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User Manual
Oyster-10 pH/mV/Temperature Meter
Introduction
Congratulations on your purchase of Extech's Oyster Series splash-proof meter. This
microprocessor-based device with tactile buttons simultaneously displays pH or mV and
o
o
Temperature (
C/
F selectable). 25 labeled readings can be conveniently stored for later
recall. The Oyster 10 is battery operated, portable, and includes a hinged display that
can be adjusted to any viewing angle. In addition, the neck-strap offers hands-free
operation. Advanced features include diagnostic displays, MIN/MAX readings, audible
alerts, 5-point buffer recognition, & Auto/Manual temperature compensation. This meter
is shipped fully tested and calibrated and, with proper use, will provide years of reliable
service.
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Related Manuals for FLIR Extech Instruments Oyster-10
Summary of Contents for FLIR Extech Instruments Oyster-10
- Page 1 User Manual Oyster-10 pH/mV/Temperature Meter Introduction Congratulations on your purchase of Extech's Oyster Series splash-proof meter. This microprocessor-based device with tactile buttons simultaneously displays pH or mV and Temperature ( F selectable). 25 labeled readings can be conveniently stored for later recall.
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Page 2: Specifications
Specifications Range (Resolution) Accuracy ± 1000 mV DC (1 mV) + 2mV Temperature 32.0 to 212.0 F (0.0 to 99.9 + 0.8 F (0.5 0.00 to 14.00pH (0.01pH) + 0.02pH Temperature Compensation 32 to 212 F (0-100 C) AUTO or MANUAL modes Power 9 volt battery or optional AC adapter Display... -
Page 3: Calibration And Operation
pH Overview pH is a unit of measure (ranging from 0 to 14pH) indicating the degree of acidity or alkalinity of a solution. pH tests are the most commonly performed measurements in water analysis, using the hydrogen ion activity of a solution to determine acidity or alkalinity. Solutions with a pH less than 7 are considered acidic, solutions with a pH higher than 7 are known as bases, and solutions with a pH of exactly 7 are considered neutral. - Page 4 pH Measurement and Temperature Compensation 1. Use the pH/mV button to select the pH mode. The unit of measure appears on the LCD. 2. Connect the pH electrode to the meter and place the sensor end in the solution under test.
- Page 5 MAX/MIN Display 1. The meter memorizes the highest (MAX) and lowest (MIN) readings when prompted. 2. Press and hold the MAX/MIN button until both the MAX and MIN icons appear on the LCD. The meter will now begin keeping track of the MIN and MAX readings. 3.
- Page 6 pH Electrode Model 60120B Operation The Following information applies to the Epoxy Body, Sealed Reference Combination pH Electrode Model 60120B. Electrode Considerations 1. The 60120B pH electrode is recessed in the polymer body allowing it to rest against the bottom of a beaker without damaging the glass bulb. This eliminates the need for electrode holders and allows the probe to be used as a stirring rod.
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Page 7: Maintenance And Troubleshooting
Maintenance and Troubleshooting Electrode Cleaning The type of electrode coating that occurs over time will determine the cleaning method. Soft coatings can be removed by vigorous stirring or by using a squirt bottle. Organic chemical coating (hard coatings) should be chemically removed. Only in extreme cases should the bulb be cleaned mechanically. - Page 8 Troubleshooting an Electrode Problem Symptom Cause Recommended Solution Long response time or Clogged Junction Soak in 4.07 M Potassium Chloride reading drift (KCl) @ 60 C for 30 minutes. Replace electrode if necessary. Strong Alkaline Soak in 0.1 M HCL overnight measurement Deteriorated Gel layer of Replace electrode...
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Page 9: Calibration And Repair Services
Calibration and Repair Services Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Care Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy.