- 27 - Rev 2
19.1. User Sensitivity
Sensitivity is a relative measure of response to changes in a control system. In this case it controls
how sensitive the ITV will be to pressure changes. The valid range for sensitivity is 0-7, where 0 is
the most sensitive and 7 is the least sensitive. The default sensitivity is 2. Changing the sensitivity
will change the pressure correction operation near the set pressure point. The lower the sensitivity
number, the more precise the ITV will try to maintain the setpoint. Sometimes lowering the
sensitivity number too much can cause the ITV to hunt and be less precise. The larger the
sensitivity number, the less likely hunting will occur, but the precision will be reduced.
19.2. User Gain
Gain is a measure of how quickly the unit will respond for a given change in pressure. The valid
range for gain is 0-15, where 0 is no gain and 15 is the most gain possible. The default gain is 8.
Increasing the gain will decrease response time but increase the possibility of overshoot to
pressure changes. Excessive gain can lead to oscillating corrections in pressure, resulting in
unstable pressure control. Decreasing the gain can ensure damped response to pressure changes
but increases the response time.
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