L60iF Issue 9 November 2018
20
A1.2 Accuracy of reading
The accuracy attainable with the L60iF depends on a number of factors. In principle, the calibration
procedure relies on the flow gauge used to set flow rates during the sequence. It follows that the flow gauge
itself must be the best available and also have been calibrated by a Test House having traceable standards.
The temperature calibration uses a highly accurate sensor as the primary temperature reference, whose
output is accurate to ±0.5°C.
The L60iF assumes that the error in flow reading is linear with temperature, an assumption justified by tests.
The flow indication is ±0.5 litre/minute over the working range of approximately 50- to 65 litre/minute.