Integral continues to totalize when input is false

[WaterWorks]

Lookout 6.02.1

I am using the Integral object to totalize flows. 

The input for this only goes true when we have overflow from a sewer manhole.

As long as I have flow over 1 m3/min the unit reads correctly. (Max flow is 2.5m3/min).

When I get a flow below 1 the unit is adding 1 every minute instead of actual flow (eg .5 m3/min).

Any ideas. 

The other thing it does, is not shut off again even if the input appears to be false. So once triggered it will record flow every day even if there is no flow.

For example it may read the overflow the first day but on the second day when there is no flow it will read 1440 m3.

1 m3/min for 1440 minutes. I have created a couple of different Integral objects and the problem can be duplicated at this site.

I have a copy of Lookout in the office and can not duplicate the problem.

[jbesselm]

Check your data type. If the flow signal is coming from a PLC A/I and your data type is signed, then an analog value below 4 mA(3.99) would be interpreted as a large positive number and supply a value to the integral object. You may need to establish a low flow cutoff in the trigger to prevent totalizing values that are not flow small zero offset errors. 

[WaterWorks]

Thanks, I will check data types next trip.  I do know that I use Floating Point data. 

I have low flow cutoff set but maybe I have missed the data types.

However it does not explain why it is not totalizing properly when the flow is less than 1 ( eg .5 m3/min).

I quess I will need to spend some time playing on this site.