Vatech Green 21 PCT-90LH User Manual page 86

7. Installing Software
10. Select the default port number 'COM4' and click on Next.
11. Select the language and click on Next.
12. Select the third-party software in use referring to the figures below, and click on
Next.
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Select the port No. 'COM4'. The same COM port No. should
be used between the equipment and PC.
Figure 7-8. Selecting the third-party software
Green21 (Model: PCT-90LH) Installation Manual