The Micro TAN titrator (or Total Acid Number titrator) has been designed to offer maximum specifications and features whilst being priced at a very competitive level. This compact TAN titrator conforms to ASTM D664 for determination of acidic constituents in petroleum products, lubricants and transformer insulating oils.
Oils continually react with atmospheric oxygen to produce organic oxidation products that are acidic in nature. At ambient temperature, this reaction is very slow and has little effect upon oil conditions.
At the elevated temperatures that exist within an operating engine, reaction rates are much higher. Elevated operating temperatures can generate high levels of weak organic acids. They cause increased oil viscosity and can deposit as lacquers on hot surfaces.
Quality measurement, thorough insight.
Total Acid Number or TAN is the measure of both the weak organic and strong inorganic acids present in oil. It is applicable to gearbox, gas engine, gas turbine and hydraulic lubricants. It is an important quality measurement of crude oil. The TAN value indicates to the crude oil refinery the potential of corrosion problems.
Total Acid Number is an analytical test to determine the deterioration of lubricants. The more acidic a lubricant is, the further its degradation has proceeded.
Theoretically, the Total Acid Number (TAN) is the amount of potassium hydroxide in milligrams that is needed to neutralize the acids in one gram of oil.
Accurate value assessment.
TAN value can be measured by potentiometric titration with this Micro TAN titrator. The sample is dissolved in toluene and propanol with a little water and titrated with alcoholic potassium hydroxide. A glass electrode and reference electrode is immersed in the sample and connected to the instrument. The meter reading (in millivolts) is plotted against the volume of titrant.
The end point is taken at the distinct inflection of the resulting titration curve corresponding to the basic pH 11 buffer solution.?Request a quote for this compact titrator online.
Features
Micro TAN Titrator is fully compliant with ASTM D664, providing both standard method and refined methodology.Accessories
The following accessories are recommended for purchase in sequential order (see eStore):
| 1st Year: | Filter cartridge with cotton<br /> Pack 10 white “O” ring<br /> Buffer Solution pH 11, 500ml<br /> Electrode cleaning Solution, 500ml<br /> pH Electrode Storage Solution, 500ml<br /> 0.1M KOH/2-Propanol<br /> TAN/TBN Electrode Filling Solution, 1mol/L LiCl, 100ml |
| 2nd Year: | Glass vessel, 250ml<br /> Micro TAN vessel<br /> Micro Combined pH electrode with lead |
| Remaining Parts: | MicroTAN complete system<br /> TTL SL syringe, 10ml<br /> Cylinder for fixing 10ml syringe<br /> Electrovalve for burette<br /> Burette outlet tube with antidiffuser device<br /> Burette inlet tube with bottle cap, DIN45 screw<br /> Support with magnetic stirrer<br /> Stirrer bar, 6x20mm<br /> Ticom software kit with notebook<br /> Thermal printer<br /> Dot impact printer<br /> Mains Power Pack<br /> Bottle Top Dispenser 5-60ml |
Specs
| Non- volatile memory |
3 titration programs depending on TAN content, Blank titration, Clock/calendar. Header texts:2 lines x 40 characters. Name of up to 4 operators Up to 50 results stored in Data Logger |
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| Languages | English, Spanish, French, Italian | |
| Display | Graphic backlit LCD, 128 x 64 dots | |
| Keypad | Membrane, 7 keys, guaranteed up to 6 million strokes per key Material: PET with protective treatment | |
| Syringe volume | Standard syringe 10 ml | |
| Resolution | 1/40000 of syringe volume | |
| Dispensing accuracy | (as relative error) ≤ 0.2 % for volumes higher than 10 % of syringe | |
| Dispensing reproducibility | ± 0.1 % for volumes higher than 10 % of the syringe | |
| Liquid contact materials | Syringe: borosilicate glass and PTFE Electrovalve: PTFE and KEL-F. Tubes: PTFE | |
| Inputs and outputs | Differential measurement: 2 BNC connectors. For external keyboard, miniDIN connector. RS232C bidirectional for PC or printer, telephone connector. RS232C for balance, telephone connector Stirrer control: On/Off and speed, RCA connector | |
| Power supply | 90 – 264 V AC, 47-63 Hz | |
| Electrical safety | Meets EC, EN 61010 | |
| EMC | Meets EC, EN 50081-2 and EN 50082-2 | |
| Permitted temperatures | Operating: 10 – 40 ºC. Storage: 10 – 50 ºC ≤ 80 %, relative humidity, non condensing | |
| Enclosure | ABS and enamelled steel | |
| Physical parameters | ABS and enamelled steel |
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