SI Analytics Automatic Titrator TitroLine® 7500 KF for volumetric water determination

SI Analytics Automatic Titrator TitroLine® 7500 KF for volumetric water determination

  • SKU: 285220810
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  • Description

    Automatic Titrator for volumetric KF-Titration

    The TitroLine® 7500 KF is a compact, easy-to-use volumetric titrator for water determination according to Karl Fischer (KF) with a typical operating range of 0.1 % - 100 % water.

    The water determination according to Karl Fisher (KF) is the most selective and precise method for water determination. There is the volumetric and coulometric method. The coulometric method generates the iodine directly in the titration vessel which allows the determination of very low water concentrations. The advantage is also that you do not have to determine the concentration of the titrant. With the volumetric method the iodine is added accurately through a piston burette.

    The volumetric method is the more general method suitable for almost all kind of samples. Suitable for chemical, petrochemical, plastic and pharmaceutical as well as the food industry. The samples could be either liquid, solid or gaseous. Besides the selection of the right KF reagents, e.g. a higher temperature and/or the use of a disperser allows to determine the water content in many samples.

    The TL 7500 with 5, 10 or 20 ml burette has an exceptional high visibility full color graphic display which allows viewing even at extreme angles. The titration curve, but also other information such as ml, drift in µg/mL and µA-value are clearly displayed on the display.

    The three USB, two RS 232 and Ethernet interfaces makes the TL 7500 KF highly communicative. Various USB devices such as printers, barcode readers, keyboards can be connected. Analytical balances, PC and other SI Analytics devices such as the autosampler TW 7200 can be connected via the RS-232 interfaces. The Ethernet interface allows data to be stored on a directly connected USB stick in PDF and CSV format as well as on shared network directories.

    The parameters can be customized in each of the up to 50 methods. Through the user/password management, each user can be assigned individual rights. If you need even more methods or want to manage the data on a PC, you can use the TitriSoft PC software to control the TL 7500 KF. The TitriSoft 3.5P (TZ 3572) comply fully with 21 CFR, Part 11.

    Key Features

    • Volumetric KF titration
    • Ready to use standard methods for standardization of the titrant and sample titration for 1- and 2-Component KF titrants.
    • Statistical functions including average value and relative standard deviation
    • Configurable output: Short, Standard with curve, GLP
    • Formula editor for individual calculations
    • Output of results in ppm,%, mg, μg, mg / l. Unit individually adjustable
    • Also suitable for the determination of bromine number and other dead stop titrations such as SO2 in wine and other food products.
    • Can be used also for dosing tasks such as sample preparation based on the sample weight.
    • The addition of the solvent and the extraction of the titrated sample are carried out by titration stand at the push of a button (Included with all sets)

    Basic titrator unit includes:

    Basic unit, connection cable for TM 235 and TM 235 KF, USB keyboard TZ 3835, stand rod TZ 1748 and power supply 100-240 V.

    SKU inclusions:

    TL 7500 KF 05:  285220810
    Basic unit + 5ml burette head + stand/stirrer/pump + vessel + electrode + starter kit

    Basic titrator unit, 5 ml exchangeable burette head WA 05, TM 235 KF titration stand with integrated stirrer and pump, titration vessel TZ 1770, micro double platinum electrode KF 1100 and starter kit with desiccant, glass wool, syringes and needles.

    TL 7500 KF 10:  285220820
    Basic unit + 10ml burette head + stand/stirrer/pump + vessel + electrode + starter kit

    Basic titrator unit, 10 ml exchangeable burette head WA 10, TM 235 KF titration stand with integrated stirrer and pump, titration vessel TZ 1770, micro double platinum electrode KF 1100 and starter kit with desiccant, glass wool, syringes and needles.

    TL 7500 KF 20: 285220830 
    Basic unit + 20ml burette head + stand/stirrer/pump + vessel + electrode + starter kit

    Basic titrator unit, 50 ml exchangeable burette head WA 20, TM 235 KF titration stand with integrated stirrer and pump, titration vessel TZ 1770, micro double platinum electrode KF 1100 and starter kit with desiccant, glass wool, syringes and needles.

  • Specifications
    Measuring input µA/KF:  μA-connector for double platinum electrodes, connection: 2 x 4 mm - sockets), polarisation voltage variably adjustable
    Interfaces:  3 × USB (2 x USB-A and 1 × USB-B), 2 × RS-232-C and 1 x LAN
    Interchangeable burettes  5, 10, 20 ml or 50 ml intelligent interchangeable burette units
    Resolution (Steps):  20.000 steps
    Dosing accuracy: according to DIN ISO 8655, part 3:
    accuracy: < 0.15 %
    precision: < 0.05 - 0.07 % (in dependence of the used burette size)
    Display 3.5 inches - 1/4 VGA TFT graphic color display with 320 x 240 pixels
    Housing material Polypropylene
    Dimensions 15.3 x 45 x 29.6 cm (W x H x D), height with interchangeable head
    Front keyboard Polyester coated
    Material interchangeable burettes Valve: PTFE/ETFE;
    Cylinder: borosilikate glass 3.3 (DURAN®)
    hoses (FEP, blue) 
    Weight 2.3 kg for basic device, 3.5 kg für complete device with interchangeable head (with empty reagent bottle) 
    Ambient conditions Ambient temperature: + 10 ... + 40 °C for operation and storage Humidity according to EN 61 010, Part 1: max. relative humidity 80 % for temperatures up to 31 °C, linear decrease down to 50 % relative humidity at a temperature of 40 °C
    Power supply: 100-240 V; 50/60 Hz, power input: 30 VA
    CE-sign:  EMC compatibility according to the Council Directive: 2004/108/EG; applied harmonized standards: EN 61326-1:2006
    Low-voltage directive according to the Council Directive 2006/95/EG Testing basis EN 61 010, Part 1
    Titration stand TM 235 KF
    Pump Free volume flow- air-: flow rate 2.25 l / min
    Delivery pressure max. 1.5 bar.
    Flow rate liquid medium ca. 0.8 l / min
    Stirring speed 50 ... 1000 U/min
    Hoses PVC- hose (outer diameter 6 x 1 mm)
    PTFE- hose (outer diameter 4 x 0.5 mm)
    Dimensions 80 x 130 x 250 mm, (W x H x D (height without stand rod)
    Weight 1 Kg
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