32 PET Plus User Manual
4.2 OVER TEMPERATURE DEVICE
A secondary temperature measuring device is fitted to protect the equipment should the main
temperature measuring device fail for any reason. The temperature at which it is activated is pre-set
at 400ºC.
4.3 SETTING THE TEST TEMPERATURE
The test temperature is selected using the relevant test set-up screen.
selecting Melt Temperature
Up to 0.7 IV
284ºC
Above 0.7 IV
295ºC
4.4 wHICH TEST TEMPERATURE TO USE
Generally, samples of IV up to 0.70 should be tested at 284ºC and IVs over 0.70 at 295ºC.
Die size
cm
IV at 284ºc
IV at 295ºc
15 thous
0.0381
0.43 to 0.62
NA
20 thous
0.0508
0.53 to 0.70
0.70 to 0.83
30 thous
0.0762
NA
0.74 to 1.14
40 thous
0.1016
NA
0.93 to 1.43
4.5 wHICH DIE SIzE TO USE
Note that one die is supplied with the equipment (size specified at time or order) but additional dies
may be purchased as required.
