Related Manuals for TESTO 230
Summary of Contents for TESTO 230
- Page 1 230 · pH- and temperature measuring instrument 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Instruction manual Visit us at www.TestEquipmentDepot.com...
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Page 3: Table Of Contents
1 Contents Contents Contents ....................3 Safety and the environment ..............5 2.1. About this document ................ 5 2.2. Ensure safety ................... 5 2.3. Protecting the environment .............. 6 Specifications ..................7 3.1. Use ....................7 3.2. Technical data ................. 7 Product description ................. - Page 4 1 Contents Tips and assistance ................21 8.1. Questions and answers ..............21 8.2. Accessories and spare parts ............24 Appendix ....................25 9.1. Electrode/application assignment ..........25 9.2. Buffer table..................28...
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Page 5: Safety And The Environment
> Only perform maintenance and repair work on this instrument that is described in the documentation. Strictly follow the specified steps. Use only original spare parts from Testo. > Do not store the product together with solvents. Do not use any desiccants. -
Page 6: Protecting The Environment
> Dispose of faulty rechargeable batteries/spent batteries in accordance with the valid legal specifications. > At the end of its useful life, send the product to the separate collection for electric and electronic devices (observe local regulations) or return the product to Testo for disposal. -
Page 7: Specifications
3 Specifications Specifications 3.1. The testo 230 serve the purpose of determining pH-values, redox potentials and temperature in aqueous solutions as well as in semi- solid to solid media. 3.2. Technical data Instrument Feature Values Measurement range pH 0...14, -50...+150 °C, ±1999 mV Resolution pH 0.01, 0.1 °C (°F), 1 mV... - Page 8 3 Specifications Feature Values Measuring 24 months instrument 12 months Electrode 12 months Sensor Electrodes/temperature sensors Feature Values pH universal plastic Measurement range: 0...14 pH electrode without Operating temperature: 0...+60 °C temperature sensor (0650 short-term up to +80 °C 2063) pH universal plastic Measurement range: 0...14 pH electrode with temperature...
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Page 9: Product Description
4 Product description Product description 4.1. Overview 4.1.1. Control elements and connections 1 Display see Display page 10 2 Keyboard Function Switching on/off To call up individual menu levels To hold readings or, with manual input function, set readings To select menu options or, with manual input function, set readings... -
Page 10: Display
4 Product description 3 Battery compartment (on rear) 4 BNC connecting socket for pH and redox electrode 5 Mini-DIN connecting socket for NTC temperature sensor 4.1.2. Display 1 Reading (pH/mV, °C for temperature measurements without pH electrode) 2 DIN/NBS buffer (display in alignment menu) 3 Reading (°C for temperature measurements) 4 Auto-Off display: The circle segments in the display go out in a 2.5 minute interval. -
Page 11: Connection Variants
2063, 0650 0245) calibration the medium temperature must be entered manually. Temperature NTC-sensor with With the NTC-sensor the measurement Mini-DIN plug testo 230 is a fully adequate temperature measuring instrument to cover the range from -50 °C ... +150 °C. - Page 12 4 Product description Measurement Probes function Display Redox Redox electrode The redox electrode is measurement used to determine the redox potential of the medium. With the NTC-sensor the temperature can additionally be determined. However, the temperature has no influence on the redox measurement.
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Page 13: First Steps
5 First steps First steps 5.1. Commissioning 5.1.1. Installing the sensor Before the instrument is switched on the electrode cable must be connected. 1. Plug the BNC-plug of the electrode into the socket and turn clockwise to lock. 2. Plug the external NTC-sensor with Mini-DIN plug or blanking plug into the socket. -
Page 14: Calibrating The Instrument
Single-point calibration serves the purpose of quickly adapting the instrument to the electrode. The following buffers can be used for this purpose: • Testo buffer pH 4, pH 7, pH 10 • DIN buffer pH 4.008 ; pH 6.865 ; pH 9.18 Also pay attention to the application information for the buffer used. -
Page 15: Two-Point Calibration
Two-point calibration serves the purpose of accurately adapting the instrument to the electrode. The following buffer sets can be used for calibration: • Testo buffer set pH 4/7, pH 4/7/10 • DIN buffer set pH 4.008/6.685 , pH 6.865/9.18 Also pay attention to the application information for the buffer used. - Page 16 After max. 10 min. the calibration process is aborted, the electrode is most likely defective, in this case consult our service department. Contact data see back of this document or website www.testo.com/service-contact. The display shows 9. Rinse the electrode in water, dab off and place it into the second buffer solution 10.
