Surface
and Interfacial Tensiometer
- Du Nouy Principle
Instrument
for finding out Surface
and Interfacial Tension
of Oil against Water
by ring Method
as per IS 6104-1971.
Applications
Oils, Detergents,
Dyes, Cosmetics,
Insecticides, Pharmaceutical,
Emulsifiers, Biological
Fluids, Mineral
Beneficiation, transformer
oil etc.
Meets
IS & ASTM Specification
IS 6104-1971
D-971 for interfacial
and surface tension
of oil against
water.
D-1590 Test
for water and
waste water
D-1331 for Surface
and interfacial
tension of detergent.
Specification
Range: 0 to 90 dynes,
Readings are in dynes
per centimeter, dual
scale on front of
the instrument and
carries a vernier
that can be read directly
to 0.02 dynes.
The instrument is
supplied with one
platinum ring of 6cm
circumference, one
sample dish, one length
torsion wire, one
spirit level, instruction
manual, standard chart
and carrying case.
The instrument is
Electrically operated
(hand operated is
also available)
MICROPROCESSOR
BASED SURFACE & INTERFACIAL
TENSIOMETER
With Digital Read Out
As per IS 6104-1971
Working
Principle
The
Microprocessor based Tensiometer
works on the principle of
electronic Force Balancing,
the most accurate and sensitive
method of sensing the force
required to pull the ring
from the liquid interface.
A precision electric
coil is freely suspended
in a magnetic field. The
ring is attached to this
coil, the applied pull
attempts to displace the
coil. An optical circuit
senses the displacement
of the coil and balancing
circuit produces a current
flowing through the coil,
producing an electromotive
force, which restores
the coil to its original
position. The output is
scaled to display this
value in N/m.
The applied current is
measured and this is the
measure of the force required
to pull the ring.
Most analytical balances
use this method due to
the accuracy and repeatability
achievable.
Specification
:
Seven
Segment (LED)
Digital
Display
:
Newton / Meter
Units
of Display
:
0.001 N/m
Resolution
:
6 cm
Diameter
of Platinum ring
:
Motorized
switch Operated
Raising
of Sample platform
:
Motorized
switch Operated
Lowering
of sample platform
(Positioning mode)
:
Motorized
automatic , Microprocessor
Controlled
Lowering
of sample platform(Test
mode)
:
220
volts AC
Power
:
220 volts AC
Power
Requirement
:
150
Watts Approx
Other
Products for Transformer
Oil Test
Acidity
Testing kit , Apparatus
for Oxidation test as per
IP-56 & IS-335, Oil
Test Set (testing Di-electric
strength), Colorimeter as
per IS 335, Aging Test Oven,
flash point apparatus ,
viscometers etc.
