1 Brief Introduction
Thank you for purchasing Oakton Instruments PH550 Benchtop pH meter.
This instrument is an outstanding combination of advanced electronics design and sensor technology. It’s the
most economical choice of a reliable lab-grade benchtop pH meter. Please read this maual carefully to
properly use and maintain the meter. Oakton Instruments reserves the right to update the contents of this
manual without giving prior notices.
1.1 Main Features
• The meter has a built-in microprocessor chip, which enables intelligent functions such as automatic
calibration, automatic temperature compensation, data storage, parameter setup, max/min reading
display, etc.
• The advanced automatic calibration mode has calibration guide and self-diganosis functions,
automatically recognizing standard buffer solutions (USA or NIST series).
• The advanced digital processing technology intelligently improves the meter’s response time and
measuring accuracy with stable reading display mode available.
• The kit comes with a 3-in-1 combination pH Electrode, measuring pH and temperature simultaneously.
• IP54 dustproof and spillproof. Connectors are protected by silicone seal caps, effectively ensuring the
reliability and service life of the meter under harsh environment.
• Detachable electrode holder and 3 bottles of pH buffer solutions come with the kit for convenient use.
2 Technical Specifications
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