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Page 17: Using The Product
Measuring page 18. Using the product 6.1. Performing settings testo 230 has a configuration menu in which the following successive settings can be made: 1 Change measuring unit from °C to °F and vice-versa. 2 Switch Auto-Off function on or off. -
Page 18: Measuring
6 Using the product Performing a reset (Clear mode) 7. Press SELECT to select yes. > If is selected, the previous values will be maintained. 8. Press HOLD to acknowledge. The previously valid values will be deleted and the ideal values (-58 mv/pH and 0 mV) will be saved in the instrument. -
Page 19: Temperature Measurement
6 Using the product 6.2.2. Temperature measurement ✓ NTC sensor connected. 1. Place the NTC sensor into the measuring solution. 2. Press I/O. Press three times. The temperature is displayed. If the display reading is stable, the measuring value is correct. Back to the pH measurement menu: >... -
Page 20: Auto-Hold Function
7 Maintaining the product 6.2.5. Auto-Hold function The Auto-Hold function monitors the setting time during a measurement. Once the reading is stable, this status is indicated both visually and audibly. 1. Start measuring process (see Measuring Seite 18). 2. Press to select Auto-Hold. -
Page 21: Cleaning The Instrument
> The instrument is suitable for contact with weak acids and alkaline solutions. After use in aggressive environments the instrument must be cleaned with a damp cloth. For care and maintenance of the pH-electrodes you should read the operating instructions "testo pH-electrode". Tips and assistance 8.1. Questions and answers... - Page 22 , the values of the last calibration are maintained). > Rinse the electrodes and repeat the process. If the error occurs again, use a new electrode. Err 7 • Internal instrument fault, measuring instrument defective. > Consult the Testo Customer Service or your dealer.
- Page 23 24 hours in a solution of thiocarbamide in 0.1M HCI and finally rinse with distilled water. If we have not answered your question, please contact your local dealer or Testo´s Customer Service. Contact data see back of this document or website www.testo.com/service-contact.
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Page 24: Accessories And Spare Parts
8 Tips and assistance 8.2. Accessories and spare parts Description Article no. Electrodes and sensors pH universal plastic electrode without 0650 2063 temperature sensor pH glass electrode with temperature sensor 0650 1623 pH food electrode without temperature sensor 0650 0245 pH universal plastic electrode with 0650 2064 temperature sensor... -
Page 25: Appendix
9 Appendix Appendix 9.1. Electrode/application assignment Key: - unsuitable, 0 suitable with reservations, + well suitable New type 0650 0650 0650 0650 – – – – designation 2063 1623 0245 2064 Old type Type – Type – Type Type Type Type designation Application... - Page 26 9 Appendix New type 0650 0650 0650 0650 – – – – designation 2063 1623 0245 2064 Old type Type – Type – Type Type Type Type designation Application Meat in the puncture Fruit, vegetable in the puncture Hydrofluoric acid containing media Plating-shop waste...
- Page 27 9 Appendix New type 0650 0650 0650 0650 – – – – designation 2063 1623 0245 2064 Old type Type – Type – Type Type Type Type designation Application Partly aqueous solutions, > 10 % Partly aqueous solutions, < 10 % pH-measurement at temperatures up to 100 °C...
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Page 28: Buffer Table
9 Appendix 9.2. Buffer table The table below lists the temperature related changes to the buffers. (DIN buffer acc. to DIN 19266) In the calibration this is automatically accounted for. DIN buffer Testo buffer °C 1.685 4.006 6.865 9.180 4.00 7.00... - Page 32 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com 0973 2610 en 03...