pH Waterproof Meter
Contents
1. 2 Insert the electrode into the sample 3 Press the PWR key to turn the meter on and slowly stir until the reading settles The decimal point will blink while the meter is measuring pH Calibration 1 2 or 3 points A two point calibration with a buffer of 7 plus 4 or 10 whichever is nearest to the expected sample value is always recommended A one point calibration choose the value closest to the expected sample value is also valid For best accuracy always calibrate at the sample temperature 1 Place the electrode into a buffer solution 4 7 or 10 and momentarily press the CAL key Note pH 7 should be calibrated first then 4 and or 10 pH 2 If meter successfully recognizes the solution CAL and the pH value will appear on the display in two seconds Note If the solution is more than 1pH off from the 4 7 or 10pH standard the meter will assume an error and abort the calibration EN will be displayed for one second and then the meter will return to normal operation a If the calibration buffer is another value other than 4 7 or 10 such as 4 1 press the HLD A button to adjust the value to the correct reading The adjustable range for 4pH is from 3 5 to 4 5 for 7pH is from 6 5 to 7 5 For 10pH is from 9 5 to 10 5 4 When calibration is complete the meter automatically saves the value displays SA and returns to normal operation mode after displaying EN 5 For a two or three point calibr2. User Guide EXTECH INSTRUMENTS pH Waterproof Meter Models PH60 Description Operation Front Panel Controls Battery compartment cap LCD Display HOLD A button PWR On Off button Electrode CAL button Electrode cap with sponge ON oar WD S Protective cap Overview C 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 and reports the hydrogen ion activity of a solution which is an indicator of 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 near 7 are neutral Getting Started e Before first use or after extended storage soak the electrode with its cap removed in a pH 4 solution for at least 30 minutes e White KCL crystals may be present in the cap These crystals will dissolve in the soak or they can be simply rinsed with tap water e Always calibrate close to the expected measurement value e A sponge is located in the electrode protective cap Keep this sponge soaked with a pH 4 solution to preserve Electrode life during storage e Unless directed otherwise a daily two point calibration is recommended to maintain accuracy and to verify the condition of the meter and electrode pH Measurements 1 Remove the protective cap and the electrode cap
3. ation repeat steps 1 4 6 Note Always turn the meter off and then on before calibrating to allow sufficient time to complete the calibrations during one power cycle Changing the Displayed Temperature Units With the meter OFF press and hold the PWR and CAL buttons until F or C appears in the display Press the HLD button to toggle between them Select the preferred unit and then press CAL to save SA will appear in the display for one second and then return to normal operation Data Hold Momentarily press the HLD A button to freeze the current reading The HOLD display icon will appear along with the held reading Momentarily press the HLD A key to return to normal operation Auto Power Off Disable The meter will shut off after 20 minutes to save battery life if no buttons are pressed To disable this feature with the meter off press and hold the PWR and HLD A buttons simultaneously until an n appears for 1 second on the display Release the buttons Note Turning the meter off will reactivate the Auto Power Off feature Battery Replacement 1 Remove the two screws from the battery compartment cap 2 Replace the four 4 LR44 batteries observing polarity 3 Replace the battery compartment cap and secure with the screws You as the end user are legally bound Battery ordinance to return all used batteries and accumulators disposal in the household garbage is prohibited You can hand over your used batte
4. ries accumulators at collection points in your community or wherever batteries E accumulators are sold Disposal Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle Specifications Model PH60 Display Dual LCD 0 0 to 14 0 0 1pH 0 2pH 0 to 50 C 32 to 122 F PH Range and Accuracy PH resolution accuracy Temperature Range Temperature 0 5 1 C 1 8 F resolution accuracy Automatic Temperature Yes Compensation Waterproof Meets IP67 Power Four 4 LR44 button batteries Auto power off Dimensions After 20 minutes of inactivity 152x37x24mm 6x1 5x0 9 65g 2 302 Copyright 2014 FLIR Systems Inc All rights reserved including the right of reproduction in whole or in part in any form ISO 9001 Certified www extech com PH60 EU EN V1 2 3 14
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