The Lens1 DC voltage controls the voltage applied to Lens1. Lens 1 DC affects ions of all masses in a similar manner. An incorrect Lens1 DC setting will result in no, or greatly reduced, ion transmission.
| Minimum | Maximum | Default | Typical |
|---|---|---|---|
| -5.0 | 5.0 | 2.0 | +2.0 (positive ions) -2.0 (negative ions) |
During manual tuning, the Lens1 DC voltage can be ramped to find an optimum value. Ramp defaults and limits are:
| Default (volts) | Limits (volts) | |
|---|---|---|
| Start (From) | -5 | -5 to (Stop - Step) |
| Stop (to) | 5 | (Start + Step) to 5 |
| Step Size (by) | 0.1 | 0.1 to (Stop - Start) |
See Also