The first thing you need to do is to figure out how your mount treats the Meridian ("meridian treatment", "meridian limit", etc), since ASIAIR does not really perform the flip -- it depends on the mount to do so by sending a GOTO command to the mount at the right time.
First, launch the ASIR app and look at Mount Settings. Navigate into "Meridian Flip Settings" in that window.
You should see two parameters, one is "Stop tracking x min before meridian" (in time) and the other is "Do AMF x min after Meridian" (also in time).
The first parameter is when ASIAIR tells the mount to stop tracking to keep the mount from passing to the other side of the pier. The ASIAIR notes down the camera angle before the Meridian is reached (it uses this later to determine if a Meridian flip is successful).
The second parameter is the time when the mount thinks it can issue a GOTO to the mount and cause the mount to perform a meridian flip.
ASIAIR does not send a "now do a meridian flip" command (most mounts don't support that). Instead, it send a simple GOTO, and let the mount determine if the target has passed the Meridian, and assume that the mount will execute a meridian flip when the target RA is on the wrong side of the pier. (This therefore depends on the east-west leveling of the mount base, unless the mount's internal model has been sync'ed to the sky coordinates -- each degree off level contributes to 4 minutes of time difference, otherwise).
So, first turn off Auto-Meridian flip, and take a look at that "Do AMF x min after Meridian" parameter. Position your OTA a few minutes before it reaches the Meridian and wait for the target RA to drift x minutes past the Meridian. See if you can send a GOTO to the mount (to the existing target) after that "x" minutes. If the mount does not execute a Meridian flip, nether can ASIAIR.
Your mount's meridian treatment must be set so that it will do a meridian flip once the time reaches and passed that "Do AMF x min after Meridian" parameter.
That is the only way ASIAIR can do a Meridian flip, since it does not really know how to do a meridian flip -- it simply stops the mount n minutes before the OTA reaches the meridian, and then wait until the target RA to be m minutes past the Meridian, when it starts sending GOTO commands to the mount.
It will retry that GOTO once a minute (waiting for the mount to execute its Meridian Flip) until it finds that the camera angle (from a plate solve) has flipped. And if memory serves, it does give up after a while.
Chen
