PH220A EXTECH [Extech Instruments Corporation.], PH220A Datasheet
PH220A
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PH220A Summary of contents
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... User Guide Waterproof Palm pH Meter Model PH220A 7.00 Introduction Congratulations on your purchase of the Extech PH220 waterproof pH/mV meter. This microprocessor-based device with tactile push-buttons is battery operated and ideal for field use. The PH220 simultaneously displays pH and temperature. The rubber holster which protects the meter has a magnetic backing for convenient mounting. The built-in memory (25 readings) allows STORE, RECALL, and CLEAR functionality ...
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Specifications mV (ORP) Temperature pH Temperature Compensation Power Display Over-range or open indication Displays "HHH" for over-range or open input conditions pH Calibration points Auto Power OFF Low Battery Indication Dimensions / Weight Accessories supplied with kit Range (Resolution) ± ...
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Meter Description 1. Battery Compartment (under holster) 2. Rubber Holster 3. LCD Display 4. Function buttons 5. Electrode input Basic Display Description 1. Measurement value 2. Battery status 3. Units of measure 4. Temperature units 5. Solution temperature Note that ...
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Calibration (pH only) The sensitivity electrode degrades over time very important to frequently calibrate the meter to the electrode. pH electrodes can be thought of as batteries in that they run down with time and ...
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Measuring pH Electrodes should always be rinsed before and between samples with distilled or DI (de-ionized) water to remove all traces of storage solution, process media, or previous test solution. 1. Connect the pH electrode to the meter. 2. Turn ...
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Storing and Recalling Readings This instrument has the ability to store measurement readings later time the readings can be recalled and viewed. Readings are saved even after the instrument has been turned off. STORE Readings ...
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Battery Replacement The 9 volt alkaline battery that powers the instrument requires replacing when all battery icon ‘fill bars’ are depleted. To replace the battery follow the steps below: 1. Disconnect the electrode from the instrument. 2. Remove the instrument’s ...
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Electrode Maintenance and Troubleshooting Most pH measurement difficulties are caused by the electrode. Careful handling and proper storage of the electrode will increase measurement accuracy and electrode life. Electrodes should be rinsed to remove all traces of storage solution, process ...
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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 Service Department for information on calibration services available for this product. Extech recommends that ...