levenhuk Wezzer PH20 Soil Meter User Manual

June 3, 2024
levenhuk

levenhuk Wezzer PH20 Soil Meter

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Levenhuk Wezzer PH20 Soil Meter

  1. pH/°C switch
  2. Power button
  3. °C/°F / OFF button
  4. Light intensity
  5. Temperature
  6. Moisture indication and pH level

Getting started

Open the battery compartment cover and insert the battery according to the correct polarity. Close the cover.

Using

Press (2) to turn the device on. Press (3) to change the temperature unit (Celsius, °C / Fahrenheit, °F). Press (3) for 5 seconds to turn the device off.

Light intensity measurement
Press (2) to turn the device on. Position the device so that its upper point is directed toward the light source. Do not block the light or create shade over the light sensor in order for the sensor to work correctly. The value will be displayed on the LCD screen.

pH measurement
Slide the pH/°C switch to the pH position. Press (2) to turn the device on. Insert the probe into the soil gently in order to not damage the roots of the plant. If the soil is too dry to measure the pH level, sprinkle some water onto the soil and then repeat the measurement in 30 minutes. The value will be displayed on the LCD screen.

Soil temperature measurement
Slide the pH/°C switch to the °C position. Insert the probe into the soil gently in order to not damage the roots of the plant. The value will be displayed on the LCD screen.

Light intensity indication

LOW– LOW LOW+ NOR- NOR NOR+ HGH– HGH HGH+
Very low Low light A little low Light Normal light Light A little high
High light Very high
light intensity intensity light intensity intensity is intensity
intensity is light intensity intensity light intensity
      lower than   higher than    
      normal   normal    

pH value indication

Acidic environment Neutral environment Alkaline environment
Low 3.5 4.0

Soil temperature value indication

DRY+ DRY NOR WET WET+
Very dry soil Dry soil Normal soil Wet soil Very wet soil

Specifications

  • Temperature measurement range –9… +50°C (15… 122°F)
  • pH measurement range 3.5–9.0
  • Operating temperature range +5… 40°C (41… 104°F)
  • Power supply 9V battery

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Care and maintenance

Take the necessary precautions when using the device with children or others who have not read or who do not fully understand these instructions. Make sure that the air flow channels at the back of the device are not blocked or covered. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Store the device in a dry cool place. Only use accessories and spare parts for this device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts! If a part of the device or battery is swallowed, seek medical attention immediately. Children should use the device under adult supervision only.

Battery safety instructions

Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.

Levenhuk International Lifetime Warranty

All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions
are met.

For further details, please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.

References

Read User Manual Online (PDF format)

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