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Summary of Contents for ELMETRON CP-411
- Page 1 WATERPROOF pH-METER CP-411 USER‘S MANUAL...
- Page 3 USER‘S MANULAL WATERPROOF pH-METER CP-411 Before starting work please read the instruction carefully.
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Page 5: Table Of Contents
CONTENTS INTRODUCTION 1. Exploitation notices 2. Characteristics of the meter 3. What is the meter designed for 4. The outside view 5. Switching the meter on and off 6. Preparation to work 6.1. Choosing the measuring function 6.2. Choosing the kind of temperature compensation pH MEASUREMENT 7. -
Page 7: Introduction
- 1 - INTRODUCTION... - Page 8 - 2 - User‘s manual for CP-411 pH meter v5.30...
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Page 9: Exploitation Notices
- 3 - 1. Exploitation notices Dear User! We present you a device distinguished by accuracy according to the technical data and by a high stability of the displayed results. We believe that the measurements will not cause you any trouble and that the meter will operate without any inconvenience. -
Page 10: Characteristics Of The Meter
- 4 - 2. Characteristics of the meter The CP-411 pH meter belongs to the newest generation of measuring devices which offer wide range of additional functions. The meter ensures high accuracy and repeatability of the readings and is easy in use. Two kinds of power source: battery and power adapter enable work in the field and long- lasting measurements in the laboratory. -
Page 11: What Is The Meter Designed For
Waterproof housing enables work in difficult weather conditions or in humid environment. The CP-411 pH meter is being used in food, chemical, pharmaceutical and power industries, in water treatment stations, laboratories, agriculture, universities, scientific laboratories etc. -
Page 12: The Outside View
In the upper wall of the meter there are inputs placed with the symbols given below: F - BNC-50 for connecting combination pH electrode, measuring pH electrode or redox electrode; t - Chinch input for connecting the temperature probe; P - power adapter input. User‘s manual for CP-411 pH meter v5.30... - Page 13 - 7 - Pic. 1.
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Page 14: Switching The Meter On And Off
The meter is switched off by pressing the button. To save the battery, the meter switches automatically off after 10 minutes of non-use. This function is automatically deactivated when working with power adapter or during calibration. User‘s manual for CP-411 pH meter v5.30... -
Page 15: Preparation To Work
Chinch temperature input (t); switch the meter on by pressing the button. 6.1. Choosing the measuring function The CP-411 pH meter may work in the pH or redox potential measurement mode. In order to switch the measuring function: - press the button, until the lower row of the display shows the symbol and the upper row –... -
Page 16: Choosing The Kind Of Temperature Compensation
6.2.1. Entering the temperature value for manual temperature compensation To introduce the temperature value for manual temperature compensation: - disconnect the temperature probe (the symbol disappears); - with the buttons enter the chosen temperature value. User‘s manual for CP-411 pH meter v5.30... -
Page 17: Ph Measurement
- 11 - II. pH MEASUREMENT... - Page 18 - 12 - User‘s manual for CP-411 pH meter v5.30...
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Page 19: Preparation Of The Ph Electrode
- 13 - 7. Preparation of the pH electrode The electrode should be prepared to work according to the manufacturer’s instructions. If the instructions weren’t given please follow the steps: - new electrode should be put into saturated KCl solution for about 5 hours: - before starting measurements, protecting rings (if used in this kind of electrode) should be removed. -
Page 20: Calibration
2 buffer solutions: 4.00 and 7.00 pH is recommended, in case of alkali measurements calibration in 7.00 and 10.00 pH buffers is advisable. In CP-411 the slope of the electrode is approximated in segments between the calibration points. Starting the calibration process irreversibly erases the calibration data stored in the memory. -
Page 21: Calibration With Automatic Temperature Compensation
- 15 - 8.1. Calibration with automatic temperature compensation After preparing the meter to calibration according to the chapter 6, in the pH measurement function: a. press and hold the button till the moment of appearance of the CAL symbol on the display (Pic. 5), the previous parameters of calibration are now deleted;... -
Page 22: Calibration With Manual Temperature Compensation
To check, in the pH measurement mode: - press the button two times, in the lower display row the symbol willl apear, the upper row will show the electrode’s zero offset (Pic. 7); Pic. 7 User‘s manual for CP-411 pH meter v5.30... - Page 23 - 17 - - press the button once again, in the lower row the symbol will be displayed and the percentage value of the electrode condition - in the upper row. (Pic. 8); Pic. 8 In the lower left corner of the display the points of the electrode calibration are shown.
