeable battery)Feature:Auto-switch-off in about 8 minutesResolution1 mg/Kg (mg/l)CalibrationFactory ordinary calibratedWorking temp5-45 ° C(41-113 ° F)/ATCDisplayLCD with again light;Probe length140 mmSpecifications 1.Quickly check the soil instantaneous N content. 2.LCD show 3.Easy operation, little need to convert soil into liquid, insert instantly into soil and you will get the check result in seconds. 4.rechargeable baterry 5.High accuracy Usage 1. Take off the protective cap from metal probe. 2. Press OFF/ON button. Tester exhibits 0. 3. Quick testing: Water the soil with distilled water earlier than testing. Make sure the water can go 10 cm deep the least. Best humidity is 70%-80%. Insert the metallic probe into soil vertically and clockwisely, to about 6-8 cm deep. Make yes the soil has thorough touch with steel probe. After about 6 seconds, the tester will exhibit the measured value.Tightness of soil will impression measuring result. Multiple tests at the same and various features should be performed and take the typical as last result. ‚accurate testing:Use a 200ml beaker container, blend dried soil with distilled water on the ,stir and make it right into a mud form. Put the steel probe into the mud about 6-8CM deep. About 6 seconds, the tester will exhibit the measured value. 4. Wipe the metal probe with towel or tissue paper after every single test. Make it clean and dry, until the display shows 0.Waring 1. Do now not use the tester to measure liquid. Do not measure dry and difficult soil. Do now not depart the metal sensor inthe wet soil lengthy (take out directly after every single test) . Or it'll harm the metal sensor and shorten the lifespan. Wipe the steel sensor clear and dry after every single test. 2. The tester is manufacturing facility calibrated. No want for calibration for users. 3. If the exhibit fades, jumps, energy delivery may be no longer enough. Replace the battery. 4. When shop the tester, put the protective cap onto the metallic probe. Avoid touching steel probe with hands, keep away from scratch with demanding objects. Keep the tester in clean and dry environment. Keep it away from magnetics. 5. Measuring units: 1mg/Kg = 1mg/l =1ug/ml=1ppm

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