Kedida pH & Oxidation Reduction Potential (ORP) Meter

Rs 10,500.00

Description

Description

2 in 1 Water PH tester & ORP Gauge 0.0-14.0pH 500mV Oxidation-Reduction Potential

CT-6821 Kedida brand both pH meter & ORP in one.

CT-6821 pen-type pH & ORP meter using high-performance CPU chip, high-precision AD conversion technology and SMT technology, is a versatile, intelligent instruments. It can store, calculate and compensate for all parameters measured PH value and ORP value. Clear display, easy operation and accurate test performance has a good price. PH value monitoring can be widely used in chemical, metallurgy, environmental protection, pharmaceutical, biochemical, food and water and other solutions. PH & ORP is the best choice test.

Product Features:
Instrument shell waterproof design, LCD display. Small, portable, ready to measure, the use of more convenient. Low power consumption, high accuracy, wide measurement range, the electrode can be replaced.

Technical Specifications:

Measuring range
0.0 ~ 14.0pH; ± 500mV
Accuracy ± 0.1pH; ± 5mV
Resolution 0.1pH; 1mV
Automatic Temperature Compensation 0 ~ 50
Operating temperature 0 ~ 50
3-point automatic calibration correction (pH4.0; 6.8; 9.1)
Factory calibration, used directly
There are automatic shutdown
Backlight function
Tip a low voltage
C / F automatic conversion have
Maintain the function
Dual display pH and temperature display;
ORP and temperature dual display;
Battery 6V (4 * AG13 button batteries) in include (some address not include , )
Volume 188X38mm
Weight 82g

What’s Included:
CT-6821 Kedida pH & ORP Tester Pen
pH (4.01; 6.86; 9.18) 3 packet buffer / set;
A manual (english and chinese manual )
Please Note: ORP calibration solution is not include.

Important:

  1. Soak the electrode in distilled water or purified water for 5 – 30 minutes to activate before first use.
  2. Please use the standard buffer solutions for pH calibration, and operate it by the calibration steps shown above. DO NOT press CAL key in NON calibration mode, it may cause the calibration Error.
  3. The pH buffer powder should be fully dissolved in water (250ml).

Operation:

Instrument self-test function (by default every time the instrument is switched to perform this step):

1, the tap “ON / OFF” key to boot, the instrument immediately enters a self-test mode (full-display LCD);
2, then the LCD display will show the current meter Model: 6821;
3. Finally, the instrument into the normal pH or ORP measuring mode.
4, instrument factory settings, the default is “pH” mode
5, the instrument has a memory function, re-boot the instrument will work in the last measurement mode

(Eg: last ORP value is detected, and then turn the LCD display or ORP measurement mode) pH measurement mode:
(In the boot state)
1, press “ON / OFF” button for about 3 seconds, until the LCD display pH characters;
2, and then, and then click the “CAL” button to confirm, pH function successfully set;
3, when the instrument has entered the pH measurement mode, normal pH measurement;
ORP measurement mode 🙁 in the boot state)
1, press “ON / OFF” button for about 3 seconds, until the LCD display pH characters;
2, and then click the “HOLD” key to select until the ORP character;
3, and then, and then click the “CAL” button to confirm, ORP function successfully set;
4. The instrument has entered ORP measurement mode, normal ORP measurement backlight function:
(In the boot state)
1, press “ON / OFF” button for about 3 seconds, until the LCD display pH characters;
2, and then click the “HOLD” key to select until LCD display LED characters;
3, followed by tap “CAL” to confirm and open the backlight function successfully set; To turn this feature off, just after the shutdown, then boot.

Automatic shutdown after 5 minutes without any key operation.

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.

2.2. 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- Checking programme will be auto-started with Full screen display.

2. the type of the meter will be displayed: 6821, then , the meter is ready for use.

3. the default mode is pH mode after the date of the manufacture.

4. The test mode will be same with the previous use.

*pH Mode

1. Press the ON/OFF key for 3 seconds, until the “pH”display on the screen.

2. Then press CAL to confirm, and the meter is ready to test in pH mode.

* ORP Mode

1. Press the ON/OFF key for 3 seconds, until the “pH”display on the screen.

2. Press HOLD key to select “ORP”on the screen.

3. Then press CAL to confirm, and the meter is ready to test in ORP mode.

* 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.

*Restore factory defaults

1. If the meter is out of order, Press the HOLD key for 10 seconds, until the “CLR”display on the screen, release the HOLD key and the factory setting is ready.

2. The meter needs to recalibration for pH measurement after the factory setting, but can be used directly for ORP measurement.

* Automatic temperature 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

l 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

Overrage Reminder

There will be “1- – .-”on the display if the pH value is under 0 or over 14;

There will be “1- – .-”on the display if the ORP value is under -500mV or over +500mV;

There will be ‘L’ or ‘H’ on the temp. display area if the temperature is under 0℃ or over 50℃.

*Low Voltage Reminder

The battery sign will be appeared on the display when battery replacement is needed.

MAINTENANCE

Keep the glass electrode clean, and cover with the protection cap when not use. Be aware of the damage of the electrode when use it. Products should be kept and stored in a cool, dry place that away from direct sunlight.

 

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 for example:

1.     Prepare a plastic or glass container with the volume should be equal or greater than 250ml, pour the pH buffer powder(2 small bags in the pH 6.86 green bag) into the container.

2.     Fully dissolve the powder with 250ml distilled water.

Tag the three buffer solutions when finish.(time, and pH value)

The buffer solutions (250ml) can be used several times by divided into portions which should be kept in a cool and dry place(20℃-25℃). Never reuse the used portion. The electrode should be fully covered by buffer solution when calibration.

 

Oxidation Reduction Potential, Redox, ORP Tester in Sri Lanka

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