background image

Fig. K

7

6. There are 3 calibration points 4.00, 7.00
    and 10.00, after completing the last 
    cablibration point 10.00, the meter 
    return to the normal mode after saving
    automatically (See Fig.K) .LCD shows
    "

End

 " for a second (See Fig. IA) . 

ATC

CAL

C

C

ATC

CAL

C

C

ATC

C

C

Fig. I

Fig. IA

Fig. J

  .

7. If want to calibrate "7.00" first before 
    "4.00", pressing           to select the
    desired calibration point. "

CAL

" is not 

    flashing while changing the value.

8. 

The adjustable cal . 

    point range for 4.00 pH is from 3.50 to 
    4.50. Hold  the          cycle from  3.5 to 
    4.5 then 3.5 again. Release the key 
    when desired point is selected. The 
    adjustable cal. range for pH 7.00 is 
    6.50~7.50. For 10.00 pH range, there 
    are 9.50~10.5.

9. Rinse the probe with de-ionized water 
    or a rinse solution (tap water...) after
    each measurement to lengthen the
    meter's life.  

The meter designs with an adjustable

    calibration point to meet different 
    solution standard. 

CAL

HOLD

UNIT

Содержание 8690

Страница 1: ...OPERATION MANUAL Model 8690 PEN TYPE PH METER DESIGN PATENTED US D453 905S ...

Страница 2: ...LCD segments when it is first turned on for approx 1 seconds Congratulations on your purchase of the unique shape of pH pen model 8690 the meter features dual display pH with ATC Automatic Temperature Compensation only one touch for o auto calibration easy read by 45 angle the pH electrode module is replaceable Read completely before using the meter file and keep this manual for future reference R...

Страница 3: ...o o o 3 C F Toggles display data from C to o o o F or F to C 4 pH Electrode 5 Cover of the pH pen 6 Glass bulb protect by 7 Pocket clip 8 CAL Calibration indicator 9 ATC Auto Temp Compensation 10 Tab for releasing from the lock 11 HOLD UNIT selectable button 12 CAL button 13 Power ON OFF button 2 5 1 2 3 4 6 7 8 9 10 11 12 13 CA L H O L D U N IT 8690 W ATERPRO O F pH ATC O C ...

Страница 4: ...wet See below figure 2 Dip the electrode into the test solution and stir it to get a stable reading 3 A small dot is flashing while the meter is working the screen shows pH value and solution temperature o o with unit C or F See Fig G 4 Press HOLD button to freeze the current reading The small dot is not flashing after pressing the button 5 Turn off by pressing button 6 Todisable the sleep mode be...

Страница 5: ...d after power off The three keys of the meter enable user to select the modes they prefer The display will default to the mode last used For your convenience the meter defaults to the setting used during the last operation The following content lists the modes of operation that can be activated by pressing the keys indicated Fig B Fig A Turns instrument on Default setting and off See Fig B When th...

Страница 6: ...o o Press to select C or F Fig D Then press button to store the unit the display shows SA for one second See Fig J and then return to the normal mode 5 Press this key to increase the value when meter is in pH calibration mode Release the key after selecting the correct calibration value Fig E The meter is capable of taking measure ments with Automatic Temperature Compensation ATC shows under CAL a...

Страница 7: ...ond then skip to next calibration point without pressing any button 5 At the moment the screen shows 7 00 Fig H CAL is not flashing until you remove the meter to the correct calibra tion buffer CAL again flash repeatedly about another 30 seconds then save the calibration point automatically SA shows for 1 second and skip to 10 00 remember to use the correct buffer CAL is flashing again See Fig I A...

Страница 8: ...desired calibration point CAL is not flashing while changing the value 8 The adjustable cal point range for 4 00 pH is from 3 50 to 4 50 Hold the cycle from 3 5 to 4 5 then 3 5 again Release the key when desired point is selected The adjustable cal range for pH 7 00 is 6 50 7 50 For 10 00 pH range there are 9 50 10 5 9 Rinse the probe with de ionized water or a rinse solution tap water after each ...

Страница 9: ...y are flashing The meter will not power on Even if the battery was recently replaced check its voltage level if you get no response from your instrument To replace the battery 1 Remove the pH electrode module as above procedure See Fig L 2 Replace the old batteries with two new button cell CR2032 See Fig LA 3 Observe polarity and put back the top unit to the electrode module as above procedure too...

Страница 10: ...for lasting pH electrode life Please always keep the pH glass bulb wet by using the cap to protect and store the electrode Slow response Clean probe by immersing the electrode in tap water for 10 15 minutes then thoroughly rinse with distilled water or use a general purpose electrode cleaner Out of pH range too acidic or too alkaline Fig M It is normal when the electrode is not immersed in the wat...

Страница 11: ... 01 7 00 10 01 12 45 NIST buffers pH 1 68 4 01 6 86 9 18 12 45 DIN buffers pH 1 09 3 06 4 65 6 79 9 23 12 75 MATERIAL SUPPLIED This package contains pH 0 00 14 00 0 01pH 42 x 149 x 37 mm Display 4 digits Dimension Resolution Range Accuracy 0 05pH at 25 C o Temperature compensation from o 0 to 50 C Accuracy 0 3 C o OPTIONAL ACCESSORY Replaceable pH electrode module Model VZ86P9AZ Pouch Model VM6869...

Страница 12: ...mage resulting from leaking batteries Proof of purchase is required for warranty repairs Warranty is void if the meter has been opened RETURN AUTHORIZATION Authorization must be obtained from the supplier before returning items for any reason When requiring a RA Return Authorization please include data regarding the defective reason the meters are to be returned along with good packing to prevent ...

Страница 13: ...hermometer Anemometer Sound Level Meter Air Flow meter Infrared Thermometer K type Thermometer K J T type Thermometer K J T R S E type Thermometer pH Meter Conductivity Meter T D S Meter D O Meter Saccharimeter Manometer Tacho Meter Lux Light Meter Moisture Meter Data logger Temp RH transmitter Wireless Transmitter 2006 11 modified ...

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