Test Method
The ability of a lubricating oil to separate from water and resist
emulsification is an important performance characteristic for applications
involving water contamination and turbulence. Water separability is
determined by stirring equal volumes of water and sample together at a
controlled temperature to form an emulsion and observing the time
required for separation of the emulsion to occur. This method is suitable for
petroleum oils and synthetic fluids
Water Separability Tester
. Tests emulsion characteristics of lubricating oils
. Seven sample capacity
. Movable digital stirrer with microprocessor control incorporates advanced
features for flexibility and ease of operation
. Clear, illuminated heating bath provides excellent visibility
. Microprocessor temperature control with digital display and built-in
protection against over temperature and low liquid level hazards
. Conforms to ASTM, ISO and related standards for water separability testing
. Optional sensor for direct measurement of sample temperature
. With built in drain for convenient draining of bath medium
Seven-sample Water Separability Tester provides full visibility and
microprocessor control of all functions for simplified, accurate testing of up to
seven samples at a time. Use for specification of new oils and monitoring of
in-service petroleum oils and synthetic fluids.
Seven position heating bath - A full visibility bath immerses seven 100mL
cylinders at the proper depth per ASTM and ISO specifications. Sample
cylinders are held securely in place by stainless steel supports inside the bath.
A microprocessor based heater controls bath operating controls bath fluid
temperature with greater than ±1°C accuracy and stability throughout the
operating range of 25°C to 84°C. Large LED readouts display setpoint and
actual temperatures in Celsius or Fahrenheit scale at the operator's option. For
most samples, ASTM/ISO sample temperatures of 54°C and 82°C are attained
within 10 minutes after placement of the test cylinders into the stabilized bath.
Clear polycarbonate tank has backlighting for excellent visibility when viewing
emulsion separations in the test cylinders. Cut-off circuits for low water level
and over-temperature conditions provide protection in the event of equipment
malfunction. Easy removal of top plate for filling or cleaning the bath.
Polycarbonate jar is encased in a Polyester-Epoxy finished steel housing with
a protective distortion-free viewing window and a solid foundation.
Microprocessor sample stirrer - To avoid sample movement, the sample stirrer
housing pivots to each test position in the bath and locks securely in place
at the required position in relation to the 100mL sample cylinder. The digital
stirrer offers complete flexibility for test duration and stirring speed at the push
of a button. Operating speed and count down time are prominently displayed
on a large backlit LCD panel. A wide operating range of 0-2000rpm permits
in-house customized testing with ±1rpm accuracy, and the operator may select
a stirring time of up to 99.99 minutes. At the end of the selected interval, the
stirrer automatically shuts off and alerts the operator with audible and visual
signals that the settling period has commenced. For added convenience, all test
parameters are stored in memory and repeated in subsequent tests until they
are changed by the operator. Engaging the stirrer mechanism is visible to the
operator and housed in a clear tube for added safety.
Specifications
Conforms to the specifications of : ASTM D1401, D6074, D6158; ISO 6614;
DIN 51599; FTM 791-3201; NF T 60-125
Stirrer Range: 0-2000rpm
Accuracy: ±1.0rpm
Drive: 1/10hp (75W), high torque
Bath Temperature Range: 25°C to 84°C
Control Stability: ±0.05°C
Capacity: seven (7) 100mL graduated cylinders
Construction: Clear polycarbonate tank 10"x11.25"x9.5" (25.5x28x24cm)
Medium: Water or white technical oil
Medium Capacity: 15.15L (4 gal)
Electrical Requirements:
115V, 60Hz, Single Phase, 12A ;
220-240V 50/60 Hz, Single Phase, 12A
Conforms to the specifications of : ASTM D6082
Temperature Control:
Digital Setpoint and Displays °C/°F switchable ,
Built-in Over temperature Cut-off Protection
