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Table of Contents
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Summary of Contents for Lovibond SensoDirect Oxi200
- Page 1 SensoDirect Oxi200 Dissolved Oxygen Meter Operating instructions...
- Page 2 Schleefstraße 8 a 44287 Dortmund Deutschland declares that this product Product name: SensoDirect Oxi200 with all optional items conforms to the following regulations: EN 55 022 : 6 / 1993 class B EN 50 082-1 (EN 61000-4-6, EN 61000-4-4, EN 61000-4-3,...
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Page 3: Table Of Contents
Table of Contents Page Scope of delivery ..............4 System description ............4 Connections ..............6 Display ................6 Keypad ................8 Startup ................8 Measurement ..............10 Configuration of the unit ...........10 Resolution of display for oxygen measurement ....11 Zero point temperature offset ...........11 Salinity: salinity correction ..........12 Display of sensor status ..........12 Pressure Absolute, display of absolute pressure .....13 Selection of temperature unit °C /°F .........13... -
Page 4: Scope Of Delivery
• Carrying case • Operating instructions 2. System description The Lovibond SensoDirect Oxi200 is a sturdy, water- ® tight handheld meter designed for daily measurements in the area of field or laboratory analysis. It is used to measure oxygen concentration in surface waters and groundwater as well as for waste water and service water analysis. - Page 5 Microprocessor technology and 4*AA 1,5 V batteries allow unit operation without battery change for 12,000 hours or more. A „Low Bat” indicator in the display shows the user when it is time to change the batteries. The required temperature compensation for the system is performed automatically following connection of the temperature sensor (NTC, 10 kOhm) that is integrated as standard in the Tintometer oxygen sensor.
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Page 6: Connections
3. Connections Oxygen sensor... -
Page 7: Display
4. Display Main Display: Result or user prompt [mmHg] Oxygen partial pressure in mmHg [hPa] Oxygen partial pressure in hPa [mg/l] Oxygen concentration [%O2] Oxygen saturation Secondary display: Result - temperature or user prompt Percent (sensor evaluation) [°C/°F] Temperature unit Warning index - battery Δ... -
Page 8: Keypad
5. Keypad [Meas] Continuous measurement - standard [Hold] Auto-Hold: Automatic retaining of stable result [On/Off] On / Off Display change: partial pressure, [▲] [▼] concentration or saturation. Leaf through menu or display [Rcl] Display of stored results [Cal] Calibration mode [Store] Storage of current result or acceptance of unit configuration... - Page 9 Screw the unit back together carefully without exerting too much pressure on the gasket seal. If the symbol appears together with „bAt” in the Δ lower section of the display, this means that the bat- teries are nearly empty and need replacing. However, the unit will continue to function for a certain period of time.
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Page 10: Measurement
7. Measurement Measuring mode MEAS After the unit is switched on, it is automatically in the standard measuring mode (MEAS). You can switch to the standard MEAS measuring mode by pressing the [Meas] key. The display shows the current, possibly still fluctuating result and [Meas]. -
Page 11: Resolution Of Display For Oxygen Measurement
If you press the [Menu] key again, the display jumps to the next menu item. You can set the various parameters using the [▲] [▼] keys. Press the [Store] key to store and conclude configu- ration. The unit then switches back to measuring mode. You can terminate the configuration process by pres- sing the [Meas] or [Hold] key. -
Page 12: Salinity: Salinity Correction
8.3 Salinity: salinity correction 0...70,0 ‰: Selection of salinity correction off: Salinity correction inactive 8.4 Display of sensor status Indication of the sensor status that is computed internally during every calibration depending on the sensor used. The electrode is in excellent condition. 100% The condition of the electrode is ade- 30...90%... -
Page 13: Pressure Absolute, Display Of Absolute Pressure
8.5 Pressure Absolute, display of ab- solute pressure Display of the absolute atmospheric pressure in hPa. 8.6 Selection of temperature unit °C /°F °C All temperature values in degrees Celsius °F All temperature values in degrees Fahrenheit (°C = 0.556*°F-17.8 or °F = 1.8*°C+32) 8.7 Selection of unit for oxygen partial pressure Oxygen partial pressure in hPascal... -
Page 14: Absolute Pressure
