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Part No: RAVENHTHS |
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We manufacture high
temperature & low temperature viscometers and our models BS/C & BE/C
are specified for viscosity measurement by ACEA and SAE J300. The designated
methods for these instruments are ASTM D 4741, CEC L-36-A-90 and IP 370 .
Many will be aware that our competitors claim to achieve nearly 10
million reciprocal seconds shear rate. We do not believe this for sound and
cogent reasons which we are happy to discuss with you.
We guarantee
that they can achieve shear rates in excess of 2.5 million reciprocal seconds
and can prove from fundamental principles that those results are valid, which
is why the Ravenfield HTHS has the highest repeatability and reproducibility of
any available HTHS test method.
High Temperature High Shear Viscometers
BS/C Viscometer Ravenfield HTHS viscometers are the favoured testing equipment
of European lubricant manufacturers. Ravenfield instruments are specified in
the ACEA test regime.
Model BE/C is designed solely for testing at
150°C and 1 million reciprocal seconds while our models BS/C and BS/C+ are
full research grade instruments Models BS/C & BS/C+ The top selling
Ravenfield Viscometer is the HTHS Model BS/C.
This instrument measures
the High Temperature High Shear viscosity of engine lubricants according to
ASTM D 4741, CEC L-36-A-90 & IP370 as specified by SAE J300 and ACEA. ASTM
D 4741 is aligned with ASTM methods D 4683 (TBS) and D 5481 lubricant
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This high precision tapered
plug viscometer runs under computer control with a simple to operate user
interface. This semi-automatic instrument leads the operator through the
calibration and measurement procedures. By joining the Model BS/C to the Model
DR AutoSampler 18 oil samples can be tested without further operator
intervention making the sample testing procedure fully automatic. |
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The standard model of
BS/C is designed to measure at temperatures from 60°C to 180°C and
shear rates from 100,000 to 1,500,000 reciprocal seconds.
There is even
a facility to determine flow curves of oils automatically. It is now possible
to automatically control cell temperature and recalibrate on the fly from
samples on the carousel.
The BS/C+ is fitted with a more powerful motor
which enables it to measure at lower temperatures and higher shear rates than
the standard BS/C. Model BE/C The Ravenfield Designs Viscometer HTHS Model BE/C
also measures HTHS viscosity of engine lubricants according to the same
standard test methods as both the BS/C and BS/C+.
This manual high
precision tapered plug viscometer is the entry level HTHS viscometer suitable
for labs which only perform HTHS tests occasionally. Model BE/C is designed to
operate only under the standard conditions of 1,000,000 reciprocal seconds at
150°C |
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| For full data sheets
and a written quotation please contact our Mindex office on
sales@mindex-ltd.co.uk including
your company name, telephone numbers and details of your product of
interest |
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