|
|
 |
|
|
|
763 PVC Thermomat - Automatic determination of the thermal
stability of PVC
With the 763 PVC Thermomat Metrohm offers the first
fully PC-controlled instrument for the determination
of the thermal stability of PVC plastics. Data recording
and archiving in a database with automatic evaluation
of the curves is included in the scope of the instrument.
Two heating blocks allow to analyze 8 samples at one
or two different temperatures. Up to four PVC Thermomats
can be connected to a PC and operated simultaneously
with the included software. Optimum flexibility is achieved
by individual management of each sample and heating
block. With the disposable sample reaction vessels the
cleaning procedure is reduced to a minimum.
Determination of thermal stability of PVC
Chlorinated plastics on the basis of polyvinylchloride
(PVC) decompose at elevated temperatures releasing gaseous
HCl. This product of the thermal decomposition is blown
off by a stream of nitrogen into the measuring cell
filled with distilled water. The thermal stability
of the PVC materials is defined as the time that elapses
until HCl is released, and is determined by
measuring the conductivity in the measuring cell.
Features
With the 763 PVC Thermomat the determination of the thermal stability
of PVC type polymers takes place at a highly sophisticated level:
- 8 measuring stations at 2 different temperatures
- Up to 4 Rancimat instruments per PC - up to 32 samples
at up to 8 different temperatures!
- Wide temperature range (50 ... 220 °C)
- Individual start of each channel
- Disposable reaction vessels
- Completely PC-controlled
- Database archive with sorting, filtering, data export
- Automatic evaluation with additional, computer-supported
manual evaluation using the tangent method
- Temperature extrapolation: conversion of the results
to other temperatures, e.g. storage temperature
- Integrated validation features
- Certified GLP set for exact calibration of the instrument
National and international standards
- DIN 53381 part 1: Determination of the Thermostability
of PVC
- DIN VDE 0472 part 614: Examination of insulated
cables - Thermostability
- ISO 182 - 3: Plastics - Determination of
the tendency of PVC based polymers to evolve HCl at
elevated temperatures - part 3: Conductometric method
|
Applications fields
Quality control in PVC Industry
- Determination of PVC stability times of PVC resin, blended PVC, and PVC
products
- Examination of PVC additives (stabilizers, plastilizers)
|
Ordering information
| 2.763.0014 |
763 PVC Thermomat
(230 V, 50 ... 60 Hz) |
| 2.743.0015 |
763 PVC Thermomat
(115 V, 50 ... 60 Hz) |
Options
| 6.2059.000 |
Swivel base for 763 PVC Thermomat |
| 6.2757.000 |
Exhaust collection tube for 763 PVC Thermomat (including
8 sealing stoppers) |
| 6.1816.010 |
Silicone tubing, i.d. 6 mm, o.d. 9 mm; 22 cm long (8
pieces are required) |
| 6.1428.020 |
Measuring vessel (glass) |
| 6.2301.060 |
Conductivity standard c(KCl) = 0.1 mol/L, 250 mL |
| 6.5616.000 |
GLP Test Set for 743 Rancimat
|
|
Get more information
If you wish to get more information you may either submit our reply
form or send an e-mail to info@metrohm.com. |
Technical information
| Heating |
2 individually heated aluminum heating blocks |
| Max. number of samples |
8 (4 in each block) |
| Temperature range |
50 ... 220°C, can be set in steps of 1°C |
Temperature correction
|
-9.9 ... +9.9°C, can be set in steps of 0.1°C |
Max. deviation of set temperature
|
< 0.3°C |
Reproducibility of set temperature
|
< 0.2°C |
Stability of temperature (max. temperature fluctuation)
|
< 0.1°C |
Temperature difference between different measuring
positions
|
< 0.3°C |
| Heating time from 20°C |
|
| to 120°C |
approx. 45 min
|
| to 220°C |
approx. 60 min
|
| Gas supply |
external supply |
| Range of air flow |
4 ... 15 L/h |
| Max. deviation of flow |
± 10% |
| Conductivity measurement |
0 ... 500 µS/cm |
| Interface |
RS 232 C |
| Software |
Metrodata 763 PVC Thermomat software 1.0 |
| Dimensions |
Width 405 mm,
H height 353 mm (with accessories),
Depth 402 mm
|
| Weight |
26.2 kg
|
PC requirements
| Processor |
Pentium II with 233 MHz or higher |
| Operating system |
Microsoft WindowsTM
NT 4.0, 2000 or WindowsTM XP Professional
(recommend), WindowsTM 95, 98 or ME (possible) |
| RAM |
128 MB |
| Program files |
20 MB |
| Hard disk |
Min. 200 MB free disk space |
| Graphics adapter / monitor |
Resolution 1024 x 768 pixel or higher (recommended),
800 x 600 (possible) |
| Printer |
Any supported by WindowsTM |
| Interface |
1 free RS 232C port per instrument (max. 4) |
|
|
|
|
|
|
|
|
|
