If the process signal has short erroneous high or low peaks, the slew rate limiting can be used to cut their effects. The slew rate damping limits the maximum change for the output signal in 1 s. The slew rate limit damping is recommended for random noise suppression as it is non-linear.
You can set the slew rate limit in the menu item 5 SLEW RATE. Typical values depend on the concentration unit but are typically 0.05 % to 1 % when the concentration is measured in %.
The following figure gives an example of different slew rate limits.
| Avoid overdamping, the signal should not be made insensitive. |