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| The gelation point is usually characterized by a sudden, pronounced increase in material viscosity |
The determination
of the gelation point for thermosetting compounds is critical in
evaluating the rate of polymerization for materials such as resins,
waxes, varnishes, styrenes, monomers, potting compounds, melamine,
formaldehydes, unsaturated oils, thermosetting foodstuffs, and other
polymerizable materials. The gelation point is usually characterized by
a sudden, pronounced increase in material viscosity (thickness).
The gelation point can help determine shelf life of a substance by
plotting the log of gel time vs.1/t (absolute temperature). Simply
determine gel times at two or more elevated temperatures and extrapolate
to ambient. The points should fall into a straight line. A Gel Time
meter provides a highly reliable means for measuring the gel time
defined as the time for the material under test to reach the incipient
gelled state at a constantly, controlled temperature.
Model 2295A Digital Temperature Controller
The Model 2295A provides the ultimate in safe, automatic, variable
temperature control. It is the ideal way to provide temperature bath
control for gel time testing. Simply set the front panel to the desired
set point (up to 315° C) and the 2259A maintains precise temperature
regulation to within ± 0.2° C after temperature stabilization. |
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Features
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- Ideal
for production, quality control and research work
- Simple,
Intuitive operation
- Determine
precise gelation point for thermosetting compounds
- Reproducible
results within ±1%
- Automatic
shut-off at Gel Point for error-free testing
- Audible
and visual indication at gel point
- Self-indicating
to nearest second
- Fully
automatic temperature controler available (Model 2295A)
- Portable
Design: Compact and lightweight
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ApplicationsGel
Time Meter and Components
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- A
typical system used to measure the gelation point consists
of the following items:
- The
test sample is placed into a test tube and immersed within a
constant temperature bath
- A
rotating glass rod spindle is placed into the sample
- The
glass rod is attached to a torsion wire being driven by a
synchronous motor rotating at 1 rpm
- Timing
commences and the Gel time meter monitors the test until the
gel point has been reached
- The Gel
Time is displayed and a beeper and indicator light provide
audible and visual indication of the gel time being reached
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SPECIFICATIONS
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Model 2295A
Temperature Controller
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| Display |
4 1/2
digit LED 1/2" high |
| Temperature Range |
32 to 1,562°
F (0 to 850° C) |
| Accuracy /
Resolution |
± 1° C (0 to 325°
C) / 0.1° for Centigrade scale |
| Input Sensor Type |
K Type
Thermocouple |
| Power |
120 VAC,
50/60 Hz |
| CAT
NO. |
 |
MODEL |
|
DEscRIPTION |
|
AVAIL |
|
PRICE |
| 22A |
|
22A |
|
Gel Time
Meter, 120V/60Hz |
|
Yes |
|
3,013,200
|
| 22A/50 |
|
22A/50 |
|
Gel Time
Meter, 120V/50Hz |
|
Yes |
|
3,013,200
|
| 22A-240 |
|
22A-240 |
|
Gel Time
Meter, 240V60Hz |
|
Yes |
|
3,445,200
|
| 22A-240/50 |
|
22A-240/50 |
|
Gel Time
Meter, 240V/50Hz |
|
Yes |
|
3,445,200
|
| 2295A |
|
WD-68900-01 |
|
Digital
Temperature Controller |
|
Yes |
|
1,501,200
|
| 2296 |
|
2296 |
|
Thermocouple
Type K with 5 Foot Coil Cord |
|
Yes |
|
270,000
|
| 22A Kit A |
|
22A Kit A |
|
Start up Kit |
|
Yes |
|
Call
031-777-1588
|
| (12)
Test Tubes (2232-5),(12) Stirring Rods (2242-1), (12) Plastic
Sleeves,large & small 2242-2), (12) Allen Set Screws (2242-5), (1)
Allen Wrench Small, (0.035”)(2232-31) |
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이 상품에 대한 사용후기가 아직 없습니다.
사용후기를 작성해 주시면 다른 분들께 많은 도움이 됩니다. |
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이 상품에 대한 질문이 아직 없습니다.
궁금하신 사항은 이곳에 질문하여 주십시오. |
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현재위치 : 
