Kedida CT-6321 User Manual Download Page 3

                                                 

 

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http://www.kedida.com.cn/ 

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Backlight Mode

 

1. Press the ON/OFF key for 3 seconds, until the 

pH

display on the screen. 

2. Press HOLD key to select 

LED

on the screen.   

3. Then press CAL to confirm the backlight mode.   
4. Power off the meter to close the backlight mode. 

Hold Feature

 

Press 

HOLD

 to freeze the current reading, and „HOLD‟ will be appeared on the LCD. Press 

HOLD

 again to release the hold 

mode. 

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Restore factory defaults

 

1. If the meter is out of order, Press the HOLD key until the 

CLR

display on the screen, release the HOLD key and the 

factory setting is ready. 

2. The meter needs to recalibrate for pH measurement and Conductivity after the factory setting. 

Automatic temperature compensation (ATC)

 

 

The product is capable of measuring with automatic temperature compensation when “ATC” displays on the screen. 

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  Interchangeable

 

The default mode is 

, press CAL key to switch to 

Calibration

  

 

pH calibration 

Prepare  for 4 measuring  glasses  to  calibration, 1 measuring  glass for water  and 3 measuring  glasses for  pH  buffer 

solution(pH4.0, pH6.8, pH9.1). 

Please be aware of the order of the pH buffer solutions:   

First: pH6.8, second: pH4.0, third: pH9.1 

Take the pH 6.8 calibration for example: 

STEPS 

OPRATIONS 

Insert the electrode into the distilled water or purified water for 10– 30 minutes to activate before press 

ON/OFF key to turn the meter on. 

Place the electrode into the measuring glass of water to clean, and wipe it up by tissue 

Place the electrode into the pH6.8 buffer solution, The pH value will be updated until a stable reading is 

reached(The data maybe not accurate if the electrode is not be activated) 

press CAL key for 3 seconds

 

until the text „CAL‟ appear on the display, and release the key 

Summary of Contents for CT-6321

Page 1: ...ectrode into the distilled water or purified water for 5 30 minutes to activate before use FEATURES Water proof and protection Data hold function for freezing the desired value Pen type digital pH Conductivity meter all in one Electrode is included easy for general purpose application LCD display with pH and temp OR Conductivity and temp Auto power off in 5 minutes Interchangeable Compact size lig...

Page 2: ... Weight 90 g included electrode OPERATING INSTRUCTION Pull out the cap before using Do not Screw it Power ON OFF Feature 1 Press ON OFF key to turn the Meter on and off 2 The Meter will shut off automatically if there is no operation in 5 minutes Self Checking Feature Executing the function automatically after the meter is power on each time 1 Press the ON OFF key to turn on the meter Self Checkin...

Page 3: ...ure compensation ATC The product is capable of measuring with automatic temperature compensation when ATC displays on the screen Interchangeable The default mode is press CAL key to switch to Calibration pH calibration Prepare for 4 measuring glasses to calibration 1 measuring glass for water and 3 measuring glasses for pH buffer solution pH4 0 pH6 8 pH9 1 Please be aware of the order of the pH bu...

Page 4: ... activated 4 press CAL key for 3 seconds until the text CAL appear on the display and release the key 5 Text SA will showing in the LCD denote that the current calibration result is saved 6 The text END will be displayed at the end The meter is ready for conductivity measurement The steps are same like that if the buffers are 1413uS cm NOTE The calibration will be failed if there is no SA on the s...

Page 5: ...fer solution Especially pay attention to the Electrode fixed collar if it is loosen when calibration it may cause the buffer solution enter the inside of the meter How to make pH buffer solution There are 3 pH buffer powder supplied with the meter when you buy them each powder should be Fully dissolved in water 250ml DO NOT use the metal containers Take the formulation of pH 6 8 buffer solution fo...

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