Your pulse is measured in PPS, or "Pulses Per Sithra". A sithra (plural: "sithris"), is a measurement of time equal to fifty triads dexter. As a triad dexter is the same length as a human second, you may understand the pulse reading on your HUD as being "Pulses Per Fifty Seconds".

Finally, gravity is measured in Felysian Gravity Units, or FGs. The gravity of Felysia is 1FG, which is slightly less than the gravity on Earth. Therefore, gravity on all planets is measured by comparison to that of Felysia. The Artificial Gravity Field produced by your Stardrifter has a strength of exactly 1FG.