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                                                   PH220-en-US_v3.5   3/21

 

 

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 there are other more specialized displays discussed later in the appropriate sections of 
this manual. 
 

Order of Operations 

1.

 

Calibrate the instrument as described in the Calibration section. 

2.

 

Select the temperature units of measure as explained in the pH measurement instructions.  

3.

 

Carefully follow all step by step instructions and electrode cleaning/rinsing 
recommendations. Slight deviations in procedures can significantly affect test results. 

Содержание PH220

Страница 1: ...USER MANUAL Waterproof Palm pH Meter Model PH220...

Страница 2: ...y does not include pH buffer temperature coefficient Note 2 Accuracy specified from 0 02pH to 13 98pH Temperature Compensation 32 to 194oF 0 to 90oC Automatic ATC Power 9 volt alkaline battery Display...

Страница 3: ...perature Note that there are other more specialized displays discussed later in the appropriate sections of this manual Order of Operations 1 Calibrate the instrument as described in the Calibration s...

Страница 4: ...ibrated at least once each day pH Calibration Procedure 1 Place the electrode into a 7 00 pH buffer solution Press and hold the CAL button until CAL appears in the display 2 The instrument automatical...

Страница 5: ...also display when the electrode is disconnected 8 When the test is complete rinse the electrode with distilled or deionized water Automatic Temperature Compensation ATC The millivolt output of a pH el...

Страница 6: ...the recall mode is accessed 3 While in the RECALL mode use the STORE RECALL button to scroll through the stored readings The most recent readings will show first LAST IN FIRST OUT 4 Press and hold th...

Страница 7: ...the top of the meter ensure that the electrode is disconnected 3 Pry the battery compartment up from the top of the meter using a screwdriver or coin at one of the two indentations see diagram 4 Repl...

Страница 8: ...60oC for 30 minutes Strong Alkaline measurement Soak in 0 1 M HCL overnight Deteriorated Gel layer Replace electrode Protein coating on electrode surface Soak in 1 gm Pepsin dissolved in 100ml of 0 1...

Страница 9: ...bration for most of our products Contact us for information on calibration and repair availability refer to the contact information below Annual calibrations should be performed to verify meter perfor...

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