The Iris voltage affects ions of all masses in a similar manner.
| Minimum | Maximum | Default | Typical |
|---|---|---|---|
| -400 | 400 | 350 (positive ions) 0 (negative ions) | 350 (positive ions) 0 (negative ions) |
During manual tuning, the Iris voltage can be ramped to find an optimum value. Ramp defaults and limits are:
| Default (volts) | Limits (volts) | |
|---|---|---|
| Start (From) | -150 | -400 to (Stop - Step) |
| Stop (to) | 350 | (Start + Step) to 400 |
| Step Size (by) | 5 | 1 to (Stop - Start) |
See Also