Orion versa star user Manual
A | Channel Specific Settings and Features
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- Bu səhifədəki naviqasiya:
- Cat. No. 011006, 01100610 (mS/cm) Orion 1413μS/cm Conductivity Standard Cat. No.
- (μS/cm) Orion 100μS/cm Conductivity Standard Cat. No. 011008 (μS/cm)
- Solution (25 °C to 50 °C) Temperature Coefficient (% / °C)
- Conductivity at 20 °C (mS/cm) Salinity Correction Value (ppt)
- North America Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 info.water@thermo.com Netherlands
- Japan Tel: (81) 045-453-9175 wai.asia@thermofisher.com Australia
Appendix A | Channel Specific Settings and Features Temperature (°C) Orion 111.9mS/cm Conductivity Standard Cat. No. 011005, 01100510 (mS/cm) Orion 12.9mS/cm Conductivity Standard Cat. No. 011006, 01100610 (mS/cm) Orion 1413μS/cm Conductivity Standard Cat. No. 011007, 01100710 (μS/cm) Orion 147μS/cm Conductivity Standard Cat. No. 01100910 (μS/cm) Orion 100μS/cm Conductivity Standard Cat. No. 011008 (μS/cm) 26 113.9 13.10 1441 150 102 27 115.9 13.35 1468 153 104 28 117.9 13.59 1496 156 106 29 120.0 13.84 1524 159 108 30 122.0 14.09 1552 161 110 31 124.1 14.34 1580 164 112 32 126.2 14.59 1608 167 114 33 128.3 14.85 1636 170 117 34 130.4 15.10 1665 173 119 35 132.5 15.35 1693 176 121 36 134.6 15.61 1722 179 123 37 136.7 15.86 1751 182 125 38 138.9 16.12 1780 185 127 39 141.0 16.37 1808 188 129 40 143.2 16.63 1837 191 131 41 145.4 16.89 1866 194 134 42 147.6 17.15 1896 197 136 43 149.8 17.40 1925 200 138 44 152.0 17.66 1954 203 140 45 154.2 17.92 1983 206 142 46 156.4 18.18 2013 209 145 47 158.7 18.44 2042 212 147 48 160.9 18.70 2071 215 149 49 163.2 18.96 2101 219 151 50 165.4 19.22 2130 222 154 118 | Orion V ERSA S TAR Meter User Manual Thermo Scientific Appendix A | Channel Specific Settings and Features Reference Temperature, Temperature Compensation and Temperature Coefficient V ERSA S TAR meters with a conductivity module offer several options for temperature compensated conductivity measurements. Temperature has a large effect on the conductivity value of a solution. The temperature compensation feature allows the meter to use the sample conductivity and temperature readings to calculate and display the conductivity that the sample would be expected to have at a selected reference temperature, such as 25 °C. To accurately use the temperature compensation feature, select the proper type of temperature compensation for the samples to be measured; set the required reference temperature as 5 °C, 10 °C, 15 °C, 20 °C or 25 °C; and use a conductivity probe with built-in ATC temperature probe. The options for temperature compensation are: · Linear – uses the temperature coefficient value to apply a constant percent correction factor to every degree change in temperature. A few common linear coefficient values are: Solution (25 °C to 50 °C) Temperature Coefficient (% / °C) Sugar Syrup 5.64 Ultra Pure Water 4.55 98 % Sulfuric Acid 2.84 Salt (NaCl) 2.12 Dilute Ammonia 1.88 5 % NaOH 1.72 10 % HCl 1.32 5 % Sulfuric Acid 0.96 · nLFn (non-linear ultra pure non-degassed water) – applies a non-constant correction factor to pure water samples that have a varying response to changes in temperature. This mode is for temperature compensated readings of low conductivity waters that are in equilibrium with the carbon dioxide in air, such as pure waters reading near 1 μS/cm at 25 °C and natural waters having a composition comparable to natural ground, well or surface waters. · nLFu (non-linear ultra pure degassed water) – applies a non-constant correction factor to pure water samples that have a varying response to changes in temperature. This mode is for temperature compensated readings of ultra pure water that contains no air and no carbon dioxide, such as ultra pure water (18 megohms resistance or higher) directly from the source without aeration. · EP – no temperature correction is applied (temperature compensation turned off) and a warning is displayed if the measured conductivity value is over the EP requirement for pure water at the measured sample temperature. · Off - no temperature correction is applied and the actual conductivity value is displayed at the measured sample temperature. Thermo Scientific Orion V ERSA S TAR Meter User Manual | 119 Appendix A | Channel Specific Settings and Features Cell Type The V ERSA S TAR meter with conductivity module accepts 2-cell and 4-cell conductivity