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Page 24: Ph Measurement
(pic.10) Accurate laboratory measurements require using of electromagnetic stirrers. Pic. 10. NOTE: exceeding of the range of temperature compensation is indicated by blinking of the pH readout and the symbol. User‘s manual for CP-411 pH meter v5.30... -
Page 25: Measurements With Manual Temperature Compensation
- 19 - 10.2. Measurements with manual temperature compensation Disconnecting the temperature probe switches the meter to the manual temperature compensation mode (the symbol next to the temperature reading disappears). Measurement with manual temperature compensation is similar to measurement with ATC, the difference is that in manual compensation the meter takes into consideration the value of the temperature introduced by the user instead of the temperature measured with the temperature probe. -
Page 26: Notices About The Temperature Compensation And Interpretation Of The Measurement Results
- 20 - Notices about the temperature compensation and interpretation of the measurement results The CP-411 pH meter has an automatic temperature compensation, which enables eliminating errors resulting from affecting electrode characteristics by temperature changes. To explain the role of the temperature compensation it is important to remind that pH meter is an mV meter which displays redox counted to pH. - Page 27 Slight differences of the results are connected with the accuracy of the meter. The accuracy of CP-411 is ±0,01 pH, ±1 digit, what practically means that in extreme conditions results of two measurements of the same solution may differ in ±0,05 pH. This is an acceptable error, because one result has error equal –...
- Page 28 - 22 - User‘s manual for CP-411 pH meter v5.30...
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Page 29: Redox And Temperature Measurement
- 23 - III. REDOX AND TEMPERATURE MEASUREMENT... - Page 30 - 24 - User‘s manual for CP-411 pH meter v5.30...
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Page 31: Redox Potential Measurement
- 25 - Redox potential measurement CP-411 enables redox potential measurement. The measurement may be made with use of special redox electrode or during titration. The readout is possible after choosing the redox measurement mode (chapter 6.1). Pic. 12 Temperature measurement The temperature measurement is made as follows: - connect the temperature probe to the Chinch connector;... - Page 32 - 26 - User‘s manual for CP-411 pH meter v5.30...
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Page 33: Other
- 27 - IV. OTHER... - Page 34 - 28 - User‘s manual for CP-411 pH meter v5.30...
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Page 35: Readout Of The Software Version Number
- 29 - Readout of the software version number In order to check the software version number turn the meter off and next, holding the button, turn the meter on by pressing the button. Instead of the display test, the screen as in the picture below will appear (Pic. 13). -
Page 36: Power Source And Changing The Battery
Next, do the screws till the moment of resistance (not too hard). Leaving the wall improperly screwed may cause the meter’s inundation, which is not repaired under the warranty conditions. User‘s manual for CP-411 pH meter v5.30... -
Page 37: Technical Data
- 31 - Technical data pH MEASUREMENT: Accuracy Range Resolution (±1 digit) ±0.01 pH 0.01 pH 0.00 ÷ 14.00 pH INPUT IMPEDANCE: >10 Ω TEMPERATURE COMPENSATION: automatic -5.0 ÷ 110.0 o C RANGE OF COMPENSATION: pH ELECTRODE CALIBRATION: automatic, in 1 ÷ 3 points THERMAL STABILITY OF ZERO : 0.001pH/ REDOX POTENTIAL MEASUREMENT:... -
Page 38: Equipment
2. Pt-1000B temperature sensor (standard); 3. Plastic container for the meter, electrode and temperature probe; 4. Warranty with manual; Additional equipment includes: 1. 12V/100mA stabilised power adapter; 2. Pt-1000 1/3B temperature probe of higher accuracy. User‘s manual for CP-411 pH meter v5.30... - Page 39 W A R R A N T Y The “ELMETRON” company gives 24 months of warranty for the CP-411 pH-meter number ......... The electrode has a 12-month warranty. In case of damage the manufacturer will repair the meter within 14 days of the day of delivery.
- Page 44 Sp. j. 41-814 Zabrze, Witosa 10 tel. (+48) 32 2738106 fax (+48) 32 2738114 www.elmetron.com e-mail: info@elmetron.com.pl...
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