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Micro TAN Titrator

Micro TAN Titrator, world-class design.
Methods:
ASTM D664, IP 177,

								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								ASTM D664, 
								
								
								
								
								
								
								
								
								
								
								
								
								
								IP 177, 
								
								
								
								
								
								
								
								
								
								

Practical design for the everyday user

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 Micro 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

features__astm compliant

The following accessories are recommended for purchase in sequential order (see eStore):

1st Year:
Filter cartridge with cotton
Pack 10 white “O” ring
Buffer Solution pH 11, 500ml
Electrode cleaning Solution, 500ml
pH Electrode Storage Solution, 500ml
0.1M KOH/2-Propanol
TAN/TBN Electrode Filling Solution, 1mol/L LiCl, 100ml
2nd Year:
Glass vessel, 250ml
Micro TAN vessel
Micro Combined pH electrode with lead
Remaining Parts:
MicroTAN complete system
TTL SL syringe, 10ml
Cylinder for fixing 10ml syringe
Electrovalve for burette
Burette outlet tube with antidiffuser device
Burette inlet tube with bottle cap, DIN45 screw
Support with magnetic stirrer
Stirrer bar, 6x20mm
Ticom software kit with notebook
Thermal printer
Dot impact printer
Mains Power Pack
Bottle Top Dispenser 5-60ml
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

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

Brochure: Micro TAN Titrator by GR Scientific

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