probes and allows the type of conductivity probe to be set as Standard (most conductivity probes) or USP (for the ultra pure water conductivity probe, Catalog Number 013016MD, when disabling temperature compensation). TDS Factor The V ERSA S TAR meter with conductivity module measures TDS as the total amount of dissolved inorganic material in a solution. The dissolved inorganic material carries a current that is measured by the conductivity probe. Since there is a direct relationship between conductivity and TDS, conductivity readings are used to estimate the presence of inorganic material using the TDS factor entered in the setup menu. The standard method of determining TDS involves evaporating a sample to dryness at 180 °C and weighing the residue. The TDS factor is calculated by taking the residue weight and dividing it by the sample conductivity. Subsequent conductivity readings are multiplied by the TDS factor to determine the TDS value of the sample. Salinity Type The V ERSA S TAR meter with conductivity module offers two salinity types: practical salinity and natural sea water. Practical salinity measurements are based on relating the sample measurement to the reading of a standard potassium chloride (KCl) solution at 15 °C. The V ERSA S TAR meter with conductivity module will automatically temperature compensate and report the expected practical salinity result as practical salinity units (psu) at 15 °C when using a conductivity probe with built-in temperature sensor. Natural sea water measurements use a historic convention known as UNESCO 1966 and the V ERSA S TAR meter with conductivity module will report the expected natural sea water result as parts per thousand (ppt) . 120 | Orion V ERSA S TAR Meter User Manual Thermo Scientific Appendix A | Channel Specific Settings and Features Dissolved Oxygen Settings Barometric Pressure Compensation The V ERSA S TAR meter with RDO/DO module has an internal barometer that can be used for automatic pressure compensated dissolved oxygen readings. Manual barometric pressure compensation can also be used if dissolved oxygen is measured with a submerged probe or in a pressurized vessel. The pressure must be entered as mm Hg. 1 mm Hg = 0.03937 inch Hg = 1.3332 hPa (mBar) = 0.01934 PSI Salinity Correction Automatic salinity correction for dissolved oxygen readings reported as mg/L is available on the V ERSA S TAR meter with RDO/DO module when a conductivity module and conductivity probe are used simultaneously. The meter uses the conductivity value read by the conductivity probe to calculate the salinity correction factor and applies the factor to dissolved oxygen readings reported as mg/L. Manual salinity correction can be used for dissolved oxygen readings reported as mg/L on all V ERSA S TAR meters with RDO/DO module. The manual salinity correction factor must be entered as ppt (parts per thousand). Conductivity at 20 °C (mS/cm) Salinity Correction Value (ppt) Conductivity at 20 °C (mS/cm) Salinity Correction Value (ppt) Conductivity at 20 °C (mS/cm) Salinity Correction Value (ppt) 5 3 20 13 35 25 6 4 21 14 36 25 7 4 22 15 37 26 8 5 23 15 38 27 9 6 24 16 39 28 10 6 25 17 40 29 11 7 26 18 42 30 12 8 27 18 44 32 13 8 28 19 46 33 14 9 29 20 48 35 15 10 30 21 50 37 16 10 31 22 52 38 17 11 32 22 54 40 18 12 33 23 56 42 19 13 34 24 Calculated from the International Oceanographic Tables, Vol. 1, National Institute of Oceanography of Great Britain, Womley, Godaming, Surrey, England and Unesco, Paris 1971. Thermo Scientific Orion V ERSA S TAR Meter User Manual | 121 68X006501 0414 RevA thermoscientific.com/water © 2014 Thermo Fisher Scientific Inc. All rights reserved. RDO is a registered trademark of In-Situ Inc. Microsoft, Windows and Microsoft Vista are registered trademarks of Microsoft Corporation. All other trademarks are the property of Thermo Fisher Scientific Inc. & its subsidiaries. North America Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 info.water@thermo.com Netherlands Tel: (31) 020-4936270 info.water.uk@thermo.com China Tel: (86) 21-68654588 wai.asia@thermofisher.com India Tel: (91) 22-4157-8800 wai.asia@thermofisher.com Singapore Tel: (65) 6778-6876 wai.asia@thermofisher.com Japan Tel: (81) 045-453-9175 wai.asia@thermofisher.com Australia Tel: (613) 9757-4300 In Australia: (1300) 735-295 InfoWaterAU@thermofisher Water Analysis Instruments Document Outline
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