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GENERAL TEST EQUIPMENT
K90500 Automatic Potentiometric Titrator
Availablity:
In stock
Catalog/Part Number:
K90500
Brand:
KOEHLER
Supplier:
KOEHLER
Supplier Location:
Holtsville, New York 11742, USA
Inventory Weight:
unavailable
Unit of Measurement:
Inventory Brochure:
unavailable
Catalog/Part Number:: K90500
Description
Test Method
For
determination of Total Acid Number (TAN), Total Base Number (TBN), Mercaptan
Sulfur and Karl Fischer Water Content of petroleum products, lubricants and
transformer insulating oils. Titration is the fundamental chemical analysis
procedure whereby the concentration of a chemical substance in solution is
determined by reacting it with a measured amount of another chemical. The Auto
titrator performs this analysis using a motor driven dispenser, stirred
reaction vessel and electrodes which sense the completion of reaction by
measuring the potential difference between two electrodes. Automatic Titration
increases accuracy, repeatability, and reproducibility as well as minimizing
errors in calculation and documentation.
Features
Acid-base or aqueous titration
Redox titration
Complexometric titration or EDTA titration
Blank titration
Silver Assay titrations
Non-aqueous titration
Argentometric or Precipitation titration
Voltametric / KF Titration
Back titration
Description
The
Automatic Titrator is provided with two-point auto calibration and
standardization (zero offset). The instrument is capable of displaying pH and
mV of the sample, with temperature compensation. The Automatic Titrator can
accept a variety of electrodes to cater to various applications in different
fields. The liquid path is comprised of Teflon tubing, a Teflon lined valve and
gas tight burette with a Teflon plunger head. It creates a chemically inert
system for any sensitive analysis. The instrument is supplied with high speed
vortex stirrer with digital speed indication. This specially designed stirrer
provides excellent homogenous mixing of samples. An optional magnetic stirrer
is also available
Technical Specifications
Specifications
Conforms to
the Specifications of:
ASTM D664,
D2896, D3227, D4739
Principle:
Volume determination by equivalence point, end point or pH STAT.
Control:
Microcontroller based
mV range: ±
3200 mV.
AcCuracy: ±
0.1 mV (± 0.0016 pH).
Amplifier
input impedance: > 10 ohms
Burette
Resolution: 1/5000 for 5 ml, 1/10000 for 10 ml, 1/5000 for 25 ml.
Filling
time: Less than 20 second
Keyboard:
Alphanumeric splash waterproof polyester soft keys.
Display: 40
x 2 line back lighted liquid crystal display (LCD).
Titration
Head: Manual stand with swiveling arm.
Stirrer
System: Microcontroller based variable speed, high torque vortex stirrer with
digital indication. (Magnetic Stirrer optional)
Sensors:
Electrodes for Potentiometric titration - (pH, Ion, Redox, Argentometric).
a) Any combination electrode.
b) Differential Electrode System
comprising sensing (Indicator) Electrode with BNC Connector and Reference
Electrode with 4mm Banana Connector. Electrode for KF/Voltametric titration
with BNC/TNC Connectors.
Temperature
sensor (PRT/PT100) Calibration: 3-point Calibration with user entered buffer
values and standardization with 7 pH buffer.
End Point
detection:
a) Potentiometric
b) Voltametric
c) Thermometric and Photometric.
Cut-off criteria:
a) Volume
b) End point
c) mV/pH.
Methods:
Titrations:
a) Acid base
b) Nonaqueous
c) Redox
d) Preciptiation
e) Complexometric
f) back titration
KF titration
(Optional)
Results:
a) Molarity
b) % Assay(wt),
c) % volume (ml)
d) ppm
e) mg/l
f)mg/g
g)g/l
h)
meq/l
i) mol/kg
j) TAN and TBN for oil samples.
Method
Storage: 50 methods with parameters.
Titrant
Molarity storage: 20 values
Input/Output
Peripheral Interface:
(a) Parallel Port: 1 - for
printer
(b) Serial Port: 2 - for
Balance & PC
Electrical
Requirements
85 to 260
VAC; 48 to 62 Hz
Dimensions
wxdxh,in.(cm):
12x16x16(30.48x40.64x40.64)
Additional
Accessories
K90500-1
Karl Fischer Titrator Burette Assembly
K90500-2
Filter Desiccant Dryer Tube
K90500-3
Magnetic Stirrer with Holding Ring
K90500-4
Magnetic Stirrer with Electrode Arm
K90500-5
Vessel Heating / Cooling Accessory
K90500-6 pH
Checker
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