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Rolling Thin Film Oven
Model CS 325B
AASHTO Designation
T240
ASTM Designation
D2872
For more information or pricing on any of these
products, please contact us.
| The rolling thin film
oven test is used to measure the effect of heat
and air on a moving film of semi-solid asphaltic
materials. The results of this treatment are
determined from measurements of the asphalt
properties before and after the test. |
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General Description
The CS325-B precision oven is
designed for the specific requirements in the State of
California method 346, AASHTO T240 and ASTM
D2872.
Repeatability of the test is
directly related to the accuracy with the oven temperature
can be maintained to the specific standard temperature of
163°C, and the reproducibility of the thermal rise time of
the system. The CS325-B has been designed to perform or
exceed the specification requirements as detailed by
AASHTO and ASTM.
The oven temperature is sampled
by a precision RTD sensor exposed to the supervised
environment. The thermal mass of the sensor is extremely
low having a thermal/electrical time constant measurable
in seconds. The controller accepts the signal from the RTD
sensor and precisely displays the process temperature
while providing an accurate output control signal to
maintain the process at the required control point. The
controller operates in the PID mode. It has a programmable
auto tune feature which automatically establishes the
tuning constants. The PID constants may be fine-tuned by
the operator at any time, if desired, and secured from
further modification by unauthorized personnel. The
controller employs a unique suppression feature which
allows for the quickest response time without excessive
overshoot. Dual 4 digit displays allows viewing of the
process temperature and set point simultaneously.
The CS325-B oven is double walled and designed
to conform exactly to the AASHTO and ASTM
specifications for interior dimensions and location of
critical components. |
INTERIOR VIEW
Net Weight
Shipping Weight
Overall Dimensions
Shipping Dimensions |
254 lbs.
380 lbs.
40"W 36"H
26"D
48"W 46"H
35"D |
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SPECIFICATIONS
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Construction |
16 gauge welded
steel exterior.
18 gauge corrosion resistant stainless steel interior. |
| Insulation |
3-1/2 inches of
high density fiberglass insulation |
| Controller |
Programmable micro
processor UL listed |
|
Display |
Temperature - 4
digit red LED's
Set point - 4 digit green LED's |
|
Thermal Protection |
Prevents oven from
overheating in the event of control failure |
| Temperature Range |
Ambient to 200°C |
|
Vents |
Double exhaust
vents for dissipation of expended volatile from
specimen |
| Flow Meter |
Range 200 - 14000
ML/MIN |
| Air Pressure Gauge |
Range 0 - 100 P.S.I. |
| Air Flow Adjustment |
Needle valve (long
taper) |
| Heat Exchanger |
5/16" dia. copper
tube |
|
Blower Motor |
Model - Grainger
6K092 Thermal protection (manual reset) |
|
Rack Motor and Gear Reducer |
Model - NSY-12RG
Bodine Protection (fuses) |
|
Voltage |
240v AC 50/60 Hz,
single phase, 9.3 amps, 2240 watts |
PARTS
LIST
CS325B RTF OVEN PARTS
LIST
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Item # Description
325:01B...Bodine Rack Motor
60cycle
325:01A...Dayton Rack Motor 50cycle
325:02......Heating Coil
325:03......Power Switch
325:04......Sample Rack Switch
325:06......Blower Switch
325:07......Sample Rack Assembly
325:08......Sample Rack Spindle Bushing-(1 set)
325:09B...Blower Motor 60cycle
325:09A...Blower Motor 50cycle
325:10......Blower Motor Flexible Coupling
325:11......Blower Spindle Housing
325:12......Blower Shaft-3/8 Diameter
325:13......Blower Bushings
325:14......Squirrel Cage
325:15......Top Motor Mount
325:16......Air Heating Coil
325:17......Flow Meter Adjustment Valve
325:20......Moisture Indicator
325:21......Air Regulator
325:26......Sample Bottles-Clear
325:27......Sample Bottles-Frosted
325:28......Air Nozzle
325:29......Rack Shaft
325:30......Rack Fingers-(set of 8)
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Item # Description
325:31...Transformer
325:32...Rack Spindle Housing
325:33...Silicon Gasket for Door (per inch)
325:33B.Silicon Gasket for Door Glass (per inch)
325:35....Plastic Handle for Door
325:36....Handle Assembly (include #35)
325:37....Silica Gel-1LB can
325:38....Pyrex Plate
325:39....Thermometer
325:40....Chain
325:41....Transite Plate
325:42....Latch-Set (inside)
325:44....DC Motor Control
325:51A.RTD Sensor
325:51B.RTD Sensor
325:53....Controller-Series B
325:54....lst Micro Switch Cvr
325:55....Jar Tongs
325:56....Drive Gear 25B15(small 60Hz)
325:57....Drive Gear 25B25(medium 50Hz)
325:58....Drive Gear 25B30 (large 60Hz)
325:60....Bearing Housing
325:61....Manual
325:62....Dry Air System
325:63....Precision Thermostat Switch |
For more information or pricing on any of these
products, please contact us.
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