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Summary of Contents for LLG pH meter 7
- Page 1 ® L A B W A R E INSTRUCTION MANUAL LLG-pH METER 7 Art.No. 6.263 600 Thank you very much for purchasing this LLG-pH METER 7. Please read the following instructions carefully and always keep this manual within easy reach.
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Page 2: Measuring Principal
® L A B W A R E Preface Installation Instruction Measurement process 5 Technical Specifications Self-diagnostic Maintenance Attention WARRANTY REPLACEMENT 1. Preface pH meter is a kind of wide used general The measuring probe includes glass probe instrument in many different applications. and reference electrode, called pH electrode. -
Page 3: Installation
INSTRUCTION MANUAL 2. Installation Please instruction manual carefully before Note: using this instrument: read this The meter could be switched on again in 24 hours by touching any place on • Check the meter and the accessories the screen (3 seconds) if the meter is switched off by pressing the red according to the enclosed packing list. - Page 4 ® ® L A B W A R E L A B W A R E 3. Instruction 1. The main measurement screen and functional keys The display of this instrument is 5” TFT the measurement reading to operate the color LCD touch screen.
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Page 5: Measurement Result Display
INSTRUCTION MANUAL Area B Measurement Result Display Measurement result unit., press it to make an alternate display. Endpoint. A-automatic, M-manual. Temperature in Celsius degree. Area C Database Press this icon for data in database transfer. Press this icon for review data in database. Area D The electrode status and the buffer solution The electrode status. -
Page 6: Operation Keys
® L A B W A R E Area E Operation keys Press it to start a measurement or make a confirmation. Press to end a measurement process manually. Press to save current reading. The current datum has been saved. Press to start the calibration process. -
Page 7: Measurement Process
INSTRUCTION MANUAL 4. Measurement process It’s recommended to perform an electrode the sample measurement can be conducted calibration before measuring a sample. If directly. the electrode is calibrated in short time, 1. Calibration If the electrode without temperature This icon means the calibration result meets requirement compensation is used, “MTC”... - Page 8 ® L A B W A R E Fig. 3: The illustration of the electrode calibration 2. Measurement Press key on the screen starting the Wash the electrode with DI water, dry it, put measurement. Press on the screen after it in the sample solution, stir the solution the endpoint reached, saving measurement with electrode slightly.
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Page 9: Technical Specifications
INSTRUCTION MANUAL 5. Technical Specifications Model ph-Meter 7 Parameter Measurement mode pH/mV pH range (pH) -2.00 to 20.00 Resolution (pH) 0.01 Accuracy (pH) ± 0.01 mV range (mV) -2000 to 2000 Resolution (mV) Accuracy (mV) ± 1 Temperature range (°C) MTC: -5.0 to 105.0 °C ATC: -5.0 to 105.0 °C Temperature Accuracy (°C) ±... -
Page 10: Self-Diagnostic
® L A B W A R E 6. Self-diagnostic During the instrument operation process, instrument self-diagnostic, which will help some signs might appear on the main you to find out some problems of the screen, this is the information of the instrument or the electrode you are using. -
Page 11: Calibration Error Messages
INSTRUCTION MANUAL 2. Calibration Error messages: If the icon comes out follow the calibration point, the possible reasons are below: Error message Possible reasons Buffer solutions temperature has The temperature difference between the measured buffer a big difference from the pointed solution and the defined buffer solution is bigger than temperature. -
Page 12: Maintenance
® L A B W A R E 7. Maintenance The pH probes used in modern laboratories are combination electrodes. The advantages of these kinds of electrodes are: easy to be used, avoiding the effects of the oxidizing or reducing substances to the electrodes, quick balancing in solution. Below are brief introductions of the electrode and its maintenance. - Page 13 INSTRUCTION MANUAL 14. Do not use hand or metal object to touch the center of the electrode socket on the instrument. Put the short circuit plug or the electrode plug on when the instrument not in use. This will avoid the dust or moisture to affect the instrument and have affection of the accuracy of the measurement.
- Page 14 ® L A B W A R E 5. For higher measurement accuracy, the instruments should be calibrated by a standard buffer solution. The used standard buffer solution should be discarded after several times used. 6. Keep the instrument clean and dry, especially the socket of the electrode in the meter. Use the cotton and anhydrous ethanol to clean these sockets and dry them.
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Page 15: Warranty Replacement
INSTRUCTION MANUAL WARRANTY REPLACEMENT This product is warranted to be free from defects in material and workmanship for a period of three (3) years from date of purchase. This warranty is valid only if the product is used for its intended purpose and within the guidelines specified in this instruction manual. - Page 16 L A B W A R E L A B W A R E ® L A B W A R E Lab Logistics Group GmbH Am Hambuch 1 D-53340 Meckenheim/Deutschland Tel.: +49 (0)2225 9211- 0 Fax: +49 (0)2225 9211-11 www.llg-labware.com info@llg-labware.com...