- Software
- IQANdesign
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Ideas
+2
VIN Low Error - Can we add a delay or disable the error
We have had multiple issues using ratiometric sensors that end up sending voltages below the 0.5 threshold. If the input drops to 0.250 then the system throws a VIN low error. The error value only exists for an instant. The sensor output is jumpy. I wish we could add some averaging, signal stabilization or add a delay on the error to filter out these events. Or maybe we could define the low error value instead of using the minimum/2.
In retrospect, it realize I could have set the range to 0 V and extrapolated the value of the output to keep the calibration the same, but I cannot do this on an existing program because the min and max outputs are not part of the calibration.
Customer support service by UserEcho
Put the vin in a function group and enable it after delay
The sensor is going out of range for an instant at various times. I can't reliable predict the out of range condition to disable the input. I have a 500-4500 mV ratiometric pressure sensor with a range of 0 to 100 psi. In certain transient conditions, the signal is dropping below 0 psi and the sensor is dropping below 250 mV and causing a low error. I would like to be able to lower low threshold or add a delay before the low error comes on.
I considered changing the range of the sensor to 250 to 4500 mV and adjust the output to -6.25 to 100, but this will not be backwards compatible without recalibrating the sensor.