I have an application where volumetric air flow is measured through venturi tubes and SMART Differential Pressure Transmitters (DPTs).
DPT sensor's Low Range limit & Upper Range Limit are -10mbar to 10mbar respectively.
The DPTs are calibrated 0~2mbar (LRV-URV).
In the PLC, the loops are configured 0 mbar to 4mbar (through HART communicator, new LRV-URV were set in the DPTs without applying these pressures).
So the Transmitters operate beyond their calibrated range. I think this is not O.K. but can someone be a little more specific in explaining this situation and possible set-backs (e.g. what about measurement accuracy, repeatability e.t.c.)
My e-mail is [email protected]
DPT sensor's Low Range limit & Upper Range Limit are -10mbar to 10mbar respectively.
The DPTs are calibrated 0~2mbar (LRV-URV).
In the PLC, the loops are configured 0 mbar to 4mbar (through HART communicator, new LRV-URV were set in the DPTs without applying these pressures).
So the Transmitters operate beyond their calibrated range. I think this is not O.K. but can someone be a little more specific in explaining this situation and possible set-backs (e.g. what about measurement accuracy, repeatability e.t.c.)
My e-mail is [email protected]