All PhD students at Chalmers have the same salary agreement. There are two salary stages depending on how far you have come in your studies (stage two after licentiate or mid-studies seminar). PhDs may, for good reasons such as significant work experience be given a higher salary than the minimum salary in the agreement, which is negotiated on regular basis by unions who represent PhD students. The agreement is written in Swedish, and can be downloaded as a PDF here:
Here is some information on how to get a Swedish bank account: Banking
https://intranet.chalmers.se/en/working-at-chalmers/working-hours-leave-salary-benefits/salary-benefits/payment-of-salary-wages-for-foreign-staff/