Please note the following when measuring dissolved oxygen: The sensor should be calibrated after the unit is swit- ched on. The sensor and the liquid to be measured must have the same temperature (leave until the temperatures match if necessary) Measurements are only sufficiently accurate if perfor- med with a minimum flow rate of approx. -
Page 15: Calibration Of Oxygen Measurement
The higher the salinity, the lower the solubility of oxy- gen in water; in other words, fewer mg of oxygen are dissolved per litre of water at the same oxygen partial pressure. It is therefore necessary to first enter the salinity of the medium in order to determine the oxygen con- centration. -
Page 16: Oxygen Sensor
‘CAL’ appears in the display. As soon as the results for oxygen, temperature and air pressure are constant, calibration is terminated automatically. The sensor status (‘ELEC’, valuation in 10% steps) is then briefly displayed. Depending on the temperature, a correctly calibrated sensor shows a result of 102..114% (oxygen satu- ration). -
Page 17: Operating Notes
perature-dependent Operating pressure: max. 3 bar. Installation diameter: Ø 12.0 ±0.2 mm (fits a 1/2 „ screw connection, for example) Overall length: approx. 220 mm (incl. anti-kink protection) Installation length: approx. 110 mm Weight: approx. 180 g Operating temperature: 0 to +40°C Storage temperature: 0 to +60°C The galvanic self-polarising sensor with silver cathode... -
Page 18: Design Of The Sensor
then needs to be recalibrated. b.) The sensors may only be used with the correspon- ding units. The use of the sensors in combination with unsuitable units can destroy the unit and the sensors! c.) Unit and sensor must be handled with care and used in accordance with the technical data outlined above. -
Page 19: Care And Maintenance
cap cause incorrect results. The membrane cap is listed in the spare parts list. Refill opening: if the sensor is used at excessive temperatures or stored outside the storage bottle for lengthy periods of time, this will result in electrolyte evaporation losses. -
Page 20: Result Memory
Unscrew the membrane head and wipe off the elec- trolyte solution carefully using a paper cloth. Do not allow the electrolyte to come into contact with your hands. If it does come into contact with your skin, rinse the affected area thoroughly in water. To clean the silver cathode, sand lightly using sand- paper (240 grit). -
Page 21: Storing Results
ratures can be stored. 12.1 Storing results You can store the current result in the result memory by pressing the [Store] key. [Stor] and the number of the memory location appear briefly in the display. 12.2 Displaying stored results You can call the stored results up in the display by pressing the [Rcl] (=Recall) key. -
Page 22: Error Messages And Troubleshooting
[CLr-ALL]: delete all stored results. [CLr-LASt]: delete the last-stored result. [CLr-nonE]: do not delete any result. 13. Error messages and troubleshooting Display Cause Remedy Weak battery vol- Insert new batteries tage the unit will only continue to function for a short time Batteries empty Insert new batteries No display or... - Page 23 measuring range? -> Result too high! Sensor defective Replace sensor Err.2 Below Check: can value be measuring range below admissible measuring range? -> Result too low! Sensor defective Replace sensor Err.7 System error Send in for repair Err.9 Sensor not present Connect sensor Sensor defective Replace sensor...
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Page 24: Technical Data
-> Place sensor in water for 2 hours (waterxx) Repair or replace sensor Check calibration environment CAL.-Err.4 Sensor signal Air bubbles in the too high diaphragm head? Check calibration environment 14. Technical data Indicating ranges High resolution Low resolution, Auto Range Oxygen partial 0.0...570.0 hPa 0...1200 hPa... - Page 25 Temperature ±0,1°C Abs. pressure +/- 0,5% full scale Nominal 25°C temperature: Operating 0 to +50°C temperature: Storage -20 to +70°C temperature: 20 result memory locations Memory: 4 x 1.5 V -batteries, Type AA Power supply: operating life up to 2000h (depending on measuring mode and battery type) Power max.
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Page 26: Accessories
Operating temperature: 0...40°C 15. Accessories 723200 Lovibond SensoDirect Oxi200 ® Basic Instrument SensoDirect Oxi200 Set 723220 Lovibond ® 723201 SensoDirect Oxygen Sensor 1 m cable 723210 SensoDirect Oxygen Sensor 10 m cable 723230 SensoDirect Oxygen Sensor 30 m cable... - Page 28 Tintometer GmbH The Tintometer Limited Tintometer AG Lovibond Water Testing Lovibond House / Solar Way Hauptstraße 2 ® Schleefstraße 8-12 Solstice Park / Amesbury, 5212 Hausen AG 44287 Dortmund SP4 7SZ Tel.: +41 (0)56/4422829 Tel.: +49 (0)231/94510-0 Tel.: +44 (0)1980 664800...
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