Universal Titrator

Automatic Titrator for exchangeable heads for potentiometry and KF

The Titroline® 7750 is the all-rounder for both potentiometric titration and volumetric KF titration. The TitroLine® 7750 combines the features of the potentiometric titrator TitroLine® 7000 and the volumetric Karl Fischer titrator TitroLine® 7500.

General features
• High visibility, full color display that can be easily viewed from a distance and at extreme angles.
• Reagent data is securely stored in the intelligent and interchangeable modules
• Includes up to three USB, one LAN and two RS232 ports for expansion and connection of devices
• Export the results as PDF or CSV, also to networks.

Specific features for the TitroLine® 7750
• Automatic wireless recognition of SI Analytics ID electrodes guarantee accurate calibration and measurements
• High resolution pH/mV-electrode and temperature inputs for pH, ISE, redox (ORP) or photometric titrations.
• Perfect for non-aqueous titration such as acid and base numbers in oils (TAN and TBN)
• Polarizable electrode input for set endpoint titrations („Dead-stop“ + KF)
• Linear (fixed increment) and dynamic equivalence point titration mode and titration to endpoints
• pH Stat titrations
• volumetric KF titrations
• Single and continuous measuring function
• Formula editor for individual calculations
• User management/password

Latest features
• Titrations with the new photometric sensor OptiLine 6
• Dosing with up to two connected piston burettes per method
• Titration with external piston burette

Scope of delivery:
Basic unit (scope of delivery please refer to the basic unit), with 20 ml exchangeable head, TM 235 KF titration stand with integrated stirrer and pump, titration vessel TZ 1770, micro double platinum electrode KF 1100,starter kit, power supply 100-240 V

  • Technical Specification

Technical Specification

Measuring input analog pH/mV-input with 24 bit transducer. Electrode socket according to DIN 19 262 or BNC with RFID receiver for SI Analytics ID electrodes
Measuring range pH/accuracy - 3.0… 18.00 / 0.002 +/- 1 digit
Measuring range mV/accuracy - 2000…2000/ 0.1 +/- 1 digit
Measuring input µA/KF:  μA-connector for double platinum electrodes, connection: 2 x 4 mm - sockets), polarisation voltage variably adjustable
Measuring input temperature:  Connector for Pt 1000 / NTC 30 KOhm ( connection: 2 x 4 mm - sockets)
Measuring range temperature Pt 1000 - 75…195 °C    / NTC 30 KOhm - 40 …125 °C
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